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  • Title: Re-Exploration of Microvascular Decompression in Recurrent Trigeminal Neuralgia and Intraoperative Management Options.
    Author: Hussain MA, Konteas A, Sunderland G, Franceschini P, Byrne P, Osman-Farah J, Eldridge P.
    Journal: World Neurosurg; 2018 Sep; 117():e67-e74. PubMed ID: 29857210.
    Abstract:
    BACKGROUND: Trigeminal neuralgia (TGN) is a debilitating disorder, and in patients for whom medical management is not sufficient, there are several therapeutic options. Microvascular decompression (MVD) for TGN has been shown to be highly effective; however, pain does recur after MVD in some patients. Therapeutic options for recurrent TGN are the same as those for primary TGN, including re-exploration of MVD (re-MVD). In this study we review our practice of re-MVD, comparing it with alternative options and assessing its safety and efficacy. METHODS: Retrospective analysis of prospectively collected data of patients undergoing re-MVD between 2007 and 2016. RESULTS: Thirty-two patients underwent re-MVD, all with a Barrow Neurosurgical Institute Pain Index (BNPI) of IV or V. Postoperatively, 87% of patients reported an improvement in their BNPI to III or better, with 50% being BNPI 1 or 2. Eleven patients without distortion or vascular conflict at the time of re-exploration underwent intraoperative neurolysis, and 90% reported improvement in their BNPI. Kaplan-Meier analysis showed a median pain-free period of 36 months after re-MVD. There were no significant complications. CONCLUSIONS: Re-MVD is a safe and effective method of treating recurrent TGN. Intraoperative neurolysis is an important tool in re-exploration and should be considered when there is no ongoing compression or distortion of the trigeminal nerve.
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