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What Causes Rheumatic Heart Disease? Signs & Symptoms

Posted On: Feb 27, 2025
blogs read 5 Min Read
Rheumatic Heart Disease (RHD): Symptoms, Causes & Treatment

Rheumatic heart disease (RHD) is a severe condition caused by permanent damage to the heart valves due to rheumatic fever, an inflammatory disease linked to untreated or poorly treated streptococcal infections. This blog explores the causes, symptoms, diagnostic methods, and treatments for rheumatic heart disease, with a focus on early detection and management.

 

Causes of Rheumatic Heart Disease

The primary cause of rheumatic heart disease is rheumatic fever, which typically follows an untreated group A Streptococcus infection. When left untreated, the body’s immune system may overreact to the infection, leading to inflammation and scarring of the heart valves. The damage caused by this immune response can result in narrowed or leaky valves, ultimately leading to severe complications like heart failure.

  • Streptococcal Infections: Group A Streptococcus is the bacterium responsible for strep throat and scarlet fever. Without prompt treatment, these infections can trigger rheumatic fever.

  • Autoimmune Response: The immune system’s response to the infection can mistakenly attack healthy tissues, including the heart.

  • Valve Scarring: The repeated inflammatory response can cause permanent scarring of the heart valves, leading to rheumatic heart disease symptoms like valve dysfunction and heart failure.

Signs and Symptoms of Rheumatic Heart Disease

The symptoms of rheumatic heart disease can vary depending on the severity of valve damage. Some common signs include:

  • Chest Pain or Discomfort: A feeling of pressure, tightness, or pain in the chest.

  • Shortness of Breath: Difficulty breathing, particularly during physical activity or when lying down.

  • Fatigue: Persistent tiredness or weakness, even with minimal exertion.

  • Swelling (Edema): Fluid retention leading to swelling in the ankles, feet, or abdomen.

  • Heart Palpitations: Irregular or rapid heartbeats, which may indicate valve issues.

  • Fainting or Dizziness: In severe cases, insufficient blood flow can lead to lightheadedness or fainting.

These symptoms may not appear until years after the initial streptococcal infection, emphasizing the importance of early treatment and prevention.

Comparison of Rheumatic Fever and Rheumatic Heart Disease

Feature

Rheumatic Fever

Rheumatic Heart Disease

Cause

Group A Streptococcus infection

Complications of untreated rheumatic fever

Duration

Temporary (weeks to months)

Lifelong without proper treatment

Primary Affected Area

Joints, skin, brain, and heart

Heart valves

Symptoms

Joint pain, fever, rash, and inflammation

Heart valve dysfunction and related symptoms

Treatment

Antibiotics and anti-inflammatory drugs

Valve repair, replacement, and medications

Diagnosis of Rheumatic Heart Disease

Diagnosing rheumatic heart disease involves a combination of clinical evaluation, medical history, and diagnostic tests. Key diagnostic tools include:

  • Physical Examination: A doctor may detect abnormal heart sounds (murmurs) caused by valve dysfunction.

  • Echocardiogram: An ultrasound of the heart that provides detailed images of the heart valves and chambers.

  • Electrocardiogram (ECG): Measures the electrical activity of the heart and can reveal rhythm abnormalities.

  • Chest X-ray: Helps identify heart enlargement or fluid buildup in the lungs.

  • Blood Tests: Used to detect inflammation and recent streptococcal infection.

Rheumatic Heart Disease (RHD): Symptoms, Causes & Treatment

Angiography in Rheumatic Heart Disease

Angiography is a critical diagnostic tool for assessing blood flow and identifying valve damage in rheumatic heart disease treatment. Different types of angiography include:

  1. Coronary Angiography: This procedure injects contrast dye into the coronary arteries to detect blockages or abnormalities. It can also provide insights into overall heart function in RHD patients.

  2. Pulmonary Angiography: Focuses on the pulmonary arteries to identify issues like blood clots. In RHD patients, this can help assess complications affecting the lungs.

  3. Peripheral Angiography: Examines blood flow in the limbs and can detect circulatory issues beyond the heart.

During an angiography, a catheter is inserted into a blood vessel (usually in the groin or arm) and guided to the heart. Contrast dye is injected to make the blood vessels visible on X-ray images, allowing physicians to observe blood flow and detect obstructions or abnormalities.

Treatment Options for Rheumatic Heart Disease

Managing rheumatic heart disease involves treating symptoms, preventing further complications, and addressing the underlying cause. Treatment options include:

  • Medications: Anti-inflammatory drugs, diuretics, and beta-blockers may be prescribed to manage heart failure symptoms, reduce inflammation, and prevent further streptococcal infections.

  • Antibiotic Prophylaxis: Long-term antibiotics may be recommended to prevent recurrent streptococcal infections and reduce the risk of further valve damage.

  • Surgical Interventions: Severe valve damage may require valve repair or replacement. Surgical options include:

  • Valve Repair: Restoring the function of a damaged valve.

  • Valve Replacement: Replacing a damaged valve with a mechanical or tissue valve.

  • Lifestyle Changes: Maintaining a healthy lifestyle, including regular exercise, a balanced diet, and stress management, can help improve heart health.

Preventive Measures for Rheumatic Heart Disease

Preventing rheumatic heart disease involves prompt treatment of streptococcal infections and adopting healthy practices:

  • Early Treatment: Seek medical attention for sore throats or skin infections to ensure timely treatment with antibiotics.

  • Good Hygiene: Frequent handwashing and proper hygiene practices can help prevent the spread of group A Streptococcus.

  • Regular Checkups: Routine health checkups can help identify early signs of rheumatic fever or heart complications.

  • Vaccination: While there is no vaccine for group A Streptococcus, staying up-to-date on other vaccines can help maintain overall health.

Preventive Measures for Rheumatic Heart Disease

Measure

Description

Early Treatment

Prompt treatment of strep throat and skin infections with antibiotics

Hygiene Practices

Frequent hand washing and maintaining overall cleanliness

Routine Health Checkups

Regular follow-ups for those with a history of rheumatic fever

Long-Term Antibiotics

Prophylactic antibiotics to prevent recurrence of rheumatic fever

Awareness and Education

Educating communities on the importance of early diagnosis and treatment

Conclusion

Early diagnosis and prompt treatment of streptococcal infections are essential in preventing rheumatic heart disease symptoms and complications. Maintaining good hygiene and seeking timely medical attention can significantly lower the risk of developing this serious condition.

For comprehensive care and expert guidance on rheumatic heart disease treatment, consult with healthcare professionals at Manipal Hospitals Kharadi.

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