Published in:
01-04-2011 | Editorial
Levosimendan: from coronary care to intensive care?
Author:
Karen Stuart-Smith
Published in:
Intensive Care Medicine
|
Issue 4/2011
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Excerpt
Numerous multi-centre clinical trials have demonstrated that levosimendan is an effective agent in the management of decompensated heart failure [
1]. It has a novel pharmacological profile which makes it particularly suited to improving the performance of the decompensated heart [
2]. In the myofilament, levosimendan enhances the sensitivity of troponin C to calcium and stabilizes the Ca
2+-troponin C complex [
3]. The rate of formation of myosin actin cross bridges is increased, although the rate of dissociation of cross bridges is unaltered, so that there is a greater rate of force development during systole, while diastole is not impaired [
4,
5]. Increased contractility is not accompanied by increased cellular metabolism, so that myocardial oxygen consumption is not elevated [
1,
3]. There is no effect on heart rate. The inotropic properties of levosimendan are not compromised in the acidotic or hypoxic heart [
3]. …