Publications
Academic article
- Øyvind Ulvik; Line Christel Loe Vigrestad; Dan Helgø et al. (2026). Paediatric stone treatment in the Nordic countries – a multicentre study from the Scandinavian Collaboration Group for Urinary Stones. (external link)
- Anette Nyheim; Øyvind Ulvik; Christian Beisland et al. (2026). Outcomes and management of de novo ureteral strictures following ureteroscopy: A retrospective observational study. (external link)
- Mathias S. Æsøy; Christian Beisland; Øyvind Ulvik (2026). Power is not performance: Analysis of laser-use metrics from a randomised clinical trial comparing low- and high-power ureteroscopic lithotripsy. (external link)
- Orlane Figaroa; Hugo Schuil; Guido Kamphuis et al. (2025). Challenges in Follow-up After Kidney-sparing Surgery for Upper Tract Urothelial Carcinoma: Insights from a Delphi Consensus. (external link)
- Lazaros Tzelves; Bhaskar Somani; Steffi Kar Kei Yuen et al. (2025). Ureteroscopy for stone disease in the elderly (≥ 80 years): Outcomes of a multicentre study from YAU and EAU endourology groups. (external link)
- Patrick Juliebø-Jones; Peder Gjengstø; Mathias S. Æsøy et al. (2025). National trends in hospital encounters, outpatient consultations and surgeries for urolithiasis in Norway. (external link)
- Mathias S. Æsøy; Patrick Juliebø-Jones; Peder Gjengstø et al. (2025). Watt's the difference? A randomised trial of high- vs low-power ureteroscopic thulium fibre laser lithotripsy. (external link)
- Mathias S. Æsøy; Patrick Juliebø-Jones; Christian Beisland et al. (2024). Temperature Measurements During Flexible Ureteroscopic Laser Lithotripsy: A Prospective Clinical Trial. (external link)
- Øyvind Ulvik; Mathias S⊘rstrand Æs⊘y; Charles Patrick W. Jones et al. (2023). Editorial Comment: Thulium fibre laser versus Holmium:YAG for ureteroscopic lithotripsy: outcomes from a prospective randomised clinical trial. (external link)
- Øyvind Ulvik; Tore Wentzel-Larsen (2013). A novel method to measure the mechanical pushing and pulling forces during ureteroscopy in a normal clinical setting. (external link)
- Øyvind Ulvik; Mathias S. Æsøy; Charles Patrick Warburton Jones et al. (2022). Thulium Fibre Laser versus Holmium:YAG for Ureteroscopic Lithotripsy: Outcomes from a Prospective Randomised Clinical Trial. (external link)
- Patrick Juliebø-Jones; Christian Beisland; Peder Gjengstø et al. (2023). Ureteroscopy during pregnancy: Outcomes and lessons learned over 4 decades at a tertiary center in Norway. (external link)
- Bjarte Almås; Ole Johan Halvorsen; Peder Gjengstø et al. (2016). Grading of urothelial carcinoma of the upper urinary tract according to the World Health Organization/International Society of Urological Pathology classification from 2004 is a valuable tool when considering whether a patient is suitable for endoscopic treatment. (external link)
- Charles Patrick Warburton Jones; Mathias S. Æsøy; Peder Gjengstø et al. (2022). Ureteroscopy for stone disease in the paediatric population: lessons learned and outcomes in a Nordic setting. (external link)
- Øyvind Ulvik; Jill-Randi Harneshaug; Peder Gjengstø (2021). What Do We Mean by "Stone Free," and How Accurate Are Urologists in Predicting Stone-Free Status Following Ureteroscopy?. (external link)
- Øyvind Ulvik; Jill-Randi Harneshaug; Peder Gjengstø (2021). Ureteral Strictures following Ureteroscopic Stone Treatment. (external link)
- Marie Lien; Mathias S. Æsøy; Karin Margrethe Hjelle et al. (2024). Robotic-assisted laparoscopic pyeloplasty for the treatment of ureteropelvic junction obstruction – How should success be determined?. (external link)
- Charles Patrick W. Jones; Vaki Antoniou; Christian Arvei Moen et al. (2023). Ureteroscopy in Patients with Urinary Diversion: Outcomes and Lessons Learned from Two European Centres. (external link)
- Øyvind Ulvik; Nils Magnus Ulvik (2013). Diversity in urologists' personal preferences in the ureteroscopic management of ureteral calculi in Norway. (external link)
- Charles Patrick W. Jones; Bhaskar K. Somani; Lazaros Tzelves et al. (2023). Device Failure and Adverse Events Related to Single-use and Reusable Flexible Ureteroscopes: Findings and New Insights From an 11-Year Analysis of the Manufacturer and User Facility Device Experience Database. (external link)
