The current gold-standard means for diagnosing EILO is the continuous laryngoscopy during<unk>  test (CLE-test). This test involves the placement of a flexible laryngoscope via nostril, which is then secured in place and held with headgear. It allows continuous visualization of the<unk>  aperture during<unk> . The CLE test can be used during indoor treadmill or cycle-ergometer<unk>  but also whilst rowing or swimming or<unk> ng outdoors The examiner visually evaluates the relative change of the<unk>  inlet in the patient throughout the CLE-test. One common grading system uses 4 steps (0-3) on glottic and supraglottic level respectively. Grades 0-1 are considered normal, whereas grades 2-3 on either or both levels are consistent with EILO. There is a need to identify other less-invasive means of making a secure diagnosis.
Exercise-induced laryngeal obstruction
Laryngopharyngeal reflux
Odontoma dysphagia syndrome
Esophageal motility disorder
Retropharyngeal abscess
Subglottic stenosis
Parapharyngeal abscess
Esophageal food bolus obstruction