Endocarditis

Endocarditis is a serious and potentially life-threatening infection of the inner lining of the heart, known as the endocardium. It occurs when bacteria, viruses, or other microorganisms enter the bloodstream and settle on the heart valves or other areas of the endocardium.

Types of Endocarditis

There are two main types of endocarditis:

  • Infective Endocarditis (IE): This is the most common type, caused by bacterial infection. It can be further divided into acute and subacute forms.
  • Non-Infective Endocarditis: This type is caused by non-bacterial factors, such as systemic lupus erythematosus or antiphospholipid syndrome.

Symptoms of Endocarditis

The symptoms of endocarditis can vary depending on the severity and location of the infection. Common symptoms include:

Causes and Risk Factors of Endocarditis

Endocarditis is usually caused by bacterial infection, which can enter the bloodstream through:

People with certain heart conditions, such as:

are at higher risk of developing endocarditis.

Treatments for Endocarditis

Treatment for endocarditis usually involves a combination of:

  • Antibiotics: To kill the bacteria causing the infection. The type and duration of antibiotic treatment depend on the severity and location of the infection.
  • Surgery: To repair or replace damaged heart valves or remove infected tissue. Surgery may be necessary in severe cases or when antibiotics are not effective.
  • Supportive care: To manage symptoms, such as fever, pain, and shortness of breath. This may include hospitalization, bed rest, and monitoring of vital signs.

Complications of Endocarditis

If left untreated or not treated promptly, endocarditis can lead to serious complications, including:

Prevention of Endocarditis

To reduce the risk of developing endocarditis, it is essential to:

  • Practice good oral hygiene and regular dental care
  • Avoid intravenous drug use
  • Use sterile equipment for medical procedures
  • Take antibiotics as prescribed before certain medical procedures (e.g., dental work) if you have a high-risk heart condition

Frequently Asked Questions (FAQs)

What is Endocarditis?
Endocarditis is an infection of the inner lining of the heart, typically affecting the heart valves.

What causes Endocarditis?
Endocarditis is usually caused by bacteria, but can also be caused by fungi or other microorganisms.

Who is at risk for Endocarditis?
People with pre-existing heart conditions, artificial heart valves, or weakened immune systems are at increased risk.

What are the symptoms of Endocarditis?
Symptoms may include fever, fatigue, shortness of breath, and chest pain, among others.

How is Endocarditis diagnosed?
Diagnosis typically involves blood tests, echocardiogram, and other imaging studies.

Can Endocarditis be treated?
Yes, treatment usually involves antibiotics, and in some cases, surgery may be necessary.

What are the complications of Endocarditis?
Complications can include heart failure, stroke, and damage to other organs.

How can Endocarditis be prevented?
Prevention measures may include good oral hygiene, avoiding certain medical procedures if possible, and taking antibiotics before certain procedures for people at high risk.

Is Endocarditis contagious?
Endocarditis is not directly contagious, but the bacteria that cause it can be spread through contact with infected bodily fluids.

What is the prognosis for Endocarditis?
The prognosis varies depending on the severity of the infection, the effectiveness of treatment, and the presence of underlying health conditions.

Article last updated on: 18th October 2025.
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