• Exercise inducible laryngeal obstruction: diagnostics and management 

      Røksund, Ola Drange; Heimdal, John-Helge; Clemm, Hege Synnøve Havstad; Vollsæter, Maria; Halvorsen, Thomas (Peer reviewed; Journal article, 2017-01)
      Obstruction of the central airways is an important cause of exercise-induced inspiratory symptoms (EIIS) in young and otherwise healthy individuals. This is a large, heterogeneous and vastly understudied group of patients. ...
    • Exercise-induced laryngeal obstruction in athletes treated with inspiratory muscle training 

      Sandnes, Astrid; Andersen, Tiina Maarit; Clemm, Hege Synnøve Havstad; Hilland, Magnus; Vollsæter, Maria; Heimdal, John-Helge; Eide, Geir Egil; Halvorsen, Thomas; Røksund, Ola Drange (Peer reviewed; Journal article, 2019-01-18)
      Background Exercise-induced laryngeal obstruction (EILO) is common in athletes and presents with dyspnoea, chest tightness, inspiratory stridor and sometimes panic reactions. The evidence for conservative treatment is weak, ...
    • Exercise-induced laryngeal obstruction: natural history and effect of surgical treatment 

      Maat, Robert Christiaan; Hilland, Magnus; Røksund, Ola Drange; Halvorsen, Thomas; Olofsson, Jan; Aarstad, Hans Jørgen; Heimdal, John-Helge (Peer reviewed; Journal article, 2011-06-05)
      The current follow-up study concerning the supraglottic type of exercise-induced laryngeal obstruction (EILO) was performed to reveal the natural history of supraglottic EILO and compare the symptoms, as well as the laryngeal ...
    • Feasibility and tolerability of measuring translaryngeal pressure during exercise 

      Kelly, Zoe Louise; Halvorsen, Thomas; Heimdal, John-Helge; Strand, Eric; Vollsæter, Maria; Clemm, Hege Synnøve Havstad; Røksund, Ola Drange (Peer reviewed; Journal article, 2019)
      Objectives/Hypothesis: To determine if simultaneous tracheal and supraglottic pressure measurement performed during a continuous laryngoscopy exercise (CLE) test is possible, tolerable, and feasible, and if so, whether ...
    • Laryngeal response patterns influence the efficacy of mechanical assisted cough in amyotrophic lateral sclerosis 

      Andersen, Tiina Maarit; Sandnes, Astrid; Brekka, Anne Kristine; Hilland, Magnus; Clemm, Hege; Fondenes, Ove; Tysnes, Ole Bjørn; Heimdal, John-Helge; Halvorsen, Thomas; Vollsæter, Maria; Røksund, Ola Drange (Peer reviewed; Journal article, 2017)
      Background: Most patients with amyotrophic lateral sclerosis (ALS) are treated with mechanical insufflation–exsufflation (MI-E) in order to improve cough. This method often fails in ALS with bulbar involvement, allegedly ...
    • Larynx during exercise: the unexplored bottleneck of the airways 

      Røksund, Ola Drange; Heimdal, John-Helge; Olofsson, Jan; Maat, Robert; Halvorsen, Thomas (Peer reviewed; Journal article, 2014-07-18)
      Exercise-induced shortness of breath is not uncommon in otherwise healthy young people. Based on the presenting symptoms alone, it is challenging to distinguish exercise-induced asthma (EIA) from exercise-induced obstruction ...
    • Larynx in exercising humans. The unexplored bottleneck of the airways 

      Røksund, Ola Drange (Doctoral thesis; Peer reviewed, 2012-06-21)
    • Left Vocal Cord Paralysis After Patent Ductus Arteriosus Ligation: A Systematic Review. 

      Engeseth, Merete Salveson; Olsen, Nina Rydland; Mæland, Silje; Halvorsen, Thomas; Goode, Adam; Røksund, Ola Drange (Peer reviewed; Journal article, 2018)
      Context: Extremely premature (EP) infants are at increased risk of left vocal cord paralysis (LVCP) following surgery for patent ductus arteriosus (PDA). Objective: A Systematical Review was conducted to investigate the ...
    • Physiotherapy improves symptoms of exercise-induced laryngeal obstruction in young elite athletes: A case series 

      Kolnes, Liv-Jorunn; Vollsæter, Maria; Røksund, Ola Drange; Stensrud, Trine (Peer reviewed; Journal article, 2019)
      Objective: A constricted, upper chest breathing pattern and postural dealignments habitually accompany exercise-induced laryngeal obstruction (EILO), but there are few effective treatments for athletes presenting with EILO. ...
    • Predicting physical activity in a national cohort of children born extremely preterm 

