,FINAL IMPRESSION: , The patient has significant cyanotic congenital heart disease physiologically with a single ventricle physiology and ductal-dependent pulmonary blood flow and the incidental supraventricular tachycardia now in the sinus rhythm with adequate ventricular function. 
,FINAL IMPRESSION : , The patient has significant cyanotic congenital heart disease physiologically with a single ventricle physiology and ductal - dependent pulmonary blood flow and the incidental supraventricular tachycardia now in the sinus rhythm with adequate ventricular function .