Doctoral dissertation

• Skjold-Ødegaard, Benedicte; Søreide, Kjetil; Ersdal, Hege Langli (2026). Surgical training in laparoscopic appendectomy for junior trainees: A structured program, mixed methods and systems perspective. (external link)
• Reite, Andreas; Vetrhus, Morten; Søreide, Kjetil (2019). “Epidemiology, Risk Assessment and Outcomes in Ruptured Abdominal Aortic Aneurysms”. (external link)
• Søreide, Kjetil (2007). Metachronous and recurrent cancer development in colorectal neoplasia : clinical aspects, molecular biomarkers and proteomic patterns in surveillance and risk evaluation. (external link)

Academic article

• Roalsø, Marcus Thomas Thor; Lucocq, James; Pandanaboyana, Sanjay et al. (2025). Surgery for metastasis to the pancreas: systematic review of observational cohort studies. (external link)
• Møller, Jannicke Horjen; Søreide, Kjetil; Buanes, Eirik Alnes et al. (2025). Incidence, Mortality, and Long-Term Survival in Patients With Acute Pancreatitis Admitted to Intensive Care: A Nationwide Cohort Study. (external link)
• Søreide, Kjetil; Veen, Torhild; Hauge, Elen Martine et al. (2025). The gender gap between female medical students and recruitment to surgical training in Norway: A cross-sectional, nationwide cohort study of medical students, surgical trainees, and specialists. (external link)
• Veen, Torhild; Lea, Dordi; Roalsø, Marcus Thomas Thor et al. (2025). Repeat hepatectomy for colorectal liver metastasis with rates of second and third hepatectomy: time-to-recurrence and overall survival in a population-derived cohort. (external link)
• Søreide, Kjetil; Hauge, Elen Martine; Torkildsen, Cecilie Fredvik et al. (2025). Time-trend analysis of female rates among certified surgeon specialists across 10 surgical specialties in Norway. (external link)
• Søreide, Kjetil; Møller, Jannicke Horjen; Strand, Kristian et al. (2025). Malpractice and compensation claims for acute pancreatitis in Norway: characteristics of claimants, claim-rates, outcomes and indemnity compensation. (external link)
• Maier, Eva; Stättner, Stefan; Carrion-Alvarez, Lucia et al. (2025). The E-AHPBA-ESSO-Innsbruck consensus recommendations on peri- and postoperative management following liver resection. (external link)
• Roalsø, Marcus Thomas Thor; Nymo, Linn Såve; Kleive, Dyre et al. (2025). Sex Disparity and Procedure-Related Differences in Achieving an Ideal Outcome after Pancreatic Surgery: A National Observational Cohort Study. (external link)
• Roalsø, Marcus Thomas Thor; Nymo, Linn Såve; Kleive, Dyre et al. (2025). Pancreatectomy in a national universal healthcare system: sex- and age-adjusted resection rates across four health regions related to a composite ideal outcome. (external link)
• Skjold-Ødegaard, Benedicte; Braut, Geir Sverre; Ersdal, Hege Langli et al. (2025). Claims filed after perceived malpractice in management of acute appendicitis: An observational nationwide cohort study. (external link)
• Sturesson, Christian; Søreide, Kjetil (2025). Preoperative management and resectability criteria in perihilar cholangiocarcinoma. (external link)
• Oanæs, Celine; Alexeeva, Marina; Søreide, Kjetil et al. (2025). Salting-out assisted liquid-liquid extraction for UPLC-MS/MS determination of bile acids and kynurenine-, indole- and serotonin-pathway metabolites of tryptophan in human serum of healthy probands. (external link)
• Roalsø, Marcus Thomas Thor; Hughes, Daniel L.; Larsson, Patrik et al. (2025). Mucinous cystic neoplasia (MCN) of the pancreas: systematic review and meta-analysis of sex differences in prevalence and malignancy risk between males and females. (external link)
• Hallet, Julie; Shapiro, Joel; Pascher, Andreas et al. (2025). Care of neuroendocrine tumours: The Collaborative of sUrgical Teams for NeuroEndocrine Tumors (CUTNETs). (external link)
• Reese, Tim; Gilg, Stefan; Besselink, Marc G. et al. (2025). Preferred content, construct, and duration of a fellowship structure in HPB surgery: a cross-sectional, pan-European survey among trainees and trainers. (external link)
• Lucocq, James; Søreide, Kjetil; Pandanaboyana, Sanjay (2024). ASO Author Reflections: Response to Chemotherapy Differs between Precursor Epithelial Subtypes of Pancreatic Adenocarcinoma Arising from Intraductal Papillary Mucinous Neoplasms and may Warrant Tailored Treatment to Improve Outcomes. (external link)
• Lucocq, James; Hawkyard, Jake; Robertson, Francis P. et al. (2024). Risk of Recurrence After Surgical Resection for Adenocarcinoma Arising From Intraductal Papillary Mucinous Neoplasia (IPMN) With Patterns of Distribution and Treatment: An International, Multicenter, Observational Study (ADENO-IPMN Study). (external link)
• Kanani, Arezo; Veen, Torhild; Lea, Dordi et al. (2024). Neoadjuvant Immunotherapy Followed by Surgery Compared with Upfront Surgery Alone in Operable Colon Cancer with Deficient Mismatch Repair: Modeling Oncological Outcomes and Numbers Needed to Treat. (external link)
• Labori, Knut Jørgen; Bratlie, Svein Olav; Andersson, Bodil et al. (2024). Neoadjuvant FOLFIRINOX versus upfront surgery for resectable pancreatic head cancer (NORPACT-1): a multicentre, randomised, phase 2 trial. (external link)
• Skjold-Ødegaard, Benedicte; Ersdal, Hege Langli; Assmus, Jörg et al. (2024). Internal and external factors affecting the performance score of surgical trainees doing laparoscopic appendectomy: a prospective, observational cohort study in a structured training programme. (external link)
• Lucocq, James; Haugk, Beate; Joseph, Nejo et al. (2024). Invasive intraductal oncocytic papillary neoplasms (IOPN) and adenocarcimoma arising from intraductal papillary mucinous neoplasms (A-IPMN) of the pancreas: comparative analysis of clinicopathological features, patterns of recurrence and survival: a multicentre study. (external link)
• Lea, Dordi; Zaharia, Claudia; Søreide, Kjetil (2024). Programmed death ligand-1 (PD-L1) clone 22C3 expression in resected colorectal cancer as companion diagnostics for immune checkpoint inhibitor therapy: A comparison study and inter-rater agreement evaluation across proposed cut-offs and predictive (TPS, CPS and IC) scores. (external link)
• Tidwell, Tia; Røsland, Gro Vatne; Tronstad, Karl Johan et al. (2024). Comparing in vitro cytotoxic drug sensitivity in colon and pancreatic cancer using 2D and 3D cell models: Contrasting viability and growth inhibition in clinically relevant dose and repeated drug cycles. (external link)
• Veen, Torhild; Kanani, Arezo; Zaharia, Claudia et al. (2024). Treatment-sequencing before and after index hepatectomy with either synchronous or metachronous colorectal liver metastasis: Comparison of recurrence risk, repeat hepatectomy and overall survival in a population-derived cohort. (external link)
• Roalsø, Marcus Thomas Thor; Alexeeva, Marina; Oanæs, Celine et al. (2024). Patient-derived organoids from pancreatic cancer after pancreatectomy: Feasibility and organoid take rate in treatment-naïve periampullary tumors. (external link)
• Harrison, Ewen M.; Gobin, N.; Freitas, A.V. et al. (2024). Development and external validation of the 'Global Surgical-Site Infection' (GloSSI) predictive model in adult patients undergoing gastrointestinal surgery. (external link)
• Brandl, Andreas; Lundon, Dara; Siriwardena, Ajith K. et al. (2024). Surgical management of pancreatic neuroendocrine tumors – An EYSAC and E-AHPBA international survey of current practice. (external link)
• Lucocq, James; Joseph, Nejo; Hawkyard, Jake et al. (2024). Predictors of long-term survival after resection of adenocarcinoma arising from intraductal papillary mucinous neoplasm and derivation of a prognostic model: An international multicenter study (ADENO-IPMN study). (external link)
• Lucocq, James; Haugk, Beate; Parkinson, Daniel et al. (2024). Precursor Epithelial Subtypes of Adenocarcinoma Arising from Intraductal Papillary Mucinous Neoplasms (A-IPMN): Clinicopathological Features, Recurrence and Response to Adjuvant Chemotherapy. (external link)
• Søreide, Kjetil; Dopazo, Cristina; Berrevoet, Frederik et al. (2024). Biliary tract cancer. (external link)
• Lucocq, James; Hawkyard, Jake; Haugk, Beate et al. (2024). Adjuvant chemotherapy for adenocarcinoma arising from intraductal papillary mucinous neoplasia: Multicentre ADENO-IPMN study. (external link)
• Søreide, Kjetil; Berrevoet, Frederik; Frigerio, Isabella et al. (2024). Benefits and barriers to accreditation of HPB center and fellowship programs in Europe: a strength-weakness-opportunity-and-threats (SWOT) analysis by an E-AHPBA-ESSO-UEMS ad hoc working committee. (external link)
• Primavesi, Florian; Maglione, Manuel; Cipriani, Federica et al. (2023). E-AHPBA-ESSO-ESSR Innsbruck consensus guidelines for preoperative liver function assessment before hepatectomy. (external link)
• Fuglseth, Hanne; Søreide, Kjetil; Vetrhus, Morten (2023). Acute mesenteric ischaemia. (external link)
• Cobianchi, Lorenzo; Piccolo, Daniele; Mas, Francesca Dal et al. (2023). Surgeons’ perspectives on artificial intelligence to support clinical decision-making in trauma and emergency contexts: results from an international survey. (external link)
• Ghotbi, Jacob; Yakub, Sheraz; Søreide, Kjetil (2023). Management of extrahepatic bile duct cysts. (external link)
