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Novel and Innovative Hybrid Technique for Type A Aortic Dissection
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Novel and Innovative Hybrid Technique for Type A Aortic Dissection

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Development of a scoring system for the involvement of supra-aortic vessel in patients with type A aortic dissection

Peiquan Li1, Shaopeng Zhang2, Chenyu Zhang1

  • 1Department of Cardiovascular Surgery, Tianjin Medical University, Tianjin, China.

Journal of Thoracic Disease
|February 9, 2026
PubMed

Insights

A new scoring system helps predict stroke risk after acute type A aortic dissection (ATAAD) surgery. This tool also identifies patients at higher risk for death and delayed awakening post-operation.

Area of Science:

  • Cardiovascular Surgery
  • Vascular Surgery
  • Neurosurgery

Background:

  • Postoperative stroke is a severe complication in acute type A aortic dissection (ATAAD) patients.
  • Existing classification systems may not fully capture stroke risk.
  • A novel scoring system is needed to improve risk stratification.

Purpose of the Study:

  • Develop and validate a new scoring system for predicting postoperative stroke in ATAAD.
  • Evaluate the scoring system's association with other adverse outcomes like death and delayed awakening.
  • Supplement existing classification systems for enhanced risk assessment.

Main Methods:

  • A scoring system was developed based on the degree of involvement of major arteries (IA, LCCA, LSA, RCCA).
  • A grid search and bootstrap method were used to determine coefficients and assess performance.
  • Area Under the Curve (AUC) and Odds Ratios (OR) were calculated to evaluate associations with outcomes.

Main Results:

  • The scoring system demonstrated good predictive performance with an AUC of 0.811.
  • An optimal cutoff score of 15 was identified, significantly associated with increased stroke risk (OR: 10.13).
  • The score also predicted postoperative death and delayed awakening, with adjusted ORs of 13.30 for stroke.

Conclusions:

  • The novel scoring system effectively predicts postoperative stroke risk in ATAAD patients.
  • The system offers additional predictive value for mortality and delayed awakening.
  • This tool can aid in refining risk stratification and patient management strategies.
Abstract

Keywords:
Aortic dissectionscoring systemstrokesupra-arch vessels

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