In patients undergoing percutaneous cardiac interventions, perioperative transesophageal echocardiography is used routinely, often revealing an unusual pathology that was not previously detected with transthoracic echocardiography. In this e-challenge, the authors present a patient undergoing percutaneous transcatheter aortic valve replacement, with preprocedural transesophageal echocardiography revealing an abnormal color Doppler signal near the left main coronary artery during diastole.
Keywords: aortic valve disease; coronary blood flow; retrograde coronary flow; transcatheter aortic valve replacement; transesophageal echocardiography.
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