Abstract
OBJECTIVE: The objective of this study was to compare the outcomes of endoscopic cartilage myringoplasty (ECM) with or without plasma radiofrequency (RF) tuboplasty (PRT) for repairing chronic large perforation with Eustachian tube dysfunction (ETD). MATERIALS AND METHODS: Chronic large perforations with ETD were randomly divided into receiving ECM or ECM plus PRT. During the 24 months follow-up, the Eustachian tube score (ETS), Eustachian Tube Dysfunction Questionnaire-7 (ETDQ-7), ET inflammation scale, hearing results, and graft success rate of the patients were analyzed. RESULTS: A total of 61 subjects were included in the study. Difference of ETS was significant before and after surgery in the ECM + PRT group (P < .05) but the ECM group was not (P > .05). Also, significant between-group difference was found regardless of post-24 months ETS and improvement value. Postoperative ETDQ-7 scores were significantly reduced compared with preoperative ETDQ-7 scores in both groups (P < .05), also, significant between-group difference was found regardless of post-24 months ETDQ-7 scores and improvement value. The graft success rate was 86.7% in the ECM group and 96.8% in the ECM + PRT group at postoperative 24 months (P > .05). In addition, although the ECM + PRT group showed a better air-bone gap improvement than the ECM group, the difference was not significant (13.01 ± 2.97 vs 10.92 ± 0.69 dB; P > .05). No PRT procedure-related serious adverse events were reported during the follow-up process. No patients developed atelectasis or otitis media with effusion in either group. CONCLUSION: ECM combined with low-temperature PRT did not affect the graft success rate but showed a better long-term improvement in ETS and ETDQ-7 than cartilage myringoplasty for the treatment of chronic perforation with ETD. In addition, although PRT showed a better hearing improvement, the difference was not significant between the 2 groups.