Implantation of the left ventricular pacemaker lead after successful balloon angioplasty for coronary vein stenosis: a report of two cases

Stenosis in the coronary veins can cause failure of left ventricular pacemaker lead implantation, which is the cornerstone of cardiac resynchronization therapy. There are several case reports in which left ventricular pacing could be possible after successful elimination of coronary vein stenosis by stent implantation or cutting balloon angioplasty. We report two cases of left ventricular pacemaker lead implantation after successful balloon angioplasty for posterolateral and posterior vein stenoses, respectively.