Fig. 1From: Transcoronary sinus repair of a severely dilated and tortuous right coronary artery fistulized to coronary sinus complicated with tricuspid valve insufficiencyA–C Preoperative transthoracic cardiac ultrasound (TTE) showed severe tricuspid valve regurgitation, enlargement of right heart ventricle, moderate pulmonary artery systolic pressure, mild mitral valve regurgitation. Fistulous communication between the right coronary artery (RCA) and coronary sinus (CS) was associated with high pressure left-to-right shunt. D ECG showed no obvious sighs of myocardial ischemiaBack to article page