Endocarditis: Causes, Symptoms, and Treatment

Endocarditis that goes undiagnosed and is treated late can lead to various serious complications that have a major impact on heart health and on the patient’s overall medical condition.

Have you ever felt chest pain that appeared suddenly for no clear reason? Or perhaps you feel unusually tired even though you have had enough rest? These symptoms may be a sign that something serious is happening in your body, such as endocarditis, a condition that can become a fatal threat to your heart health.

In this article, we will discuss endocarditis in depth, from its causes and symptoms to how to prevent it.

01 / Heart Disease

What Is Endocarditis?

Endocarditis is an infection of the inner lining of the heart, known as the endocardium. This infection can have a serious impact on heart health, and if it is not treated quickly, it can cause life-threatening complications.

The endocardium serves as a protective layer for the heart’s internal structures, including the valves and chambers. When bacteria, fungi, or parasites enter the bloodstream and attack the endocardium, this condition can disrupt heart function and cause permanent damage to the heart valves or other parts of the heart.

There are two commonly recognized types of endocarditis:

1. Infective Endocarditis: This is the type of endocarditis caused by a microbial infection, whether bacterial, fungal, or parasitic. Infective endocarditis often occurs when these microbes enter the bloodstream through a wound, a medical procedure, or from another infection in the body. An example is a dental infection that may spread to the heart.
2. Non-Infective Endocarditis: This type is rare and is usually not caused by microbes. Instead, non-infective endocarditis is often associated with other medical conditions, such as autoimmune diseases.

02 / Heart Disease

Causes of Endocarditis

Endocarditis can be caused by various microorganisms, including bacteria, fungi, and parasites. Some of the pathogens most often identified as causes of endocarditis are:

1. Bacteria: Bacteria are the main cause of infective endocarditis. Some types of bacteria that commonly cause this infection include Streptococcus viridans, Staphylococcus aureus, and Enterococcus. A bacterial infection can infect the lining of the heart and cause dangerous inflammation.
2. Fungi: Although less common, fungi can also cause endocarditis, especially in people with weakened immune systems. Examples are Candida and Aspergillus, which can infect the heart after entering the bloodstream.
3. Parasites: Parasites such as Trypanosoma cruzi, the cause of Chagas disease, can also contribute to endocarditis, especially in areas where this infection is common.

These infections can reach the heart through various routes. The microorganisms often enter the bloodstream as a result of an injury, a medical procedure, or another infection in the body. For example, a non-sterile dental procedure or an infected wound can become an entry point for bacteria to enter the bloodstream and eventually reach the heart.

Several risk factors increase a person’s likelihood of developing endocarditis, including:

1. Existing Medical Conditions: People with congenital heart defects, artificial heart valves, or a previous history of endocarditis have a higher risk. In addition, other medical conditions such as diabetes, kidney disease, or cancer can also increase the risk.
2. Dental Health and Oral Hygiene: Poor oral hygiene can be a significant risk factor. Dental infections and gum inflammation can allow bacteria to enter the bloodstream, increasing the likelihood of endocarditis. That is why taking care of your teeth and having regular checkups are very important to prevent these infections.

03 / Heart Disease

Symptoms of Endocarditis

The symptoms of endocarditis can vary and are sometimes hard to detect in the early stages. Some people may have no symptoms at all, especially in the early stages of the infection. However, it is important to watch for the following signs:

• General Symptoms: These symptoms are often nonspecific and can resemble other illnesses, making it difficult to diagnose endocarditis right away. General symptoms include:
  1. Fever (sometimes a high fever)
  2. Extreme fatigue
  3. Muscle and joint pain
  4. Shortness of breath
  5. Cough
  6. Night sweats
• Specific Symptoms: These symptoms point more strongly to the possibility of endocarditis, but still require further medical examination to confirm the diagnosis. Specific symptoms may include:
  1. Chest pain
  2. Swelling of the feet and legs (edema)
  3. A skin rash (petechiae) in the form of small red spots under the skin
  4. Changes in the color of the fingernails and toenails
  5. Changes in skin color on the palms of the hands and soles of the feet
  6. Shortness of breath when lying down (orthopnea)
  7. Fainting (syncope)

The Importance of Early Detection and Prompt Medical Consultation

Because endocarditis can cause serious complications if left untreated, it is important to consult a doctor right away if you experience the symptoms above, especially if you have risk factors such as those described earlier (congenital heart defects, artificial heart valves, and so on). Prompt and appropriate treatment can prevent serious complications, such as heart valve damage or heart failure.

