Parab Sapna Ramkrishna, Khan Mubarak M
Sushrut ENT Hospital and Dr. Khan's Research Centre, Talegaon Dabhade, Pune India.
Indian J Otolaryngol Head Neck Surg. 2019 Dec;71(4):504-511. doi: 10.1007/s12070-019-01682-2. Epub 2019 Jun 20.
The tympanic membrane retraction pocket is a pathological invagination of tympanic membrane into the middle ear space. The most common sites for formation of retraction pocket are pars flaccida and postero-superior parts. Decision about the procedure and the timing of the treatment of retraction pockets is debatable and depends on the functional and anatomic condition of the ear. To evaluate the results of the technique of two handed endoscopic management of retraction pockets with sliced tragal cartilage. Prospective Non Randomized Clinical Study. The study included 41 ears operated with the technique of two handed endoscopic cartilage tympanoplasty for retraction pockets with endoscope holders from November 2013 to May 2016 with a follow up period ranging from 22 to 53 months. Cases of cholesteatoma and tympanic membrane perforation were excluded from the study. Pre and postoperative symptoms and air-bone gaps were recorded. The average preoperative air-bone gap in the study group was 24.53 ± 4.326 dB. 28 ears were of pars tensa retractions (stage II-4, stage III-15, and stage IV-9) and 13 were pars flaccida retractions (stage III-8 and stage IV-5). 24 ears had ossicular erosion. The follow up revealed that, the results of two handed endoscopic sliced cartilage tympanoplasty for retraction pockets were stable and there was no recurrence of the retraction and the post-operative air-bone-gap closure was achieved to 13.62 ± 4.78, 14.13 ± 5.91 dB, 14.32 ± 3.46 and 14.57 ± 3.88 dB at 6 months, 1 year, 2 years, 3 years respectively. Though, indications for surgery are based mostly on anatomic status and observation of behaviour of retraction pocket over time, we recommend early management of retraction pockets by the technique of endoscopic sliced tragal cartilage tympanoplasty with tragal cartilage of 0.5 mm thickness using endoscope holder. : Level 4.
鼓膜内陷袋是鼓膜向中耳腔的病理性内陷。形成内陷袋最常见的部位是松弛部和后上部。关于内陷袋治疗的手术方式及时机的抉择存在争议,这取决于耳部的功能和解剖状况。评估双手内镜下使用带蒂耳屏软骨治疗内陷袋技术的效果。前瞻性非随机临床研究。该研究纳入了2013年11月至2016年5月期间采用双手内镜下带蒂软骨鼓室成形术治疗内陷袋并使用内镜固定器的41只耳,随访时间为22至53个月。胆脂瘤和鼓膜穿孔病例被排除在研究之外。记录术前和术后症状及气骨导差。研究组术前平均气骨导差为24.53±4.326dB。28只耳为紧张部内陷(Ⅱ期4只,Ⅲ期15只,Ⅳ期9只),13只耳为松弛部内陷(Ⅲ期8只,Ⅳ期5只)。24只耳存在听骨链侵蚀。随访结果显示,双手内镜下带蒂软骨鼓室成形术治疗内陷袋的效果稳定,内陷无复发,术后气骨导差在6个月、1年、2年、3年时分别改善至13.62±4.78dB、14.13±5.91dB、14.32±3.46dB和14.57±3.88dB。虽然手术指征主要基于解剖状况以及对内陷袋随时间变化情况的观察,但我们建议采用双手内镜下带蒂耳屏软骨鼓室成形术,使用厚度为0.5mm的耳屏软骨和内镜固定器,对内陷袋进行早期治疗。:4级