AI Article Synopsis
- The study explores the connection between preoperative radiological factors and the visibility of the round window membrane (RWM) during cochlear implant surgeries.
- The research involved 31 young patients with severe hearing loss, analyzing CT scans for facial nerve positioning, recess width, and RWM visibility.
- Results indicated that facial nerve location significantly influenced RWM visibility, while recess width did not; thus, predicting RWM visibility preoperatively is important for successful surgeries.
Article Abstract
Purpose: The round window approach has become the most preferred route for electrode insertion in cochlear implant surgery; however, it is not possible at times due to difficult round window membrane (RWM) visibility. Our study aims to investigate the relationship between preoperative radiological parameters and the surgical visibility of the RWM in Cochlear implant patients.
Methodology: A prospective cross-sectional study of 31 patients, age < 6 years, with bilateral severe to profound sensorineural hearing loss was conducted at a tertiary care hospital. The preoperative HRCT temporal bone scan was studied, and the parameters evaluated were facial nerve location, facial recess width, and RWM visibility prediction. All patients were operated on via the posterior tympanotomy. The surgical RWM visibility was done after optimal drilling of the posterior tympanotomy recess. The relationship between the radiological parameters and surgical visibility of RWM was evaluated.
Results: The difference in the facial nerve location as per the type of RWM was found to be significant (p value < 0.05). However, the facial recess width was not significantly associated with RWM visibility. The radiological prediction of RWM visibility by tracing the prediction line over RWM was significantly associated with intraoperative RWM visibility.
Conclusion: The goal to look for preoperative scans is to predict the ease or difficulty of RWM visibility during surgery. The difficult visualization of the RWM, can result in dire intraoperative consequences. A comprehensive understanding of preoperative radiological parameters, coupled with meticulous surgical planning, is crucial to address these challenges effectively by focusing on enhancing RWM visualization.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10908965 | PMC |
| http://dx.doi.org/10.1007/s12070-023-04280-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Middle ear biofilm and sudden deafness - a light and transmission electron microscopy study.
Front Neurol
December 2024
Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, Uppsala University, Uppsala, Sweden.
Background: There still exists controversy about whether the healthy human middle ear mucosa is sterile or if it may harbor a diverse microbiome. Considering the delicacy of the human round window membrane (RWM), different mechanisms may exist for avoiding inner ear pathogen invasion causing sensorineural deafness. We re-analyzed archival human RWMs using light and transmission electron microscopy after decalcification to determine if bacteria are present in clinically normal human middle ears.
View Article and Find Full Text PDFCharacterization of Tip Fold-Over Using Fluoroscopy and Intracochlear Pressure in Cadaver Specimens.
Laryngoscope
December 2024
Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado, U.S.A.
Objectives: Cochlear implant array malpositioning is associated with impaired speech perception, vertigo, and facial nerve stimulation. Tip fold-over is a subset of malpositioning that occurs more often with perimodiolar electrodes, but historically it has not been characterized due to lack of knowledge regarding electrode movements of the electrode within the cochlea. The aim of this study was to characterize the mechanics of tip fold-over events and their associated insertion pressure profiles.
View Article and Find Full Text PDFRadio-clinical assessment of crista fenestra during pediatric cochlear implantation.
Int J Pediatr Otorhinolaryngol
December 2024
Otorhinolaryngology Department, Faculty of Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt.
Objectives: This study aimed to assess the ability of preoperative computed tomography (CT) to predict the crista fenestra (CF) type during cochlear implantation and correlate these types with intraoperative findings. This may allow for precise preoperative planning with better surgical outcomes.
Study Design: A prospective observational study.
AAV-regulated overexpression promotes hair cell regeneration.
Mol Ther Nucleic Acids
December 2024
State Key Laboratory of Digital Medical Engineering, Department of Otolaryngology Head and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology, School of Medicine, Advanced Institute for Life and Health, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing 210096, China.
Inner ear hair cell (HC) damage is irreversible in mammals, but it has been shown that supporting cells (SCs) have the potential to differentiate into HCs. , a serine protease inhibitor, encodes protease nexin 1, and this has been suggested to be a factor that promotes HC regeneration. In this study, we overexpressed in inner ear SCs cultured in two- and three-dimensional systems using the adeno-associated virus-inner ear (AAV-ie) vector, which promoted organoid expansion and HC differentiation.
View Article and Find Full Text PDFRound Window Accessibility Prediction in Cochlear Implant Surgery.
J Int Adv Otol
November 2024
Department of ENT Head and Neck Surgery, Faculty of Medicine and Pharmacy of Marrakech, Cadi Ayyad University, University Hospital Center Mohammed VI, Marrakech, Morocco.
Background: Clear identification of the round window (RW) through the facial recess is a key surgical step for successful cochlear implantation (CI) surgery, which may be very challenging in some cases. Objective is to predict round window (RW) accessibility during CI surgery using high-resolution computed tomography (HRCT).
Methods: We retrospectively reviewed preoperative HRCT scans of 142 patients who underwent CI surgery via the standard posterior tympanotomy approach at our ENT Head and Neck Surgery department.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!