Biventricular pacing case that coronary sinus electrode stabilized by coronary stent

CRT is an effective treatment method for patients with severe drug refractory heart failure combined with intraventricular conduction disease that has been shown improve life quality and decrease mortality. In this issue, pacing of left ventricle is accomplished by coronary sinus (CS) electrode. The main difficulty of this technique is to reach the optimal lead position and to avoid electrode dislocation. 8-10% of the cases, CS lead implantation and stabilization may be impossible. CRT was planned at 66 year-old- male patient who has NYHA grade 3-4 symptoms and left bundle branch block. The case reported because of departing of the lead twice from posterolateral branch of CS, the lead was implanted in middle cardiac vein and stabilized by coronary stent.