• Yakub, Sheraz; Margonis, Georgios Antonios; Søreide, Kjetil (2023). Staged or Simultaneous Surgery for Colon or Rectal Cancer with Synchronous Liver Metastases: Implications for Study Design and Clinical Endpoints. (external link)
• Øyri, Sina Furnes; Søreide, Kjetil; Søreide, Eldar et al. (2023). Learning from experience: a qualitative study of surgeons' perspectives on reporting and dealing with serious adverse events. (external link)
• Takala, Sini; Lassen, Kristoffer; Søreide, Kjetil et al. (2023). Practice patterns in diagnostics, staging, and management strategies of gallbladder cancer among Nordic tertiary centers. (external link)
• Søreide, Kjetil; Ismail, Warsan; Roalsø, Marcus Thomas Thor et al. (2023). Early Diagnosis of Pancreatic Cancer: Clinical Premonitions, Timely Precursor Detection and Increased Curative-Intent Surgery. (external link)
• Larsen, Johannes Wiik; Thorsen, Kenneth; Søreide, Kjetil (2023). Splenic injury from blunt trauma. (external link)
• Søreide, Kjetil; Rangelova, Elena; Dopazo, Christina et al. (2023). Pancreatic cancer. (external link)
• Woodhouse, Braden; Barreto, Savio G.; Søreide, Kjetil et al. (2023). A core set of quality performance indicators for HPB procedures: a global consensus for hepatectomy, pancreatectomy, and complex biliary surgery. (external link)
• Kachapila, Mwayi; Monahan, Mark; Ademuyiwa, Adesoji O. et al. (2023). Exploring the cost-effectiveness of high versus low perioperative fraction of inspired oxygen in the prevention of surgical site infections among abdominal surgery patients in three low- and middle-income countries. (external link)
• Zaharia, Claudia; Søreide, Kjetil (2023). Call for better response evaluation after neoadjuvant therapy in pancreatic cancer. (external link)
• Thunnissen, Floris M.; Comes, Daan J.; Latenstein, Carmen S.S. et al. (2023). A mixed-methods study to define Textbook Outcome for the treatment of patients with uncomplicated symptomatic gallstone disease with hospital variation analyses in Dutch trial data. (external link)
• Roalsø, Marcus Thomas Thor; Karlsen, Lars Normann; Buchmann, Petr et al. (2023). En ung mann med akutte magesmerter og anemi. (external link)
• Hess, Benjamin; Cahenzli, Martin; Forbes, Alastair et al. (2023). Management of acute mesenteric ischaemia: Results of a worldwide survey. (external link)
• Kørner, Hartwig; Guren, Marianne; Larsen, Inger Kristin et al. (2022). Characteristics and fate of patients with rectal cancer not entering a curative-intent treatment pathway: A complete nationwide registry cohort of 3,304 patients. (external link)
• Weber, Clemens; Andreassen, Joakim Stray; Isles, Siobhan et al. (2022). Incidence, Mechanisms of Injury and Mortality of Severe Traumatic Brain Injury: An Observational Population-Based Cohort Study from New Zealand and Norway. (external link)
• Søreide, Kjetil (2022). Time to halt perioperative chemotherapy for resectable colorectal liver metastasis?. (external link)
• Weber, Clemens; Werner, David Andreas Thomas; Thorsen, Kenneth et al. (2022). Health Care Implications of the COVID-19 Pandemic for Patients with Severe Traumatic Brain Injury—A Nationwide, Observational Cohort Study. (external link)
• Simoes, Joana FF; Adamina, Michel; Ademuyiwa, Adesoji et al. (2022). The impact of surgical delay on resectability of colorectal cancer: An international prospective cohort study. (external link)
• Nævdal, Geir; Rofstad, Einar K; Søreide, Kjetil et al. (2022). Fluid-sensitive migration mechanisms predict association between metastasis and high interstitial fluid pressure in pancreatic cancer. (external link)
• Coccolini, Federico; Sartelli, Massimo; Kluger, Yoram et al. (2022). The LIFE TRIAD of emergency general surgery. (external link)
• Manuel-Vázquez, Alba; Balakrishnan, Anita; Agami, Paul et al. (2022). A scoring system for predicting malignancy in intraductal papillary mucinous neoplasms of the pancreas: a multicenter EUROPEAN validation. (external link)
• Larsen, Johannes Wiik; Søreide, Kjetil; Søreide, Jon Arne et al. (2022). Epidemiology of abdominal trauma: An age- and sex-adjusted incidence analysis with mortality patterns. (external link)
• Glasbey, James C; Abbott, Tom EF; Ademuyiwa, Adesoji et al. (2022). Elective surgery system strengthening: development, measurement, and validation of the surgical preparedness index across 1632 hospitals in 119 countries. (external link)
• Søreide, Kjetil; Skjold-Ødegaard, Benedicte (2022). A multilevel, step-based model to evaluate progress in procedure efficiency for laparoscopic appendicectomy in surgical training: structured evaluation using 'ebb-and-flow' and 'string-of-pearls' concepts. (external link)
• Alser, Osaid; Gallastegi, Ander Dorken; Gebran, Anthony et al. (2022). Outcomes and Their State-level Variation in Patients Undergoing Surgery With Perioperative SARS-CoV-2 Infection in the USA: A Prospective Multicenter Study. (external link)
• Andreassen, Joakim Stray; Thorsen, Kenneth; Søreide, Kjetil et al. (2022). Is there a weekend effect on mortality rate and outcome for moderate and severe traumatic brain injury? A population-based, observational cohort study. (external link)
• Zaharia, Claudia; Søreide, Kjetil (2022). Accuracy of Lymph Node Staging in Pancreatic Cancer after Neoadjuvant Therapy. (external link)
• Reuter, Anna; Rogge, Lisa; Monahan, Mark et al. (2022). Global economic burden of unmet surgical need for appendicitis. (external link)
• Mckay, Siobhan C; Drake, Thomas M.; Spiers, Harry VM et al. (2022). Outcomes of patients undergoing elective liver and pancreas cancer surgery during the SARS-CoV-2 pandemic: an international, multicentre, prospective cohort study. (external link)
• Gebran, Anthony; Gaitanidis, Apostolos; Argandykov, Dias et al. (2022). Mortality and pulmonary complications in emergency general surgery patients with COVID-19: A large international multicenter study. (external link)
• Ghotbi, Jacob; Sahakyan, Mushegh; Søreide, Kjetil et al. (2022). Minimally Invasive Pancreatoduodenectomy: Contemporary Practice, Evidence, and Knowledge Gaps. (external link)
• Tidwell, Tia R.; Røsland, Gro Vatne; Tronstad, Karl Johan et al. (2022). Metabolic flux analysis of 3D spheroids reveals significant differences in glucose metabolism from matched 2D cultures of colorectal cancer and pancreatic ductal adenocarcinoma cell lines. (external link)
• Weber, Clemens; Andreassen, Joakim Stray; BEHBAHANI, MAZIAR et al. (2022). Characteristics, image findings and clinical outcome of moderate and severe traumatic brain injury among severely injured children: a population-based cohort study. (external link)
• Coccolini, Federico; Kluger, Yoram; Moore, Ernest E. et al. (2021). Trauma quality indicators: internationally approved core factors for trauma management quality evaluation. (external link)
• Davies, Justine I; Gelb, Adrian W.; Gore-Booth, Julian et al. (2021). Global surgery, obstetric, and anaesthesia indicator definitions and reporting: An Utstein consensus report. (external link)
• Skjold-Ødegaard, Benedicte; Hamid, Sehrish; Lindeman, Robbert-Jan Sjoerd et al. (2021). Deciphering the inflection points to achieve proficiency for each procedure step during training in laparoscopic appendicectomy. (external link)
• Søreide, Kjetil; Marchegiani, Giovanni (2021). Clinical Management of Pancreatic Premalignant Lesions. (external link)
• Sgarbura, Olivia; Mackenzie, Graham; Holmberg, Marcus et al. (2021). Social Media for the Hepato-Pancreato-Biliary community (#SoMe4HPB): connecting a specialized online group for scientific and clinical knowledge dissemination. (external link)
• Lea, Dordi; Gudlaugsson, Einar G.; Skaland, Ivar et al. (2021). Digital Image Analysis of the Proliferation Markers Ki67 and Phosphohistone H3 in Gastroenteropancreatic Neuroendocrine Neoplasms: Accuracy of Grading Compared with Routine Manual Hot Spot Evaluation of the Ki67 Index. (external link)
• Søreide, Kjetil; Skjold-Ødegaard, Benedicte; Thorsen, Kenneth et al. (2021). Adhesions after open and laparoscopic abdominal surgery. (external link)
• Lea, Dordi; Watson, Martin Matthew Christian; Skaland, Ivar et al. (2021). A template to quantify the location and density of CD3 + and CD8 + tumor-infiltrating lymphocytes in colon cancer by digital pathology on whole slides for an objective, standardized immune score assessment. (external link)
• Skjold-Ødegaard, Benedicte; Ersdal, Hege Langli; Assmus, Jörg et al. (2021). Development and clinical implementation of a structured, simulation-based training programme in laparoscopic appendectomy: Description, validation and evaluation. (external link)
• Kanani, Arezo; Veen, Torhild; Søreide, Kjetil (2021). Neoadjuvant immunotherapy in primary and metastatic colorectal cancer. (external link)
• Khatri, C.; Ward, AE; Nepogodiev, D et al. (2021). Outcomes after perioperative SARS-CoV-2 infection in patients with proximal femoral fractures: an international cohort study. (external link)
• Søreide, Jon Arne; Kvaløy, Jan Terje; Lea, Dordi et al. (2021). The overriding role of surgery and tumor grade for long-term survival in patients with gastroenteropancreatic neuroendocrine neoplasms: A population-based cohort study. (external link)
• Meshkinfamfard, Maryam; Narvestad, Jon; Larsen, Johannes Wiik et al. (2021). Structured and systematic team and procedure training in severe trauma: Going from ‘Zero to Hero’ for a time-critical, low-volume emergency procedure over three time periods. (external link)
