Pericardial Effusion and Tamponade
Recurrence
Usually weeks to months after initial episode
Management is same
Constrictive<unk> 
Related to etiology; increased risk with bacterial<unk> , rare with viral/idiopathic etiology
Also can be caused by radiation exposure
Restrictive picture with pericardial calcifications on CXR, thickened on TTE
Treat with pericardial window
Usually weeks to months after initial episode
Management is same
Related to etiology; increased risk with bacterial<unk> , rare with viral/idiopathic etiology
Also can be caused by radiation exposure
Restrictive picture with pericardial calcifications on CXR, thickened on TTE
Treat with pericardial window
Pericarditis
Cardiac
Constrictive pericarditis
ST-segment elevation myocardial infarction 
Myocarditis 
Post-MI 
Myocarditis
Previous MI with recurrent ischemia in same area