Coronary Venous Graft Stent Infection With Mycotic Aneurysm Formation

We present a case of coronary stent infection, an exceptionally rare complication following percutaneous coronary intervention associated with a high rate of morbidity and mortality. A 75-year-old woman presented with non-ST-segment elevation myocardial infarction who underwent percutaneous coronary intervention to a saphenous vein graft uneventfully. She re-presented with signs and symptoms of infection with growth of Staphylococcus aureus in blood culture. Multimodality imaging including 18F-fluorodeoxyglucose positron emission tomography-computed tomography and computed tomography angiography-confirmed coronary stent infection. The patient underwent redo cardiac surgery due to mycotic aneurysm formation. Coronary stent infection requires a high index of suspiscion to diagnose and the use of multimodality imaging and multidisciplinary approaches to manage this rare complication are essential. Despite this, the mortality rate is high at 18% to 44% reported in other series due to local complications such as mycotic aneurysm formation as in this case.