Cardiac resynchronization therapy (CRT) is an important treatment for patients with heart failure.1,2 In clinical practice, it is difficult to advance a left ventricular (LV) lead through narrow or tortuous vessels in some cases. In this report, we present a case of successful advancement of an LV lead into tortuous vessels. This was achieved by deep engagement of the coronary sinus with a cannulation catheter by applying the anchor technique using the Medtronic Attain Stability Quad lead. This useful technique for LV lead delivery has not been previously reported in the literature.