Conference poster

• Petrine Veierød Solli; Praveen Muralitharan; Sivert H. Veseth et al. (2025). A randomized controlled trial (RCT), adding inspiratory muscle training to standard treatment for exercise-induced laryngeal obstruction (EILO). (external link)
• Maria Vollsæter; Hege Synnøve Havstad Clemm; John-Helge Heimdal et al. (2014). Spirometry- a tool for diagnosing exercise induced laryngeal obstruction (EILO)?. (external link)
• Astrid Sandnes; Tiina Maarit Andersen; Maria Vollsæter et al. (2015). Lung function and respiratory muscle strength in Amyotrophic Lateral Sclerosis.. (external link)
• Tiina Maarit Andersen; Astrid Sandnes; Maria Vollsæter et al. (2015). Measurement of vital capacity in Amyotrophic Lateral Sclerosis – forced and slowly performed.. (external link)
• Tiina Maarit Andersen; Astrid Sandnes; Anne Kristine Brekka et al. (2015). Laryngeal response patterns to mechanical insufflation-exsufflation in amyotrophic lateral sclerosis.. (external link)
• Anne Kristine Brekka; George Ntoumenopoulos; Ola Drange Røksund et al. (2023). Strupens responser under non-invasiv ventilasjonsstøtte hos friske frivillige. (external link)
• Tiina Maarit Andersen; Astrid Sandnes; Anne Kristine Brekka et al. (2015). Hvordan reagerer strupen ved bruk av hostemaskin hos personer med amyotrofisk lateral sklerose?. (external link)
• Merete Salveson Engeseth; Hege Synnøve Havstad Clemm; Ola Drange Røksund et al. (2015). Better respiratory outcomes for extremely preterm born children.. (external link)
• Aase Johnsen Rogde; Haakon Kristian Kvidaland; Sverre Lehmann et al. (2025). Exercise-induced laryngeal obstruction in a hospital-based cohort with asthma. (external link)
• Tiina Andersen; Anne Kristine Brekka; Zoe Fretheim-Kelly et al. (2024). Upper airway and translaryngeal resistance during mechanical insufflation-exsufflation. (external link)
• Maria Vollsæter; Hege Synnøve Havstad Clemm; John-Helge Heimdal et al. (2014). Exercise Induced Inspiratory Stridor (EIIS) - A growing Challenge during Physical activity. (external link)
• Silje Dahl Benum; Kristina Anna Djupvik Aakvik; Cathrin Vano Mehl et al. (2024). Physical Activity in Adults Born Preterm with Very Low Birth Weight. (external link)
• Mette Engan; Merete Salveson Engeset; Ingvild Øvstebø Engesæter et al. (2020). Prevalence and consequences of left vocal cord paralysis in young adults born extremely premature with a history of neonatal patent ductus arteriosus surgery. (external link)
• Merete Salveson Engeseth; Ola Drange Røksund; Maria Vollsæter et al. (2016). Respiratory morbidity in extremely premature born children and later physical Activity.. (external link)
• Kristina Anna Djupvik Aakvik; Silje Dahl Benum; Cathrin Vano Mehl et al. (2025). Fysisk aktivitet målt med akselerometer hos voksne født for tidlig med svært lav fødselsvekt. (external link)
• Maria Vollsæter; Hege Synnøve Havstad Clemm; Einar Thorsen et al. (2014). Alveolar nitric oxide(NO)in children born extremely preterm (EP).. (external link)
• Carolina Campos; Ola Drange Røksund; Maria Vollsæter et al. (2014). Exercise induced inspiratory symptoms. (external link)
• Hege Synnøve Havstad Clemm; Maria Vollsæter; Magnus Hilland et al. (2014). Exercise induced laryngeal obstruction(EILO)diagnosed with laryngoscopy during rest or during exercise?. (external link)
• Hege Synnøve Havstad Clemm; Maria Vollsæter; Ola Drange Røksund et al. (2014). Exercise induced inspiratory stridor (EIIS) in athletes. (external link)
• Tiina Maarit Andersen; Astrid Sandnes; Anne Kristine Brekka et al. (2015). Laryngeal response patterns to mechanical assisted cough in Amyotrophic Lateral Sclerosis.. (external link)