• Thorsen, Kenneth; Narvestad, Jon; Tjosevik, Kjell Egil et al. (2021). Changing from a two-tiered to a one-tiered trauma team activation protocol: a before–after observational cohort study investigating the clinical impact of undertriage. (external link)
• Simoes, Joana FF; Li, Elizabeth; Glasbey, James C et al. (2021). COVID-19-related absence among surgeons: development of an international surgical workforce prediction model. (external link)
• Glasbey, James C; Ademuyiwa, Adesoji; Adisa, Adewale et al. (2021). Effect of COVID-19 pandemic lockdowns on planned cancer surgery for 15 tumour types in 61 countries: an international, prospective, cohort study.. (external link)
• Au, S.; Bellato, V.; Carvas, J.M. et al. (2021). Global parental leave in surgical careers: differences according to gender, geographical regions and surgical career stages. (external link)
• Alhourani, Abdelnour; Tidwell, Tia; Bokil, Ansooya Avinash et al. (2021). Metformin treatment response is dependent on glucose growth conditions and metabolic phenotype in colorectal cancer cells. (external link)
• Skjold-Ødegaard, Benedicte; Ersdal, Hege Langli; Assmus, Jörg et al. (2021). Comparison of performance score for female and male residents in general surgery doing supervised real-life laparoscopic appendectomy: Is there a Norse shield-maiden effect?. (external link)
• Lorenzon, Laura; Grossman, Rebecca C.; Søreide, Kjetil (2020). Impact of randomized controlled trials in the social media: Does science trend as much as everyday events?. (external link)
• Larsen, Johannes Wiik; Thorsen, Kenneth; Sandve, Knut Olav Lende et al. (2020). Incidence and characteristics of pancreatic injuries among trauma patients admitted to a Norwegian trauma centre: a population-based cohort study. (external link)
• Drake, Thomas M.; Pata, Francesco; Ghosh, Dhruv et al. (2020). Surgical site infection after gastrointestinal surgery in children: an international, multicentre, prospective cohort study.. (external link)
• Søreide, Kjetil; Yaqub, Sheraz; Hallet, Julie et al. (2020). A Risk Model of Admitting Patients with Silent SARS-CoV-2 Infection to Surgery and Development of Severe Postoperative Outcomes and Death: Projections Over 24 Months for 5 Geographical Regions. (external link)
• Nymo, Linn Såve; Kleive, Dyre; Waardal, Kim et al. (2020). Centralizing a national pancreatoduodenectomy service: striking the right balance. (external link)
• Grossman, Rebecca C.; Mackenzie, Douglas Graham; Keller, Deborah S. et al. (2020). #SoMe4Surgery: From inception to impact. (external link)
• Watson, Martin Matthew Christian; Lea, Dordi; Gudlaugsson, Einar et al. (2020). Prevalence of PD‑L1 expression is associated with EMAST, density of peritumoral T‑cells and recurrence‑free survival in operable non‑metastatic colorectal cancer. (external link)
• Mackenzie, Graham; Søreide, Kjetil; Polom, Karol et al. (2020). Beyond the hashtag – An exploration of tweeting and replies at the European Society of Surgical Oncology 39th clinical conference (ESSO39). (external link)
• Thorsen, Kenneth; Vetrhus, Morten; Narvestad, Jon et al. (2020). Performance and outcome evaluation of emergency resuscitative thoracotomy in a Norwegian trauma centre: a population-based consecutive series with survival benefits. (external link)
• Lindeman, Robbert-Jan Sjoerd; Sund, Malin; Löfgren, Jenny et al. (2020). Preventing spread of SARS-CoV-2 and preparing for the COVID-19 outbreak in the surgical department: Perspectives from two Scandinavian countries. (external link)
• Roalsø, Marcus Thomas Thor; Aunan, Jan Rune; Søreide, Kjetil (2020). Refined TNM-staging for pancreatic adenocarcinoma – Real progress or much ado about nothing?. (external link)
• Stormark, Kjartan; Krarup, Peter-Martin; Sjövall, Annika et al. (2020). Anastomotic leak after surgery for colon cancer and effect on long‐term survival. (external link)
• Glasbey, James C; Nepogodiev, Dmitri; Simoes, Joana FF et al. (2020). Elective Cancer Surgery in COVID-19-Free Surgical Pathways During the SARS-CoV-2 Pandemic: An International, Multicenter, Comparative Cohort Study. (external link)
• Nepogodiev, Dmitri; Glasbey, James C; Li, Elizabeth et al. (2020). Mortality and pulmonary complications in patients undergoing surgery with perioperative SARS-CoV-2 infection: an international cohort study. (external link)
• Nepogodiev, Dmitri; Omar, Omar M; Glasbey, James C et al. (2020). Elective surgery cancellations due to the COVID-19 pandemic: global predictive modelling to inform surgical recovery plans. (external link)
• Bennett, Sean; Søreide, Kjetil; Gholami, Sepideh et al. (2020). Strategies for the delay of surgery in the management of resectable hepatobiliary malignancies during the COVID-19 pandemic. (external link)
• Søreide, Kjetil; Weber, Clemens; Thorsen, Kenneth (2020). Priorities for research in trauma care: creating a bucket list. (external link)
• Reite, Andreas; Søreide, Kjetil; Kvaløy, Jan Terje et al. (2020). Long-Term Outcomes After Open Repair for Ruptured Abdominal Aortic Aneurysm. (external link)
• Søreide, Kjetil; Primavesi, Florian; Labori, Knut Jørgen et al. (2019). Molecular biology in pancreatic ductal adenocarcinoma: implications for future diagnostics and therapy. (external link)
• Søreide, Kjetil; Mackenzie, Graham; Polom, Karol et al. (2019). Tweeting the meeting: Quantitative and qualitative twitter activity during the 38th ESSO conference. (external link)
• Thomas, Hannah S.; Weiser, Thomas G.; Drake, Thomas M. et al. (2019). Pooled analysis of WHO Surgical Safety Checklist use and mortality after emergency laparotomy. (external link)
• Andersson, Roland; Søreide, Kjetil; Ansari, Daniel (2019). The dilemma of drains after pancreatoduodenectomy: Still an issue?. (external link)
• Glasbey, James C.; Adisa, Adewale O.; Costas-Chavarri, Ainhoa et al. (2019). Global variation in anastomosis and end colostomy formation following left-sided colorectal resection.. (external link)
• Watson, Martin; Lea, Dordi; Hagland, Hanne Røland et al. (2019). Elevated microsatellite alterations at selected tetranucleotides (EMAST) is not attributed to MSH3 loss in stage I-III colon cancer: An automated, digitalized assessment by immunohistochemistry of whole slides and hot spots. (external link)
• Søreide, Kjetil; Nymo, Linn Såve; Kleive, Dyre et al. (2019). Variation in use of open and laparoscopic distal pancreatectomy and associated outcome metrics in a universal health care system. (external link)
• Andersson, Roland; Søreide, Kjetil; Ansari, Daniel (2019). Surgical Infections and Antibiotic Stewardship: In Need for New Directions. (external link)
• Berg, Kaja Christine Graue; Sveen, Anita; Høland, Maren et al. (2019). Gene expression profiles of CMS2-epithelial/canonical colorectal cancers are largely driven by DNA copy number gains. (external link)
• Vennesland, Jørgen Bendik; Søreide, Kjetil; Kvaløy, Jan Terje et al. (2019). A Population-Based Study of Incidence, Presentation, Management and Outcome of Primary Thromboembolic Ischemia in the Upper Extremity. (external link)
• Watson, Martin; Kanani, Arezo; Lea, Dordi et al. (2019). Elevated Microsatellite Alterations at Selected Tetranucleotides (EMAST) in Colorectal Cancer is Associated with an Elderly, Frail Phenotype and Improved Recurrence-Free Survival. (external link)
• Safiri, Saed; Sepanlou, Sadaf G.; Ikuta, Kevin S. et al. (2019). The global, regional, and national burden of colorectal cancer and its attributable risk factors in 195 countries and territories, 1990–2017: a systematic analysis for the Global Burden of Disease Study 2017. (external link)
• Pourshams, Akram; Sepanlou, Sadaf G.; Ikuta, Kevin S. et al. (2019). The global, regional, and national burden of pancreatic cancer and its attributable risk factors in 195 countries and territories, 1990-2017: a systematic analysis for the Global Burden of Disease Study 2017. (external link)
• Søreide, Kjetil; Olsen, Frank; Nymo, Linn Såve et al. (2018). A nationwide cohort study of resection rates and short-term outcomes in open and laparoscopic distal pancreatectomy. (external link)
• Nymo, Linn Såve; Søreide, Kjetil; Kleive, Dyre et al. (2018). The effect of centralization on short term outcomes of pancreatoduodenectomy in a universal health care system. (external link)
• Søreide, Kjetil (2018). Numbers needed to tweet: social media and impact on surgery. (external link)
• Oltedal, Satu; Kørner, Hartwig; Aasprong, Ole Gunnar et al. (2018). The Prognostic Relevance of Sentinel Lymph Node Metastases Assessed by PHGR1 mRNA Quantification in Stage I to III Colon Cancer. (external link)
• Lassen, Kristoffer; Nymo, Linn Såve; Olsen, Frank et al. (2018). Contemporary practice and short-term outcomes after liver resections in a complete national cohort. (external link)
• Holmer, Hampus; Bekele, Abebe; Hagander, Lars et al. (2018). Evaluating the collection, comparability and findings of six global surgery indicators. (external link)
• Kleive, Dyre; Sahakyan, Mushegh; Søreide, Kjetil et al. (2018). Risk for hemorrhage after pancreatoduodenectomy with venous resection. (external link)
• Vonlanthen, René; Lodge, Peter; Barkun, Jeffrey S. et al. (2018). Toward a consensus on centralization in surgery. (external link)
