Dandy's vein decompression for trigeminal neuralgia: A rare venous conflict causing intractable facial pain.

Surgical neurology international Pub Date : 2025-07-18 eCollection Date: 2025-01-01 DOI:10.25259/SNI_372_2025

Md Moshiur Rahman, Robert Ahmed Khan, Muhtamim Chowdhury, Riad Habib, Md Mahbub Hasan, Md Ruhul Kuddus

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Abstract

Background: Trigeminal neuralgia (TN) is predominantly caused by arterial compression of the trigeminal nerve; however, venous conflicts, particularly involving Dandy's vein and the superior petrosal sinus (SPS), represent an uncommon but significant etiology.

Case description: We report a case of a 40-year-old female suffering from debilitating right-sided facial pain due to a rare "scissor effect" produced by the superior petrosal sinus and Dandy's vein (vein of the cerebellomesencephalic fissure) compressing the trigeminal nerve. Surgical decompression was performed by interposing autologous skeletal muscle wrapped with Surgicel between the conflicting venous structures and the nerve. The patient achieved complete pain relief without neurological deficits.

Conclusion: This case underscores the importance of recognizing venous causes of TN and highlights the effectiveness of Dandy's vein decompression.

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丹迪静脉减压治疗三叉神经痛：一种罕见的静脉冲突导致难治性面部疼痛。

背景：三叉神经痛（TN）主要由动脉压迫三叉神经引起；然而，静脉冲突，特别是涉及丹迪静脉和岩上窦（SPS），是一种罕见但重要的病因。病例描述：我们报告一位40岁的女性，由于岩上窦和丹迪静脉（小脑内脑裂静脉）压迫三叉神经而产生罕见的“剪刀效应”，导致右侧面部疼痛。手术减压是通过将自体骨骼肌包裹在冲突的静脉结构和神经之间进行的。患者疼痛完全缓解，无神经功能缺损。结论：本病例强调了认识静脉原因的重要性，并强调了Dandy静脉减压术的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Surgical neurology international

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