Rigid Laryngoscopy Is Necessary to Diagnose Laryngeal Cleft

Abstract

Objective: 1) Identify the signs and symptoms of a laryngeal cleft in children. 2) Compare diagnostic methods available for identifying laryngeal cleft and determine their utility.

Method: The charts of all patients diagnosed with laryngeal cleft in a tertiary care institution between 2009 and 2010 were evaluated retrospectively for age, gender, comorbidity, symptoms, bedside swallow evaluation, and results of imaging studies. Findings on flexible and direct laryngoscopy, both performed under general anesthesia, were compared.

Results: Six patients had a diagnosis of laryngeal cleft, confirmed by direct laryngoscopy, performed for cough and signs of aspiration. In 3 cases the pattern on a barium video swallow examination heightened suspicion of laryngeal cleft. Flexible laryngoscopy was performed on all patients by a pulmonologist. Laryngeal cleft was suspected in four cases but could not be confirmed. Direct laryngoscopy was performed by an otolaryngologist. Direct laryngoscopy, in which the arytenoids could be physically separated, allowed for definitive diagnosis of the cleft and identification of its type and severity in all 6 cases.

Conclusion: Video swallow and flexible laryngoscopy can raise suspicion of a rare laryngeal cleft in patients with otherwise common symptoms. A laryngeal cleft and its type can be definitively diagnosed by a direct laryngoscopy in which the inter-arytenoid space is palpated.