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Trigeminal neuralgia caused by venous compression.
Toshio Matsushima1, Phuong Huynh-Le, Masayuki Miyazono
1Department of Neurosurgery, Hamanomachi Hospital, Fukuoka, Japan.
Neurosurgery
|July 24, 2004
Summary
Venous compression, particularly by the transverse pontine vein, can cause trigeminal neuralgia. Surgical decompression of these veins effectively relieves pain, confirming veins as a cause of this condition.
Area of Science:
- Neurosurgery
- Neurology
Background:
- Trigeminal neuralgia is a debilitating condition often treated with microvascular decompression.
- The role of venous compression as a sole cause of trigeminal neuralgia requires further clarification.
Observation:
- In 7 of 121 patients undergoing microvascular decompression for trigeminal neuralgia, venous compression was the sole identified cause.
- The transverse pontine vein was the most common offending vein, located near Meckel's cave.
Findings:
- All patients with venous compression experienced complete pain relief post-surgery.
- A small number of patients developed transient facial numbness after the procedure.
Implications:
- This study confirms that venous compression can independently cause trigeminal neuralgia.
- Identifying and decompressing offending veins, especially the transverse pontine vein, is crucial for successful treatment.