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Updated: Apr 8, 2026
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Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
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A Perforating Artery Compressing the Nerve Rootlet and Causing Glossopharyngeal Neuralgia
Naokado Ikeda1, Hiroki Toda, Misaki Yamamoto
1*Departments of Neurosurgery and ‡Otolaryngology, Tazuke Kofukai Medical Research Institute and Kitano Hospital, Osaka, Japan.
Neurosurgery
|June 24, 2015
Summary
Mobilizing a perforating artery effectively treats glossopharyngeal neuralgia (GPN) caused by rootlet compression. This surgical option provides complete pain relief without additional rhizotomy, offering a safe alternative for GPN patients.
Area of Science:
- Neurosurgery
- Neurology
- Vascular Surgery
Background:
- Glossopharyngeal neuralgia (GPN) surgical treatment selection depends on identifying compressing arteries.
- Perforating arteries are an uncommon cause of GPN, with optimal surgical management unclear.
- Microvascular decompression is a primary surgical approach for GPN.
Observation:
- Two GPN patients presented with a perforating artery compressing the glossopharyngeal nerve rootlet.
- The perforating artery caused visible indentation and discoloration of the nerve rootlet.
- Mobilizing the perforating artery alone resolved GPN symptoms in these cases.
Findings:
- Microvascular decompression was performed on 12 GPN patients.
- Eleven patients exhibited neurovascular compression of the glossopharyngeal nerve.
- Mobilizing a compressing perforating artery, without rhizotomy, led to complete pain relief and medication cessation in two patients.
Implications:
- Perforating arteries, even small ones, can cause GPN through rootlet compression.
- Mobilization of a perforating artery is a viable and effective surgical treatment for GPN.
- This approach avoids the need for rhizotomy, reducing potential complications.
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