Sunny Shah1,2, Rameen Walters1,2, Jake Langlie1, Camron Davies1,2, Ariel Finberg1, Maria-Pia Tuset1, Dario Ebode1, Rahul Mittal1, Adrien A Eshraghi1,3,4,5. 1. Hearing Research and Cochlear Implant Laboratory, Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, Florida, United States of America. 2. Herbert Wertheim College of Medicine, Florida International University, Miami, Florida, United States of America. 3. Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, United States of America. 4. Department of Biomedical Engineering, University of Miami, Coral Gables, Florida, United States of America. 5. Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida, United States of America.
Abstract
OBJECTIVES: To evaluate the outcomes of cochlear implantation in patients with severe to profound sensorineural hearing loss due to inner ear malformations (IEMs) when compared to patients without IEMs. We discussed audiological outcomes such as open-set testing, closed-set testing, CAP score, and SIR score as well as postoperative outcomes such as cerebrospinal fluid gusher and incomplete insertion rate associated with cochlear implantation in individuals with IEMs. DATA SOURCES: PubMed, Science Direct, Web of Science, Scopus, and EMBASE databases. REVIEW METHODS: After screening a total of 222 studies, twelve eligible original articles were included in the review to analyze the speech and hearing outcomes of implanted patients with IEMs. Five reviewers independently screened, selected, and extracted data. The "Tool to Assess Risk of Bias in Cohort Studies" published by the CLARITY group was used to perform quality assessment on eligible studies. Systematic review registration number: CRD42021237489. RESULTS: IEMs are more likely to be associated with abnormal position of the facial nerve, raising the risk of intraoperative complications. These patients may benefit from cochlear implantation, but audiological outcomes may also be less favorable than in individuals without IEMs. Furthermore, due to the risk of cerebrospinal fluid gusher, incomplete insertion of electrodes, and postoperative facial nerve stimulation, surgeons can employ precautionary measures such as preoperative imaging and proper counseling. Postoperative imaging is suggested to be beneficial in ensuring proper electrode placement. CONCLUSIONS: Cochlear implants (CIs) have the potential to provide auditory rehabilitation to individuals with IEMs. Precise classification of the malformation, preoperative imaging and anatomical mapping, appropriate electrode selection, intra-operative techniques, and postoperative imaging are recommended in this population.
OBJECTIVES: To evaluate the outcomes of cochlear implantation in patients with severe to profound sensorineural hearing loss due to inner ear malformations (IEMs) when compared to patients without IEMs. We discussed audiological outcomes such as open-set testing, closed-set testing, CAP score, and SIR score as well as postoperative outcomes such as cerebrospinal fluid gusher and incomplete insertion rate associated with cochlear implantation in individuals with IEMs. DATA SOURCES: PubMed, Science Direct, Web of Science, Scopus, and EMBASE databases. REVIEW METHODS: After screening a total of 222 studies, twelve eligible original articles were included in the review to analyze the speech and hearing outcomes of implanted patients with IEMs. Five reviewers independently screened, selected, and extracted data. The "Tool to Assess Risk of Bias in Cohort Studies" published by the CLARITY group was used to perform quality assessment on eligible studies. Systematic review registration number: CRD42021237489. RESULTS: IEMs are more likely to be associated with abnormal position of the facial nerve, raising the risk of intraoperative complications. These patients may benefit from cochlear implantation, but audiological outcomes may also be less favorable than in individuals without IEMs. Furthermore, due to the risk of cerebrospinal fluid gusher, incomplete insertion of electrodes, and postoperative facial nerve stimulation, surgeons can employ precautionary measures such as preoperative imaging and proper counseling. Postoperative imaging is suggested to be beneficial in ensuring proper electrode placement. CONCLUSIONS: Cochlear implants (CIs) have the potential to provide auditory rehabilitation to individuals with IEMs. Precise classification of the malformation, preoperative imaging and anatomical mapping, appropriate electrode selection, intra-operative techniques, and postoperative imaging are recommended in this population.
Authors: Jae-Jin Song; Joo Hyun Park; Jeong Hun Jang; Jun Ho Lee; Seung Ha Oh; Sun O Chang; Chong Sun Kim Journal: Acta Otolaryngol Date: 2012-06-05 Impact factor: 1.494
Authors: Byung Yoon Choi; Yong-Hwi An; Jae-Jin Song; Ja-Won Koo; Jun Ho Lee; Seung Ha Oh; Sun O Chang; Chong Sun Kim; Joo Hyun Park Journal: Laryngoscope Date: 2015-11-24 Impact factor: 3.325