Constrictive pericarditis: clinical and pathophysiologic characteristics

Area of Science:

• Cardiology
• Internal Medicine

Background:

• Constrictive pericarditis is an uncommon condition with diverse etiologies, including idiopathic, post-cardiac surgery, radiation therapy, and tuberculosis.
• The disease involves the heart being encased by a rigid pericardium, leading to impaired diastolic filling, ventricular interdependence, and respiratory pressure dissociation.

Purpose of the Study:

• To summarize the pathophysiology, diagnosis, and management of constrictive pericarditis.
• To highlight the diagnostic challenges and the role of various imaging modalities.

Main Methods:

• Review of literature on constrictive pericarditis.
• Discussion of diagnostic tools including cardiac catheterization, echocardiography, Doppler measurements, and MRI.
• Emphasis on differentiating constrictive pericarditis from restrictive cardiomyopathy (RCM).

Main Results:

• Constrictive pericarditis presents insidiously with systemic venous congestion.
• Cardiac catheterization, echocardiography, Doppler, and MRI are crucial for diagnosis, often obviating the need for thoracotomy.
• Medical management provides only temporary symptom relief.

Conclusions:

• Accurate diagnosis of constrictive pericarditis is achievable with modern imaging techniques.
• Pericardiectomy is the definitive treatment for constrictive pericarditis, as medical management is insufficient for long-term improvement.