Patients
In accordance with American Thoracic Society (ATS)/European Respiratory
Society (ERS) guideline, 390 patients, who were admitted or consulted to
our clinic between June 2014 and June 2020, underwent flexible
fiberoptic bronchoscopy (FB) and 410 FB procedures were performed2,3. Sixty-five patients were diagnosed with lower
airway malacia. Written informed consent was obtained from the families
of all patients before bronchoscopy. Demographic and clinical features,
radiological findings, video image records of bronchoscopy and prognoses
of the patients with lower airway malacia were evaluated
retrospectively.