Zhiyu Qiao

Early postoperative prediction of gastrointestinal bleeding after surgery for acute type A aortic dissection: a five-variable logistic regression model benchmarked against machine learning

Gastrointestinal bleeding is a clinically important complication after emergency surgery for acute type A aortic dissection. Dedicated postoperative risk-stratification tools for this high-risk population remain limited. We aimed to develop and internally validate an early postop...