Coronary steal

Brief Review The term ‘coronary steal’ is basically diversion of coronary flow from one artery to another. It can be either between from one coronary territory to another or from coronary territory to a non coronary territory. Different such scenarios can be found in literature. Abnormal stress test due to large anomalous vessels supplying a large left atrial myxoma producing coronary steal has been reported [1]. Symptoms and abnormal stress test response resolved after resection of the tumour and ligation of the abnormal vessels. Another situation is coronary steal into a coronary cameral fistula connecting a coronary artery branch to the left ventricle [2]. Rupture of a coronary artery aneurysm into the right atrium in a patient with systemic lupus erythematosus and sepsis resulted in inferior wall myocardial infarction due to coronary steal [3]. Angina and positive stress test occurred in a patient with a fistula connecting left anterior descending coronary artery to left superior pulmonary vein [4]. Coronary steal and ischemia can occur due to a patent side branch in left internal mammary artery (LIMA) to coronary artery bypass graft (CABG) [5]. Coil embolization of the LIMA side branch produced relief of coronary steal and ischemia. Multiple coronary micro fistulae into the ventricles due to persistent Thebesian veins is another rare cause of coronary steal [6]. These cases are not amenable to any surgical measures, but respond to usual antianginal medication...
Source: Cardiophile MD - Category: Cardiology Authors: Tags: General Cardiology Source Type: blogs