Interactive worksheet
STS-IE Surgical Risk Model Calculator
STS-IE Surgical Risk Model: Explanation and Clinical Context The STS-IE (Society of Thoracic Surgeons – Isolated Valve Surgery) Risk Model is a validated tool to predict postoperative mortality and major morbidity for patients undergoing isolated valve surgery. It uses patient-specific clinical variables including age, sex, previous cardiac surgery, NYHA functional class, left ventricular ejection fraction, diabetes,