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Updated: Jul 14, 2026

Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research
Published on: October 22, 2014
Effects of levosimendan on flow-mediated vasodilation and soluble adhesion molecules in patients with advanced
John T Parissis1, Apostolos Karavidas, Vassiliki Bistola
1Second Department of Cardiology, Attikon University Hospital, Rimini 1, 12461 Chaidari, Athens, Greece. jparissis@yahoo.com <jparissis@yahoo.com>
Insights
Levosimendan improved endothelial function and reduced adhesion molecules in advanced chronic heart failure (CHF) patients. This calcium sensitizer offers a potential treatment to mitigate CHF progression by enhancing vascular health.
Area of Science:
- Cardiology
- Vascular Biology
- Pharmacology
Background:
- Endothelial dysfunction is a key factor in chronic heart failure (CHF) progression.
- Elevated soluble adhesion molecules contribute to CHF pathophysiology.
- Targeting endothelial activation may offer therapeutic benefits in advanced CHF.
Purpose of the Study:
- To investigate the effect of levosimendan on endothelial function in advanced CHF patients.
- To assess whether levosimendan can reduce plasma levels of soluble adhesion molecules (sICAM-1 and sVCAM-1).
- To evaluate the potential of levosimendan in attenuating deleterious effects in advanced CHF.
Main Methods:
- Randomized controlled trial with 26 advanced CHF patients.
- Intervention: 24-hour infusion of levosimendan (n=17) or placebo (n=9).
- Outcome measures: Flow-mediated dilatation (FMD) for endothelial function, plasma sICAM-1 and sVCAM-1 levels assessed pre- and post-therapy.
Main Results:
- Levosimendan significantly improved FMD (p<0.05).
- Levosimendan treatment led to a significant reduction in plasma sICAM-1 and sVCAM-1 levels (p<0.05).
- No significant changes in FMD or adhesion molecules were observed in the placebo group.
Conclusions:
- Levosimendan demonstrates efficacy in improving endothelial function in advanced CHF.
- The drug effectively reduces detrimental adhesion molecule activation in this patient population.
- Levosimendan represents a promising therapeutic option for managing endothelial dysfunction in advanced CHF.
Aim:
Endothelial activation and dysfunction may be an important contributor to chronic heart failure (CHF) progression. We sought to investigate whether the calcium sensitizer levosimendan affects beneficially endothelial function and attenuates the deleterious effects of soluble adhesion molecules in patients with advanced CHF.
Methods:
Twenty-six advanced CHF patients (mean New York Heart Association class, 2.6+/-0.3; ischemic/dilated, 18/8; mean left ventricular ejection fraction <35%) hospitalized due to syndrome worsening, were randomized (2:1) to receive either a 24-h levosimendan infusion of 0.1 microg/kg/min (n=17) or placebo (n=9). Endothelial function estimated by endothelial-dependent flow-mediated dilatation of the brachial artery (FMD), as well as plasma soluble intercellular adhesion molecule-1 (sICAM-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1), were assessed before and 48 h after therapy.
Results:
Baseline characteristics and medications were well balanced in the two treatment groups. A significant improvement of FMD (6.4+/-4.4% from 4.8+/-3.0%; p<0.05) with concomitant reduction of plasma concentrations of sICAM-1 (231+/-75 pg/ml from 339+/-157 pg/ml; p<0.05) and sVCAM-1 (1134+/-508 pg/ml from 1386+/-602 pg/ml; p<0.05) were observed only in levosimendan treated patients.
Conclusion:
Levosimendan could be an effective treatment in improving the endothelial function and reducing the detrimental adhesion molecule activation in advanced CHF patients.
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