Improve synchrony

Cardiac resynchronization therapy (CRT) corrects this problem. It aims to improve the synchrony of the left and right lower chambers of the heart. A biventricular pacemaker, i.e. one that stimulates both ventricles, is implanted for this purpose.

This does not have two electrodes like a conventional pacemaker, but three. The additional electrode is inserted into a coronary vein in front of the left ventricle. Alternatively, it can be inserted via a thoracoscopic approach, a minimal incision in the chest.

Thanks to this third electrode, it is possible to stimulate both ventricles without interruption. A hospital stay of two to three days is required for the procedure.

It is estimated that less than half of all patients who would be eligible for resynchronization therapy are actually treated accordingly.