Optimal INR level for warfarin therapy after mechanical mitral valve replacement

Data are scarce regarding the optimal international normalized ratio (INR) in Thai patients who require warfarin therapy after mechanical mitral valve replacement. Accordingly, the aim of this study was to identify the optimal INR level for warfarin therapy after mechanical mitral valve replacement in Thai patients. This is a retrospective cohort study design. We retrospectively reviewed the medical records of mechanical mitral valve replacement...