• Lassen, Kristoffer; Nymo, Linn Såve; Olsen, Frank et al. (2018). Benchmarking of aggregated length of stay after open and laparoscopic surgery for cancers of the digestive system. (external link)
• Chiaro, Marco Del; Søreide, Kjetil (2018). Trials and tribulations of neoadjuvant therapy in pancreatic cancer. (external link)
• Søreide, Kjetil; Winter, Desmond C. (2018). Global surgery in an ecosystem for worldwide health. (external link)
• Hagland, Hanne Røland; Lea, Dordi; Watson, Martin Matthew Christian et al. (2017). Correlation of blood T-cells to intratumoural density and location of CD3+ and CD8+ T-cells in colorectal cancer. (external link)
• Lind, Guro Elisabeth; Guriby, Marianne; Ahlquist, Terje Cruickshank et al. (2017). Prognostic relevance of an epigenetic biomarker panel in sentinel lymph nodes from colon cancer patients. (external link)
• Søreide, Kjetil (2017). Cancer biology of small gastrointestinal stromal tumors (<2 cm): What is the risk of malignancy?. (external link)
• Søreide, Kjetil; Reite, Andreas; Haaverstad, Rune (2017). Missed diagnosis of a large, right-sided diaphragmatic rupture with herniated liver and concomitant liver laceration after blunt trauma: consequences for delayed surgical repair. (external link)
• Vetrhus, Morten; Reite, Andreas; Vennesland, Jørgen Bendik et al. (2017). Characteristics, Stratification and Time to Death in a Population-Based Cohort of Patients with Ruptured Abdominal Aortic Aneurysms Not Undergoing Surgery. (external link)
• Sartelli, Massimo; Labricciosa, Francesco M.; Barbadoro, Pamela et al. (2017). The Global Alliance for Infections in Surgery: Defining a model for antimicrobial stewardship-results from an international cross-sectional survey. (external link)
• Sugrue, M.; Maier, R.; Moore, E.E. et al. (2017). Proceedings of resources for optimal care of acute care and emergency surgery consensus summit Donegal Ireland. (external link)
• Søreide, Jon Arne; Sandvik, Oddvar Mathias; Søreide, Kjetil (2016). Improving pancreas surgery over time: Performance factors related to transition of care and patient volume. (external link)
• Søreide, Jon Arne; Undersrud, Erling Sandøy; Al-Saiddi, Mohammed et al. (2016). Primary Leiomyosarcoma of the Pancreas—a Case Report and a Comprehensive Review. (external link)
• Watson, Martin Matthew Christian; Søreide, Kjetil (2016). The prognostic yield of biomarkers harvested in chemotherapy-naive stage ii colon cancer: Can we separate the wheat from the chaff?. (external link)
• Boermeester, Marja A.; Humes, David J.; Velmahos, George C. et al. (2016). Contemporary review of risk-stratified management in acute uncomplicated and complicated diverticulitis. (external link)
• Søreide, Kjetil; Thorsen, Kenneth; Søreide, Jon Arne (2016). Clinical patterns of presentation and attenuated inflammatory response in octo- and nonagenarians with perforated gastroduodenal ulcers.. (external link)
• Søreide, Kjetil (2016). Measuring the health-related Sustainable Development Goals in 188 countries: a baseline analysis from the Global Burden of Disease Study 2015.. (external link)
• Reite, Andreas; Søreide, Kjetil; Vetrhus, Morten (2016). Comparing the accuracy of four prognostic scoring systems in patients operated on for ruptured abdominal aortic aneurysms. (external link)
• Bhangu, Aneel; Fitzgerald, J. E. F.; Ademuyiwa, O. et al. (2016). Mortality of emergency abdominal surgery in high-, middle- and low-income countries.. (external link)
• Sandvik, Oddvar Mathias; Søreide, Kjetil; Gudlaugsson, Einar et al. (2016). Epidemiology and classification of gastroenteropancreatic neuroendocrine neoplasms using current coding criteria. (external link)
• Drake, Thomas M.; Fitzgerald, J. Edward F; Poenaru, Dan et al. (2016). Determinants of morbidity and mortality following emergency abdominal surgery in children in low-income and middle-income countries. (external link)
• Stormark, Kjartan; Søreide, Kjetil; Søreide, Jon Arne et al. (2016). Nationwide implementation of laparoscopic surgery for colon cancer: short-term outcomes and long-term survival in a population-based cohort. (external link)
• Søreide, Kjetil (2016). Current insight into pathophysiology of gastroduodenal ulcers: Why do only some ulcers perforate?. (external link)
• Thorsen, Kenneth; Søreide, Jon Arne; Søreide, Kjetil (2016). Long-term mortality in patients operated for perforated peptic ulcer: factors limiting longevity are dominated by older age, comorbidity burden and severe postoperative complications. (external link)
• Vos, Theo; Allen, Christine; Arora, Megha et al. (2016). Global, regional, and national incidence, prevalence, and years lived with disability for 310 diseases and injuries, 1990-2015: a systematic analysis for the Global Burden of Disease Study 2015. (external link)
• Søreide, Kjetil; Watson, Martin Matthew Christian; Lea, Dordi et al. (2016). Assessment of clinically related outcomes and biomarker analysis for translational integration in colorectal cancer (ACROBATICC): Study protocol for a population-based, consecutive cohort of surgically treated colorectal cancers and resected colorectal liver metastasis. (external link)
• Sartelli, Massimo; Weber, Dieter G.; Ruppe, Etienne et al. (2016). Antimicrobials: A global alliance for optimizing their rational use in intra-abdominal infections (AGORA). (external link)
• Tursi, Antonio; Brandimarte, Giovanni; Mario, Francesco Di et al. (2016). Predictive value of the Diverticular Inflammation and Complication Assessment (DICA) endoscopic classification on the outcome of diverticular disease of the colon: An international study. (external link)
• Wang, Haidong; Naghavi, Mohsen; Allen, Christine et al. (2016). Global, regional, and national life expectancy, all-cause mortality, and cause-specific mortality for 249 causes of death, 1980-2015: a systematic analysis for the Global Burden of Disease Study 2015. (external link)
• Rushfeldt, Christian; Agledahl, Uwe; Sveinbjørnsson, Baldur et al. (2016). Effect of Perioperative Dexamethasone and Different NSAIDs on Anastomotic Leak Risk: A Propensity Score Analysis. (external link)
• Watson, Martin Matthew Christian; Lea, Dordi; Rewcastle, Emma et al. (2016). Elevated microsatellite alterations at selected tetranucleotides in early-stage colorectal cancers with and without high-frequency microsatellite instability: same, same but different?. (external link)
• Kassebaum, Nicholas J.; Arora, Megha; Barber, Ryan M. et al. (2016). Global, regional, and national disability-adjusted life-years (DALYs) for 315 diseases and injuries and healthy life expectancy (HALE), 1990-2015: a systematic analysis for the Global Burden of Disease Study 2015. (external link)
• Søreide, Kjetil; Sandvik, Oddvar Mathias; Søreide, Jon Arne et al. (2016). Global epidemiology of gastrointestinal stromal tumours (GIST): A systematic review of population-based cohort studies. (external link)
• Haagsma, Juanita A.; Graetz, Nicholas; Bollinger, Ian et al. (2016). The global burden of injury: incidence, mortality, disability-adjusted life years and time trends from the Global Burden of Disease study 2013. (external link)
• Harboe, Knut; Ellingsen, Christian Lycke; Sudmann, Einar et al. (2015). Can bone apposition predict the retention force of a femoral stem? An experimental weight-bearing hip-implant model in goats.. (external link)
• Bhangu, Aneel; Søreide, Kjetil; Saverio, Salomone Di et al. (2015). Acute appendicitis: Modern understanding of pathogenesis, diagnosis, and management. (external link)
• Søreide, Kjetil; Thorsen, Kenneth; Harrison, Ewen M. et al. (2015). Perforated peptic ulcer. (external link)
• Veen, Torhild; Stormark, Kjartan; Nedrebø, Bjørn Steinar Olden et al. (2015). Long-term follow-up and survivorship after completing systematic surveillance in stage I–III colorectal cancer: who is still at risk?. (external link)
• Murray, Christopher J.L.; Barber, Ryan M.; Foreman, Kyle J. et al. (2015). Global, regional, and national disability-adjusted life years (DALYs) for 306 diseases and injuries and healthy life expectancy (HALE) for 188 countries, 1990-2013: quantifying the epidemiological transition.. (external link)
• Fitzmaurice, Christina; Dicker, Daniel; Pain, Amanda et al. (2015). The Global Burden of Cancer 2013. (external link)
• Reite, Andreas; Søreide, Kjetil; Ellingsen, Christian Lycke et al. (2015). Epidemiology of ruptured abdominal aortic aneurysms in a well-defined Norwegian population with trends in incidence, intervention rate, and mortality. (external link)
• Berg, Marianne; Nordgård, Oddmund; Kørner, Hartwig et al. (2015). Molecular subtypes in stage II-III colon cancer defined by genomic instability: Early recurrence-risk associated with a high copy-number variation and loss of RUNX3 and CDKN2A. (external link)
• Narvestad, Jon; Meshkinfamfard, Maryam; Søreide, Kjetil (2015). Emergency resuscitative thoracotomy performed in European civilian trauma patients with blunt or penetrating injuries: a systematic review. (external link)
• Vos, Theo; Barber, Ryan M.; Bell, Brad et al. (2015). Global, regional, and national incidence, prevalence, and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries, 1990-2013: A systematic analysis for the Global Burden of Disease Study 2013. (external link)
• Sandvik, Oddvar Mathias; Søreide, Kjetil; Gudlaugsson, Einar et al. (2015). Surgery for Gastrointestinal Stromal Tumors (GISTs) of the stomach and small bowel: Short- And long-term outcomes over three decades. (external link)
