Machine learning-based prediction of ischemic cardio-cerebrovascular events after endovascular or microsurgical treatment of unruptured intracranial aneurysms and risk stratification by the early post-treatment triglyceride-glucose index - Report - MDSpire

Machine learning-based prediction of ischemic cardio-cerebrovascular events after endovascular or microsurgical treatment of unruptured intracranial aneurysms and risk stratification by the early post-treatment triglyceride-glucose index

  • By

  • Yingchao He

  • Shuheng Chen

  • Deshan Liu

  • Zheng Zheng

  • Yongkun Li

  • Yinzhou Wang

  • May 13, 2026

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Clinical Report: Predicting Ischemic Cardio-Cerebrovascular Events Following Treatment of Unruptured Intracranial Aneurysms Using Machine Learning and Early Post-Treatment Triglyceride-Glucose Index for Risk Assessment

Overview

This study establishes a machine learning model to predict ischemic cardio-cerebrovascular events (ICCEs) within 6 months post-treatment for unruptured intracranial aneurysms (UIAs). The early post-treatment triglyceride-glucose (TyG) index is identified as a significant predictor of ICCEs.

Background

Ischemic cardio-cerebrovascular events (ICCEs) are serious complications following treatment for unruptured intracranial aneurysms (UIAs), with an incidence of 5-15%. Effective risk stratification tools are necessary to identify patients at elevated risk for these events post-treatment. Current guidelines primarily focus on rupture risk, leaving a gap in the assessment of ischemic risk.

Data Highlights

ParameterValue
Patients with ICCEs240 (12.28%)
Endovascular therapy patients1,343
Microsurgical intervention patients611
CatBoost model accuracy0.875
AUROC0.945 (95% CI, 0.927–0.963)
HR for TyG index increase2.61 (95% CI: 2.29–2.96, p < 0.001)

Key Findings

  • 240 out of 1,954 patients (12.28%) experienced ICCEs within 6 months post-treatment.
  • The CatBoost model achieved an accuracy of 0.875 and an AUROC of 0.945.
  • Every 1-unit increase in the TyG index correlated with a 2.61-fold increased risk of ICCEs.
  • The TyG index exhibited a nonlinear relationship with ICCEs, with a threshold effect at approximately TyG = 7.
  • Machine learning models, particularly CatBoost, outperformed traditional regression models in predicting ICCEs.

Clinical Implications

The early post-treatment TyG index can serve as a practical metabolic marker for assessing ischemic risk in patients with UIAs. Utilizing machine learning models may enhance the predictive accuracy for identifying patients at risk for ICCEs, allowing for more tailored perioperative management.

Conclusion

The study highlights the potential of machine learning and the TyG index in improving risk assessment for ischemic events following UIA treatment, emphasizing the need for advanced predictive tools in clinical practice.

References

  1. Frontiers in Endocrinology, 2026 -- Predicting mortality in non-traumatic intracerebral hemorrhage with glucose and lipid data
  2. Frontiers in Neurology, 2026 -- Development and internal validation of a machine learning model for predicting intracranial infection after spontaneous intracerebral hemorrhage: a two-center retrospective study
  3. Frontiers in Neurology, 2026 -- Machine learning model for unfavorable outcome prediction in neurosurgical patients: the potential role of liver function markers
  4. Link Between Triglyceride-Glucose Index and Acute Kidney Injury Risk in Patients with Aneurysmal Subarachnoid Hemorrhage
  5. Guidelines for the Management of Patients With Unruptured Intracranial Aneurysms: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association
  6. Initial Experience with the Pipeline Vantage Flow Diverter for Intracranial Aneurysms: A Systematic Review and Meta-Analysis - PubMed
  7. Machine Learning for Predicting Thromboembolic Events Following Flow Diverter Treatment of Intracranial Aneurysms: A Multicenter Retrospective Study - PubMed
  8. Guidelines for the Management of Patients With Unruptured Intracranial Aneurysms: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association
  9. Initial Experience with the Pipeline Vantage Flow Diverter for Intracranial Aneurysms: A Systematic Review and Meta-Analysis - PubMed
  10. Machine Learning for Predicting Thromboembolic Events Following Flow Diverter Treatment of Intracranial Aneurysms: A Multicenter Retrospective Study - PubMed

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