Pericardial Disease in Cardiac Amyloidosis: A Comprehensive Review

Area of Science:

• Cardiology
• Cardiovascular Pathology

Background:

• Pericardial involvement is frequent in cardiac amyloidosis, affecting up to 50% of patients.
• Pathophysiology involves elevated filling pressures, amyloid deposit inflammation, and renal dysfunction.
• Pericardial effusions can range from small to life-threatening, presenting as cardiac tamponade.

Purpose of the Study:

• To review the mechanisms, diagnosis, and management of pericardial pathology in cardiac amyloidosis.
• To highlight the prognostic significance of pericardial effusion in this patient group.
• To discuss the role of multimodality imaging in evaluating pericardial involvement.

Main Methods:

• Review of pathophysiological mechanisms.
• Discussion of clinical presentations, including cardiac tamponade and constrictive pericarditis.
• Emphasis on multimodality imaging techniques (echocardiography, CT, MRI).

Main Results:

• Pericardial effusions are common and associated with a poor prognosis in cardiac amyloidosis.
• While often small, effusions can lead to critical complications like cardiac tamponade.
• Constrictive pericarditis is a challenging diagnosis in this population due to overlapping restrictive cardiomyopathy signs.

Conclusions:

• Pericardial effusion recognition is crucial for risk stratification in cardiac amyloidosis.
• Specific treatment for effusions is rarely needed, but tamponade and constrictive pericarditis may require intervention.
• Multimodality imaging is essential for accurate evaluation and management.