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Microvascular decompression for trigeminal neuralgia caused by vertebrobasilar compression
M E Linskey1, H D Jho, P J Jannetta
1Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pennsylvania.
Journal of Neurosurgery
|July 1, 1994
Summary
Microvascular decompression effectively treats trigeminal neuralgia caused by vertebral or basilar artery compression. Patients experienced sustained pain relief, though some faced mild sensory or visual side effects.
Area of Science:
- Neurosurgery
- Neurology
Background:
- Trigeminal neuralgia (TN) is a debilitating neuropathic pain condition.
- Microvascular decompression (MVD) is a primary surgical treatment for TN.
- Vertebrobasilar artery (VA/BA) compression is a less common cause of TN.
Purpose of the Study:
- To evaluate the outcomes of MVD in patients with TN caused by VA or BA compression.
- To compare patient demographics and clinical features of this subgroup with other TN patients.
Main Methods:
- Retrospective analysis of 1404 TN patients undergoing MVD (1972-1993).
- Identified 31 patients with VA/BA compression.
- Compared characteristics and outcomes between the VA/BA compression subgroup and the remaining patients.
Main Results:
- The VA/BA compression subgroup was older, predominantly male, more likely to have left-sided TN, hypertension, and hemifacial spasm.
- All 31 patients achieved immediate pain relief post-MVD.
- Long-term pain relief was high (86% at 10 years).
- Mild trigeminal dysfunction (41%), diplopia (23%), and hearing loss (13%) were observed post-operatively.
Conclusions:
- MVD is highly effective for TN due to VA/BA compression.
- Patients with vertebrobasilar compression may have a higher risk of mild neurological deficits post-MVD.
- Informed consent should include potential risks like trigeminal dysfunction, diplopia, and hearing loss.