Academic article

• Britt Engan; Mette Engan; Gottfried Greve et al. (2021). Vascular endothelial function assessed by flow-mediated vasodilatation in young adults born very preterm or with extremely low birthweight: A regional cohort study. (external link)
• Astrid Sandnes; Magnus Hilland; Maria Vollsæter et al. (2019). Severe exercise-induced laryngeal obstruction treated with supraglottoplasty. (external link)
• Hege Synnøve Havstad Clemm; Astrid Sandnes; Maria Vollsæter et al. (2018). The Heterogeneity of Exercise-induced Laryngeal Obstruction.. (external link)
• Silje Dahl Benum; Kristina Anna Djupvik Aakvik; Anna Perregaard Munch Jørgensen et al. (2024). Motor abilities in adults born with very low birthweight: A study of two birth cohorts from Finland and Norway. (external link)
• Merete Salveson Engeseth; Mette Engan; Hege Synnøve Havstad Clemm et al. (2020). Voice and Exercise Related Respiratory Symptoms in Extremely Preterm Born Children After Neonatal Patent Ductus Arteriosus. (external link)
• Brit Hov; Tiina Maarit Andersen; Michel Toussaint et al. (2024). Mechanically assisted cough strategies: user perspectives and cough flows in children with neurodisability. (external link)
• Tiina Maarit Andersen; Anne Kristine Brekka; Zoe Fretheim-Kelly et al. (2025). Upper Airway and Translaryngeal Resistance During Mechanical Insufflation-Exsufflation. (external link)
• Ida Jansrud; Thomas Halvorsen; Maria Vollsæter et al. (2022). Conundrums in the breathless athlete; exercise-induced laryngeal obstruction or asthma?. (external link)
• Anne Kristine Brekka; George Ntoumenopoulos; Ola Drange Røksund et al. (2024). Use of Laryngeal Ultrasound to Observe Laryngeal Movements During Noninvasive Ventilation in Healthy Volunteers. (external link)
• Petter Carlsen; Praveen Muralitharan; Hilde Fenne et al. (2024). Laryngeal response to high-intensity exercise in healthy athletes. (external link)
• Brit Hov; Tiina Maarit Andersen; Michel Toussaint et al. (2021). Prevalence of long-term mechanical insufflation-exsufflation in children with neurological conditions: a population-based study. (external link)
• Brit Hov; Tiina Maarit Andersen; Michel Toussaint et al. (2023). User-perceived impact of long-term mechanical assisted cough in paediatric neurodisability. (external link)
• Astrid Sandnes; Tiina Maarit Andersen; Hege Synnøve Havstad Clemm et al. (2019). Exercise-induced laryngeal obstruction in athletes treated with inspiratory muscle training. (external link)
• Hege Synnøve Havstad Clemm; Maria Vollsæter; Ola Drange Røksund et al. (2015). Adolescents who were born extremely preterm demonstrate modest decreases in exercise capacity. (external link)
• Astrid Sandnes; Tiina Maarit Andersen; Hege Synnøve Havstad Clemm et al. (2021). Clinical responses following inspiratory muscle training in exercise-induced laryngeal obstruction. (external link)
• Merete Benestad; Jorunn Drageset; Karl Ove Hufthammer et al. (2022). Long-term follow-up of self-reported mental health and health-related quality of life in adults born extremely preterm. (external link)
• Emma Elsa Carolina Satrell; Hege Synnøve Havstad Clemm; Ola Drange Røksund et al. (2021). Development of lung diffusion to adulthood following extremely preterm birth. (external link)
• Maria Vollsæter; Thomas Halvorsen; Trond Markestad et al. (2018). Renal function and blood pressure in 11 year old children born extremely preterm or small for gestational age. (external link)
• Tom Hemming Karlsen; Kristine Vreim; Ola Drange Røksund et al. (2024). A speech therapy treatment protocol for exercise induced laryngeal obstruction. (external link)
• Tiina Maarit Andersen; Astrid Sandnes; Ove Fondenes et al. (2018). Laryngeal responses to mechanically assisted cough in progressing amyotrophic lateral sclerosis. (external link)
• Liv-Jorunn Kolnes; Maria Vollsæter; Ola Drange Røksund et al. (2019). Physiotherapy improves symptoms of exercise-induced laryngeal obstruction in young elite athletes: A case series. (external link)
• Tonje Bårdsen; Ola Drange Røksund; Merete Benestad et al. (2022). Tracking of lung function from 10 to 35 years after being born extremely preterm or with extremely low birth weight. (external link)
• Zoe Fretheim-Kelly; Thomas Halvorsen; John-Helge Heimdal et al. (2019). Feasibility and tolerability of measuring translaryngeal pressure during exercise. (external link)
• Hege Synnøve Havstad Clemm; Maria Vollsæter; Ola Drange Røksund et al. (2014). Exercise capacity after extremely preterm birth: Development from adolescence to adulthood. (external link)
• Mette Engan; Maria Vollsæter; Knut Øymar et al. (2019). Comparison of physical activity and body composition in a cohort of children born extremely preterm or with extremely low birth weight to matched term-born controls: a follow-up study. (external link)
• Britt Engan; Tom Roar Omdal; Gottfried Greve et al. (2023). Myocardial function including estimates of myocardial work in young adults born very preterm or with extremely low birthweight - a cohort study. (external link)
• Kaia Skromme; Maria Vollsæter; Knut Øymar et al. (2018). Respiratory morbidity through the first decade of life in a national cohort of children born extremely preterm. (external link)
• Ola Drange Røksund; John-Helge Heimdal; Hege Synnøve Havstad Clemm et al. (2016). Exercise inducible laryngeal obstruction: diagnostics and management. (external link)
• Haakon Kristian Kvidaland; Hege Synnøve Havstad Clemm; Ola Drange Røksund et al. (2022). Is it feasible to perform a continuous laryngoscopy exercise test with a cold air inhalate? A case report. (external link)
• Merete Røineland Benestad; Jorunn Drageset; Hege Synnøve Havstad Clemm et al. (2021). Self-Reported Health in Adolescents With Exercise-Induced Laryngeal Obstruction; A Cross-Sectional Study. (external link)
• Tiina Maarit Andersen; Astrid Sandnes; Anne Kristine Brekka et al. (2016). Laryngeal response patterns influence the efficacy of mechanical assisted cough in amyotrophic lateral sclerosis. (external link)
• Tonje Bårdsen; Emma Satrell; Ola Drange Røksund et al. (2024). Lung function outcomes in adults born extremely preterm across three decades of advancing perinatal medicine. (external link)
