Fenestrated Aneurysm of the Mitral Valve

Aneurysms of the cardiac valves remain rare. In this report, we describe the first case of a left ventricular to mitral valve aneurysm to left atrial shunt through a fenestrated aneurysm of the mitral valve diagnosed and successfully repaired under the guidance of transesophageal echocardiography. The transesophageal echocardiography provided substantial additional data to the transthoracic echocardiography, and was valuable in planning the surgical approach. Transesophageal echocardiography should be considered when clear‐cut transthoracic echocardiographic interpretation cannot be made in patients with mitral regurgitation. (ECHOCARDIOGRAPHY, Volume 8, September 1991)