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Reducing mortality in cardiac surgery with levosimendan: a meta-analysis of randomized controlled trials
Giovanni Landoni1, Anna Mizzi, Giuseppe Biondi-Zoccai
1Department of Cardiothoracic Anesthesia and Intensive Care, Università Vita-Salute San Raffaele, Istituto Scientifico San Raffaele, Via Olgettina 60, Milano 20132, Italy. landoni.giovanni@hsr.it
Insights
Levosimendan significantly reduced postoperative mortality in cardiac surgery patients. This drug demonstrates cardioprotective effects, suggesting potential benefits for surgical outcomes.
Area of Science:
- Cardiology
- Pharmacology
- Critical Care Medicine
Background:
- Cardiac surgery carries significant risks, including postoperative mortality and complications.
- Levosimendan is a medication used to improve cardiac contractility and reduce preload and afterload.
Purpose of the Study:
- To evaluate the association between levosimendan use and survival in patients undergoing cardiac surgery through a meta-analysis.
Main Methods:
- A meta-analysis of 10 randomized controlled studies involving 440 cardiac surgery patients.
- Searched BioMedCentral and PubMed for relevant studies comparing levosimendan to control groups.
- Primary endpoint was postoperative mortality.
Main Results:
- Levosimendan significantly reduced postoperative mortality (odds ratio = 0.35; p=0.003).
- Associated with reduced cardiac troponin release and atrial fibrillation.
- No significant differences observed in myocardial infarction, renal failure, or duration of ventilation/hospital stay.
Conclusions:
- Levosimendan exhibits cardioprotective effects, potentially lowering postoperative mortality in cardiac surgery.
- Further large-scale randomized controlled trials are recommended to confirm these findings.
Objectives:
The authors performed a meta-analysis to evaluate whether levosimendan is associated with improved survival in patients undergoing cardiac surgery.
Design:
A meta-analysis.
Setting:
Hospitals.
Participants:
A total of 440 patients from 10 randomized controlled studies were included in the analysis.
Interventions:
None. MEASURMENTS AND MAIN RESULTS: Four investigators independently searched BioMedCentral and PubMed. Inclusion criteria were random allocation to treatment, comparison of levosimendan versus control, and cardiac surgery patients. Exclusion criteria were duplicate publications, nonhuman experimental studies, and no mortality data. The primary endpoint was postoperative mortality. Levosimendan was associated with a significant reduction in postoperative mortality (11/235 [4.7%] in the levosimendan group v 26/205 [12.7%] in the control arm, odds ratio = 0.35 [0.18-0.71], p for effect = 0.003, p for heterogeneity = 0.22, I(2) = 27.4% with 440 patients included), cardiac troponin release, and atrial fibrillation. No difference was found in terms of myocardial infarction, acute renal failure, time on mechanical ventilation, intensive care unit, and hospital stay.
Conclusions:
Levosimendan has cardioprotective effects that could result in a reduced postoperative mortality. A large randomized controlled study is warranted in this setting.
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