• Zoe Fretheim-Kelly; Mette Engan; Hege Synnøve Havstad Clemm et al. (2022). Reliability of translaryngeal airway resistance measurements during maximal exercise. (external link)
• Lex W. Doyle; Sture Andersson; Andy Bush et al. (2019). Expiratory airflow in late adolescence and early adulthood in individuals born very preterm or with very low birthweight compared with controls born at term or with normal birthweight: a meta-analysis of individual participant data.. (external link)
• Anne Kristine Brekka; Maria Vollsæter; Zoe Fretheim-Kelly et al. (2025). Exploring upper airway and laryngeal resistance to noninvasive ventilation in healthy awake adults. (external link)
• Anne Lise Bjørke Monsen; Maria Vollsæter; Per Magne Ueland et al. (2016). Increased bronchial hyperresponsiveness and higher asymmetric dimethylarginine levels after fetal growth restriction. (external link)
• Paul Leong; Anne E. Vertigan; Mark Hew et al. (2023). Diagnosis of vocal cord dysfunction/inducible laryngeal obstruction: an International Delphi Consensus Study. (external link)
• Maria Vollsæter; Hege Synnøve Havstad Clemm; Emma Elsa Carolina Satrell et al. (2015). Adult respiratory outcomes of extreme preterm birth. A regional cohort study.. (external link)
• Ingvild Bruun Mikalsen; Thomas Halvorsen; Pétur Benedikt Juliusson et al. (2021). Early life growth and associations with lung function and bronchial hyperresponsiveness at 11-years of age. (external link)
• Silje Katrine Elgen Fevang; Ada Røiseland Madland; Irene Bircow Elgen et al. (2022). Symptoms and antecedents of autism in children born extremely premature: a national population-based study. (external link)
• Astrid Haugen Lie; Ingvild Grønnevik; Bente Frisk et al. (2021). Breathing patterns in people with exercise-induced laryngeal obstruction. (external link)
• Praveen Muralitharan; Petter Carlsen; Magnus Hilland et al. (2023). Use of inhaled ipratropium bromide to improve exercise-induced laryngeal obstruction cannot be recommended. (external link)
• Tiina Maarit Andersen; Thomas Halvorsen; Ove Fondenes et al. (2019). Larynx: The Complex Gateway to the Lungs. (external link)
• Mette Engan; Ida Jansrud; Marianne Bekken et al. (2021). Reliability of maximum oxygen uptake in cardiopulmonary exercise testing with continuous laryngoscopy. (external link)
• Åse Johnsen Rogde; Sverre Lehmann; Thomas Halvorsen et al. (2023). Prevalence and impact of exercise-induced laryngeal obstruction in asthma: a study protocol for a cross-sectional and longitudinal study. (external link)
• Silje Dahl Benum; Kristina Anna Djupvik Aakvik; Cathrin Vano Mehl et al. (2025). Device-measured physical activity in adults born preterm with very low birth weight and mediation by motor abilities. (external link)
• Åse Johnsen Rogde; Sverre Lehmann; Hege Synnøve Havstad Clemm et al. (2021). Inducible laryngeal obstruction in asthma. (external link)
• Stian Hammer; Michel Toussaint; Haakon Kristian Kvidaland et al. (2025). Physical Activity and Sedentary Behavior in Norwegian Boys With Duchenne Muscular Dystrophy: A Cross-Sectional Study. (external link)
• Merete Benestad; Jorunn Drageset; Maria Vollsæter et al. (2024). Health-related quality of life in two birth cohorts of extremely preterm born adults. (external link)
• Maria Vollsæter; Anett Skjoldmo; Ola Drange Røksund et al. (2021). Tailoring NIV by dynamic laryngoscopy in a child with spinal muscular atrophy type I. (external link)
• Kristine Marie Stangenes; Mari Hysing; Maria Vollsæter et al. (2025). Sleep problems from age two to five years and neurological outcome in children born extremely preterm: a cross-sectional study. (external link)
• Maria Vollsæter; Kaia Skromme; Emma Elsa Carolina Satrell et al. (2015). Children born preterm at the turn of the millennium had better lung function than children born similarly preterm in the early 1990s. (external link)
• Henriette Lahn-Johannessen Lillebøe; Merete Salveson Engeseth; Hege Synnøve Havstad Clemm et al. (2024). Expiratory airflow limitation in adults born extremely preterm: A systematic review and meta-analysis. (external link)
• Merete Benestad; Jorunn Drageset; Geir Egil Eide et al. (2022). Development of health-related quality of life and subjective health complaints in adults born extremely preterm: a longitudinal cohort study. (external link)
• Marianne Sentenac; Valerie Benhammou; Ulrika Aden et al. (2021). Maternal education and cognitive development in 15 European very-preterm birth cohorts from the RECAP Preterm platform. (external link)
• Mette Engan; Merete Salveson Engeset; Lorentz Sandvik et al. (2022). Left vocal cord paralysis, lung function and exercise capacity in young adults born extremely preterm with a history of neonatal patent ductus arteriosus surgery—A national cohort study. (external link)
• Maria Vollsæter; Ola Drange Røksund; Geir Egil Eide et al. (2013). Lung function after preterm birth: development from mid-childhood to adulthood. (external link)
• Mariann Bentsen; Emma Satrell; Hallvard Reigstad et al. (2017). Mid-childhood outcomes after pre-viable preterm premature rupture of membranes. (external link)
• Kristine Vreim; Tom Karlsen; Petter Carlsen et al. (2025). Speech therapy for exercise-induced laryngeal obstruction. (external link)
• Tiina Maarit Andersen; Ove Fondenes; Ola Drange Røksund et al. (2022). From bedside to bench - In vivo and in vitro evaluation of mechanically assisted cough treatment in a patient with bulbar Amyotrophic Lateral Sclerosis. (external link)
• Anne Kristine Brekka; Maria Vollsæter; George Ntoumenopoulos et al. (2022). Adjustments of non-invasive ventilation and mechanically assisted cough by combining ultrasound imaging of the larynx with transnasal fibre-optic laryngoscopy: A protocol for an experimental study. (external link)
• Zoe Fretheim-Kelly; Hege Synnøve Havstad Clemm; Ola Drange Røksund et al. (2023). Translaryngeal Resistance: A Measurement to Assist Decision Making in Upper Airway Pathology. (external link)
• Hege Synnøve Havstad Clemm; Ola Drange Røksund; Tiina Maarit Andersen et al. (2022). Exercise-induced Laryngeal Obstruction: Protocol for a Randomized Controlled Treatment Trial. (external link)
• Mette Engan; Merete Salveson Engeseth; Silje Katrine Elgen Fevang et al. (2020). Predicting physical activity in a national cohort of children born extremely preterm. (external link)

