Prognostic Implications and Predictors of Mitral Regurgitancy Reduction After Transcatheter Aortic Valve Implantation.

: Mitral regurgitation (MR) is a common condition observed in patients undergoing transcatheter aortic valve implantation (TAVI) for the treatment of aortic stenosis (AS). However, the impact of TAVI on MR outcomes and the factors predicting MR improvement remains uncertain. Understanding these predictors can enhance patient management and guide clinical decisions.

Thiol/Disulfide Homeostasis: A New Oxidative Marker in Heart Failure Patients with Preserved Ejection Fraction.

Background: It is suggested that myocardial dysfunction in heart failure patients may result from increased oxidative stress-related membrane changes. Thiol/disulfide homeostasis is a new oxidative stress indicator. The aim of this study was to evaluate serum thiol levels and thiol/disulfide homeostasis in patients with heart failure with preserved ejection fraction (HFpEF).