Vorhofflimmern bei gleichzeitig höhergradiger Mitralklappeninsuffizienz

The primary therapeutic approach for severe secondary mitral regurgitation (MR) in combination with atrial fibrillation is often not clear.

To create a therapeutic guideline for daily clinical practice based on a case report as well as basic literature.

If a functional component is suspected, restoration of sinus rhythm may lead to a significant improvement in MR. The extent of the improvement and the time required to achieve this improvement are often difficult to predict.

The involvement of an electrophysiologist is recommended in order to assess the likelihood of successful long-term rhythm control aimed at improving MR. In unclear cases, cardioversion combined with short-term administration of antiarrhythmic medication may be useful to demonstrate potential improvement of MR in sinus rhythm.