Performance of EuroSCORE II and Society of Thoracic Surgeons risk scores in elderly patients undergoing aortic valve replacement surgery.

Background: In cardiac surgery, risk is estimated with models such as EuroSCORE II and the Society of Thoracic Surgeons (STS) score. Performance of these scores may vary across various patient age ranges.

Aim: To assess the effect of patient age on performance of the EuroSCORE II and STS scores, regarding postoperative mortality after surgical aortic valve replacement.