Successful Primary PCI in a Patient with Acute Myocardial Infarction and Cardiogenic Shock with Super-dominant Right Coronary Artery and Absent Left Circumflex Artery

Super-dominant right coronary artery and the absent left circumflex artery is a rare congenital coronary anomaly, with only a few cases reported in the literature. Left anterior descending artery arises directly from the left anterior coronary cusp. Rare coronary anomalies are sometimes encountered during primary percutaneous interventions, which may lead to changes in the course of action. We report a case of a 38-year-old patient admitted with acute anterior wall myocardial infarction and cardiogenic shock. Coronary angiography revealed super-dominant right coronary artery and absent left circumflex artery. There was thrombotic occlusion of the proximal left anterior descending artery. The patient underwent successful primary percutaneous intervention of the left anterior descending artery with a good result, was discharged after 5 days. Our case also shows the importance of taking coronary angiogram of the contralateral artery first, before taking the shoot of the infarct-related artery.