Figure 2.

A: Right anterior oblique view with the defibrillation lead in the right ventricular septum with the coil across the tricuspid annulus. The deflectable decapolar catheter is shown in the coronary sinus through the wide curve sheath traversing the severely dilated right atrium. B: Left anterior oblique view of the quadripolar left ventricular pacing lead positioned into a high lateral coronary sinus branch. C: Chest radiograph of the final lead positions in the heart. Severe right atrial enlargement can be appreciated with the significant prominence of the right heart border. D: Electrocardiogram following cardiac resynchronization therapy implant. Pacing is set up to fuse with the native QRS to obtain a width of 130 ms.