Pericardial involvement in acute myocardial infarction

Area of Science:

• Cardiology
• Internal Medicine

Background:

• Early postinfarction pericarditis (EPIP) and post-myocardial infarction (MI) syndrome (Dressler's syndrome) are complications following myocardial infarction.
• The incidence of both conditions appears to be declining.
• EPIP typically presents 2-3 days post-MI with pericardial pain and friction rub, generally having a benign clinical course.

Purpose of the Study:

• To review the incidence, clinical presentation, and management of early postinfarction pericarditis and Dressler's syndrome.
• To clarify the diagnostic criteria and therapeutic approaches for these post-MI complications.

Main Methods:

• Review of existing literature on early postinfarction pericarditis and Dressler's syndrome.
• Analysis of clinical features, diagnostic findings, and treatment outcomes.

Main Results:

• EPIP is characterized by pericardial pain and friction rub, with a benign prognosis. Asymptomatic pericardial effusions are common (up to 28%) and do not contraindicate anticoagulation.
• Dressler's syndrome, occurring weeks to months post-MI, presents with fever, malaise, chest pain, and potential pericardial effusion or cardiac tamponade.
• Aspirin is the preferred treatment for EPIP; management for Dressler's syndrome includes aspirin, NSAIDs, or corticosteroids.

Conclusions:

• The incidence of EPIP and Dressler's syndrome is decreasing.
• Early recognition and appropriate management, primarily with aspirin, are crucial for favorable outcomes.
• Understanding the evolving incidence and management strategies for these post-MI syndromes is important for clinical practice.