• Berg, Marianne; Hagland, Hanne; Søreide, Kjetil (2014). Comparison of CpG island methylator phenotype (CIMP) frequency in colon cancer using different probe- and gene-specific scoring alternatives on recommended multi-gene panels. (external link)
• Kristiansen, Thomas; Lossius, Hans Morten; Rehn, Marius et al. (2014). Epidemiology of trauma: A population-based study of geographical risk factors for injury deaths in the working-age population of Norway. (external link)
• Thorsen, Kenneth; Søreide, Jon Arne; Søreide, Kjetil (2014). What is the best predictor of mortality in perforated peptic ulcer disease? A population-based, multivariable regression analysis including three clinical scoring systems. (external link)
• Bhangu, Aneel; Fitzgerald, J. Edward; Fergusson, Stuart et al. (2014). Determining universal processes related to best outcome in emergency abdominal surgery: A multicentre, international, prospective cohort study. (external link)
• Søreide, Kjetil; Thorsen, Kenneth; Søreide, Jon Arne (2014). Predicting outcomes in patients with perforated gastroduodenal ulcers: artificial neural network modelling indicates a highly complex disease. (external link)
• Naghavi, Mohsen; Wang, Haidong; Lozano, Rafael et al. (2014). Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: A systematic analysis for the Global Burden of Disease Study 2013. (external link)
• Harboe, Knut; Gjerdet, Nils Roar; Sudmann, Einar et al. (2014). Assessment of retention force and bone apposition in two differently coated femoral stems after 6 months of loading in a goat model. (external link)
• Søreide, Kjetil (2014). Acute Budd-Chiari syndrome associated with non-viral cryptogenic hepatocellular carcinoma: revisiting the ‘chicken or the egg’theory. (external link)
• Glomsaker, Tom Birger; Hoff, Geir; Kvaløy, Jan Terje et al. (2013). Patient-reported outcome measures after endoscopic retrograde cholangiopancreatography: a prospective, multicentre study. (external link)
• Nedrebø, Bjørn Steinar Olden; Søreide, Kjetil; Eriksen, Morten Tandberg et al. (2013). Excess mortality after curative surgery for colorectal cancer changes over time and differs for patients with colon versus rectal cancer. (external link)
• Nedrebø, Bjørn Steinar Olden; Søreide, Kjetil; Nesbakken, Arild et al. (2013). Risk factors associated with poor lymph node harvest after colon cancer surgery in a national cohort. (external link)
• Meling, Terje; Harboe, Knut; Enoksen, Cathrine Harstad et al. (2013). Reliable classification of children's fractures according to the comprehensive classification of long bone fractures by Muller. (external link)
• Berg, Marianne; Guriby, Marianne; Nordgård, Oddmund et al. (2013). Influence of microsatellite instability and KRAS and BRAF mutations on lymph node harvest in stage I–III colon cancers. (external link)
• Søreide, Kjetil; Søreide, Annbjørg (2013). Using patient-reported outcome measures for improved decision-making in patients with gastrointestinal cancer – the last clinical frontier in surgical oncology?. (external link)
• Thorsen, Kenneth; Søreide, Jon Arne; Kvaløy, Jan Terje et al. (2013). Epidemiology of perforated peptic ulcer: Age- and gender-adjusted analysis of incidence and mortality. (external link)
• Glomsaker, Tom Birger; Hoff, Geir; Kvaløy, Jan Terje et al. (2013). Patterns and predictive factors of complications after endoscopic retrograde cholangiopancreatography. (external link)
• Søreide, Kjetil; Træland, Jan Hallvard; Stokkeland, Pål Johan et al. (2012). Adherence to national guidelines for surveillance after curative resection of nonmetastatic colon and rectum cancer: a survey among Norwegian gastrointestinal surgeons. (external link)
• Søreide, Kjetil (2012). Tibial fracture with degloving injury of the foot. (external link)
• Nordgård, Oddmund; Oltedal, Satu; Aasprong, Ole Gunnar et al. (2012). Prognostic relevance of occult metastases detected by cytokeratin 20 and mucin 2 mRNA levels in sentinel lymph nodes from colon cancer patients. (external link)
• Berg, Marianne; Søreide, Kjetil (2012). EGFR and Downstream Genetic Alterations in KRAS/BRAF and PI3K/AKT Pathways in Colorectal Cancer — Implications for Targeted Therapy. (external link)
• Søreide, Kjetil; Sandvik, Oddvar Mathias; Søreide, Jon Arne et al. (2012). Tyrosine-kinase mutations in c-KIT and PDGFR-alpha genes of imatinib na &lt; ve adult patients with gastrointestinal stromal tumours (GISTs) of the stomach and small intestine: relation to tumour-biological risk-profile and long-term outcome. (external link)
• Meling, Terje; Harboe, Knut; Enoksen, Cathrine et al. (2012). How reliable and accurate is the AO/OTA comprehensive classification for adult long-bone fractures?. (external link)
• Glomsaker, Tom; Søreide, Kjetil; Hoff, Geir et al. (2011). Contemporary use of endoscopic retrograde cholangiopancreatography (ERCP): A Norwegian prospective, multicenter study. (external link)
• Søreide, Kjetil (2011). High-fidelity of Five Quasimonomorphic Mononucleotide Repeats to High-frequency Microsatellite Instability Distribution in Early-stage Adenocarcinoma of the Colon. (external link)
• Kristiansen, Thomas; Lossius, Hans Morten; Søreide, Kjetil et al. (2011). Patients referred to a Norwegian trauma centre: effect of transfer distance on injury patterns, use of resources and outcomes. (external link)
• Søreide, Kjetil; Søreide, Jon Arne; Kørner, Hartwig (2011). Prognostic role of carcinoembryonic antigen is influenced by microsatellite instability genotype and stage in locally advanced colorectal cancers. (external link)
• Søreide, Kjetil; Berg, Marianne; Skudal, Birthe Sofie et al. (2011). Advances in the understanding and treatment of colorectal cancer. (external link)
• Sandvik, Oddvar Mathias; Søreide, Kjetil; Kvaløy, Jan Terje et al. (2011). Epidemiology of gastrointestinal stromal tumours: single-institution experience and clinical presentation over three decades. (external link)
• Ringdal, Kjetil G.; Lossius, Hans Morten; Jones, Mary et al. (2011). Collecting core data in severely injured patients using a consensus trauma template: an international multicentre study. (external link)
• Glomsaker, Tom; Søreide, Kjetil; Aabakken, Lars et al. (2011). A national audit of temporal trends in endoscopic retrograde cholangiopancreatography in Norway. (external link)
• Nedrebø, Bjørn Steinar Olden; Søreide, Kjetil; Eriksen, Morten Tandberg et al. (2011). Survival effect of implementing national treatment strategies for curatively resected colonic and rectal cancer. (external link)
• Thorsen, Kenneth; Glomsaker, Tom; Meer, Andreas Von et al. (2011). Trends in diagnosis and surgical management of patients with perforated peptic ulcer. (external link)
• Meling, Terje; Harboe, Knut; Arthursson, Asvaldur et al. (2010). Steppingstones to the implementation of an inhospital fracture and dislocation registry using the AO/OTA classification : compliance, completeness and commitment. (external link)
• Søreide, Kjetil (2010). Temporal patterns of death after trauma: evaluation of circadian, diurnal, periodical and seasonal trends in 260 fatal injuries. (external link)
• Søreide, Kjetil (2010). Endoscopic surveillance after curative surgery for sporadic colorectal cancer: patient-tailored, tumor-targeted or biology-driven?. (external link)
• Søreide, Kjetil; Aagnes, Bjarte; Møller, Bjørn et al. (2010). Epidemiology of pancreatic cancer in Norway: trends in incidence, basis of diagnosis and survival 1965-2007. (external link)
• Søreide, Kjetil; Winter, Desmond C. (2010). Global survey of factors influencing choice of surgical journal for manuscript submission. (external link)
• Søreide, Kjetil; Nedrebø, Bjørn Steinar; Søreide, Jon Arne et al. (2009). Lymph node harvest in colon cancer: influence of microsatellite instability and proximal tumor location. (external link)
• Søreide, Kjetil; Krüger, Andreas J.; Ellingsen, Christian Lycke et al. (2009). Pediatric trauma deaths are predominated by severe head injuries during spring and summer. (external link)
• Kørner, Hartwig; Nielsen, Hans Jørgen; Søreide, Jon Arne et al. (2009). Diagnostic Accuracy of C-reactive Protein for Intraabdominal Infections After Colorectal Resections. (external link)
• Meling, Terje; Harboe, Knut; Søreide, Kjetil (2009). Incidence of traumatic long-bone fractures requiring in-hospital management: A prospective age- and gender-specific analysis of 4890 fractures. (external link)
• Søreide, Kjetil (2009). Receiver-operating characteristic curve analysis in diagnostic, prognostic and predictive biomarker research. (external link)
• Søreide, Kjetil; Slewa, Aida; Stokkeland, Pål J. et al. (2009). Microsatellite Instability and DNA Ploidy in Colorectal Cancer. (external link)
• Søreide, Kjetil; Glomsaker, Tom; Søreide, Jon Arne (2008). Surgery in Norway Beyond the Scalpel in the 21st Century. (external link)
• Søreide, Kjetil; Gudlaugsson, Einar; Skaland, Ivar et al. (2008). Metachronous cancer development in patients with sporadic colorectal adenomas - multivariate risk model with independent and combined value of hTERT and survivin. (external link)
• Søreide, Kjetil; Krüger, Andreas J.; Vårdal, AL et al. (2007). Epidemiology and contemporary patterns of trauma deaths: changing place, similar pace, older face. (external link)

