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The Common Causes of Pericarditis: Infections, Injuries, and More

Introduction

Pericarditis is swelling of the thin sac around your heart, called the pericardium. This blog will focus on pericarditis causes. You will learn what causes pericarditis, common pericarditis risk factors, and the main reasons for pericarditis. Understanding these causes can help you know when to seek help.

Overview of Pericarditis

Pericarditis means the lining around the heart becomes inflamed. This can lead to chest pain and other symptoms.

Infectious Causes of Pericarditis

Many cases of pericarditis happen because of infections. Infections can make the pericardium swell. Here are the main types:

  • Viral infections: Most often, viruses like the common cold, flu, or COVID-19 can cause pericarditis. According to the CDC, viral infections are the leading cause in many countries.
  • Bacterial infections: Sometimes, bacteria such as tuberculosis or strep can infect the pericardium. This is less common but can be serious.
  • Fungal infections: Rarely, fungi can infect the heart lining, especially in people with weak immune systems.

    • In summary, infections are a major reason for pericarditis in both children and adults.

    Non-Infectious Causes of Pericarditis

    Not all pericarditis cases are due to infections. Other causes include:

  • Autoimmune diseases: Sometimes, the body’s defense system attacks the pericardium by mistake. Diseases like lupus or rheumatoid arthritis can cause this.
  • Injury or trauma: A blow to the chest or heart surgery can lead to pericarditis.
  • Medications: Certain drugs, such as some cancer treatments or blood thinners, may trigger pericarditis as a side effect.
  • Cancer: Tumors near the heart or cancer that spreads can cause swelling of the pericardium.
  • Metabolic disorders: Kidney failure or high levels of urea in the blood can also lead to pericarditis.

    • Therefore, it is important to know that pericarditis can have many different causes beyond infections.

    Risk Factors and Who Is at Risk

    Some people are more likely to develop pericarditis. Key pericarditis risk factors include:

  • Recent viral or bacterial infection
  • Autoimmune diseases like lupus
  • Chest injury or recent heart surgery
  • Cancer or cancer treatment
  • Kidney failure
  • Use of certain medications

    • Additionally, men between ages 20 and 50 are more often affected, but anyone can get pericarditis. According to the World Health Organization, people with weak immune systems are at higher risk.

    Summary of Key Points

  • Pericarditis is swelling of the heart’s lining.
  • Common causes include viral, bacterial, and fungal infections.
  • Non-infectious causes are autoimmune diseases, trauma, medications, cancer, and metabolic problems.
  • Risk factors include infections, certain diseases, injuries, and some medicines.

    • Knowing the reasons for pericarditis can help you understand your risk.

    When to Seek Help

    If you have symptoms or concerns about pericarditis, consult a healthcare professional for personalized advice. Early care can help prevent problems.