Damned If You Drain, Damned If You Don't: A Case of Pericardial Decompression Syndrome.

Pericardial decompression syndrome (PDS) is an unusual clinical scenario with a reported incidence of 5% in all surgical or percutaneously managed pericardial tamponade patients. It is defined as a paradoxical hemodynamic instability leading to left ventricular (LV), right ventricular (RV), or biventricular dysfunction. An 84-year-old female with a history of a chronic pericardial effusion presented with symptoms of tamponade. She had had multiple prior admissions with an extensive and unyielding workup for the etiology of her pericardial effusion. During the present admission, a transthoracic echocardiogram (TTE) confirmed an augmenting pericardial effusion causing cardiac tamponade. She underwent a pericardial window with the removal of 1.2 liters of serous fluid. Postoperatively, she went into cardiogenic shock from right heart failure. Unfortunately, there also was re-accumulation of the pericardial effusion and worsening hemodynamic instability. Due to her poor prognosis, she was transitioned to comfort care. Although the etiology of PDS is unknown, it has been theorized to be caused by an imbalance of sympathetic-parasympathetic states after a rapid decompression. Currently, there are no clear guidelines or recommendations regarding the quantity of fluid that can be removed safely. More awareness leading to a more cautious and staged pericardial drainage might be the required solution.