Related Experiment Video
Updated: Mar 30, 2026

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
Published on: May 28, 2019
Effects of liraglutide on left ventricular function in patients with ST-segment elevation myocardial infarction
Wei Ren Chen1, Shun Ying Hu1, Yun Dai Chen1
1Department of Cardiology, PLA General Hospital at Beijing, China.
Insights
Liraglutide treatment improved left ventricular ejection fraction in patients with ST-segment elevation myocardial infarction (STEMI) after primary percutaneous coronary intervention. This 7-day course also showed benefits in stress hyperglycemia and inflammation markers.
Area of Science:
- Cardiology
- Pharmacology
- Biochemistry
Background:
- Exenatide has demonstrated cardioprotective effects in ST-segment elevation myocardial infarction (STEMI).
- The impact of liraglutide, a glucagon-like peptide-1 analogue, on STEMI patients requires further investigation.
- Primary percutaneous coronary intervention is a standard treatment for STEMI.
Purpose of the Study:
- To evaluate the efficacy of liraglutide in improving left ventricular function in STEMI patients undergoing primary percutaneous coronary intervention.
- To assess the impact of liraglutide on cardiac function and related biomarkers post-STEMI.
- To determine if liraglutide offers benefits beyond standard reperfusion therapy.
Main Methods:
- A randomized controlled trial involving 92 STEMI patients, with 85 completing the study.
- Patients received either liraglutide or placebo for 7 days, initiated before intervention.
- Left ventricular function was assessed using transthoracic echocardiography at 3 months.
Main Results:
- Liraglutide significantly improved left ventricular ejection fraction by +4.1% at 3 months (P < .001).
- A trend towards reduced no-reflow was observed in the liraglutide group (7% vs. 15%, P = .20).
- Liraglutide demonstrated significant improvements in stress hyperglycemia and favorable changes in inflammation and endothelial function markers.
Conclusions:
- A short 7-day course of liraglutide is associated with a mild improvement in left ventricular ejection fraction at 3 months in STEMI patients.
- Liraglutide may offer additional benefits in managing hyperglycemia and improving vascular function post-STEMI.
- Further research is warranted to explore the long-term cardiovascular benefits of liraglutide in STEMI patients.
Background:
Several studies have shown that exenatide protects against ischemia-reperfusion injury and improves cardiac function in patients with acute ST-segment elevation myocardial infarction (STEMI). The effects of liraglutide, a glucagon-like peptide-1 analogue, on STEMI patients remain unclear. We planned to evaluate the effects of liraglutide on left ventricular function after primary percutaneous coronary intervention for STEMI.
Methods:
A total of 92 patients were randomized 1:1 to receive either liraglutide or placebo for 7 days. Study treatment was commenced 30 minutes before intervention (1.8 mg) and maintained for 7 days after the procedure (0.6 mg for 2 days, 1.2 mg for 2 days, followed by 1.8 mg for 3 days). Eighty-five patients completed the trial. Transthoracic echocardiography was used to assess left ventricular function.
Results:
At 3 months, the primary end point, a difference in change of left ventricular ejection fraction between the two groups was +4.1% (95% CI +1.1% to +6.9%) (P < .001). There was a tendency for a lower rate of no-reflow in liraglutide group that did not reach statistical significance (7% vs control group 15%, P = .20). Liraglutide could significantly improve stress hyperglycemia (P < .05). In addition, liraglutide elicited favorable changes in markers of inflammation and endothelial function.
Conclusion:
A short 7-day course of liraglutide in STEMI patients treated with primary percutaneous coronary intervention is associated with mild improvement in left ventricular ejection fraction at 3 months.
Related Concept Videos
Acute Coronary Syndrome III: Diagnostic Studies
Acute Coronary Syndrome I: Introduction
Cardiac Catheterization III: Left Heart Catheterization
Cardiac Catheterization I: Pre-Procedure Overview

