Comparative Prospective Randomized Efficacy Testing of Different Guiding Catheters for Coronary Sinus Cannulation in Heart Failure Patients

Introduction: The efficacy of different shapes of guiding catheters for coronary sinus (CS) cannulation was evaluated at implant of a cardiac resynchronization therapy device that required transvenous placement of a pacing lead in a coronary vein on the left ventricle.