It is therefore possible that patients with ACM could also harbour a genetic substrate that predisposes them to this form of cardiomyopathy. The suspicion that there may be an individual susceptibility to this disease is underscored by the finding that only a small group of alcoholics develop ACM, and that a proportional relationship between myocardial damage and alcohol intake has not been proven. The primary treatment for ACM involves complete abstinence from alcohol alcoholic cardiomyopathy symptoms or other drugs. However, some studies show that moderating alcohol consumption may lead to similar health outcomes.
Acknowledgments
- They may also do imaging studies and other tests to see how blood is flowing out of your heart.
- Counseling and resource provision for patients should be part of management.
- Alcoholic cardiomyopathy is most common in men between the ages of 35 and 50, but the condition can affect women as well.
- The heart’s LV attempts to compensate for this damage by enlarging to achieve a higher blood output.
The ‘Quebec beer drinkers’ cardiomyopathy’ was related to cobalt supplementation to beer that was made in the past. It was described as a form of DCM with severe pericardial effusion, low cardiac output, and purplish skin coloration. This review will provide an updated view of this condition, including its epidemiology, pathogenesis, diagnosis, and treatment (Graphical Abstract).
Progression of Aortic Regurgitation: The Missing Link Between Disease Severity and Clinical Complications
According to several articles, even moderate alcohol use has comparable effects to abstinence. Goal-directed heart failure therapy, as utilized in idiopathic DCM with low ejection fraction, should be a part of pharmaceutical therapy. Some studies have shown that the combination of carvedilol and trimetazidine with other traditional heart failure medications is effective 1-3,7-11,16-20. Evidence of altered bioenergetics or mitochondrial dysfunction has been observed in various investigations of ethanol effect on the heart. Disrupted bioenergetics and oxidative phosphorylation indices and a change in the ultrastructure of the mitochondria may be the cause of such dysfunctions. This can be understood through clinical observations that highlight the mitochondria as the main target of oxidative damage.
AMOUNT OF ALCOHOL REQUIRED TO PRODUCE ACM
The latest two papers to be published, unlike previous papers, reported worse outcomes for ACM patients compared to DCM patients. In the first of these studies, Fauchier et al11 studied 50 patients with ACM and 84 patients with DCM between 1986 and 1997. Although up to 81% of ACM patients received an ACEI, none received beta-blockers and the use of spironolactone was not specified, although it was probably quite low. Also, current common cardiac therapies such as ICD and CRT devices were not used because of the period when the study was conducted. After a follow-up period of 47 mo, a significantly higher survival rate was observed among patients with DCM compared to patients with ACM. In this study, the only independent predictor of cardiac death was alcohol abstinence.
Data on the amount of alcohol consumption required to cause ACM are limited and controversial. Individuals who completely quit alcohol generally have improved overall outcomes. They typically require fewer hospitalizations and show improved heart function on ECG readings. Around 40–80% of people with ACM who continue drinking alcohol die within 10 years of their diagnosis. For some people, a combination of factors could also lead to a weakened heart. Without an adequate supply of blood and oxygen, the body’s organs and tissues can no longer function properly.
Differential Diagnosis
- Coronary angiography, coronary artery computed tomography (CT), or nuclear medicine testing was performed to rule out coronary heart diseases.
- It is unclear whether it was the cumulative dose or the increased daily dose of alcohol that precipitated the left ventricular dysfunction.
- A 48-year-old woman presented to the emergency department with confusion and shortness of breath.
Our study indicated that the QRS duration, systolic blood pressure, and New York Heart Association classification at admission provided independent prognostic information in patients with ACM. As pointed out before, the current accepted definition of ACM probably underestimates the number of women affected by the disease. Alcohol affects heart function and is dependent on the quantity of alcohol that the heart is exposed to. Women typically have a lower BMI than men, and therefore the same alcohol exposure can be achieved with lower alcohol intake. In the study by Gavazzi et al10, ACM patients who continued drinking exhibited worse transplant-free survival rates after 7 years than those who stopped drinking alcohol (27% vs 45%)10.
To assess the quality and validity of the included studies, we performed a critical appraisal using appropriate tools such as the Newcastle-Ottawa Scale for observational studies or the Cochrane Risk of Bias tool for clinical trials. This assessment allowed us to evaluate the methodological rigor of each study and determine its overall quality and potential impact on the literature review. Finally, we analyzed and presented the synthesized literature, along with relevant findings and conclusions from the included studies, in a coherent manner. We identified main themes and sub-themes to provide a comprehensive overview of the current state of knowledge regarding ACM. By following this methodology, we aim to contribute to the existing body of knowledge on ACM, providing a reliable and up-to-date understanding of its pathogenesis, clinical features, diagnostic approaches, treatment options, and potential preventive strategies.
