Surgical Outcomes With Cochlear Implantation in Patients With Enlarged Cochlear Aperture: A Systematic Review

Abstract

Objective: Evaluate surgical outcomes in patients with enlarged cochlear aperture (ECA) after cochlear implantation. Databases Reviewed: PubMed, EMBASE, and Scopus. Methods: A systematic review was performed using standardized methodology. Studies were included if they included subjects with ECA who underwent cochlear implantation. Exclusion criteria included non-English articles, abstracts, letters/commentaries, case reports, and reviews. Bias was assessed using the Risk of Bias in Non-randomized Studies of Interventions (ROBINS-I) tool. Results: Out of 1,688 identified articles, 7 articles representing 23 subjects with ECA were included. Publication rates increased between the period of study from 2009 to 2018. Four studies were level 4 evidence and three studies were level 3 evidence. In total, 20 subjects underwent cochlear implantation. Cerebrospinal fluid gushers were encountered in the majority of cases that reported complications