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Levosimendan for patients with impaired left ventricular function undergoing cardiac surgery.

Abstract
The efficacy of levosimendan treatment for a low cardiac output status following cardiac surgery has not been established. Here, we review our initial experiences of the perioperative use of levosimendan. This study is a retrospective uncontrolled trial. Nine patients who underwent cardiac surgery, and developed a low cardiac output status resistant to conventional inotropic support, were given levosimendan. The mean preoperative ejection fraction was 35.2+/-3.4%. All patients were on concomitant inotropic agents and had previously undergone intra-aortic balloon pumping. Cardiac index increased immediately from 2.14+/-0.33 l/min/m(2) at baseline to 2.41+/-0.31 (P=0.02) at 1 h, rising to 2.67+/-0.43 (P<0.001) at 4 h after the loading dose was started. Similarly, the systemic vascular resistance index decreased from 2350+/-525 dynes/s/cm(-5)/m(2) at baseline to 1774+/-360 (P=0.002) at 4 h. In the case of all but one of the patients, either the dose of the concomitant inotropic support or the balloon pumping could be weaned down within 24 h after completion of the levosimendan infusion. No withdrawal of levosimendan was required. Levosimendan could constitute a new therapeutic option for postoperative low cardiac output.
AuthorsYoshiyuki Tokuda, Peter W Grant, Hugh D Wolfenden, Con Manganas, William J Lyon, John S K Murala
JournalInteractive cardiovascular and thoracic surgery (Interact Cardiovasc Thorac Surg) Vol. 5 Issue 3 Pg. 322-6 (Jun 2006) ISSN: 1569-9285 [Electronic] England
PMID17670579 (Publication Type: Journal Article)

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