Minimally invasive direct cardiac massage and defibrillation.

Abstract

Direct massage of the heart may be performed using a specifically designed device inserted via a limited thoracic incision. The technique is simple to perform and has been shown in experimental studies to be physiologically similar to formal open-chest cardiac massage. Preliminary human studies have been encouraging and pre-hospital and in-hospital studies are in progress. Modification of the device allows combined epicardial-transthoracic defibrillation. Energy requirements for successful defibrillation using this method are considerably lower than standard external defibrillation.