Etiology-constrictive pericarditis

(Circ 2011;124:1270)

• Any cause of pericarditis (~1–2% incidence overall after acute pericarditis)
• Highest risk w/ TB, bacterial, neoplastic, XRT, connective tissue, postcardiac surgery
• Viral/idiopathic, b/c most common cause of pericarditis, also account for signif proportion