Academic literature review

• Kofler, Alexander; Trattner, Marlene; Mairinger, Vivien et al. (2025). The Role of Perioperative Interleukin-6 Serum Levels on Liver Dysfunction and Infectious Complications After Hepatectomy—A Systematic Review. (external link)
• Oanæs, Celine; Roalsø, Marcus Thomas Thor; Alexeeva, Marina et al. (2025). Patient-Derived Organoids from Pancreatic Neuroendocrine Tumors: A Systematic Review of PDO Take Rates, Molecular–Biological Characteristics, and Potential for Clinical Utility. (external link)
• Stättner, S.; Søreide, Kjetil; Hallet, Julie et al. (2025). Theranostics in surgical oncology. (external link)
• Carrion-Alvarez, Lucia; Primavesi, Florian; Søreide, Kjetil et al. (2025). Liver metastases from colorectal cancer: A joint ESSO–EAHPBA–UEMS core curriculum collaboration. (external link)
• Dopazo, Cristina; Søreide, Kjetil; Rangelova, Elena et al. (2024). Hepatocellular carcinoma. (external link)
• Ansari, Daniel; Søreide, Kjetil; Andersson, Bodil et al. (2024). Surveillance after surgery for pancreatic cancer: a global scoping review of guidelines and a nordic Survey of contemporary practice. (external link)
• Coccolini, Federico; Sartelli, Massimo; Sawyer, Robert et al. (2023). Source control in emergency general surgery: WSES, GAIS, SIS-E, SIS-A guidelines. (external link)
• Veen, Torhild; Kanani, Arezo; Lea, Dordi et al. (2023). Clinical trials of neoadjuvant immune checkpoint inhibitors for early-stage operable colon and rectal cancer. (external link)
• Søreide, Kjetil; Stättner, Stefan; Hallet, Julie (2023). Surgery as a Principle and Technical Consideration for Primary Tumor Resection of Small Bowel Neuroendocrine Tumors. (external link)
• Ceelen, Wim; Søreide, Kjetil (2023). Randomized controlled trials and alternative study designs in surgical oncology. (external link)
• Søreide, Kjetil; Hallet, Julie; Jamieson, Nigel B. et al. (2023). Optimal surgical approach for digestive neuroendocrine neoplasia primaries: Oncological benefits versus short and long-term complications. (external link)
• Kanani, Arezo; Veen, Torhild; Alexeeva, Marina et al. (2023). Neoadjuvant immunotherapy in colorectal cancer beyond immune checkpoint inhibitors: emerging from bench to bedside. (external link)
• Zaharia, Claudia; Veen, Torhild; Lea, Dordi et al. (2022). Histopathological Growth Pattern in Colorectal Liver Metastasis and The Tumor Immune Microenvironment. (external link)
• Skjold-Ødegaard, Benedicte; Søreide, Kjetil (2022). The diagnostic differentiation challenge in acute appendicitis: How to distinguish between uncomplicated and complicated appendicitis in adults. (external link)
• Coccolini, Federico; Corradi, Francesco; Sartelli, Massimo et al. (2022). Postoperative pain management in non-traumatic emergency general surgery: WSES-GAIS-SIAARTI-AAST guidelines. (external link)
• Bala, Miklosh; Catena, Fausto; Kashuk, Jeffry et al. (2022). Acute mesenteric ischemia: updated guidelines of the World Society of Emergency Surgery. (external link)
• Podda, Mauro; Simone, Belinda De; Ceresoli, Marco et al. (2022). Follow-up strategies for patients with splenic trauma managed non-operatively: the 2022 World Society of Emergency Surgery consensus document. (external link)
• Roalsø, Marcus Thomas Thor; Hald, Øyvind; Alexeeva, Marina et al. (2022). Emerging Role of Epigenetic Alterations as Biomarkers and Novel Targets for Treatments in Pancreatic Ductal Adenocarcinoma. (external link)
• Grossman, Rebecca; Sgarbura, Olivia; Hallet, Julie et al. (2021). Social media in surgery: evolving role in research communication and beyond. (external link)
• Petrone, Patrizio; Espinoza-Villalobos, Sofía; Baltazar, Gerard A. et al. (2021). Fatal and non-fatal injuries due to suspension trauma syndrome: A systematic review of definition, pathophysiology, and management controversies. (external link)
• Kleive, Dyre; Aas, Eline; Angelsen, Jon-Helge et al. (2021). Simultaneous Resection of Primary Colorectal Cancer and Synchronous Liver Metastases: Contemporary Practice, Evidence and Knowledge Gaps. (external link)
• Cambridge, William A; Fairfield, Cameron; Powell, James J. et al. (2021). Meta-analysis and Meta-regression of Survival After Liver Transplantation for Unresectable Perihilar Cholangiocarcinoma. (external link)
• Zeyara, Adam; Torén, William; Søreide, Kjetil et al. (2021). The liver-first approach for synchronous colorectal liver metastases: A systematic review and meta-analysis of completion rates and effects on survival. (external link)
• Schache, Andrew G; Shaw, Richard; Ho, Michael Wing Sung et al. (2021). Global wealth disparities drive adherence to COVID-safe pathways in head and neck cancer surgery. (external link)
• Hage, Jos van der; Sandrucci, Sergio; Audisio, Riccardo et al. (2021). The ESSO core curriculum committee update on surgical oncology. (external link)
• Lindeman, Robbert-Jan Sjoerd; Søreide, Kjetil (2020). The many faces of Meckel's diverticulum: Update on management in incidental and symptomatic patients. (external link)
• Søreide, Kjetil; Hallet, Julie; Matthews, Jeffrey B. et al. (2020). Immediate and long-term impact of the COVID-19 pandemic on delivery of surgical services. (external link)
• Søreide, Kjetil; Roalsø, Marcus Thomas Thor; Aunan, Jan Rune (2020). Is There a Trojan Horse to Aggressive Pancreatic Cancer Biology? A Review of the Trypsin-PAR2 Axis to Proliferation, Early Invasion, and Metastasis. (external link)
• Saverio, Salomone Di; Podda, Mauro; Simone, Belinda De et al. (2020). Diagnosis and treatment of acute appendicitis: 2020 update of the WSES Jerusalem guidelines. (external link)
• Sahakyan, Mushegh; Labori, Knut Jørgen; Primavesi, Florian et al. (2019). Minimally invasive pancreatic surgery-where are we going?. (external link)
• Aunan, Jan Rune; Jamieson, Nigel B.; Søreide, Kjetil (2019). Observation or resection of pancreatic intraductal papillary mucinous neoplasm: An ongoing tug of war. (external link)
• Søreide, Kjetil; Guest, Rachel Victoria; Harrison, Ewen Munro et al. (2019). Systematic review of management of incidental gallbladder cancer after cholecystectomy. (external link)
• Drake, Thomas M.; Søreide, Kjetil (2019). Cancer epigenetics in solid organ tumours: A primer for surgical oncologists. (external link)
• Søreide, Kjetil; Healey, Andrew J.; Mole, Damian J. et al. (2019). Pre-, peri- and post-operative factors for the development of pancreatic fistula after pancreatic surgery. (external link)
• Broek, Richard P.G. ten; Krielen, Pepijn; Saverio, Salomone Di et al. (2018). Bologna guidelines for diagnosis and management of adhesive small bowel obstruction (ASBO): 2017 update of the evidence-based guidelines from the world society of emergency surgery ASBO working group. (external link)
• Søreide, Kjetil; Weiser, Thomas G.; Parks, Rowan W. (2018). Clinical update on management of pancreatic trauma. (external link)
• Nordgård, Oddmund; Tjensvoll, Kjersti; Gilje, Bjørnar et al. (2018). Circulating tumour cells and DNA as liquid biopsies in gastrointestinal cancer. (external link)
• Coccolini, Federico; Roberts, Derek; Ansaloni, Luca et al. (2018). The open abdomen in trauma and non-trauma patients: WSES guidelines. (external link)
• Cirocchi, Roberto; Søreide, Kjetil; Saverio, Salomone Di et al. (2018). Meta-analysis of perioperative outcomes of acute laparoscopic versus open repair of perforated gastroduodenal ulcers. (external link)
• Hansen, Carl-Christian; Søreide, Kjetil (2018). Systematic review of epidemiology, presentation, and management of Meckel's diverticulum in the 21st century. (external link)
• Drake, Thomas M.; Knight, Stephen R.; Harrison, Ewen M. et al. (2018). Global inequities in precision medicine and molecular cancer research. (external link)
• Sartelli, Massimo; Chichom-Mefire, Alain; Labricciosa, Francesco M. et al. (2017). The management of intra-abdominal infections from a global perspective: 2017 WSES guidelines for management of intra-abdominal infections. (external link)
• Aunan, Jan Rune; Cho, William C; Søreide, Kjetil (2017). The biology of aging and cancer: A brief overview of shared and divergent molecular hallmarks. (external link)
• Coccolini, Federico; Montori, Giulia; Ceresoli, Marco et al. (2017). The role of open abdomen in non-trauma patient: WSES Consensus Paper. (external link)
• Coccolini, Federico; Montori, Giulia; Catena, Fausto et al. (2017). Splenic trauma: WSES classification and guidelines for adult and pediatric patients. (external link)
• Sartelli, Massimo; Catena, Fausto; Abu-Zidan, Fikri M. et al. (2017). Management of intra-abdominal infections: Recommendations by the WSES 2016 consensus conference. (external link)
• Tidwell, Tia; Søreide, Kjetil; Hagland, Hanne Røland (2017). Aging, metabolism, and cancer development: From Peto's paradox to the Warburg effect. (external link)
• Antonsen, Ingrid; Berle, Veronica; Søreide, Kjetil (2017). Stumpe pancreasskader hos barn. (external link)
• Søreide, Kjetil; Labori, Knut Jørgen (2016). Risk factors and preventive strategies for post-operative pancreatic fistula after pancreatic surgery: a comprehensive review. (external link)
• Fitzmaurice, Christina; Allen, Christine; Barber, Ryan M. et al. (2016). Global, regional, and national cancer incidence, mortality, years of life lost, years lived with disability, and disability-adjusted life-years for 32 cancer groups, 1990 to 2015: A Systematic Analysis for the Global Burden of Disease Study Global Burden of Disease Cancer Collaboration. (external link)
• Søreide, Kjetil; Boermeester, Marja A.; Humes, David J. et al. (2016). Acute colonic diverticulitis: modern understanding of pathomechanisms, risk factors, disease burden and severity. (external link)
• Søreide, Kjetil (2016). A forensic inquiry into compliance to guidelines for emergency resuscitative thoracotomy in trauma: If the dead can't talk and the living won't tell, it is a story half told. (external link)
• Aunan, Jan Rune; Watson, Martin Matthew Christian; Hagland, Hanne et al. (2016). Molecular and biological hallmarks of ageing. (external link)
• Desserud, Kari Festøy; Veen, Torhild; Søreide, Kjetil (2016). Emergency general surgery in the geriatric patient. (external link)
• Tilsed, Jonathan V.T.; Casamassima, Andrea; Kurihara, Hayato et al. (2016). ESTES guidelines: acute mesenteric ischaemia. (external link)
• Søreide, Kjetil; Watson, Martin Matthew Christian; Hagland, Hanne Røland (2016). Deciphering the Molecular Code to Colorectal Liver Metastasis Biology Through Microsatellite Alterations and Allelic Loss: The Good, the Bad, and the Ugly. (external link)
• Saverio, Salomone Di; Birindelli, Arianna; Kelly, Micheal D. et al. (2016). WSES Jerusalem guidelines for diagnosis and treatment of acute appendicitis. (external link)
• Forouzanfar, Mohammad H.; Alexander, Lily; Anderson, H. Ross et al. (2015). Global, regional, and national comparative risk assessment of 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks in 188 countries, 1990-2013: A systematic analysis for the Global Burden of Disease Study 2013. (external link)
• Søreide, Kjetil; Sund, Malin (2015). Epidemiological-molecular evidence of metabolic reprogramming on proliferation, autophagy and cell signaling in pancreas cancer.. (external link)
• Søreide, Kjetil; Desserud, Kari Festøy (2015). Emergency surgery in the elderly: the balance between function, frailty, fatality and futility.. (external link)
• Hagland, Hanne Røland; Søreide, Kjetil (2015). Cellular metabolism in colorectal carcinogenesis: Influence of lifestyle, gut microbiome and metabolic pathways.. (external link)
• Søreide, Kjetil; Thorsen, Kenneth; Søreide, Jon Arne (2014). Strategies to improve the outcome of emergency surgery for perforated peptic ulcer. (external link)
• Watson, Martin Matthew Christian; Berg, Marianne; Søreide, Kjetil (2014). Prevalence and implications of elevated microsatellite alterations at selected tetranucleotides in cancer. (external link)
• Lea, Dordi; Håland, Sven; Hagland, Hanne et al. (2014). Accuracy of TNM staging in colorectal cancer: A review of current culprits, the modern role of morphology and stepping-stones for improvements in the molecular era. (external link)
• Søreide, Kjetil (2014). Clinical and translational aspects of hypothermia in major trauma patients: From pathophysiology to prevention, prognosis and potential preservation. (external link)
• Hagland, Hanne; Berg, Marianne; Jolma, Ingunn Westvik et al. (2013). Molecular Pathways and Cellular Metabolism in Colorectal Cancer. (external link)
• Thorsen, Kenneth; Søreide, Jon Arne; Søreide, Kjetil (2013). Scoring systems for outcome prediction in patients with perforated peptic ulcer. (external link)
• Søreide, Kjetil; Alderson, Derek; Bergenfelz, Anders et al. (2013). Strategies to improve clinical research in surgery through international collaboration. (external link)
• Veen, Torhild; Nedrebø, Bjørn Steinar Olden; Stormark, Kjartan et al. (2013). Qualitative and quantitative issues of lymph nodes as prognostic factor in colon cancer. (external link)
• Søreide, Kjetil (2012). The Epidemiology of Injury in Bungee Jumping, BASE Jumping, and Skydiving. (external link)
• Kristiansen, Thomas; Søreide, Kjetil; Ringdal, Kjetil G. et al. (2012). Trauma systems and early management of severe injuries in Scandinavia: review and current status. (external link)
• Søreide, Kjetil; Kørner, Hartwig; Søreide, Jon Arne (2011). Diagnostic accuracy and receiver-operating characteristics curve analysis in surgical research and decision making. (external link)
• Rushfeldt, Christian; Sveinbjørnsson, Baldur; Søreide, Kjetil et al. (2011). Risk of anastomotic leakage with use of NSAIDs after gastrointestinal surgery. (external link)
• Thorsen, Kenneth; Ringdal, Kjetil G.; Strand, Kristian et al. (2011). Clinical and cellular effects of hypothermia, acidosis and coagulopathy in major injury. (external link)
• Berg, Marianne; Søreide, Kjetil (2011). Genetic and Epigenetic Traits as Biomarkers in Colorectal Cancer. (external link)
• Kristiansen, Thomas; Søreide, Kjetil; Ringdal, Kjetil G. et al. (2010). Trauma systems and early management of severe injuries in Scandinavia: Review of the current state. (external link)
• Rushfeldt, Christian; Søreide, Kjetil (2010). Kirurgisk behandling av pilonidal sykdom. (external link)
• Søreide, Kjetil; Nedrebø, Bjørn Gunnar; Reite, Andreas et al. (2009). Endoscopy, morphology, morphometry and molecular markers: predicting cancer risk in colorectal adenoma. (external link)
• Søreide, Kjetil; Nedrebø, Bjørn Gunnar; Knapp, Jens-Christian et al. (2009). Evolving molecular classification by genomic and proteomic biomarkers in colorectal cancer: Potential implications for the surgical oncologist. (external link)

