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Roßberg C, Timm M, Roßberg W, Kludt E, Bronzlik P, Lesinski-Schiedat A, Büchner A, Lenarz T. [Comparison of speech understanding taking into account the exact electrode position (SRA/MRA/CA)]. Laryngorhinootologie 2023; 102:850-855. [PMID: 37054746 DOI: 10.1055/a-2036-7896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Cochlear implantation has been a routine hearing rehabilitation procedure for years. Nevertheless, not all parameters that influence speech understanding after implantation are known. We test the hypothesis whether there is a connection between speech understanding and the position of different electrode types in relation to the modiolus in the cochlea with identical speech processors. For this purpose, in this retrospective study, we compare the hearing results with different electrode types ("Straight Research Array" [SRA], "Modiolar Research Array" [MRA] and "Contour Advance" [CA]) from the manufacturer Cochlear in matched pair groups.After creating three groups using "matched pairs" (n=52 patients per group), the cochlear parameters (length of the outer wall, angle of insertion, insertion depth, cochlear coverage and total length of the electrode in the cochlea, wrapping factor) were measured in the routinely performed manner pre- and post-operative high-resolution CT or DVT. The Freiburg monosyllabic understanding was used as a target variable one year after implantation.In the Freiburg monosyllabic test one year postoperatively, patients with MRA had a monosyllabic understanding of 51.2%, patients with SRA 49.5% and patients with CA 58.0%. It could be shown that with increasing cochlear coverage with MRA and CA, the speech understanding of the patients decreases and with SRA it increases. In addition, it could be shown that the monosyllabic understanding increases with increasing "wrapping factor".The results show that the position of the electrode to the modiolus is not the only factor explaining differences in outcome after cochlear implantation.
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Affiliation(s)
- Caroline Roßberg
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Hochschule Hannover, Hannover, Germany
| | - Max Timm
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Hochschule Hannover, Hannover, Germany
| | - Willi Roßberg
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Hochschule Hannover, Hannover, Germany
| | - Eugen Kludt
- Deutsches Hörzentrum, Medizinische Hochschule Hannover, Hannover, Germany
| | - Paul Bronzlik
- Neuroradiologie, Medizinische Hochschule Hannover Klinikum, Hannover, Germany
| | - Anke Lesinski-Schiedat
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Hochschule Hannover, Hannover, Germany
| | - Andreas Büchner
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Hochschule Hannover, Hannover, Germany
| | - Thomas Lenarz
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Hochschule Hannover, Hannover, Germany
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Gowrishankar SV, Fleet A, Tomasoni M, Durham R, Umeria R, Merchant SA, Shah SFH, Muzaffar J, Mohammed H, Kuhn I, Tysome J, Smith ME, Donnelly N, Axon P, Bance M, Borsetto D. The Risk of Meningitis After Cochlear Implantation: A Systematic Review and Meta-Analysis. Otolaryngol Head Neck Surg 2023; 169:467-481. [PMID: 36864717 DOI: 10.1002/ohn.309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 03/04/2023]
Abstract
OBJECTIVE This study aims to estimate the rate of postoperative meningitis (both immediate and long-term) in patients following cochlear implants (CIs). It aims to do so through a systematic review and meta-analysis of published studies tracking complications after CIs. DATA SOURCES MEDLINE, Embase, and Cochrane Library. REVIEW METHODS This review was performed in line with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies tracking complications following CIs in patients were included. Exclusion criteria included non-English language studies and case series reporting <10 patients. Bias risk was evaluated using the Newcastle-Ottawa Scale. Meta-analysis was performed through DerSimonian and Laird random-effects models. RESULTS A total of 116/1931 studies met the inclusion criteria and were included in the meta-analysis. Overall, there were 112 cases of meningitis in 58,940 patients after CIs. Meta-analysis estimated an overall rate of postoperative meningitis of 0.07% (95% confidence interval [CIs], 0.03%-0.1%; I2 = 55%). Subgroup meta-analysis showed this rate had 95% CIs crossing 0% in implanted patients who received the pneumococcal vaccine, antibiotic prophylaxis, those with postoperative acute otitis media (AOM), and those implanted less than 5 years. CONCLUSION Meningitis is a rare complication following CIs. Our estimated rates of meningitis after CIs appear lower than prior estimates based on epidemiological studies in the early 2000s. However, the rate still appears higher than the baseline rate in the general population. The risk was very low in implanted patients who received the pneumococcal vaccine, antibiotic prophylaxis, received unilateral or bilateral implantations, developed AOM, those implanted with a round window or cochleostomy techniques, and those under 5 years.
