A Case of Persistent Right Ventricular Failure after Rapid Decompression of a Large Chronic Pericardial Effusion.

• The authors report on PDS after pericardial drainage. • PDS is rare and can manifest as LV, biventricular, or RV failure. • Treatment is supportive, and recovery of ventricular function is expected in survivors. • The mechanisms are unclear, although many have been proposed. • Mortality is high, and PDS may occur even in small-volume pericardiocentesis.