Reader opinion piece

• Kanani, Arezo; Søreide, Kjetil (2025). Total neoadjuvant therapy with immunotherapy in locally advanced rectal cancer. (external link)
• Søreide, Kjetil (2025). Measuring the quality of surgery: should textbook outcomes be an off-the-shelf or a bespoke metric?. (external link)
• Søreide, Kjetil; Stättner, Stefan; Hallet, Julie (2024). Role of Laparoscopy in Small-Bowel Neuroendocrine Tumors – the Jury is Still Out. (external link)
• Søreide, Kjetil; Skjold-Ødegaard, Benedicte; Thorsen, Kenneth et al. (2021). Adhesions after open and laparoscopic abdominal surgery. (external link)
• Tabiri, Stephen; Kamarajah, Sivesh K.; Nepogodiev, Dmitri et al. (2021). Impact of Bacillus Calmette-Gue´rin (BCG) vaccination on postoperative mortality in patients with perioperative SARS-CoV-2 infection. (external link)
• Cambridge, William A.; Fairfield, Cameron; Powell, James J. et al. (2021). Response to the Comment on "meta-analysis and Meta-regression of Survival after Liver Transplantation for Unresectable Perihilar Cholangiocarcinoma". (external link)
• Søreide, Kjetil (2020). Regionalization of Pancreatectomy for Pancreatic Cancer. (external link)
• Søreide, Kjetil (2019). Emergency general surgery - is there any value in a '100 most cited' list?. (external link)
• Søreide, Kjetil; Nymo, Linn Såve; Lassen, Kristoffer (2019). Centralization of Pancreatic Surgery in Europe: an Update. (external link)
• Søreide, Kjetil (2018). Damage to the Gastrointestinal Tract From Nonsteroidal Anti-Inflammatory Drugs: What About Perforations and the Healing Intestine?. (external link)
• Søreide, Kjetil (2018). Assessing Surgeons' Technical Performance and Effect on Outcomes: Still Early Days. (external link)
• Søreide, Kjetil; Vetrhus, Morten; Weber, Clemens (2017). Etikk og estetikk ved prehospital torakotomi. (external link)
• Narvestad, Jon; Søreide, Kjetil (2015). Routine whole-body computed tomography in major trauma resuscitation: From "donut of death" to "do not without"?. (external link)
• Søreide, Kjetil (2015). Sepsis drives the cost in perforated peptic ulcer. (external link)
• Søreide, Kjetil (2015). Enhanced recovery in emergency surgery: Validity and generalizability of a randomized trial. (external link)
• Søreide, Kjetil; Ogino, Shuji (2012). Microsatellite instability and retrieval of lymph nodes in stage III colon cancer: harbinger or hermit?. (external link)
• Søreide, Kjetil (2011). Snapshot Quiz 11/04 (Br J Surg 2011; 98: 865, 888). (external link)
• Søreide, Kjetil (2011). Lymph Node Evaluation for Colon Cancer. (external link)
• Søreide, Kjetil; Nedrebø, Bjørn Gunnar; Søreide, Jon Arne et al. (2010). Association With a High Number of Lymph Nodes and Microsatellite Instability in Colorectal Cancer. (external link)
• Søreide, Kjetil (2010). Epidemiology of Trauma Deaths: Location, Location, Location!. (external link)
• Rushfeldt, Christian; Søreide, Kjetil (2010). C. Rushfeldt & K. Søreide svarer. (external link)
• Søreide, Kjetil; Reite, Andreas (2009). Untitled. (external link)
• Søreide, Kjetil (2009). Sensitivity and specificity in diagnostic accuracy: ROC solid or lost in translation?. (external link)
• Krüger, Andreas J.; Søreide, Kjetil (2008). Trimodal temporal distribution of fatal trauma - Fact or fiction?. (external link)

