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Related Experiment Video

Updated: Dec 28, 2025

Microvascular Decompression: Salient Surgical Principles and Technical Nuances
10:35

Microvascular Decompression: Salient Surgical Principles and Technical Nuances

Published on: July 5, 2011

47.0K

Prognostic nomogram for microvascular decompression-treated trigeminal neuralgia.

Wen-Bo Zhang1, Ya-Ying Zeng2, Bo-Wen Chang1

  • 1Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.

Neurosurgical Review
|February 11, 2020
PubMed
Summary

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This study developed a prognostic nomogram to predict trigeminal neuralgia (TN) remission after microvascular decompression (MVD). The tool aids clinicians in assessing pain recurrence risk for better TN management.

Area of Science:

  • Neurosurgery
  • Medical Prognostics

Background:

  • Trigeminal neuralgia (TN) is a debilitating neuropathic pain condition.
  • Microvascular decompression (MVD) is a primary surgical treatment for TN, but prognostic factors for long-term outcomes require further elucidation.

Purpose of the Study:

  • To develop and validate an effective prognostic nomogram for predicting the 3-year remission rate in patients with TN undergoing MVD.
  • To identify key factors influencing the prognosis of MVD-treated TN.

Main Methods:

  • Retrospective cohort study of 1054 TN patients (845 development, 209 validation cohorts).
  • Multivariate Cox regression analysis to identify prognostic factors.
  • Concordance index (C-index) and calibration curves used to assess predictive accuracy and discriminative ability.
Keywords:
Microvascular decompressionNomogramPredictive modelRemission rateTrigeminal neuralgia

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Main Results:

  • Key prognostic factors identified: patient age, atypical pain, vascular compression type, number of offending vessels, and prior MVD surgery.
  • The nomogram demonstrated good predictive accuracy with a C-index of 0.767 in the development cohort and 0.749 in the validation cohort.

Conclusions:

  • A validated prognostic nomogram can effectively predict the 3-year remission rate after MVD for TN.
  • This tool can assist in clinical decision-making and patient counseling regarding pain recurrence after MVD treatment for TN.