Cardiomyopathy: Difference between revisions
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{{Short description|A group of diseases affecting the heart muscle}} | |||
{{Use dmy dates|date=October 2023}} | |||
'''Cardiomyopathy''' refers to a group of diseases that affect the heart muscle ([[myocardium]]), leading to impaired cardiac function. These conditions can result in heart failure, arrhythmias, and other serious complications. Cardiomyopathy can be classified into several types based on the underlying cause and the specific changes in the heart muscle. | |||
Cardiomyopathy | ==Types of Cardiomyopathy== | ||
== | ===Dilated Cardiomyopathy=== | ||
[[File:Dilated cardiomyopathy.jpg|thumb|right|Diagram of a heart with dilated cardiomyopathy]] | |||
Dilated cardiomyopathy (DCM) is characterized by the enlargement and weakening of the heart's ventricles. This condition often leads to reduced [[ejection fraction]], meaning the heart cannot pump blood efficiently. Causes of DCM include genetic mutations, viral infections, and exposure to toxins such as alcohol or certain chemotherapy drugs. | |||
== | ===Hypertrophic Cardiomyopathy=== | ||
[[File:Hypertrophic cardiomyopathy.jpg|thumb|left|Diagram of a heart with hypertrophic cardiomyopathy]] | |||
Hypertrophic cardiomyopathy (HCM) involves the thickening of the heart muscle, particularly the [[interventricular septum]]. This thickening can obstruct blood flow and lead to [[arrhythmias]]. HCM is often inherited and is the most common cause of sudden cardiac death in young athletes. | |||
== | ===Restrictive Cardiomyopathy=== | ||
Restrictive cardiomyopathy is characterized by the stiffening of the heart muscle, which restricts the heart's ability to fill with blood. This type is less common and can be caused by conditions such as [[amyloidosis]], [[sarcoidosis]], and hemochromatosis. | |||
== | ===Arrhythmogenic Right Ventricular Cardiomyopathy=== | ||
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a genetic disorder where the heart muscle is replaced by fatty and fibrous tissue, primarily affecting the right ventricle. This can lead to arrhythmias and an increased risk of sudden cardiac death. | |||
== | ===Unclassified Cardiomyopathy=== | ||
Some forms of cardiomyopathy do not fit neatly into the above categories and are considered unclassified. These may include conditions like left ventricular non-compaction and stress-induced cardiomyopathy (also known as Takotsubo cardiomyopathy). | |||
[[ | ==Symptoms== | ||
[[ | The symptoms of cardiomyopathy can vary depending on the type and severity of the condition. Common symptoms include: | ||
* Shortness of breath | |||
* Fatigue | |||
* Swelling of the legs, ankles, and feet ([[edema]]) | |||
* Irregular heartbeats ([[palpitations]]) | |||
* Dizziness or lightheadedness | |||
* Chest pain | |||
==Diagnosis== | |||
Diagnosis of cardiomyopathy typically involves a combination of: | |||
* [[Echocardiography]] | |||
* [[Electrocardiogram]] (ECG) | |||
* [[Magnetic resonance imaging]] (MRI) | |||
* Genetic testing | |||
* Blood tests | |||
==Treatment== | |||
Treatment for cardiomyopathy depends on the type and severity of the condition. Options may include: | |||
* Medications such as beta-blockers, ACE inhibitors, and diuretics | |||
* Implantable devices like [[pacemakers]] or [[implantable cardioverter-defibrillators]] (ICDs) | |||
* Lifestyle changes, including dietary modifications and exercise | |||
* Surgical options, such as septal myectomy or heart transplantation in severe cases | |||
==Related pages== | |||
* [[Heart failure]] | |||
* [[Arrhythmia]] | |||
* [[Heart transplantation]] | |||
* [[Echocardiography]] | |||
[[Category:Cardiovascular diseases]] | |||
[[Category:Heart disorders]] | |||
Revision as of 17:31, 18 February 2025
A group of diseases affecting the heart muscle
Cardiomyopathy refers to a group of diseases that affect the heart muscle (myocardium), leading to impaired cardiac function. These conditions can result in heart failure, arrhythmias, and other serious complications. Cardiomyopathy can be classified into several types based on the underlying cause and the specific changes in the heart muscle.
Types of Cardiomyopathy
Dilated Cardiomyopathy
Dilated cardiomyopathy (DCM) is characterized by the enlargement and weakening of the heart's ventricles. This condition often leads to reduced ejection fraction, meaning the heart cannot pump blood efficiently. Causes of DCM include genetic mutations, viral infections, and exposure to toxins such as alcohol or certain chemotherapy drugs.
Hypertrophic Cardiomyopathy
Hypertrophic cardiomyopathy (HCM) involves the thickening of the heart muscle, particularly the interventricular septum. This thickening can obstruct blood flow and lead to arrhythmias. HCM is often inherited and is the most common cause of sudden cardiac death in young athletes.
Restrictive Cardiomyopathy
Restrictive cardiomyopathy is characterized by the stiffening of the heart muscle, which restricts the heart's ability to fill with blood. This type is less common and can be caused by conditions such as amyloidosis, sarcoidosis, and hemochromatosis.
Arrhythmogenic Right Ventricular Cardiomyopathy
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a genetic disorder where the heart muscle is replaced by fatty and fibrous tissue, primarily affecting the right ventricle. This can lead to arrhythmias and an increased risk of sudden cardiac death.
Unclassified Cardiomyopathy
Some forms of cardiomyopathy do not fit neatly into the above categories and are considered unclassified. These may include conditions like left ventricular non-compaction and stress-induced cardiomyopathy (also known as Takotsubo cardiomyopathy).
Symptoms
The symptoms of cardiomyopathy can vary depending on the type and severity of the condition. Common symptoms include:
- Shortness of breath
- Fatigue
- Swelling of the legs, ankles, and feet (edema)
- Irregular heartbeats (palpitations)
- Dizziness or lightheadedness
- Chest pain
Diagnosis
Diagnosis of cardiomyopathy typically involves a combination of:
- Echocardiography
- Electrocardiogram (ECG)
- Magnetic resonance imaging (MRI)
- Genetic testing
- Blood tests
Treatment
Treatment for cardiomyopathy depends on the type and severity of the condition. Options may include:
- Medications such as beta-blockers, ACE inhibitors, and diuretics
- Implantable devices like pacemakers or implantable cardioverter-defibrillators (ICDs)
- Lifestyle changes, including dietary modifications and exercise
- Surgical options, such as septal myectomy or heart transplantation in severe cases