Academic literature review

• Tiina Maarit Andersen; Brit Hov; Thomas Halvorsen et al. (2021). Upper Airway Assessment and Responses During Mechanically Assisted Cough.. (external link)
• Stian Hammer; Michel Toussaint; Maria Vollsæter et al. (2022). Exercise Training in Duchenne Muscular Dystrophy: A Systematic Review and Meta-Analysis. (external link)
• Maria Vollsæter; Hilde Haraldsen Sveen; Petrine Veierød Solli et al. (2024). When Art Meets Medicine: Use of Flexible Laryngoscopy in Development of Singers’ Voices - A Scoping Review. (external link)
• Shannon J Simpson; Cassidy Du Berry; Denby J Evans et al. (2023). Unravelling the respiratory health path across the lifespan for survivors of preterm birth. (external link)
• Zoe Louise Fretheim-Kelly; Thomas Halvorsen; Hege Synnøve Havstad Clemm et al. (2019). Exercise induced laryngeal obstructions in humans and equines. A comparative review. (external link)
• Hege Synnøve Havstad Clemm; Merete Salveson Engeseth; Maria Vollsæter et al. (2018). Bronchial hyper-responsiveness after preterm birth. (external link)
• Maria Vollsæter; Trine Stensrud; Robert Maat et al. (2022). Exercise related respiratory problems in the young—Is it exercise-induced bronchoconstriction or laryngeal obstruction?. (external link)

