Balloon crush: treatment of bifurcation lesions using the crush stenting technique as adapted for transradial approach of percutaneous coronary intervention

Pitt O Lim, Vladimír Dzavík
Catheterization and Cardiovascular Interventions 2004, 63 (4): 412-6
The recent advent of drug-eluting stents has allowed the crush stenting technique to be adopted, thus simplifying the treatment of bifurcation coronary artery lesions. However, this can only be achieved in 7 Fr or greater guiding catheters, hence precluding most transradial percutaneous coronary interventions that are usually undertaken using 6 Fr or less guiding catheters. We assessed the feasibility of balloon stent crush as a stepwise procedure in achieving bifurcation crush stenting in 6 Fr transradial percutaneous coronary interventions. Since it is not possible to place two stents through a 6 Fr guiding catheter, we have adapted the crush stenting technique by initially placing a stent in the side branch and a balloon in the main vessel. The side branch stent is then deployed against the main vessel balloon that is later inflated, crushing the side branch stent within the main vessel. The main vessel is then stented and the side branch recrossed for kissing inflations. Seven patients (five males; age range, 47-78 years) with bifurcation lesions were treated using the above-described technique without major complications. Balloon crush of the side branch stent were successfully achieved in all cases without balloon trapping. In six cases where side branch recrossing was attempted, all were successful and kissing balloon inflations were undertaken in five cases. We have demonstrated that the modified crush stenting technique is feasible and can be safely adapted for use in a 6 Fr transradial percutaneous coronary intervention approach.

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