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Spontaneous late thrombolysis of an occluded saphenous vein graft subsequent to acute myocardial infarction treated with percutaneous coronary intervention to the native culprit vessel.

A 67-year-old male with prior history of myocardial infarction and coronary artery bypass grafting (individual vein grafts to the left anterior descending artery [LAD] and right coronary artery) presented with an acute anterior ST elevation myocardial infarction and cardiogenic shock. The vein graft to the LAD was occluded with heavy thrombus burden and there was severe native CAD. Given the degree of thrombus burden and other anatomic considerations, percutaneous intervention with stenting was performed to the native proximal LAD. Three months later, after complaining of atypical chest pain, repeat angiogram revealed a spontaneous widely patent vein graft to the LAD and occluded proximal LAD.