Doctoral thesis (PhD)

• Tiina Maarit Andersen; Ola Drange Røksund; Thomas Halvorsen et al. (2018). Laryngeal response patterns during mechanically assisted cough in Amyotrophic Lateral Sclerosis. (external link)
• Maria Vollsæter; Thomas Halvorsen (2016). Long-term Respiratory Outcomes of Extreme Preterm Birth. A regional cohort study. (external link)

Conference lecture

• Kristina Anna Djupvik Aakvik; Silje Dahl Benum; Cathrin Vano Mehl et al. (2023). Physical activity in adults born preterm with very low birth weight and mediation by motor abilities. (external link)
• Merete Salveson Engeseth; Silje Maeland; Maria Vollsæter et al. (2018). Symptoms of vocal cord paresis among children born extremely premature with- or without a PDA ligation.. (external link)
• Ida Jansrud; Lars Peder Vatshelle Bovim; Maria Vollsæter et al. (2018). Is continuous laryngoscopy during cardiopulmonary exercise testing reliable for measuring maximum oxygen uptake?. (external link)
• Anne Kristine Brekka; Solfrid Indrekvam; Petrine Veierød Solli et al. (2024). Laryngeal observations during non-invasive ventilation titration in chronic obstructive pulmonary disease. (external link)
• Anne Kristine Brekka; Petrine Veierød Solli; Solfrid Indrekvam et al. (2025). Laryngeal ultrasound to observe laryngeal movements during non-invasive ventilation in COPD. (external link)
• Merete Salveson Engeseth; Mette Engan; Hege Synnøve Havstad Clemm et al. (2019). Respiratory- and voice symptoms among extremely preterm born children with prolonged ventilator dependency. A Norwegian national cohort study.. (external link)

Editorial/Leader article

• Tiina M. Andersen; Bebiana Conde; Maria Vollsæter (2025). Seeing in Synchrony: Toward Personalized Noninvasive Ventilation in Amyotrophic Lateral Sclerosis Through Dynamic Upper-Airway Visualization. (external link)
• Tiina Maarit Andersen; Maria Vollsæter (2022). Go With the Flow: Are We Cracking the Code? Respiratory Management of Bulbar ALS Is Evolving. (external link)

Media feature article

• Gottfried Greve; Irene Bircow Elgen; Maria Vollsæter (2021). Alvorlig kronisk syke barn må følges bedre opp!. (external link)

Letter to the editor

• Haakon Kvidaland; Sandra Stadheim; Signe Bø et al. (2022). Is it feasible to perform a continuous laryngoscopy exercise test with a cold air inhalate? A case report. (external link)
• Tonje Bårdsen; Ola Drange Røksund; Tomas Mikal Lind Eagan et al. (2023). Impaired Lung Function in Extremely Preterm-Born Adults in Their Fourth Decade of Life. (external link)
• Tiina Maarit Andersen; Astrid Sandnes; Ove Fondenes et al. (2018). Laryngoscopy Can Be a Valuable Tool for Unexpected Therapeutic Response in Noninvasive Respiratory Interventions.. (external link)

Study protocol

• Trude Elvebakk; Henrik Døllner; Anna Partty et al. (2025). INnovative Steroid Treatment to reduce Asthma development in children after first-time Rhinovirus-induced wheezing (INSTAR): protocol for a randomised placebo-controlled trial. (external link)

Conference abstract

• Julie Hestnes; Hedda B Hoel; Ola Drange Røksund et al. (2016). Ventilatory efficiency in children and adolescents born extremely preterm. (external link)
• Thomas Halvorsen; Hege Havstad Clemm; Maria Vollsæter et al. (2020). Conundrums of exercise-related breathing problems. Epiglottic, laryngeal, or bronchial obstruction?. (external link)

Journal corrigendum

• Silje Katrine Elgen Fevang; Madland Ada Røiseland; Irene Bircow Elgen et al. (2022). Correction to: Symptoms and antecedents of autism in children born extremely premature: a national population-based study (European Child & Adolescent Psychiatry, (2022), 10.1007/s00787-022-01953-4). (external link)

See a complete overview of publications in NVA.