β-Blocker therapy for cirrhotic cardiomyopathy: a randomized-controlled trial.

Abstract

BACKGROUND:

Cirrhotic cardiomyopathy is characterized by an attenuated contractile response to stress. Long-term exposure of β-adrenergic receptors to persistently high levels of catecholamines has been implicated in its pathogenesis. We hypothesized that β-blockade with metoprolol could reverse the changes in heart function and morphology in cirrhotic cardiomyopathy.

PATIENTS AND METHODS:

In this prospective randomized trial, we included 78 patients aged between 18 and 60 years with abnormal cardiac output response under dobutamine stress echocardiography, without primary cardiac disease or a history of alcohol intake. Patients were assigned randomly to receive metoprolol or placebo for 6 months. The primary endpoint was the improvement in cardiac output response to stress, measured by an increase in the left ventricle stroke volume more than 30%.

RESULTS:

Three (7.3%) patients in the metoprolol group and nine (24.3%) patients in the placebo group showed improved stroke volume (P=0.057). Diastolic dysfunction was found in two (4.8%) patients before and in five (15.6%) patients after therapy in the metoprolol group, and in 10 (27%) patients before and nine (31%) patients after therapy in the placebo group (P=0.67). After treatment, no echocardiography parameter of morphology was significantly different between metoprolol or placebo groups. No significant differences were observed in noradrenaline, plasma renin activity, and troponin levels between groups. Cirrhosis-related clinical events, including hospitalizations and mortality, were not significantly different between the two groups. Six months of therapy with β-blocker did not ameliorate heart function and morphology in patients with cirrhotic cardiomyopathy.

• Authors: Odilson M Silvestre, Alberto Q Farias, Danusa S Ramos, Meive S Furtado, Ana C Rodrigues, Rafael O Ximenes, Daniel F de Campos Mazo, Patricia M Yoshimura Zitelli, Marcio A Diniz, José L Andrade, Celia Strunz, Antônio A Friedmann, Samuel S Lee, Flair J Carrilho, Luiz A C D'Albuquerque, Fernando Bacal
• Journal: European journal of gastroenterology & hepatology (Eur J Gastroenterol Hepatol) Vol. 30 Issue 8 Pg. 930-937 (08 2018) ISSN: 1473-5687 [Electronic] England
• PMID: 29979644 (Publication Type: Journal Article, Randomized Controlled Trial)

Chemical References

• Adrenergic beta-1 Receptor Antagonists
• Biomarkers
• Troponin
• Renin
• Metoprolol
• Norepinephrine

Topics

• Adolescent
• Adrenergic beta-1 Receptor Antagonists (adverse effects, therapeutic use)
• Adult
• Biomarkers (blood)
• Brazil
• Cardiac Output (drug effects)
• Cardiomyopathies (diagnostic imaging, drug therapy, etiology, physiopathology)
• Echocardiography, Stress
• Female
• Humans
• Liver Cirrhosis (complications, diagnosis, drug therapy)
• Male
• Metoprolol (adverse effects, therapeutic use)
• Middle Aged
• Myocardial Contraction (drug effects)
• Norepinephrine (blood)
• Prospective Studies
• Recovery of Function
• Renin (blood)
• Time Factors
• Treatment Outcome
• Troponin (blood)
• Ventricular Function, Left (drug effects)
• Ventricular Remodeling (drug effects)
• Young Adult