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Updated: Aug 11, 2025

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
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Functional outcome after pediatric cerebral cavernous malformation surgery.

Laurèl Rauschenbach1,2, Alejandro N Santos3,4, Thiemo F Dinger3,4

  • 1Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany. laurel.rauschenbach@uk-essen.de.

Scientific Reports
|February 9, 2023
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Summary

Surgical resection of pediatric cerebral cavernous malformations (CCM) is generally safe, with most patients showing improved functional outcomes. However, brainstem CCMs present a high risk for postoperative complications, requiring careful surgical consideration.

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Area of Science:

  • Neurosurgery
  • Pediatric Neurology
  • Vascular Malformations

Background:

  • Cerebral cavernous malformations (CCM) are vascular anomalies that can cause neurological symptoms in children.
  • Surgical resection is a treatment option, but functional outcomes and predictors of complications require further investigation in pediatric populations.

Purpose of the Study:

  • To evaluate the functional outcomes after surgical resection of pediatric cerebral cavernous malformations (CCM).
  • To identify predictors of postoperative functional deterioration in pediatric CCM patients.

Main Methods:

  • Retrospective analysis of pediatric patients (≤18 years) with CCM treated between 2003-2021.
  • Functional outcome assessed using the modified Rankin Scale (mRS) at admission, discharge, and last follow-up.
  • Logistic regression analysis used to identify predictors of postoperative deterioration.

Main Results:

  • 49 pediatric patients included; 89.8% achieved complete resection.
  • Mean mRS score improved from 1.6 at admission to 0.9 at last follow-up.
  • Brainstem localization was a significant predictor of postoperative functional deterioration (aOR=53.45, p=0.014).

Conclusions:

  • Surgical CCM removal in children is generally safe and effective, leading to favorable functional outcomes for most.
  • Brainstem localization is associated with a high risk of morbidity, necessitating careful consideration of surgical indications.
  • Second-look surgery for CCM remnants may be a safe and beneficial option.