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Background <p>Cochlear implants (CIs) have made it possible to significantly improve hearing in people with profound hearing loss. Although, cochlear implants are considered a safe procedure, this minimally invasive surgery has an overall complication rate of 12.5%. With Gusher (cerebrospinal fluid outflow) considered a common intraoperative complication of cochlear implants.</p> Methods <p>In this retrospective study, clinical files of patients with severe to profound sensorineural hearing loss who had undergone cochlear implantation were retrospectively reviewed. We calculated the incidence and risk factors of gusher and management options used . Statistical analysis included non-parametric tests and multivariate ordinal logistic regression to explore predictors of CSF leak intensity.</p> Results <p>1050 patients with profound hearing loss who underwent CI, 21 of whom had an intraoperative cerebrospinal fluid (CSF) leak, i.e. 2%, with a mean age of 3.5 years, and a sex ratio of 0.62, i.e. 62% female and 38% male. 43% of patients with gusher had structural abnormalities on their CT scan. Dilatation of the vestibule and vestibular aqueduct, as well as Mondini dysplasia, were the most common anomalies in Gusher patients. Younger implantation age was the only factor associated with higher CSF leak intensity in univariate analysis, but no independent predictors were identified in multivariate analysis.</p> Conclusions <p>Advancements in surgical techniques, radiological assessments, and technological innovation have significantly reduced cochlear implant–related complications, leading to a decreased risk of cerebrospinal fluid leakage incidents.</p>

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CSF gushers in cochlear implantation: surgical planning and management

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月19日

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  • Amal Hajjij,
  • Hiba El Hani,
  • Abderrahim Bourial,
  • Khadija El Bouhmadi,
  • Sara Benchikh,
  • Said Anajar,
  • Amal Rami,
  • Nadia Moussali,
  • Khalid Snoussi

摘要

Background

Cochlear implants (CIs) have made it possible to significantly improve hearing in people with profound hearing loss. Although, cochlear implants are considered a safe procedure, this minimally invasive surgery has an overall complication rate of 12.5%. With Gusher (cerebrospinal fluid outflow) considered a common intraoperative complication of cochlear implants.

Methods

In this retrospective study, clinical files of patients with severe to profound sensorineural hearing loss who had undergone cochlear implantation were retrospectively reviewed. We calculated the incidence and risk factors of gusher and management options used . Statistical analysis included non-parametric tests and multivariate ordinal logistic regression to explore predictors of CSF leak intensity.

Results

1050 patients with profound hearing loss who underwent CI, 21 of whom had an intraoperative cerebrospinal fluid (CSF) leak, i.e. 2%, with a mean age of 3.5 years, and a sex ratio of 0.62, i.e. 62% female and 38% male. 43% of patients with gusher had structural abnormalities on their CT scan. Dilatation of the vestibule and vestibular aqueduct, as well as Mondini dysplasia, were the most common anomalies in Gusher patients. Younger implantation age was the only factor associated with higher CSF leak intensity in univariate analysis, but no independent predictors were identified in multivariate analysis.

Conclusions

Advancements in surgical techniques, radiological assessments, and technological innovation have significantly reduced cochlear implant–related complications, leading to a decreased risk of cerebrospinal fluid leakage incidents.