Role of Immediate Pre-Operative Tympanometry in Cochlear Implantation: MERF Protocol and Experience.

Autor: Dharmarajan S; JSS.Medical College, Mysore, India., Dham R; Madras ENT Research Foundation (Pvt) Ltd, 1, First Cross, Street, Off Second Main Road, RA Puram, Chennai, Tamil Nadu 600028 India., Kurkure R; Army College of Medical Sciences, Delhi, India., Arumugam SV; Madras ENT Research Foundation (Pvt) Ltd, 1, First Cross, Street, Off Second Main Road, RA Puram, Chennai, Tamil Nadu 600028 India., Maheswari S; Madras ENT Research Foundation (Pvt) Ltd, 1, First Cross, Street, Off Second Main Road, RA Puram, Chennai, Tamil Nadu 600028 India., Kameswaran M; Madras ENT Research Foundation (Pvt) Ltd, 1, First Cross, Street, Off Second Main Road, RA Puram, Chennai, Tamil Nadu 600028 India.
Jazyk: angličtina
Zdroj: Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India [Indian J Otolaryngol Head Neck Surg] 2021 Sep; Vol. 73 (3), pp. 351-355. Date of Electronic Publication: 2021 May 07.
DOI: 10.1007/s12070-021-02591-z
Abstrakt: (1) To study the association between an immediate pre-operative tympanometric profile in patients undergoing cochlear implantation with their intraoperative findings. (2) To analyse the intraoperative middle ear findings that require a staged cochlear implantation in patients presenting with a B-type tympanogram. (3) To study the complications in this group of patients during the 1-year follow-up. This retrospective non-interventional cohort study is done over a period of 6 years. Bilaterally profound deaf children, less than 6 years of age, and no history of otitis media with effusion were included in the study. Children who met the inclusion criteria were divided into 4 groups based on their tympanometric profiles that are A, As, B, and C type tympanogram and, their intraoperative findings were categorized as normal, mild oedema, minimal granulation with mild oedema, moderate to extensive granulation with or without oedematous mucosa and glue. Then finally, depending on the intraoperative middle ear and mastoid finding, a single-stage surgery or a two stage surgery was decided upon. A total of 1025 patients were implanted during the study period, 975 patients met our inclusion criteria. In our series, we found a statistically significant difference ( p  < 0.0001) between the tympanograms and their respective intra-operative middle ear findings. A statistically significant difference was seen ( p  < 0.0001) between patients who underwent a single-stage cochlear implant and those who underwent a two-staged surgery, regarding their intraoperative middle ear findings. No statistical significance was seen in the occurrence of complications between the groups undergoing a single stage and a two-staged surgery ( p  > 0.5). This study showcases the importance of immediate pre-operative tympanometry in cochlear implant surgeries. Two-stage surgery is a decision taken on the operating table, depending on the extent of pathology and visibility of the round window niche.
Competing Interests: Conflict of interestThe author declares no potential conflict of interest to the research, authorship, and/or publication of this article.
(© Association of Otolaryngologists of India 2021.)
Databáze: MEDLINE
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