P968Comparison of re-proximal optimizing technique with kissing balloon technique in provisional stenting during primary percutaneous coronary intervention

Abstract

Abstract Background Re-proximal optimizing technique (rePOT) (POT, side branch inflation and final POT) is a new provisional coronary bifurcation stenting technique which has better results in bench tests in comparison with kissing balloon inflation (KBI) techique. A clinical study showed that rePOT had beneficial effects in terms of strut malapposition, side branch obstruction and stent geometry. But it has not been compared with KBI technique especially in patients with ST segment elevation myocardial infarction (STEMI) who underwent primary percutaneous coronary intervention (p-PCI). Purpose The aim of our study is to compare the new rePOT technique with a known and widely used provisional stenting technique in a real-world special patient population in terms of clinical and technical aspects Methods 51 patients with STEMI who underwent p-PCI and needed provisional side branch stenting were enrolled in a tertiary center. Patients who needed “two stent strategy” at the beginning of procedure were deferred. Results Results were shown in Table 1. In-hospital death, contrast induced acute kidney injury, side branch dissection, need for side branch stenting and acute stent thrombosis were lower in rePOT group but there was no statistically significance. Table 1 rePOT group (n=23) KBI group (n=28) p value Age 51.6±11.7 51.2±9.4 0.87 Male gender 18 (78.3%) 24 (85.7%) 0.16 Diabetes Mellitus 3 (13%) 6 (21.4%) 0.43 Hypertension 5 (21.7%) 5 (17.9%) 0.73 Ejection fraction 46.8±10.6 44.8±8.4 0.43 Killip class>2 1 (4.3%) 4 (14.3%) 0.47 Stent type (DES) 21 (91.3%) 23 (82.1%) 0.34 Side branch dissection 3 (13%) 8 (28.6) 0.18 Side branch stenting 3 (13%) 6 (21.4%) 0.43 In-hospital death 2 (8.7%) 3 (10.7%) 0.81 CI-AKI 3 (13%) 6 (21.4%) 0.43 Acute stent thrombosis 0 2 (7.1%) 0.19 DES: Drug eluting stent; CI-AKI: contrast induced acute kidney injury. Conclusion To the best of our knowledge this is the first study which compares the new rePOT technique with KBI in patients with STEMI who underwent p-PCI and needed provisional coronary bifurcation stenting. Although results are similiar in terms of clinical and technical aspects, rePOT may be a useful and user-friendly technique in such a complex and emergent procedure. Acknowledgement/Funding None