Patterns Of Neurovascular Conflict In Trigeminal Neuralgia Patients - A Retrospective Clinical Study

Abstract

Introduction: Trigeminal neuralgia (TN), a debilitating facial pain syndrome, is often linked to neurovascular conflicts (NVCs) involving the trigeminal nerve and blood vessels. This study aimed to assess the prevalence and patterns of NVCs in TN patients using magnetic resonance imaging (MRI) data.

Objectives: (1) Determine the prevalence of NVCs in TN patients. (2) Identify the precise anatomical locations and specific neurovascular structures involved in NVCs. (3) Enhance understanding of TN pathophysiology and guide treatment decisions.

Methods: A retrospective analysis of medical records and MRI scans of 25 TN patients, with 7 confirmed NVC cases, was conducted. Data on age, sex, side of involvement, and NVC severity was collected and analyzed using SPSS software.

Results: NVCs were present in 28% of TN patients. The superior cerebellar artery was the most commonly implicated vessel (85.7%). NVCs were predominantly found at the root entry zone (REZ) of the trigeminal nerve (71.4%). Grade 2 (simple contact) NVCs were the most frequent (42.9%).

Conclusion: NVCs are relatively common in TN, primarily involving the REZ and superior cerebellar artery. This study provides valuable insights into the anatomical distribution and severity of NVCs in TN, potentially aiding diagnosis, treatment planning, and future therapeutic advancements.