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Published on: June 26, 2020
Neurologic complications after particle embolization of intracranial meningiomas
Martin Bendszus1, Camelia Maria Monoranu, Ansgar Schütz
1Department of Neuroradiology, University of Würzburg, Germany.
Background And Purpose:
Preoperative embolization of meningiomas is frequently used to facilitate surgery and to reduce intraoperative blood loss. The purpose of this study was to evaluate the frequency of procedure-related neurologic complications during and after particle embolization of intracranial meningiomas.
Methods:
Between 1996 and 2004, 185 consecutive patients underwent particle embolization of an intracranial meningioma. Devascularization was performed by means of superselective probing of the tumor-feeding vessels and ensuing free-flow embolization with spherical particles. All procedures were performed with systemic heparinization.
Results:
Six patients (3.2%) had ischemic events with neurologic deficit. Two had amaurosis, and four patients presented with hemiparesis. Hemorrhage occurred in six patients (3.2%). In five of these patients, rapid microsurgical tumor removal resulted in a favorable outcome without persistent neurologic deficit. In one patient, massive intratumoral, subarachnoid, and subdural hemorrhage was lethal.
Conclusion:
Particle embolization of meningiomas is associated with a substantial risk of ischemic and hemorrhagic events. The individual risk-to-benefit ratio of embolization should be thoroughly considered.
Insights
Particle embolization for brain tumors (meningiomas) carries risks of stroke and bleeding. Careful consideration of the benefits versus these potential complications is essential for patient care.
Area of Science:
- Neurosurgery
- Neuroradiology
- Vascular Interventional Radiology
Background:
- Preoperative embolization is a common procedure for meningiomas.
- It aims to simplify surgical removal and minimize blood loss during surgery.
Purpose of the Study:
- To determine the incidence of neurological complications associated with particle embolization of intracranial meningiomas.
- To assess complications occurring during and after the embolization procedure.
Main Methods:
- A retrospective analysis of 185 patients who underwent particle embolization for intracranial meningiomas between 1996 and 2004.
- Superselective catheterization of tumor-feeding arteries followed by embolization with spherical particles under systemic heparinization.
Main Results:
- A total of 6.4% of patients experienced procedure-related neurologic complications.
- Ischemic events (stroke) occurred in 3.2% of patients (2 with amaurosis, 4 with hemiparesis).
- Hemorrhagic complications also occurred in 3.2% of patients, with one fatality due to massive hemorrhage.
Conclusions:
- Particle embolization of meningiomas is linked to significant risks of both ischemic and hemorrhagic complications.
- The decision to proceed with embolization requires a thorough evaluation of the individual patient's risk-benefit profile.
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