A new technique for cannulation of the coronary sinus from the femoral vein.

Previous techniques for cannulation of the coronary sinus have required entry into the right atrium from the superior vena cava. We describe a new technique for cannulation of the coronary sinus from the femoral vein using a standard, unmodified Simmons II catheter. This method was successful in 97% of the patients attempted. The method for using this catheter from the femoral route is described.