Effect of preoperative non-dialysis-dependent renal dysfunction on isolated aortic and mitral valve surgery: A propensity score analysis

Preoperative renal dysfunction is associated with higher morbidity in both cohorts, and patients undergoing mitral valve surgery also experienced higher mortality. The impact of non-dialysis-dependent preoperative renal dysfunction appears to be more pronounced in patients undergoing mitral valve surgery, potentially owing to their relative intolerance to volume overload.