Clinical experience with a new pulsatile assist device (PAD) during open-heart surgery.

摘要: Until now, it has not been possible to routinely use counterpulsation during open-heart surgery. A new pulsatile assist device (PAD®) developed convert roller pump flow in a simple fashion. In addition, the PADr can be used as an arterial counterpulsator before and after cardiopulmonary bypass (CPB). The PAD® is inserted line close aortic root. The consists of flexible, valveless balloon through which blood flows. contained within rigid plastic housing connected standard intra-aortic unit, thereby enabling blood-filled squeezed. The was employed 400 adult patients undergoing surgery for coronary artery and/or valvular heart disease from 1975 1978. Seventy-two percent these were categorized New York Heart Association (NYHA) Class III or IV, had ejection fractions less than 0.3. functioned hemodynamically effective CPB. Urinary outputs CPB more doubled on when compared control group. CPB, graft increased average 21.4% with PAD®. Free plasma hemoglobin levels elevated. Only eight (2%) perioperative myocardial infarction. Six treated pumping (IABP) five survived. Total mortality this series (2%). It suggested that reliable both intraoperative creation More significantly, may decrease incidence infarction need postoperative IABP.