RÉSUMÉ
Objective To evaluate the efficacy of the ' buddy-in-jail ' technique applied to complex coronary artery lesions during percutaneous coronary intervention.Methods A total of 12640 PCI cases from 4 different hospitals admitted between June 2014 to June 2017 were reviewed. Among them, the balloons or stents were unable to be delivered into the lesions in 25 cases. The "buddy-in-jail"technique was applied in 21 of these 25 cases. According to the guidewires used, the 21 cases were divided into the hydrophilic coated guidewire group(n=9) and non-hydrophilic coated guidewire group(n=21). The rates of procedural success and complications were compared between the 2 groups.Results 18 cases(18/21)were successfully treated with the "buddy-in-jail " technique. The success rates were similar between patients using the same artery(9/11) as the "buddy" vessel patients using other arteries(9/10) (P=0.593). Procedural success rates were also similar between patients using hydrophilic-coated guidewires (7/9) and non- hydrophilic coated guidewires(11/12)(P=0.386). All the wires were successfully taken out without complication.Conclusions "Buddy-in-jail" technique offers a potential alternative approach for patients with difflculty in delivering the balloon or stent to the target lesion.