Editorial

• Søreide, Kjetil (2025). Patient-derived organoids from EUS-guided biopsies in pancreatic cancer: moving the needle for precision medicine. (external link)
• Søreide, Kjetil; Larsson, Patrik; Pandanaboyana, Sanjay (2024). Surgical Complications After Neoadjuvant Treatment for Borderline Resectable Pancreatic Cancer: From Benchmarks to Randomized Clinical Trials. (external link)
• Søreide, Kjetil; Siriwardena, Ajith K.; Frigerio, Isabella et al. (2024). Building the next generation of HPB surgeons: E-AHPBA Early Career Group, Online Academy, Mentorship Program, and Fellowships. (external link)
• Søreide, Kjetil; Sparrelid, Ernesto (2024). Defining what is left in a left-sided pancreatectomy. (external link)
• Søreide, Kjetil; Barreto, S. George; Pandanaboyana, Sanjay (2024). Severe acute pancreatitis. (external link)
• Søreide, Kjetil; Kok, Niels F.M. (2024). Curative-intent ablation margins (A0) for colorectal liver metastasis: more burning questions. (external link)
• Hallet, Julie; Søreide, Kjetil (2024). Neoadjuvant therapy with peptide receptor radionuclide therapy for pancreatic neuroendocrine tumours. (external link)
• Søreide, Kjetil (2024). Major Hepatectomy for Perihilar Cholangiocarcinoma: Taking Sides. (external link)
• Larsson, Patrik; Søreide, Kjetil (2024). Surgery for oligometastatic pancreatic cancer: next frontier?. (external link)
• Søreide, Kjetil (2023). Burgeoning rise in intraductal papillary mucinous neoplasia (IMPN)–a blessing in disguise. (external link)
• Søreide, Kjetil (2023). Liver transplantation for non-resectable colorectal liver metastases: the thin red line. (external link)
• Søreide, Kjetil (2022). Surgical exploration with non-resection in the setting of resectable, borderline and locally advanced pancreatic cancer. (external link)
• Søreide, Kjetil (2021). Medical students in the operating room: A two-way street for teaching and learning. (external link)
• Skjold-Ødegaard, Benedicte; Søreide, Kjetil (2020). Competency-based surgical training and entrusted professional activities– perfect match or a Procrustean bed?. (external link)
• Skjold-Ødegaard, Benedicte; Søreide, Kjetil (2020). Standardization in surgery: friend or foe?. (external link)
• Torén, William; Ansari, Daniel; Søreide, Kjetil et al. (2020). Re-resection for incidentally detected gallbladder cancer: Weighing in on the options. (external link)
• Larsen, Johannes Wiik; Søreide, Kjetil (2019). The worldwide variation in epidemiology of pancreatic injuries. (external link)
• Søreide, Kjetil (2018). Sweet Predictions Speak Volumes for Early Detection of Pancreatic Cancer. (external link)
• Søreide, Kjetil (2018). Pylorusstenose hos spedbarn. (external link)
• Søreide, Kjetil; Harrison, Ewen M.; Wigmore, Stephen J. (2018). Research gaps and unanswered questions in gallbladder cancer. (external link)
• Søreide, Kjetil (2018). Modellsykdom for målrettet kreftbehandling. (external link)
• Søreide, Kjetil; Sund, Malin (2017). Translational research in surgical oncology. (external link)
• Søreide, Kjetil (2017). Task-Shifting in Surveillance after Surgery for Colorectal Cancer: Addressing the Right Question?. (external link)
• Søreide, Kjetil (2017). Gallstone Disease and Cancer Risk: Finding the Bug in the System. (external link)
• Veen, Torhild; Søreide, Kjetil (2017). Can molecular biomarkers replace a clinical risk score for resectable colorectal liver metastasis?. (external link)
• Søreide, Kjetil; Story, D; Walder, Bernard (2016). Perioperative medicine and mortality after elective and emergency surgery.. (external link)
• Søreide, Kjetil (2016). Resection of asymptomatic primary tumour in unresectable stage IV colorectal cancer: time to move on from propensity matched scores to randomized controlled trials. (external link)
• Søreide, Kjetil; Wijnhoven, Bas P.L. (2016). Surgery for an ageing population.. (external link)
• Søreide, Kjetil (2015). The research conundrum of acute appendicitis.. (external link)
• Søreide, Kjetil (2015). Pancreas injury: the good, the bad and the ugly. (external link)
• Søreide, Kjetil (2015). Emergency surgery over 111 years: are we still at a crossroads or ready for emergency surgery 2.0?. (external link)
• Søreide, Kjetil (2015). Blood transfusion in liver surgery for colorectal metastasis: Time for triggers and trials. (external link)
• Søreide, Kjetil (2015). Service as joint editor-in-chief for 11 years comes to an end: adieu, godspeed and auf wiedersehn!. (external link)
• Søreide, Kjetil (2015). Editorial: facts, figures and the future. (external link)
• Bergenfelz, Anders; Søreide, Kjetil (2014). Improving outcomes in emergency surgery. (external link)
• Søreide, Kjetil; Narvestad, Jon (2014). Computed tomography to detect life-threatening injuries in trauma: Can we (and should we) add in patients' preferences?. (external link)
• Søreide, Kjetil; Sandvik, Oddvar Mathias; Søreide, Jon Arne (2014). KRAS mutation in patients undergoing hepatic resection for colorectal liver metastasis: A biomarker of cancer biology or a byproduct of patient selection?. (external link)
• Søreide, Kjetil (2013). Emergency management of acute obstructed left-sided colon cancer: loops, stents or tubes?. (external link)
• Søreide, Kjetil (2012). Strengthening the trauma chain of survival. (external link)
• Søreide, Kjetil (2012). Strengthening the trauma chain of survival. (external link)
• Søreide, Kjetil (2011). The role of high-mobility group box-1 (HMGB-1) in the management of suspected acute appendicitis: useful diagnostic biomarker or just another blind alley?. (external link)
• Berg, Marianne; Søreide, Kjetil (2011). PREVENTION Will an aspirin a day keep the colorectal cancer away?. (external link)
• Lossius, Hans Morten; Søreide, Kjetil (2011). Open access publishing: a girder in the success of the Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. (external link)
• Søreide, Kjetil (2009). Epidemiology of major trauma. (external link)
• Søreide, Kjetil; Lossius, Hans Morten; Lossius, HM (2009). A year of contemplation: looking back and moving forward. (external link)
• Glomsaker, Tom B.; Søreide, Kjetil (2009). Surgical training and working time restriction. (external link)
• Søreide, Kjetil (2009). Trauma and the acute care surgery model - should it embrace or replace general surgery?. (external link)
• Ringdal, Kjetil G.; Lossius, Hans Morten; Søreide, Kjetil (2009). "Getting your message through" an editorial guide for meeting publication standards. (external link)
• Søreide, Kjetil (2007). Molecular testing for microsatellite instability and DNA mismatch repair defects in hereditary and sporadic colorectal cancers - Ready for prime time?. (external link)

Errata

• Kanani, Arezo; Veen, Torhild; Lea, Dordi et al. (2025). Correction to: Neoadjuvant Immunotherapy Followed by Surgery Compared with Upfront Surgery Alone in Operable Colon Cancer with Deficient Mismatch Repair: Modeling Oncological Outcomes and Numbers Needed to Treat (Annals of Surgical Oncology, (2024), 10.1245/s10434-024-16755-y). (external link)
• Thunnissen, Floris M.; Comes, Daan J.; Latenstein, Carmen S.S. et al. (2023). Corrigendum to ‘A mixed-methods study to define Textbook Outcome for the treatment of patients with uncomplicated symptomatic gallstone disease with hospital variation analyses in Dutch trial data’ [Volume 25, Issue 9, September 2023, Pages 1000–1010] (HPB (2023) 25(9) (1000–1010), (S1365182X23001557), (10.1016/j.hpb.2023.05.005)). (external link)
• Ceresoli, Marco; Pisano, Michele; Abu-Zidan, Fikri et al. (2022). Correction: Minimally invasive surgery in emergency surgery: a WSES survey (World Journal of Emergency Surgery, (2022), 17, 1, (18), 10.1186/s13017-022-00419-x). (external link)
• Alhourani, Abdelnour; Tidwell, Tia; Bokil, Ansooya Avinash et al. (2022). Author Correction: Metformin treatment response is dependent on glucose growth conditions and metabolic phenotype in colorectal cancer cells (Scientific Reports, (2021), 11, 1, (10487), 10.1038/s41598-021-89861-6). (external link)
• Sartelli, Massimo; Weber, DG; Ruppe, E et al. (2017). Erratum: Antimicrobials: A global alliance for optimizing their rational use in intra-abdominal infections (AGORA). [World J Emerg Surg. 11, (2016) (33)] DOI: 10.1186/s13017-016-0089-y. (external link)
• Sartelli, Massimo; Chichom-Mefire, A; Labricciosa, FM et al. (2017). Erratum: The management of intra-abdominal infections from a global perspective: 2017 WSES guidelines for management of intra-abdominal infections. [World J Emerg Surg. 12, (2017) (29)] DOI: 10.1186/s13017-017-0141-6. (external link)
• Bhangu, Aneel; Søreide, Kjetil; Saverio, Salomone Di et al. (2017). Erratum: Acute appendicitis: modern understanding of pathogenesis, diagnosis, and management (The Lancet (2015) 386(10000) (1278–1287) (S0140673615002755) (10.1016/S0140-6736(15)00275-5)). (external link)

Article in business/trade/industry journal

• Siriwardena, Ajith K.; Serrablo, Alejandro; Fretland, Åsmund Avdem et al. (2023). The multi-societal European consensus on the terminology, diagnosis and management of patients with synchronous colorectal cancer and liver metastases: an E-AHPBA consensus in partnership with ESSO, ESCP, ESGAR, and CIRSE. (external link)
• Siriwardena, Ajith K.; Serrablo, Alejandro; Fretland, Åsmund Avdem et al. (2023). Multisocietal European consensus on the terminology, diagnosis, and management of patients with synchronous colorectal cancer and liver metastases: an E-AHPBA consensus in partnership with ESSO, ESCP, ESGAR, and CIRSE. (external link)

Academic chapter/article/Conference paper

• Watson, Martin Matthew Christian; Giezen, Mark van der; Søreide, Kjetil (2023). Gut microbiome influence on human epigenetics, health, and sisease. (external link)
• Roalsø, Marcus Thomas Thor; Hald, Øyvind; Ansari, Daniel et al. (2021). The Role of Epigenetics in Pancreatic Ductal Adenocarcinoma. (external link)
• Roalsø, Marcus Thomas Thor; Søreide, Kjetil (2021). TNM Staging for Pancreatic Adenocarcinoma. (external link)

Feature article

• Kazaryan, Airazat M.; Eftang, Lars Lohne; Ødegaard, Pål et al. (2022). Appendisittbehandlingen bør standardiseres. (external link)
• Søreide, Kjetil (2016). The SSO/ESSO International Career Development Exchange Program: Experience from MD Anderson Cancer Center and Massachusetts General Hospital. (external link)

Academic lecture

• Andreassen, Joakim Stray; Werner, David Andreas Thomas; Thorsen, Kenneth et al. (2022). The effects of reduced clinical activity on mortality in moderate and severe traumatic brain injury – an observational cohort study. (external link)
• Hagland, Hanne Røland; Søreide, Kjetil; Lea, Dordi et al. (2017). Correlation of circulating T-cells in pre-operative blood to intratumoral density and location of CD3+ and CD8+ T-cells in colorectal cancer: a potential for an immunoscore by “liquid biopsy”?. (external link)

Non-fiction book

• Søreide, Kjetil; Stättner, Stefan (2021). Textbook of Pancreatic Cancer. (external link)

Poster

• Kørner, Hartwig; Guren, Marianne; Søreide, Jon Arne et al. (2019). Non-curative treatment of patients with colorectal cancer – a national cohort study. (external link)
• Oltedal, Satu; Kørner, Hartwig; Aasprong, Ole Gunnar et al. (2017). The Prognostic Relevance of Sentinel Lymph Node Metastases Assessed by PHGR1 mRNA Quantitation in Stage I-III Colon Cancer. (external link)

Popular scientific article

• Søreide, Kjetil (2012). EGFR and downstream genetic alterations in KRAS/BRAF and PI3K/AKT pathways in colorectal cancer: implications for targeted therapy. (external link)

Textbook

• Søreide, Kjetil (2012). The Epidemiology of Injury in Bungee Jumping, BASE Jumping, and Skydiving. (external link)

See a complete overview of publications in Cristin.