Differences in Symptoms Between Children and Adults

The symptoms of endocarditis can differ between children and adults. In children, the symptoms may be harder to recognize and can include:

• High Fever: Often more obvious than in adults.
• Behavioral Changes: Children may show changes in behavior, such as irritability or loss of energy.
• Gastrointestinal Symptoms: Such as nausea, vomiting, or diarrhea, which rarely appear in adults.

In contrast, in adults, symptoms such as chest pain and shortness of breath may be more noticeable. Understanding these differences in symptoms helps in monitoring heart health in both children and adults.

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Diagnosis of Endocarditis

The diagnosis of endocarditis involves several steps to determine whether there is an infection in the heart. The doctor will perform a thorough examination that includes a medical history, laboratory tests, and imaging tests.

1. Physical Examination and Patient Medical History

A physical examination is the first step in diagnosing endocarditis. The doctor will check vital signs, including body temperature and blood pressure. During the examination, the doctor will also look for physical clues such as red spots on the skin or swelling in certain areas.

In addition, the patient’s medical history is very important. The doctor will ask about the symptoms you are experiencing, your previous health history, whether you have any heart conditions, and any medical or dental procedures that may pose a risk.

2. Blood Tests

Blood tests are a key component in diagnosing endocarditis. These tests are done to look for bacteria or fungi in the bloodstream. Usually, the doctor will take several blood samples at different times to increase the chance of detecting the pathogen.

In addition, blood tests can also measure signs of inflammation in the body, such as an elevated white blood cell count.

3. Imaging Tests

Imaging tests are used to get a clearer picture of the heart’s condition. Some commonly performed imaging tests include:

• Echocardiography: This is an ultrasound examination of the heart that produces detailed images of the heart’s structure, including the valves and endocardium. An echocardiogram is a very important diagnostic tool for detecting vegetations (masses formed by the infection) on the heart valves, which are a hallmark sign of endocarditis.
• Chest X-Ray: A chest X-ray can help detect an enlarged heart or fluid around the heart, which may indicate complications of endocarditis.

4. Other Diagnostic Procedures

Besides a physical examination, blood tests, and imaging, there are several other diagnostic procedures that may be done. One of them is a biopsy to take a tissue sample from the heart if necessary. However, this is rarely done.

The doctor may also perform procedures to look further for infection, such as cardiac catheterization, which helps look deeper inside the heart and helps the doctor diagnose endocarditis.

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Treatment of Endocarditis

The treatment of endocarditis depends on the type and severity of the infection, as well as the patient’s overall health. The main goals of treatment are to eliminate the infection, prevent complications, and improve heart function.

1. Long-Term Intravenous Antibiotics for Bacterial Infections: If endocarditis is caused by bacteria, the main treatment is antibiotics given through an intravenous (IV) infusion for several weeks, or even months. The length of treatment depends on the type of bacteria, the body’s response to treatment, and the severity of the infection. The antibiotic chosen will be matched to the type of bacteria causing the infection, as identified through blood cultures.
2. Antifungal or Antiparasitic Treatment for Non-Bacterial Infections: If endocarditis is caused by a fungus or parasite, treatment will involve antifungal or antiparasitic drugs, which are also usually given by intravenous infusion. The type and duration of treatment will be adjusted to the causative microorganism.

Supportive Care

In addition to the main treatment to fight the infection, patients may also need supportive care to manage symptoms and complications. This care may include:

• Medications to control fever and pain.
• Medications to support heart function.
• Oxygen therapy to help with breathing.
• Getting enough rest.

Heart Valve Repair or Replacement

In cases where endocarditis has damaged the heart valves, surgery may be needed. This may involve repairing the damaged heart valve or replacing it with an artificial valve. This procedure is usually done if the infection cannot be controlled with antibiotics or if the heart’s condition is unstable. The surgery will be planned very carefully by the medical team.

The Importance of Following Your Treatment Plan

It is very important to strictly follow the treatment plan given by your doctor, even if you already feel better. Stopping treatment too early can cause the infection to come back and increase the risk of serious complications, including permanent heart valve damage and heart failure.

