Alcoholic Heart Disease: Symptoms and Complications

Alcoholic heart disease, medically classified as a type of dilated cardiomyopathy, is a heart condition brought about by excessive alcohol consumption. This disease is generally asymptomatic in its early stages, making it a silent threat. As it progresses, it can lead to symptoms such as breathing difficulties, tachycardia, chest pain, body edema, syncope, irregular heartbeats, and urinary problems. In advanced stages, it can lead to serious complications like heart failure, pulmonary embolism, or cardiac arrest.

Understanding Cardiomyopathies

Cardiomyopathies are specific heart diseases, characterized by an anatomical alteration of the myocardium (the heart muscle), which can impair its functioning. A healthy myocardium is crucial for the heart's proper functioning. Therefore, a malfunctioning myocardium, as in the case of a cardiomyopathy, can compromise the heart's activity, sometimes drastically.

Cardiomyopathies are typically classified into four types:

  1. Dilated cardiomyopathy
  2. Hypertrophic cardiomyopathy
  3. Restrictive cardiomyopathy
  4. Arrhythmogenic cardiomyopathy of the right ventricle

These types are distinguished based on the specific alterations developed by the myocardium that lead to impaired heart function.

The Heart's Anatomy and Function

The heart, an essential organ of the circulatory system, can be divided into two halves: left and right halves. Each half consists of two distinct cavities: the right atrium and right ventricle in the right half, and the left atrium and left ventricle in the left half. These cavities play a crucial role in blood oxygenation and distribution throughout the body. The right atrium and right ventricle pump blood into the lungs, while the left atrium and left ventricle distribute oxygenated blood to the body's organs and tissues. The flow of blood within the heart is regulated by four heart valves.

Image showing the anatomy of the heart

Alcoholic Heart Disease: A Type of Dilated Cardiomyopathy

Alcoholic heart disease, or alcoholic cardiomyopathy, is a dilated cardiomyopathy resulting from prolonged alcohol abuse. It is characterized by the dilation of the left ventricular cavity and the consequent thinning of this cavity's muscular wall. This condition results in difficulties in pumping blood into circulation, thereby affecting the health of various organs and tissues in the human body.

Causes and Risk Factors

The primary cause of alcoholic heart disease is excessive and prolonged consumption of alcohol. Over time, alcohol abuse can lead to the dilation and thinning of the left ventricle's muscular wall, impairing its function. Given that the left ventricle is responsible for pumping oxygenated blood to the body's organs and tissues, its impaired function can hinder the supply of oxygen to these areas.

Symptoms and Complications

Alcoholic heart disease typically presents symptoms only in its advanced stages. These symptoms can include persistent fatigue, breathing difficulties, edema, syncope, chest pain, irregular heartbeat, rapid heartbeat, loss of appetite, reduced concentration, and urinary problems.

As the disease progresses, it can lead to serious complications such as heart failure, dilation and thinning of the myocardium extending to other parts of the heart, valvular regurgitation, cardiac arrest, pulmonary embolism, and worsening of existing arrhythmias.


The diagnostic process for alcoholic heart disease typically includes a physical examination, medical history, chest x-ray, chest CT scan, echocardiogram, electrocardiogram, and blood tests. These tests allow for the evaluation of the patient's general health, the identification of typical symptoms of heart disease, and the determination of the heart's anatomical anomalies and electrical activity.


The primary treatment for alcoholic heart disease involves complete cessation of alcohol consumption. This is often complemented by a low-sodium diet and medication such as diuretics, ACE inhibitors, and/or beta-blockers to reduce the heart's difficulties in pumping blood. In severe cases, the implantation of a pacemaker or an implantable cardioverter defibrillator may be considered.

Prognosis and Prevention

The prognosis for patients with alcoholic heart disease largely depends on the duration and severity of alcohol abuse. The disease is more severe and the damage more profound and irreversible the longer and more significant the alcohol abuse. However, early diagnosis and treatment can increase the chances of a satisfactory recovery.

The most effective prevention method for alcoholic heart disease is moderate alcohol consumption. For those already suffering from alcoholism but not yet from alcoholic heart disease, immediate cessation of alcohol consumption is the only way to protect against the disease.

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