Pericardial decompression syndrome with acute right ventricular failure: a case series

Area of Science:

• Cardiology
• Critical Care Medicine

Background:

• Pericardial decompression syndrome (PDS) is an uncommon complication following pericardial drainage for cardiac tamponade.
• It presents with paradoxical hemodynamic instability, potentially mimicking heart failure or pulmonary edema.

Observation:

• This case series details two patients experiencing PDS after pericardial drainage (pericardiocentesis and surgical pericardiostomy).
• Both cases demonstrated acute right ventricular failure as a key feature post-tamponade release.

Findings:

• The study supports acute right ventricular dilatation leading to left ventricular compression as the primary mechanism for hemodynamic compromise in PDS.
• Echocardiographic findings and clinical course provide insights into this poorly understood syndrome.

Implications:

• PDS is likely underreported and associated with significant morbidity and mortality.
• Understanding the mechanism of right ventricular failure is crucial for managing PDS.