      Engan, Mette; Engeseth, Merete Salveson; Fevang, Silje Katrine Elgen; Vollsæter, Maria; Eide, Geir Egil; Røksund, Ola Drange; Halvorsen, Thomas; Clemm, Hege Havstad (Journal article; Peer reviewed, 2020)
      Predicting physical activity in a national cohort of children born extremely preterm. Objectives To compare physical activity among school-aged children born extremely preterm or with extremely low birthweight (EP/ELBW) ...
    • Reliability of maximum oxygen uptake in cardiopulmonary exercise testing with continuous laryngoscopy 

      Engan, Mette; Jansrud, Ida; Bekken, Marianne; Halvorsen, Thomas; Fretheim-Kelly, Zoe Louise; Vollsæter, Maria; Bovim, Lars Peder Vatshelle; Røksund, Ola Drange; Clemm, Hege Havstad (Journal article; Peer reviewed, 2020)
      Aims A cardiopulmonary exercise test (CPET) is the gold standard to evaluate symptom-limiting exercise intolerance, while continuous laryngoscopy performed during exercise (CLE) is required to diagnose exercise-induced ...
    • Self-Reported Health in Adolescents With Exercise-Induced Laryngeal Obstruction; A Cross-Sectional Study 

      Benestad, Merete R.; Drageset, Jorunn; Clemm, Hege Synnøve Havstad; Røksund, Ola Drange; Vollsæter, Maria; Halvorsen, Thomas; Hysing, Mari; Vederhus, Bente Johanne (Journal article; Peer reviewed, 2021)
      Background: Exercise-induced laryngeal obstruction (EILO) is common in young people with exertional breathing difficulties. Psychological characteristics have been proposed as underlying contributors; however, the evidence ...
    • Severe exercise-induced laryngeal obstruction treated with supraglottoplasty 

      Sandnes, Astrid; Hilland, Magnus; Vollsæter, Maria; Andersen, Tiina Maarit; Engesæter, Ingvild Øvstebø; Sandvik, Lorentz; Heimdal, John-Helge; Halvorsen, Thomas; Eide, Geir Egil; Røksund, Ola Drange; Clemm, Hege Synnøve Havstad (Peer reviewed; Journal article, 2019-07-31)
      Introduction: Exercise induced laryngeal obstruction (EILO) is relatively common in adolescents, with symptoms often confused with exercise induced asthma. EILO often starts with medial or inward rotation of supraglottic ...
    • Tailoring NIV by dynamic laryngoscopy in a child with spinal muscular atrophy type I 

      Vollsæter, Maria; Skjoldmo, Anett; Røksund, Ola Drange; Hilland, Magnus; Andersen, Tiina Maarit (Journal article; Peer reviewed, 2021)
      Dynamic laryngoscopy during noninvasive (NIV) respiratory therapy is feasible and may facilitate optimal and individualized treatment in patients with chronic respiratory failure, also in children.
    • Ventilatory efficiency in children and adolescents born extremely preterm 

      Hestnes, Julie; Hoel, Hedda Benedicte; Risa, Ole J.; Romstøl, Hanna O.; Røksund, Ola Drange; Frisk, Bente; Thorsen, Einar; Halvorsen, Thomas; Clemm, Hege Synnøve Havstad (Peer reviewed; Journal article, 2017-07-13)
      Purpose: Children and adolescents born extremely preterm (EP) have lower dynamic lung volumes and gas transfer capacity than subjects born at term. Most studies also report lower aerobic capacity. We hypothesized that ...
    • Voice and Exercise Related Respiratory Symptoms in Extremely Preterm Born Children After Neonatal Patent Ductus Arteriosus 

      Engeseth, Merete Salveson; Engan, Mette; Clemm, Hege Synnøve Havstad; Vollsæter, Maria; Nilsen, Roy Miodini; Markestad, Trond Jacob; Halvorsen, Thomas; Røksund, Ola Drange (Journal article; Peer reviewed, 2020)
      Objective: To investigate voice characteristics and exercise related respiratory symptoms in extremely preterm born 11-year-old children, focusing particularly on associations with management of a patent ductus arteriosus ...
    • Working Towards a Common Transatlantic Approach for Evaluation of Exercise-Induced Laryngeal Obstruction 

      Røksund, Ola Drange; Olin, James Tod; Halvorsen, Thomas (Peer reviewed; Journal article, 2018)