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Preventing Endocarditis

Although endocarditis can occur suddenly, there are several steps you can take to reduce your risk of developing this disease.

1. Antibiotic Prophylaxis Before Certain Medical Procedures

For people at high risk of endocarditis (for example, those with a previous history of endocarditis, certain congenital heart defects, or artificial heart valves), the doctor may prescribe prophylactic (preventive) antibiotics before certain medical procedures, such as dental procedures, surgery, or other procedures that carry a risk of bacteria entering the bloodstream.

The goal is to prevent bacteria from entering the bloodstream and causing an infection in the heart. However, policies on the use of prophylactic antibiotics continue to evolve and are adjusted to current medical guidelines. Consulting a doctor is very important to determine whether you need prophylactic antibiotics.

2. Managing Underlying Medical Conditions

If you have a medical condition that increases the risk of endocarditis, such as a congenital heart defect or an artificial heart valve, it is important to manage the condition well by working closely with your medical team. Regular treatment and monitoring can help minimize the risk of complications, including endocarditis.

3. The Importance of Good Oral Hygiene

As mentioned earlier, dental and gum infections can be an entry point for bacteria into the bloodstream. Maintaining good oral hygiene by brushing and cleaning your teeth regularly, as well as visiting the dentist periodically, is very important to prevent mouth infections that can increase the risk of endocarditis.

4. Vaccination to Prevent Certain Infections

Vaccination can help prevent some infections that can cause endocarditis. Consult your doctor to find out which vaccines are right for you.

Preventing endocarditis is a multifaceted approach. By following the right preventive steps and consulting your doctor regularly, you can reduce your risk of developing this disease and keep your heart healthy.

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Complications of Endocarditis

Endocarditis that goes undiagnosed and is treated late can lead to various serious complications that have a major impact on heart health and on the patient’s overall medical condition. Here are some of the main complications that may occur as a result of endocarditis:

1. Heart Valve Damage: Infection of the heart lining can damage the heart valves. A damaged heart valve may leak (regurgitation) or narrow (stenosis), disrupting efficient blood flow. This can cause a range of problems, from shortness of breath to heart failure.
2. Heart Failure: When the heart valves are damaged or the heart itself is severely infected, the heart’s ability to pump blood throughout the body can drop drastically. This results in heart failure, a condition in which the heart cannot meet the body’s oxygen needs. Symptoms of heart failure can vary, from shortness of breath to swollen legs.
3. Stroke: Blood clots (thrombi) can form in the infected area of the heart. These clots can break loose and travel to the brain, blocking blood vessels and causing a stroke. A stroke can cause permanent brain damage, weakness in the body, and even death.
4. Pulmonary Embolism: Blood clots can also travel to the lungs, causing a blockage in the blood vessels of the lungs (pulmonary embolism). A pulmonary embolism can cause severe shortness of breath, chest pain, and even death.
5. Death: Unfortunately, endocarditis is a serious condition that can be fatal if not treated properly and promptly. Death can occur due to various complications such as heart failure, stroke, or pulmonary embolism.

Fast and accurate diagnosis and treatment are very important to minimize the risk of these serious complications. Consult a doctor right away if you have symptoms that suggest endocarditis.

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Conclusion

Endocarditis, an infection of the inner lining of the heart that is generally caused by bacteria, fungi, or parasites, is a serious condition that requires immediate attention. Common symptoms to watch for include fever, fatigue, muscle pain, and red spots on the skin. Diagnosis involves a physical examination, blood tests, and imaging to assess whether an infection is present.

The main treatment is intravenous antibiotic therapy, and in some cases, heart valve replacement or repair may be needed.

A quick response to the symptoms of endocarditis can save lives. Prompt and appropriate medical treatment can prevent serious complications, such as heart valve damage and heart failure. Contact a health professional right away if you have suspicious symptoms so you can get the diagnosis and care you need.

It is important for everyone to stay alert about heart health and recognize the warning signs of endocarditis. Knowing the early symptoms, such as a high fever that does not go away and extreme fatigue, can make a big difference in treatment outcomes. Educate yourself and the people around you about this risk to raise awareness and encourage proactive action for better heart health.

Remember that the information in this article is educational and is not a substitute for professional medical advice. If you have symptoms or risk factors for endocarditis or heart disease, consult a doctor right away or visit Heartology Cardiovascular Hospital for proper evaluation and care.