although percutaneous transluminal coronary angioplasty ( ptca ) is useful for subsets of patients with ami ( for example , patients with anterior infarctions with persistent occlusion of the infarct-related artery after thrombolytic therapy and those with cardiogenic shock ) , a conservative strategy , including angiography and ptca only for postinfarction ischemia , is indicated for most patients with ami in whom initial thrombolytic therapy is apparently successful .
C0021308
infarct
C0022116
ischemia