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Cardiogenic shock is a severe disease caused by primary failure of cardiac function. Myocardial infarction is the most common cause of cardiogenic shock. It is common in adults but rare in children. An anomalous left coronary artery originating from the right sinus of Valsalva with an inter-arterial course between the pulmonary trunk and aortic root is a rare isolated congenital anomaly, with a high risk of sudden cardiac death, particularly in the context of exercise. Coronary computed tomography angiography (CCTA) allows non-invasive evaluation of congenital coronary anomalies in adults and children, including the location of the anomalous origin, details of the intramural segment, and the angle between the ostium and proximal segment. However, there are few data describing the role of cardiac magnetic resonance (CMR) children because of long scanning time and several contraindications. This case report describes an 8-year-old male child with cardiogenic shock caused by acute myocardial infarction. CCTA revealed a left coronary artery arising from the right sinus of Valsalva with inter-arterial course, and a moderately narrowed mid-portion of left main coronary artery, while CMR indicated myocardial infarction which located in left ventricular anterior, septal and lateral wall, together with intramyocardial hemorrhage (IMH) and microvascular obstruction (MVO). Combined application of CCTA and CMR could show coronary artery anomalies, myocardial viability, tissue characteristics, and would play an important role in the diagnosis and assessment.

cardiovascular diagnosis and therapy

Cardiogenic shock in an 8-year-old child secondary to anomalous coronary origin and course: a case report on the value of coronary computed tomography angiography and cardiac magnetic resonance