Coronary Sinus Stenting for the Management of Left Ventricular Lead Displacement during Resynchronization Therapy: A Report of Two Cases.

In patients with cardiac resynchronization therapy (CRT), loss of left ventricular (LV) stimulation occurs chiefly because of LV lead dislodgement. The occurrence rate of LV lead dislodgement in different reports is between 2% and 12% of patients. LV lead dislodgement precludes clinical improvement.