The diagnosis of a left superior vena cava (LSVC) is important in planning the repair of a congenital heart defect as it may be the source of a sizeable right-to-left shunt. The medical record of 65 ...
Extract: The electrocardiograms of 26 patients with persistent left superior vena cava (SVC) draining into the coronary sinus were reviewed. Left axis of P waves between +15 and −29 degrees was ...
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