A Multi-Center Comparative Retrospective Study of Ossiculoplasty Surgery Under Oto-Endoscope and Microscope

By June 7, 2019

Zhao, Yu1; Zheng, Yongbo1; Hou, Zhaohui2; Wang, Zhaoyan3; Chen, Yang4; Yang, Qiong5
1 Department of Otorhinolaryngology, Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, China;
2 Department of Otorhinolaryngology, Head & Neck Surgery, General Hospital of the People’s Liberation Army, Beijing, China;
3 Department of Otorhinolaryngology, Head & Neck Surgery, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China;
4 Department of Otorhinolaryngology, Head & Neck Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China;
5 Department of Otorhinolaryngology, Head & Neck Surgery, Shenzhen Sixth People’s Hospital, Shenzhen, China.

Introduction:
A retrospective research method was used to analyze the characteristics of ossiculoplasty surgery between oto-endoscope and microscope to explore the efficacy and advantages of ossiculoplasty surgery under oto-endoscope, and to provide a reference for its clinical application.

Methods:
This study recruited 62 patients with conduction hearing loss who had undergone simple ossiculoplasty surgery in the five hospitals in China (45 cases under oto-endoscope operation and 17 cases under microscope operation). The operation procedures, surgery time, postoperative complications and hearing improvements were compared between the two groups.

Discussion:
The average time of surgery in the oto-endoscope group and microscope group was 43.56±18.25 min and 48.25±8.35 min, respectively. The significant difference of operation time did not be detected between the two groups (F=3.26, P>0.05). There were no significant differences in the incidences of postoperative complications between the two groups (tinnitus: c2=0.14, P>0.05; dysgeusia: c2=0.04, P>0.05; vertigo: c2=0.06, P>0.05). The averages of air-bone gap between the two groups were no significant differences before surgery (F=4.31,P>0.05), as well as at the third month after operation (F=3.89,P>0.05). The air-bone gap values of the third month post surgery were significantly lower than that before operation in the two groups (oto-endoscope group: t=2.31, P<0.05; microscope group: t=2.26, P<0.05).The ossiculoplasty surgery did not have significant differences in the operation time, postoperative efficacy, and occurrence of complications between the oto-endoscope and microscope. The advantages of oto-endoscope surgery are the clear vision, detailed observation, less trauma, and faster postoperative recovery. Therefore, oto-endoscopic ossiculoplasty surgery is deserved for better clinical application.