'Retrograde' balloon-assisted tracking to rescue a kinked guide catheter in the radial artery

After a successful percutaneous coronary intervention to the left anterior descending artery, the guide catheter was pulled without a wire inside and so was kinked in the radial artery. It was not possible to pull or push the kinked catheter due to severe pain and fear of radial artery injury/perforation due to 'razor effect' of the two sharp edges of the kinked segment. Retrograde balloon-assisted tracking technique was used through femoral access, 7 F guide catheter, percutaneous transluminal coronary angioplasty wire and inflated 2.5x15 mm balloon partially outside the catheter tip to facilitate moving the kinked catheter to the aorta where unravelling was possible using a snare and a 0.035' wire. This technique helped to keep control of both catheters, and avoid the 'razor effect' and radial artery injury. It could be suggested as the initial solution to sort similar problems due to its safety and efficacy.