- Charles Patrick Warburton Jones; Øyvind Ulvik; Christian Beisland et al. (2023). Paediatric Ureteroscopy (P-URS) reporting checklist: a new tool to aid studies report the essential items on paediatric ureteroscopy for stone disease. (external link)
- Patrick Juliebø-Jones; Lazaros Tzelves; Øyvind Ulvik et al. (2024). Mortality and burden of disease associated with kidney stone disease in children and young persons (<20 years): Trends in Europe between 1990–2019 according to the Global Burden of Disease database. (external link)
- Mathias S. Æsøy; Charles Patrick Warburton Jones; Christian Beisland et al. (2022). Temperature profiles during ureteroscopy with thulium fiber laser and holmium:YAG laser: Findings from a pre-clinical study. (external link)
- Patrick Juliebø-Jones; Bhaskar K. Somani; Ioannis Mykoniatis et al. (2024). Adverse events related to accessory devices used during ureteroscopy: Findings from a 10-year analysis of the Manufacturer and User Facility Device Experience (MAUDE) database. (external link)
- Øyvind Ulvik; Ravi Rawal; Peder Gjengstø (2021). ‘Case of the month’ from Haukeland University Hospital, Bergen, Norway: a 2-year-old boy with acute renal failure and anuria. (external link)
- Patrick Juliebø-Jones; Vineet Gauhar; Smita De et al. (2025). Ureteroscopy for Urolithiasis in Pregnancy: Outcomes of a Multicentre Study on Behalf of the European Association of Urology Section of Endourology. (external link)
- Patrick Juliebø-Jones; Michelle J. Semins; Christian Seitz et al. (2024). Management of Kidney Stones in Pregnancy: A Worldwide Survey of Practice Patterns. (external link)
- Øyvind Ulvik; Tore Wentzel-Larsen; Nils Magnus Ulvik (2013). A Safety Guidewire Influences the Pushing and Pulling Forces Needed to Move the Ureteroscope in the Ureter: A Clinical Randomized, Crossover Study. (external link)
- Stefano Moretto; A. Saita; C.M. Scoffone et al. (2024). An international delphi survey and consensus meeting to define the risk factors for ureteral stricture after endoscopic treatment for urolithiasis. (external link)
- Simone J.M. Stoots; Bhaskar K. Somani; Otas Durutovic et al. (2025). Kidney stone analysis: an EAU section of urolithiasis (EULIS) survey on current practices and perspectives worldwide. (external link)
- Patrick Juliebø-Jones; Christian Beisland; Peder Gjengstø et al. (2023). Ureteroscopy during pregnancy under local anesthesia and light sedation: Technique and video. (external link)
- Patrick Juliebø-Jones; Mathias S. Æsøy; Christian Beisland et al. (2024). Adverse events related to laser fibers and laser machines during ureteroscopy and stone lithotripsy: Insights from an updated 10-year analysis of the US MAUDE database. (external link)
- Gernot Ortner; Bhaskar Kumar Somani; Selcuk Güven et al. (2023). Experts’ recommendations in laser use for the treatment of upper tract urothelial carcinoma: a comprehensive guide by the European Section of Uro-Technology (ESUT) and Training Research in Urological Surgery and Technology (T.R.U.S.T.) group. (external link)
- Patrick Jones; Christian Arvei Moen; Julie Nøss Haugland et al. (2023). Ureteroscopy for Stone Disease in Extremely Elderly Patients (≥85 Years): Outcomes and Lessons Learned. (external link)
- Øyvind Ulvik; K Rennesund; Peder Gjengstø et al. (2013). Ureteroscopy with and Without Safety Guide Wire: Should the Safety Wire Still be Mandatory?. (external link)
- Gernot Ortner; Selcuk Güven; Bhaskar Kumar Somani et al. (2024). Experts’ recommendations in laser use for the treatment of bladder cancer: a comprehensive guide by the European Section of Uro-Technology (ESUT) and Training and Research in Urological Surgery and Technology (TRUST)-Group. (external link)
Media interview
Conference lecture
- Yngve Nygård; Ravi Rawal; Gunnar Uwe Walter Ebner et al. (2012). Radikale prostatektomier ved Haukeland universitetssjukehus 2010-2012. (external link)
- Ravi Rawal; Yngve Nygård; Gunnar Uwe Walter Ebner et al. (2012). Læringskurven for RALP ved Haukeland universitetssjukehus 2010-2012. (external link)
- Yngve Nygård; Ravi Rawal; Gunnar Uwe Walter Ebner et al. (2012). Lymfekjerteltoilette (PLND) ved radikale prostatektomier ved Haukeland universitetssjukehus 2010-2012. (external link)
Academic literature review
- Charles Patrick W. Jones; Bhaskar K. Somani; Peder Gjengstø et al. (2023). Holmium and Thulium Fiber Laser Safety in Endourological Practice: What Does the Clinician Need to Know?. (external link)
