Pericarditis

Disease Name: Pericarditis (Pericarditis)

1) Disease Description (Causes and Symptoms)

• Definition: A condition in which inflammation develops in the pericardium, the membrane surrounding the heart.
• Main causes
  • Idiopathic/viral (in many cases, the cause is unknown or presumed to be viral)
  • Bacterial (rare but severe), tuberculous (particularly important in areas where tuberculosis is prevalent)
  • After myocardial infarction (especially Dressler syndrome), thoracic radiation, trauma, or surgery
  • Connective tissue diseases such as systemic lupus erythematosus and rheumatoid arthritis
  • Kidney failure, cancer (such as lung, breast, or lymphatic system cancers), and certain medications (e.g., hydralazine, procainamide)
• Brief pathophysiology
  • Inflammation of the pericardium can cause fluid to accumulate (pericardial effusion), and rapid accumulation can compress the heart (cardiac tamponade). Repeated inflammation can lead to scarring and progression to constrictive pericarditis.
• Main symptoms
  • Characteristic chest pain (sharp, worsened by breathing, coughing, or lying down, and relieved by leaning forward)
  • Shortness of breath, fever, and general malaise
  • In cardiac tamponade: low blood pressure, shock, weak pulse, jugular venous distension, and other symptoms of cardiac tamponade

2) Treatment Methods and Precautions

• Initial management
  • Mild, typical nonbacterial cases: combination therapy with a nonsteroidal anti-inflammatory drug (NSAID, e.g., aspirin or ibuprofen) and colchicine (effective in reducing recurrence)
  • If pain and inflammation persist, corticosteroids (for specific causes or when unresponsive to NSAIDs) — when using corticosteroids, consider the risk of recurrence and side effects
• Cause-specific treatment
  • Bacterial: appropriate antibiotic treatment (according to culture and susceptibility results)
  • Tuberculous: antituberculosis treatment (antituberculosis drugs)
  • Autoimmune: immunosuppressants (such as corticosteroids)
• Procedures/Surgery
  • Pericardiocentesis: performed when cardiac tamponade is present or when examination of the effusion is needed for diagnosis
  • In cases that are persistent, recurrent, constrictive, or scarred: partial or total pericardiectomy
  • Pericardial window: a surgical or interventional procedure to drain recurrent effusions
• Hospitalization and monitoring
  • Observation for the first 24–48 hours (especially assessment of the risk of hypotension and tamponade)
  • Electrocardiography and echocardiography to assess the amount of effusion and signs of tamponade
• Lifestyle management and precautions
  • Avoid excessive activity and strenuous exercise during the acute phase
  • Anticoagulants may increase the risk of bleeding into the pericardium (hemorrhagic effusion), so they should be used cautiously under a doctor’s judgment when necessary
  • If emergency symptoms such as fever, shortness of breath, or low blood pressure occur, visit the emergency room immediately
• Complications
  • Cardiac tamponade (emergency), recurrent pericarditis, and progression to constrictive pericarditis

3) Checkpoints Before an Outpatient Visit (Items to Prepare and Things to Check)

• Items to prepare

  • A list of all medications currently being taken (prescription drugs, over-the-counter medications, and supplements)
  • Previous test results (copies of electrocardiograms, chest X-rays, and echocardiograms, if available)
  • A recent symptom diary (date of onset, characteristics and intensity of pain, changes related to posture and breathing, and presence or absence of fever)
  • Medical history (myocardial infarction, heart surgery, history of tuberculosis, radiation therapy, and autoimmune disease)
  • Allergies and whether anticoagulants are being taken

• Examples of items to check yourself before the visit

  • Does the chest pain change depending on your posture?
  • Have you experienced shortness of breath, fainting, or dizziness?
  • Have you recently had an infectious illness (upper respiratory tract infection) or been exposed to tuberculosis?
  • Have you had systemic symptoms such as fever, weight loss, or night sweats?

• Examples of information to show the doctor at the outpatient visit (prepare it in simple sentences)

  • “When did the chest pain start, and what makes it worse?”
  • “Have you recently had a myocardial infarction or chest surgery?”

4) Examples of General Questions to Ask the Doctor

• What are the main side effects of this medication (e.g., an NSAID, colchicine, or corticosteroid)?
• Is hospitalization or observation necessary? What symptoms require going to the emergency room?
• How high is the risk of recurrence, and what can I do to reduce it?
• Should I stop taking anticoagulants (or my current medications)?
• When can I resume daily activities and exercise?

5) Examples of Disease-Specific Questions

• If my chest pain improves with changes in posture (such as leaning forward), is this characteristic of pericarditis? What additional tests are needed to confirm it?
• Is pericardiocentesis (removal of the fluid) necessary in my situation, and what are the risks and benefits of the procedure?
• If I am in an area where tuberculosis is prevalent, are tests for tuberculous pericarditis (such as hemoptysis evaluation, chest CT, and tuberculosis testing) necessary?
• If I am taking anticoagulants, is my risk of cardiac tamponade higher? Do I need to adjust my medication?

Note: This information is general medical information. An individual’s diagnosis and treatment should be determined through consultation with the treating doctor.