Coronary sinus aneurysm and left ventricular-coronary sinus fistula. Implantation of CRT device.

We describe a 72-year-old man referred for implantation of a cardiac resynchronization therapy device who had previously undergone repeated operations to replace the mitral valve. Retrograde venography of the coronary sinus (CS) to implant the left ventricular (LV) pacing lead revealed aneurysmal dilatation of the CS with LV-CS fistula that hindered-but did not prevent-complete implantation of the system.

Quadricuspid pulmonary valve identified by transthoracic echocardiography.

The quadricuspid pulmonary valve is a rare congenital anomaly. It tends to be clinically quiescent. Its diagnosis by two-dimensional echocardiography could be very difficult because of the anatomical features.

Long-term prognostic importance of transient left ventricular dilation during pharmacologic stress echocardiography.

Objectives: We sought to evaluate the prognostic significance of left ventricular (LV) transient ischemic dilation (TID) for patients with a positive stress echocardiogram (SE).

Background: TID during SE has been related to the presence of extensive coronary artery disease, but its long-term prognostic implications have not been reported.

Methods: In all, 99 consecutive patients with a positive SE comprised the study group.