Cardiomyopathy
Cardiomyopathy is a group of conditions that affect the heart muscle, causing it to become enlarged, thickened, stiff, or weakened. These changes can affect the heart’s ability to pump blood effectively and may also lead to abnormal heart rhythms.
At DHEE Hospitals Cardiology, cardiomyopathy is evaluated based on the type of heart muscle disease, symptoms, heart function, underlying cause, and risk of complications. Treatment is tailored to each patient’s condition and may include medicines, lifestyle changes, procedures, or device-based treatment.
What Is Cardiomyopathy?
The heart muscle needs to contract and relax normally to pump blood throughout the body. In cardiomyopathy, structural or functional changes in the heart muscle can interfere with this process.
Some forms of cardiomyopathy develop gradually, while others may be inherited or associated with another medical condition.
Types of Cardiomyopathy
Dilated Cardiomyopathy
In dilated cardiomyopathy, one or more chambers of the heart become enlarged and the heart muscle may become weaker, reducing its pumping ability.
Hypertrophic Cardiomyopathy
Hypertrophic cardiomyopathy causes abnormal thickening of the heart muscle. The thickened muscle can interfere with the heart’s ability to fill properly and, in some patients, can obstruct blood flow from the heart.
Restrictive Cardiomyopathy
Restrictive cardiomyopathy occurs when the heart muscle becomes abnormally stiff, making it difficult for the chambers to fill with blood normally.
Arrhythmogenic Cardiomyopathy
Arrhythmogenic cardiomyopathy is a condition in which changes in the heart muscle can increase the risk of abnormal heart rhythms and, in some cases, reduced heart function.
Symptoms of Cardiomyopathy
Some people with cardiomyopathy have few or no symptoms in the early stages. When symptoms occur, they may include:
- Shortness of breath
- Fatigue and weakness
- Swelling of the legs, ankles, or feet
- Palpitations or irregular heartbeat
- Dizziness or light-headedness
- Fainting or near-fainting
- Reduced ability to exercise
- Chest discomfort
What Causes Cardiomyopathy?
The cause varies depending on the type of cardiomyopathy. Possible contributing factors include:
- Family history and genetic changes
- Coronary artery disease
- Previous heart attack
- Long-standing high blood pressure
- Heart valve disease
- Heart inflammation
- Certain infections
- Some medicines or toxins
- Excessive alcohol consumption
- Metabolic or systemic diseases
In some patients, cardiomyopathy may be classified as idiopathic, meaning that no specific cause is identified.
Inherited Cardiomyopathy
Some forms of cardiomyopathy can run in families. If a person has a diagnosed inherited cardiomyopathy, family members may need to discuss appropriate screening with a healthcare professional.
Genetic evaluation may be considered in selected patients depending on the type of cardiomyopathy and family history.
How Is Cardiomyopathy Diagnosed?
Medical History and Physical Examination
The cardiologist reviews symptoms, personal medical history, family history, medications, lifestyle factors, and other conditions that may affect the heart.
Electrocardiogram
An ECG records the electrical activity of the heart and can identify rhythm abnormalities or electrical changes associated with cardiomyopathy.
Echocardiogram
An echocardiogram uses ultrasound to assess the heart’s chambers, muscle thickness, pumping function, valves, and blood flow.
Holter Monitoring
Holter or extended rhythm monitoring may be recommended to detect abnormal heart rhythms that occur intermittently.
Cardiac MRI
Cardiac MRI can provide detailed information about the heart muscle and may help identify scarring, inflammation, or other structural changes in selected patients.
Blood Tests
Blood tests may be performed to evaluate conditions that could contribute to heart muscle disease and to assess overall health.
Genetic Testing
Genetic testing may be considered in selected patients, particularly when an inherited form of cardiomyopathy is suspected.
Cardiomyopathy Treatment
Treatment depends on the type of cardiomyopathy, symptoms, heart function, underlying cause, and risk of complications.
Medicines
Depending on the condition, medicines may be prescribed to improve heart function, control blood pressure, manage fluid retention, regulate heart rhythm, or reduce the risk of complications.
Treatment of Underlying Conditions
Managing conditions such as coronary artery disease, high blood pressure, thyroid disorders, or other underlying diseases can be an important part of treatment.
Catheter Procedures
Selected patients with certain types of cardiomyopathy and associated rhythm disorders may benefit from catheter-based procedures such as ablation.
Implantable Devices
Some patients may require devices such as a pacemaker, cardiac resynchronization therapy device, or implantable cardioverter-defibrillator depending on their heart function and risk of serious arrhythmias.
Surgery
In selected cases of severe cardiomyopathy, surgical treatment may be considered. The appropriate procedure depends on the underlying condition and individual cardiac findings.
Cardiomyopathy and Heart Failure
Some forms of cardiomyopathy can weaken the heart muscle and eventually lead to heart failure. However, cardiomyopathy and heart failure are not the same condition. Cardiomyopathy describes disease affecting the heart muscle, while heart failure describes a condition in which the heart cannot pump or fill effectively enough to meet the body’s needs.
Can Cardiomyopathy Be Prevented?
Not all forms of cardiomyopathy can be prevented, particularly inherited forms. However, managing cardiovascular risk factors and avoiding factors that can damage the heart may help protect heart health.
- Control high blood pressure and cholesterol.
- Manage diabetes effectively.
- Avoid smoking.
- Limit excessive alcohol consumption.
- Maintain a healthy body weight.
- Follow treatment for existing heart disease.
- Attend regular cardiac follow-up when recommended.
When Should You See a Cardiologist?
Persistent breathlessness, unexplained fatigue, recurring palpitations, fainting, chest discomfort, or reduced exercise tolerance should be evaluated by a healthcare professional.
People with a family history of cardiomyopathy or unexplained sudden cardiac death may also need to discuss appropriate cardiac screening with a cardiologist.
Cardiomyopathy Care at DHEE Hospitals Cardiology
DHEE Hospitals Cardiology provides evaluation and management for patients with cardiomyopathy and related heart muscle and rhythm disorders. Assessment may include ECG, echocardiography, cardiac rhythm monitoring, blood tests, cardiac imaging, and other investigations based on the patient’s condition.
Treatment is planned according to the type and cause of cardiomyopathy, heart function, symptoms, and individual risk factors, with regular follow-up when long-term management is required.
Frequently Asked Questions About Cardiomyopathy
Is cardiomyopathy a serious condition?
Some forms of cardiomyopathy can lead to heart failure or serious heart rhythm problems, while others may remain stable with appropriate monitoring and treatment. The level of risk depends on the type and severity of the condition.
Can cardiomyopathy be inherited?
Yes. Some forms of cardiomyopathy have a genetic component and can occur in multiple members of a family.
Can cardiomyopathy cause an irregular heartbeat?
Yes. Changes in the heart muscle can affect the electrical system and increase the risk of abnormal heart rhythms.
Can cardiomyopathy be treated?
Many forms of cardiomyopathy can be managed with medicines, lifestyle measures, treatment of underlying conditions, procedures, or implanted devices when appropriate.
Can people with cardiomyopathy exercise?
Exercise recommendations depend on the type and severity of cardiomyopathy and the individual’s risk of arrhythmia or other complications. Patients should discuss appropriate physical activity with their cardiologist.
