Study On The DK-Crush Versus Culotte Technique For The Treatment Of Coronary Artery Bifurcation Lesions

Objective:To investigate the differences between the double kissing crush techniqueand the culotte technique for the treatment of coronary artery bifurcation lesions withdrug-eluting stents.Methods:This was a retrospective case-control study,all patientsgrouped by the initial selection of treatment.From January2008to June2012,a totalof110patients were enrolled into this study(DKS,n=45;C=65).The primary end pointwas major adverse cardiac events(MACEs) after6months.At the same time,wecompared the CCS class of angina after6months and angiographic results after9-12months of the groups.Results:There were no significant differences berween patientsfrom the DKS and the C groups in terms of baseline clinical characteristics,orprocedural characteristics.Patients in the DKS group,compared with those in the Cgroups,were characterized by higher volume of contrastconsumed(350.89±56.16mlvs.285.54±37.25ml).The preoperative,postoperative and9-12months angiographicwere also similar in both groups of patients.The success rates of immediateangiography were100%in main vessel and side branch of both groups. A total of57patients had a quantitative coronary assessment after9-12months(DKS,n=25;C,n=32).The angiographic end-points of in-stent restenosis of main vessel and/or side branchafter9-12months were found in24.00%versus28.13%(P=0.73) and16.00%versus15.63%(P=0.97) in the DKS group and the C group,respectively.No MACEsoccurred in both of the two groups.The CCS classes of angina after6months wereClass I and II mainly,and there was no significant difference between the same levelsof the two groups.Conclusions：Both theCulotte and the DK-Crush technique wereassociated with similar and excellent clinical and angiographic results. Both them arefeasible and efficient in coronary bifurcation lesion during percutaneous coronaryintervention.