This study describes the clinical, anatomic, echocardiographic, and Doppler
features of 13 patients with mitral valve aneurysms. Eleven patients had d
efinitive criteria for infective endocarditis. Transesophageal echocardiogr
aphy was superior to conventional echocardiography in detecting and assessi
ng aneurysms. Patients with heart failure required surgery. Echocardiograph
ic detection of this lesion should not be, by itself, an immediate surgical
indication.