Lysis of interarytenoid synechia (Type I Posterior Glottic Stenosis): vocal fold mobility and airway results.

BACKGROUND The Type I Posterior Glottic Stenosis (PGS-I) is a well-described but uncommon clinical entity. Despite this, there is little known about the outcome of surgical treatment. METHODS Retrospective case series. RESULTS Thirteen cases met inclusion criteria. All but one patient had a tracheostomy at the time of initial evaluation. At the postoperative visit, seven patients (54%) had completely normal vocal fold motion. Of the verbal patients, 6 (50%) had normal vocal function as reported by both the patient/caregiver and the physician, and 10 (83%) patients were successfully decannulated. CONCLUSIONS Patients with an isolated interarytenoid synechia have an excellent prognosis with regard to decannulation. Although many patients regain normal vocal fold motion and a return to their preintubation vocal function, a significant proportion can have persistent deficits in vocal fold mobility and some level of dysphonia. This report represents the largest known series of PGS-I cases.