Atrial functional mitral regurgitation: cardiac remodeling and outcome after mini-thoracotomy mitral valve surgery

The results of our small study showed that mini-thoracotomy valve surgery for AFMR is safe and effective. It improves functional class (NYHA) and results in reverse-remodeling of LA, regardless of the presence or absence of AF. A reduction in left ventricular volumes was also observed, although baseline volumes were still within normal limits, as an expression of reduction in left ventricular overload. Mitral insufficiency should be the primary target of treatment, while AF appears to be an epiphenomenon rather than a causal element of AFMR.