Effect of jailed balloon technique on side branch protection in percutaneous coronary intervention for bifurcation lesions

Background Data comparing the jailed balloon technique(JBT)and conventional jailed wire technique(JWT)during percutaneous coronary intervention(PCI)for bifurcation lesions is scanty.Methods From January 2013 to June 2013,192 consecutive patients undergoing elective PCI for de novo Medina 1,1,1 bifurcation lesions were enrolled in this study.JBT and JWT were applied to protect the side branch(SB)at the discretion of the operator.Procedural outcomes were compared between the JBT and the JWT group.Results Seventy-four patients were treated with JBT and 118 with JWT.Proportion of patients achieving TIMI 3 flow in main branch(MB)was similar in both groups while in SB it was much lower in JWT group compared with JBT group(74.6%vs.93.2%,P=0.001).In addition,patients in JWT group showed higher incidence of periprocedural myocardial infarction(MI)compared with patients in JBT group(11.9%vs.2.7%,P=0.008).Similar tendency was observed in SB occlusion(18.6%vs.5.4%,P=0.009).No device-related complications were observed in both groups.Conclusion JBT is an effective and safe measure to protect the SB during PCI for bifurcation lesions.