Design
In this retrospective study, we reviewed medical records of 80 CSOM
patients who underwent endoscopic myringoplasty between August 2019 and
April 2021 with an extra perichondrium patch to strengthen the
traditional cartilage graft. The demographics and characteristics of
patients are shown in Table 1. The trial has been approved by the ethics
committee of XX hospital.
Patients were enrolled using the following inclusion criteria and
exclusion criteria. Inclusion criteria: (1) CSOM patients with large
(diameter ≥ 5mm), subtotal or anterior marginal perforations; (2)
patients who had received an extra perichondrium patch during the
procedure of endoscopic cartilage myringoplasty; (3) patients without
pathological changes in tympanum, attic or the ossicular chain and who
underwent myringoplasty only; (4) patients who had provided informed
consent. Exclusion criteria: (1) patients who cannot tolerate general
anesthesia due to serious diseases; (2) patients with severe EAC
stenosis or EAC malformation; (3) patients with small perforation
(diameter less than 5 mm).