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Updated: Jun 2, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
Published on: December 1, 2023
[Exercise laryngoscopy: a new method for the differential diagnosis of dyspnea on exertion]
Hanna Tervonen1, Sergei Iljukov, Minna-Liisa Niskanen
1HYKS:n korva-, nenä ja kurkkutautien klinikka, HUS.
Abstract:
Exertional dyspnea originating from the laryngeal level can be established with certainty only if the paradoxical vocal cord adduction is observed during dyspnea. We have developed a novel diagnostic method, exercise laryngoscopy, which involves observation of the larynx with a flexible endoscope applied via the nose during a bicycle ergometry test. It has been our aim to improve the differential diagnosis of dyspnea on exertion and thus also reduce unnecessary antiasthmatic medication. Exercise laryngoscopy allows examination in the out-patient clinics because the method is well tolerated.
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