Acute pericarditis after percutaneous coronary intervention mimicking inferolateral ST-elevation myocardial infarction.

Acute pericarditis is a rare complication of percutaneous coronary intervention (PCI). Here, we describe a case of PCI complicated by guidewire perforation and contrast extravasation. Acute pericarditis developed 36 hours after PCI procedure with fever and severe chest pain. Electrocardiogram showed ST elevation in inferior-lateral leads. However, the follow-up coronary angiography showed negative result and the symptom improved dramatically with the treatment of nonsteroidal anti-inflammatory drug treatment. Therefore, it is important for the clinician to differentiate acute myocardial infarction/acute stent thrombosis from this rare complication after PCI.