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What Is Alcoholic Cardiomyopathy?

Publicado 4 años ago

When the heart can’t pump enough blood, it starts to expand to hold the extra blood. At some point, the heart muscle and blood vessels could stop working due to this type of strain. There’s some debate in the medical community regarding moderate alcohol consumption. Some studies suggest that drinking Alcoholics Anonymous alcohol in moderate amounts could lead to the same health outcomes as total abstinence.

alcoholic cardiomyopathy

Beriberi heart disease

It is unknown whether individual susceptibility would be related to increased vulnerability at the myocardial level and/or to impaired alcohol metabolism. The diagnosis of ACM is usually one of exclusion in a patient with DCM with no identified cause and a long history of heavy alcohol abuse. According to most studies, the alcohol consumption required to establish a diagnosis of ACM is over 80 g per day during at least 5 years9-12.

Risk Factors for Developing Alcoholic Cardiomyopathy

  • Since the early nineties, recognition of mitochondria’s role in apoptosis and cell fate has brought about a strong resurgence of interest in mitochondrial biology 67,68.
  • In some cases, dizziness can lead to fainting, particularly during episodes of irregular heartbeat.
  • This will give the damaged heart time to heal and allow the body to recover from the effects of alcohol.
  • Your healthcare provider will likely recommend that you also focus on improving your diet in ways that help your heart.

However, a systolic impairment was not found as the years of alcoholic abuse continued. However, ischemic heart disease often causes chest pain during physical activity or stress (angina), which is less common in alcoholic cardiomyopathy. Ischemic heart disease is also linked to risk factors like high cholesterol, high blood pressure, smoking, and diabetes, rather than alcohol use. Alcohol-induced cardiomyopathy remains a relevant health problem, for which the mainstay of treatment is alcohol abstinence. In recent years, basic and clinical research has shed light on its pathogenesis, which includes direct alcoholic cardiomyopathy toxic effects of alcohol on the myocardium, oxidative stress, mitochondrial dysfunction, and genetic susceptibility. Long-term alcohol abuse weakens and thins the heart muscle, affecting its ability to pump blood.

Disease category:

It has been described as having some kind of effect in all human body organs either in acute or chronic consumption 11,12. In addition, ethanol is an immunosuppressive drug that is pro-inflammatory and pro-oncogenic 14,15,16,17. Ethyl alcohol, also known as “ethanol” or usually just as “alcohol”, is the most consumed drug in human history 1. At present, its consumption rates are still very high, with a widespread worldwide distribution, in a global uncontrolled scenario with easy access 2. In fact, there is an increasing consumption in particular groups, such as adolescents and young people 3,4. In Munich, the annual consumption of beer reached 245 l per capita and year in the last quarter of the 19th century.

  • Complete avoidance of alcohol not only helps in managing symptoms but also plays a crucial role in reversing some of the damage caused to the heart muscle.
  • Due to page limitations, we recognize that we have not included all the excellent scientific work completed in the area of alcohol and the cardiovascular system.

5. The effects of Moderate Consumption of Ethanol and Binge-drinking

In part due to a decline if the production of mitochondrial proteins, but also a function of the degradation of mitochondrial DNA (mtDNA) 70,73,74. As a membrane delimited organelle, mitochondria possess their own genetic material that is used to encode 37 genes, 13 of which are proteins. Although a small number relative to the more than 1000 proteins localized to the mitochondria, high fidelity mtDNA is critical in the formation and stability of the complexes important for oxidative phosphorylation 69, 75-78. The consequence of the decrease in many mitochondrial proteins is poorly functioning mitochondria. Tests like MCV, GGT, AST, ALT, and INR can help support the diagnosis by showing liver damage. Other tests like ECG and chest x-ray can show irregular heartbeats, heart damage, and fluid buildup.

In a two step process, ethanol is metabolized to acetate, via an acetaldehyde intermediate 14. Although this process predominantly occurs in the liver, the alcohol metabolizing enzymes, alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH), are also present in the heart and other tissues 13,15,16. Acetaldehyde is ten times more toxic than ethanol, and has been shown to concentrate in cardiac tissue 13,16. The consequence is a rise of intracellular free oxygen radicals (ROS) which is viewed as a major damage inducing pathway within the cell 17,18. Experimental studies that used 4-methylpyrazole (an alcohol dehydrogenase inhibitor) or cyanamide (an aldehyde dehydrogenase inhibitor) found that ROS generation was blocked 19. In addition to the two-step process of ethanol degradation to acetate, the enzyme fatty acid ethyl ester (FAEE) synthase performs an esterification reaction coupling ethanol to free fatty acids as a non-oxidative means of alcohol metabolism 20.

This, in turn, leads to increased production of reactive oxygen species (ROS), which contribute to oxidative stress. Oxidative stress is a critical factor in the development of alcoholic cardiomyopathy, as it damages essential cellular components—DNA, proteins, and lipids—and impairs cardiac function. Among the many ethanol and heart studies, mitochondrial dysfunction or evidence of impaired bioenergetics has been a common finding. This is exemplified by either a change in mitochondrial ultrastructure and/or depressed indices of bioenergetics and oxidative phosphorylation. As reviewed below, it is possible that mitochondria serve as a site for ethanol-induced ROS generation, but also https://ecosoberhouse.com/ may be a target of ethanol-induced ROS injury.

alcoholic cardiomyopathy

  • Acetaldehyde is ten times more toxic than ethanol, and has been shown to concentrate in cardiac tissue 13,16.
  • Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.
  • This condition tends to be worse the more you drink and/or the longer you were a heavy drinker.
  • The pathologic and histologic findings of AC are essentially indistinguishable from those of other forms of DC.

Addressing alcoholic cardiomyopathy requires a comprehensive treatment plan focused on improving heart health and managing symptoms. Two critical components of this treatment approach are alcohol abstinence and medication, along with lifestyle changes. Yes, Alcoholic Cardiomyopathy can be reversed in some cases with abstinence from alcohol and other lifestyle changes. It is important to stop drinking immediately and seek medical advice to begin treatment.

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