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Affiliation(s)
- Shravan V Gowrishankar
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
- Department of Clinical Medicine, University of Cambridge, School of Clinical Medicine, Cambridge, UK
| | - Alex Fleet
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
- Department of Clinical Medicine, University of Cambridge, School of Clinical Medicine, Cambridge, UK
| | - Michele Tomasoni
- Department of Otolaryngology-Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Rory Durham
- Department of Clinical Medicine, University of Cambridge, School of Clinical Medicine, Cambridge, UK
| | - Rishi Umeria
- Department of Clinical Medicine, University of Cambridge, School of Clinical Medicine, Cambridge, UK
| | - Serena A Merchant
- Department of Clinical Medicine, University of Cambridge, School of Clinical Medicine, Cambridge, UK
| | - Syed F H Shah
- Department of Clinical Medicine, University of Cambridge, School of Clinical Medicine, Cambridge, UK
| | - Jameel Muzaffar
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
| | - Hassan Mohammed
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
| | - Isla Kuhn
- Cambridge University Medical Library, Cambridge, UK
| | - James Tysome
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
| | - Matthew E Smith
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
| | - Neil Donnelly
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
| | - Patrick Axon
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
| | - Manohar Bance
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
- Department of Clinical Medicine, University of Cambridge, School of Clinical Medicine, Cambridge, UK
| | - Daniele Borsetto
- Department of Otolaryngology-Head and Neck Surgery, Cambridge University Hospitals NHS Trust, Cambridge, UK
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Lovin BD, Sweeney AD, Chapel AC, Alfonso K, Govil N, Liu YCC. Effects of Age on Delayed Facial Palsy After Otologic Surgery: A Systematic Review and Meta-Analysis. Ann Otol Rhinol Laryngol 2022; 131:1092-1101. [PMID: 34706584 DOI: 10.1177/00034894211053966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVES To report 4 cases of delayed facial palsy (DFP) after pediatric middle ear (ME) surgery and systematically review and analyze the associated literature to evaluate the effects of age on DFP etiology, management, and prognosis. METHODS Systematic review of PubMed, Cochrane Library, and Embase for articles related to DFP after cochlear implantation (CI) was performed. These articles were assessed for level of evidence, methodological limitations, and number of cases. Meta-analysis was performed to assess the effects of age on DFP incidence. Furthermore, a comprehensive list of all pediatric DFP cases after otologic surgery was assembled through a multi-institutional retrospective review and systematic review of the literature. RESULTS Twenty-nine articles fit the criteria for inclusion in the meta-analysis. The incidence of DFP after CI was 0.23% and 1.01% for pediatric and adult cases, respectively. This difference was statistically significant (P < .001, odds ratio 4.36). Twenty-three cases, adding to the 4 presented herein, were suitable for a comprehensive list. The mean age was 6.9 years. Average postoperative day of paresis onset was 5.4, with an average maximum House-Brackmann grade of 3.5. All patients obtained full facial recovery after an average of 23.5 days. CONCLUSIONS The systematic review demonstrates that DFP after pediatric CI is rare and occurs at a significantly lower rate than in adults, further supporting the viral reactivation hypothesis of DFP. The prognosis for pediatric DFP after otologic surgery is excellent, with a high rate of full recovery in a short time frame. However, steroid administration can be considered. LEVEL OF EVIDENCE IIa.
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Affiliation(s)
- Benjamin D Lovin
- Bobby R. Alford Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Alex D Sweeney
- Bobby R. Alford Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Houston, TX, USA.,Division of Otolaryngology, Department of Surgery-Head and Neck Surgery, Texas Children's Hospital, Houston, TX, USA.,Department of Neurosurgery, Baylor College of Medicine, Houston, TX, USA
| | | | - Kristan Alfonso
- Pediatric Otolaryngology, Department of Otolaryngology-Head and Neck Surgery, Emory University School of Medicine, Atlanta, GA, USA
| | - Nandini Govil
- Pediatric Otolaryngology, Department of Otolaryngology-Head and Neck Surgery, Emory University School of Medicine, Atlanta, GA, USA.,Division of Pediatric Otolaryngology, Children's Hospital of Pittsburgh of the University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Yi-Chun Carol Liu
- Bobby R. Alford Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Houston, TX, USA.,Division of Otolaryngology, Department of Surgery-Head and Neck Surgery, Texas Children's Hospital, Houston, TX, USA
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Cochlear implantation after solid organ transplantation: long term results and review of the literature. Eur Arch Otorhinolaryngol 2019; 276:2747-2754. [PMID: 31227869 DOI: 10.1007/s00405-019-05524-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 06/17/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To analyze rate and type of complications in cochlear implant (CI) recipients receiving immunosuppressive therapy following solid organ transplant (SOT). STUDY DESIGN Retrospective case series. English language literature review. SETTING Tertiary referral center. INTERVENTION Cochlear implantation surgery following solid organ transplantation (SOT) and immunosuppressive therapy. METHODS Data of patients who received CI after SOT and with at least one year of follow up were reviewed. Main outcome measures were the rate and type of complications, classified as major (requiring a second surgical procedure) and minor (requiring medical therapy). A search was performed in PubMed database on January 2019 using the keywords: organ transplant; cochlear implant, complications, deafness, solid organ transplant, immunosuppressive therapy. Only studies reporting on patients who have been implanted after the transplant procedure and with a follow up period of at least 1 year were considered. Final analysis was performed on pooled data. RESULTS Four patients received CI surgery following SOT. Age at treatment ranged from 40 to 47 years (mean 44.25 years). Follow-up after implantation averaged 5.25 years (range 1-10 years), without complications. Review of the available literature on the subject yielded seven papers; a total of 26 procedures in 22 patients satisfied inclusion criteria. Pooled data from the present series and from the literature were analyzed; the global rate of complications was 16.6%, with 10% major (3 of 30 procedures) and 6.6% minor (2 of 30 procedures). The three reported cases of major complications appear unrelated to SOT. Major complications were found in one case over 16 procedures in pediatric patients (6.2%), while in adults the percentage raised to 14.3% (2/14 procedures). CONCLUSIONS Cochlear implantation is a safe and effective intervention, even during immunosuppressive therapy after organ transplantation.
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