Tiril Sandel1, Per Kristian Eide. 1. Department of Neurosurgery, Oslo University Hospital - Rikshospitalet, Pb 4950, Nydalen, 0424, Oslo, Norway.
Abstract
BACKGROUND: Microvascular decompression (MVD) is currently used in several centres for the treatment of trigeminal neuralgia (TN) and hemifacial spasms (HFS). How long-term results relate to the preoperative symptoms still needs to be documented. The primary aim of this study was to assess long-term results of MVD for TN and HFS, as related to the types of preoperative symptoms. METHODS: We performed a retrospective study including all first-time MVDs for TN and HFS done during the 11-year period (1999-2009) in the Department of Neurosurgery, The National Hospital (Rikshospitalet), Oslo. The patients were categorized depending on the pre-operative symptomatology. RESULTS: The study population includes 303 first-time procedures performed by the senior author (PKE), 243 TN patients (65 % TN without constant pain and 35 % TN with constant pain) and 60 HFS patients (95 % typical HFS and 5 % atypical HFS). The patients were followed for a mean 71 months (range, 14-147). In both the TN and HFS patients, MVD caused lasting symptom relief in a high proportion of patients, including patients with atypical symptoms. CONCLUSION: After MVD for TN and HFS, regardless of preoperative symptoms, lasting relief is observed in a high proportion of patients, with a favorable complication profile.
BACKGROUND: Microvascular decompression (MVD) is currently used in several centres for the treatment of trigeminal neuralgia (TN) and hemifacial spasms (HFS). How long-term results relate to the preoperative symptoms still needs to be documented. The primary aim of this study was to assess long-term results of MVD for TN and HFS, as related to the types of preoperative symptoms. METHODS: We performed a retrospective study including all first-time MVDs for TN and HFS done during the 11-year period (1999-2009) in the Department of Neurosurgery, The National Hospital (Rikshospitalet), Oslo. The patients were categorized depending on the pre-operative symptomatology. RESULTS: The study population includes 303 first-time procedures performed by the senior author (PKE), 243 TN patients (65 % TN without constant pain and 35 % TN with constant pain) and 60 HFSpatients (95 % typical HFS and 5 % atypical HFS). The patients were followed for a mean 71 months (range, 14-147). In both the TN and HFSpatients, MVD caused lasting symptom relief in a high proportion of patients, including patients with atypical symptoms. CONCLUSION: After MVD for TN and HFS, regardless of preoperative symptoms, lasting relief is observed in a high proportion of patients, with a favorable complication profile.
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