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  • Title: Fully endoscopic vascular decompression of the trigeminal nerve.
    Author: Jarrahy R, Eby JB, Cha ST, Shahinian HK.
    Journal: Minim Invasive Neurosurg; 2002 Mar; 45(1):32-5. PubMed ID: 11932822.
    Abstract:
    Microvascular decompression of the trigeminal nerve is an accepted and effective means of treating patients with trigeminal neuralgia in whom compression of the nerve by a vascular structure is implicated in the pathogenesis of the disease. The current standard technique uses the binocular operating microscope for all intra-operative visualization. Posterior fossa endoscopy has demonstrated that the endoscope provides more comprehensive views of the anatomy of the cerebellopontine angle than does the operating microscope. To date, endoscopy has only been used to supplement microscopy in cranial nerve decompression surgery. In this report, we describe our completely endoscopic surgical technique as we present the case of a patient with trigeminal neuralgia who underwent successful vascular decompression by this approach. Using this technique the offending vessel was separated from the nerve with minimal brain retraction or dissection of surrounding structures. This report represents the first documented case where the endoscope was used as the exclusive imaging modality for decompression of the trigeminal nerve. From our experience we conclude that the endoscope's superior visualization more accurately identifies neurovascular conflicts, and provides a comprehensive evaluation of the completeness of the decompression. Additionally, this new method minimizes the risks of brain retraction and extensive dissection often required for microscopic exposure. From this study we conclude that completely endoscopic vascular decompression represents the next step forward in the safe and effective surgical treatment of trigeminal neuralgia.
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