Two cases where transesophageal echocardiography was useful in the diagnosis of stenosis of the coronary artery opening immediately after aortic valve implantation and in the therapeutic decision

Abstract

　We treated two patients in whom transesophageal echocardiography was helpful for diagnosis of stenosis of the left coronary artery opening after surgical aortic valve replacement (SAVR) and transcatheter aortic valve implantation (TAVI). Although their treatment is different, the measurement of coronary artery end-diastolic velocity by the pulse Doppler method in addition to the evaluation of coronary artery perfusion by color Doppler ultrasound before and after both SAVR and TAVI is helpful in investigating the cause of wall motion abnormalities and deciding on treatment.