Comparing Traditional Risk Scores and an AI-Based Multimodal Model for Predicting Cardiovascular Events After Gastrointestinal Surgery

Recruiting now

Conditions studied: Postoperative Complications, Cardiovascular Diseases, Digestive System Surgical Procedures

In brief

The goal of this observational study is to develop and evaluate an artificial intelligence (AI)-based multimodal model for predicting major cardiovascular events within 30 days after gastrointestinal surgery in adults at Bach Mai Hospital. The study will also compare the predictive performance of this AI-based model with commonly used traditional risk scores. The main questions it aims to answer are: Can an AI-based multimodal model predict major cardiovascular events within 30 days after gastrointestinal surgery? Does the AI-based model show better predictive performance than the Revised Cardiac Risk Index (RCRI), the American College of Surgeons National Surgical Quality Improvement Program Myocardial Infarction or Cardiac Arrest calculator (ACS NSQIP MICA), and the ACS NSQIP Surgical Risk Calculator (ACS NSQIP SRC)? Researchers will compare the AI-based multimodal model with traditional risk scores using measures of predictive performance, including discrimination, calibration, net reclassification improvement, and integrated discrimination improvement. Participants will be adults undergoing gastrointestinal surgery. Researchers will review medical record data from patients treated in 2025 and will also collect the same types of clinical data prospectively in 2026. The clinical outcome being predicted is the occurrence of major cardiovascular events within 30 days after surgery. The study will not change routine clinical care.

Key facts

Study ID

NCT07539532

Run by

Bach Mai Hospital

People needed

5000

Starts

2026-01-01

Expected to finish

2026-07-31

Last updated by the study team

2026-04-20

Who can join

Age: 16 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Adults aged 18 years or older.
• Undergoing gastrointestinal surgery at Bach Mai Hospital between January 2025 and December 2026.
• Available preoperative, intraoperative, and postoperative data sufficient for analysis.

You may not qualify if…

• Death within 24 hours after surgery due to a clearly non-cardiovascular cause.
• Incomplete data required for analysis.

Where it is running

• Bach Mai hospital — Hà Nội, Vietnam (enrolling)

Full record on ClinicalTrials.gov

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