Abstract
About 5 % of cardiotomy patients cannot be weaned from cardiopulmonary bypass (CPB) following open heart operation.[1] These patients demonstrate profound heart failure which will, in most instances, respond to conventional therapy consisting of volume loading, inotropic support, and intra-aortic balloon (IAB) counterpulsation. One-quarter of all individuals with postcardiotomy cardiogenic shock do not respond to “conventional” therapy and require a more effective form of temporary circulatory support.[1] Pulsatile ventricular assist devices provide such support by reducing pressure work during systole, thereby decreasing myocardial oxygen consumption. In addition, a left ventricular assist device (LVAD) can pump enough blood to maintain adequate systemic perfusion and coronary blood flow, thereby providing time for the metabolic recovery of injured myocardium. A right ventricular assist device (RVAD) serves to decompress the right heart, maintain flow through the pulmonary vasculature, and volume load the left ventricle.
The authors gratefully acknowledge the assistance of Wayne E. Richenbacher, James H. Donachy, Gerson Rosenberg, Donald L. Landis, William J. Weiss, Paul E. Beard, Lynford T. Reichert, George Felder, James H. Donachy, Jr., G. Allen Prophet and Kay Holtzman, and the secretarial assistance of Sharon Smith.
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© 1986 Science Press, Beijing and Martinus Nijhoff Publishers, Dordrecht
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Pierce, W.S., Waldhausen, J.A. (1986). Postoperative Circulatory Support with a Pulsatile Assist Pump. In: Wu, Y., Peters, R.M. (eds) International Practice in Cardiothoracic Surgery. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4259-2_20
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DOI: https://doi.org/10.1007/978-94-009-4259-2_20
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