1. Cochlear implantation under local anesthesia: Saint Petersburg experience.
- Author
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Yanov, Y., Kuzovkov, V., Sugarova, S., and Lilenko, A.
- Subjects
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TREATMENT of deafness , *CONFERENCES & conventions , *COCHLEAR implants , *LOCAL anesthesia - Abstract
Objectives: Cochlear implantation (CI) has become the standard treatment for severe-to-profound sensorineural deafness in the last 30 ears. It is well known that some patients are denied from the surgery due to surgical reasons (ossification, severe malformations) and anesthesiology related reasons (severe comorbidities). Material and Method: Twelve adult (aged 21 -- 64 years) subjects underwent unilateral CI under LA in our institution between October 2014 and August 2017. All subjects had an American Society of Anesthesiologists (ASA) Physical Status classification of 4, corresponding with significant comorbidity. In comparison with some other studies no conscious sedation was used at our institution due to the potential risk of adverse side effects. Result and Conclusion: Total operating time was calculated as time from incision to dressing placement, the mean time was 27 ± 5.2 min. The time included electrode impedances testing and our new developed electrically evoked pure tone audiometry (ePTA). Subjects' pain was assessed intraoperatively, in 6 and 24 h after surgery with the Numeric Pain Rating Scale (NRS- 11). The NRS-11 is 11-point scale in which a score of 0 means ''no pain'' and 10 means ''worst pain imaginable.'' Ten subjects did not experience any pain during surgery and reported the NRS score was 0. One subject reported some pain during the drilling of the antrotomy and his intraoperative NRS score was 2. And one subject experienced pain during round window overhang removal (NRS score 3). NRS scores varied from 0 to 3 in the postoperative period (6 and 24 h) and analgesics were administered when the LA had worn off. CI surgery under local anesthesia was found to be safe in patients with significant comorbidities where general anesthesia is contraindicated. [ABSTRACT FROM AUTHOR]
- Published
- 2018