关键词: Aseptic meningitis Chari type 1 Malformation Chiari Malformation surgery Duraplasty Meningism pediatrics

Mesh : Child Humans Decompression, Surgical / methods Treatment Outcome Retrospective Studies Meningism / complications Postoperative Complications / epidemiology Arnold-Chiari Malformation / surgery Cerebrospinal Fluid Rhinorrhea / surgery Dura Mater / surgery

来  源:   DOI:10.1016/j.neuchi.2023.101423

Abstract:
BACKGROUND: Increasing the posterior fossa volume is the mainstay of treatment for Chiari type 1 Malformation (C1M) and type 1.5 (C1.5M). Different options to restore CSF flow have been described but no consensus has been reached yet. Bony decompression of posterior cranial fossa with dural opening provides good results but at the price of complications such as pseudomeningocele and aseptic meningitis. A single center retrospective analysis was conducted to find any relationships between outcome and perioperative factors. As a second goal a specific analysis was conducted on the complications and their hypothetical causes.
METHODS: All the pediatric patients who underwent to posterior fossa bony decompression and dural opening for C1M or C1.5M in the period 2008-2020 were included in the study. A minimum period of three-months follow-up was considered among the inclusion criteria.
RESULTS: A population of fifty-three consecutive patients was collected. Pseudomeningocele and a mild meningeal irritation resulted the most frequent complications. Considering preoperative and intraoperative factors, the type of dural graft showed a relatively strong correlation (P<.01) with pseudomeningocele appearance and the development of meningism. In the latter case, a short course of steroids was the only treatment required to control symptoms.
CONCLUSIONS: Different factors could influence the outcome in Chiari Malformation surgery and eventually the development of complications. An adequate dural graft selection is of paramount importance when a dural opening for posterior fossa augmentation is planned. In case of mild meningeal irritation, a trial with short course steroids could avoid revision surgery.
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