Learning Objectives: There was no significant difference among different diameter of stenotic EAC for cholesteatoma formation, and stenosis of EAC (>4 mm) with cholesteatoma may be a special state of EAC, we named it as blockage of EAC.
Introduction: The aim of the present study was to evaluate the clinical features and long-term outcomes of CAS comprehensively.
Methods: It was a retrospective review of patients who underwent meatoplasty for CAS at a tertiary referral hospital, from April 2008 to August 2015. A structured form was used to obtain data from patients’ anamneses, PTA, HRCT of the temporal bones, operation notes and videos, pathology reports and postoperative follow-up records.
Results: A total of 246 meatoplasty were performed on 232 patients in our study. There was no significant difference among different age groups for cholesteatoma formation, χ2 = 1.8, p > .05. Chi square test detected no significant difference among subgroups of stenotic EAC for cholesteatoma formation, χ2 = 2.5, p > .05. Postoperative ABG less than 30 dB occurred in 77.3% (99/128) of the patients, and there was no significant difference between cholesteatoma and no cholesteatoma groups, p > .05. The complication rate of CAS was 13.8% (20/144), cholesteatoma group had a higher rate of complications, χ2 = 5.49, p < .05.
Conclusions: Our results indicate that meatoplasty was an effective surgical intervention for CAS, there was a stability hearing outcome with prolonged follow-up. Jahrsdoerfer score was one factor which affected the postoperative hearing, but age was not the crucial factor in surgical indication. There was no significant difference among subgroups of stenotic EAC for cholesteatoma formation, and no significant difference between cholesteatoma and no cholesteatoma groups for hearing outcomes. But cholesteatoma group had a higher rate of complications.
