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Clinical Trial Summary

Perioperative right ventricular (RV) function is an important determinant of postoperative outcomes after cardiac surgery. Perioperative RV dysfunction increases the need for perioperative inotropic support, prolongs intensive care unit stay and increases in-hospital mortality, in this study, we aim to investigate the effect of the preoperative administration of levosimendan on the outcome of patients with compromised right ventricular function undergoing cardiac surgery


Clinical Trial Description

Perioperative right ventricular (RV) function is an important determinant of postoperative outcomes following cardiac surgery. Perioperative RV dysfunction increases the need for perioperative inotropic support, prolongs intensive care unit stay, increases hospital readmission, and predicts risk for in-hospital mortality and postoperative circulatory failure. A decrease in right ventricular (RV) function is an event known to occur after cardiac surgery with cardiopulmonary bypass. Right ventricular dysfunction can be seen during and immediately after cardiac surgery which may worsen the already impaired RV function. Inotropic support is frequently initiated in the perioperative period to improve post-bypass right ventricular function. However, inotropes include the potential risk of increased myocardial oxygen consumption, which can result in cardiac ischemia, with subsequent damage to hibernating but viable myocardium, and arrhythmias. This has prompted an ongoing debate on the potential harm associated with inotropic therapy in cardiac surgery. Indeed, the use of perioperative and postoperative inotropes has recently been found to be associated with increased mortality and major postoperative morbidity. Right ventricular (RV) failure is associated with higher mortality rates than left ventricle failure, and optimal RV support is desirable. Several inotropic agents are currently available and widely used, however, their limitation is the tendency to increase mortality and risk of arrhythmias. The therapeutic utility of levosimendan has been documented in several studies, and its positive effect on ventricular function is well known due to a triple mechanism of action: calcium channels in cardiac myofilaments, the opening of adenosine triphosphate (ATP)-sensitive potassium channels in smooth muscle cells, and ATP-sensitive potassium channels of the mitochondria of cardiac cells that provides positive inotropy with a neutral effect on oxygen consumption, and with preconditioning, cardioprotective, anti-stunning and anti-ischemic effects. However, only a few studies have evaluated the effects of levosimendan on RV function. In this study, we aimed to investigate the effects of levosimendan on RV function in patients during open-heart surgery with cardiopulmonary bypass. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05063370
Study type Interventional
Source Ain Shams University
Contact
Status Active, not recruiting
Phase Phase 2
Start date August 18, 2021
Completion date January 1, 2022

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