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The logistic European System for Cardiac Operative Risk Evaluation (LES) score and the Society of Thoracic Surgeons (STS) score are validated to predict 30-day outcomes following surgical aortic valve replacement (SAVR) with or without coronary artery bypass grafting. Their performance when applied to patients undergoing transcatheter aortic valve replacement (TAVR) is controversial.

journal of thoracic and cardiovascular surgery

The relative performance characteristics of the logistic European System for Cardiac Operative Risk Evaluation score and the Society of Thoracic Surgeons score in the Placement of Aortic Transcatheter Valves trial