- Anh Khoi Vo; Bhaskar K. Somani; Øyvind Ulvik et al. (2024). Measuring quality of life in patients with kidney stone disease: Is it the future in endourology?. (external link)
- Søren Kissow Lildal; Helene Jung; Øyvind Ulvik et al. (2020). Consultation on kidney stones, Copenhagen 2019: aspects of intracorporeal lithotripsy in flexible ureterorenoscopy. (external link)
- Charles Patrick W. Jones; Etienne Xavier Keller; Lazaros Tzelves et al. (2023). Paediatric kidney stone surgery: state-of-the-art review. (external link)
- S. Moretto; A. Saita; C.M. Scoffone et al. (2024). Ureteral stricture rate after endoscopic treatments for urolithiasis and related risk factors: systematic review and meta-analysis. (external link)
- Patrick Jones; Christian Beisland; Øyvind Ulvik (2021). Current status of thulium fibre laser lithotripsy: an up-to-date review. (external link)
- Patrick Juliebø-Jones; Eugenio Ventimiglia; Bhaskar K. Somani et al. (2023). Single use flexible ureteroscopes: Current status and future directions. (external link)
- Patrick Juliebø-Jones; Etienne Xavier Keller; Julie Nøss Haugland et al. (2022). Advances in Ureteroscopy: New technologies and current innovations in the era of Tailored Endourological Stone Treatment (TEST). (external link)
- Charles Patrick Warburton Jones; Bhaskar K. Somani; Stephen Baug et al. (2022). Management of kidney stone disease in pregnancy: A practical and evidence-based approach. (external link)
- Charles Patrick Warburton Jones; Amelia Pietropaolo; Mathias S. Æsøy et al. (2021). Endourological management of encrusted ureteral stents: an up-to-date guide and treatment algorithm on behalf of the European Association of Urology Young Academic Urology Urolithiasis Group. (external link)
Letter to the editor
- Øyvind Ulvik; Mathias Sørstrand Æsøy; Patrick Juliebø-Jones et al. (2022). Reply to Hyung Joon Kim and Khurshid R. Ghani's Letter to the Editor re: Øyvind Ulvik, Mathias Sørstrand Æsøy, Patrick Juliebø-Jones, Peder Gjengstø, Christian Beisland. Thulium Fibre Laser Versus Holmium:YAG for Ureteroscopic Lithotripsy: Outcomes from a Prospective Randomised Clinical Trial. Eur Urol. 2022;82:73–9. (external link)
- Patrick Juliebø-Jones; Øyvind Ulvik; Christian Beisland et al. (2023). Adult Ureteroscopy (A-URS) Checklist: A New Tool To Standardise Reporting in Endourology. (external link)
- Øyvind Ulvik; Mathias Sørstrand Æsøy; Patrick Juliebø-Jones et al. (2022). Reply to Frederic Panthier, Alba Sierra, and Olivier Traxer's Letter to the Editor re: Øyvind Ulvik, Mathias Sørstrand Æsøy, Patrick Juliebø-Jones, Peder Gjengstø, Christian Beisland. Thulium Fibre Laser Versus Holmium:YAG for Ureteroscopic Lithotripsy: Outcomes from a Prospective Randomised Clinical Trial. Eur Urol. 2022;82:73–9. (external link)
- Øyvind Ulvik; Mathias Sørstrand Æsøy; Patrick Juliebø-Jones et al. (2022). Reply to Alan J. Yaghoubian, Jonathan A. Khusid, and Mantu Gupta's Letter to the Editor re: Øyvind Ulvik, Mathias Sørstrand Æsøy, Patrick Juliebø-Jones, Peder Gjengstø, Christian Beisland. Thulium Fibre Laser Versus Holmium:YAG for Ureteroscopic Lithotripsy: Outcomes from a Prospective Randomised Clinical Trial. Eur Urol. 2022;82:73–9. (external link)
- Charles Patrick W. Jones; Øyvind Ulvik; Andreas Skolarikos et al. (2023). Traffic light system for simplified decision-making for stent insertion and removal at the time of ureteroscopy. (external link)
- Øyvind Ulvik; Mathias Sørstrand Æsøy; Patrick Juliebø-Jones et al. (2022). Reply to Jinze Li, Yin Huang, Dehong Cao, and Qiang Wei's Letter to the Editor re: Øyvind Ulvik, Mathias Sørstrand Æsøy, Patrick Juliebø-Jones, Peder Gjengstø, Christian Beisland. Thulium Fibre Laser Versus Holmium:YAG for Ureteroscopic Lithotripsy: Outcomes from a Prospective Randomised Clinical Trial. Eur Urol. 2022;82:73–79. (external link)
- Patrick Juliebø-Jones; Christian Beisland; Peder Gjengstø et al. (2022). Ureteroscopy in pregnancy can be a preferred option and not just a last resort. (external link)
Doctoral thesis (PhD)
- Øyvind Ulvik (2014). Ureteroscopy with and without a safety guide wire in the treatment of ureteral calculi. (external link)
- Øyvind Ulvik (2014). Ureteroscopy with and without a safety guide wire in the treatment of ureteral calculi. An assessment of personal preferences, mechanical forces and clinical outcomes. (external link)