An epicardial mapping electrode suitable for temporarily mapping and/or stimulating the left ventricle after a cardiac surgery. The epicardial mapping electrode comprising a flexible tube having a proximal and a distal end and a longitudinal structure therebetween. The tube has at least one lumen. A movable insulated electrode lead arranged inside the lumen, the lumen together with the electrode lead extends longitudinally through said longitudinal structure, the electrode lead has at its distal end an electrical pole. The flexible tube has along the electrode lead a number of openings facing the surface of the heart said openings providing contact between the myocardial tissue and the electrical pole.
