Heart function measurement to predict heart-lung machine weaning difficulty

This study is testing whether a specialized heart ultrasound measurement called global longitudinal strain (GLS) can predict which heart surgery patients will struggle to come off the heart-lung machine during their operation. Researchers will measure GLS before surgery and track how well patients do during and after their procedure. The goal is to help doctors identify high-risk patients earlier and prepare better support during surgery.

Difficulty separating from the heart-lung machine during cardiac surgery is a serious complication that increases hospital risks and recovery time. Current standard heart measurements sometimes miss early heart problems, so doctors need a better tool to predict which patients may have trouble—this measurement may be more sensitive and accurate.