Comparison of Angiographic Outcomes of Side Branch Ostium at Bifurcation Coronary Lesion between Two-stent and One-stent Techniques

• Published in: Journal of Korean medical science Vol. 30; no. 7; pp. 889 - 894
• Main Authors: Seo, Jae-Bin, Park, Kyung Woo, Lee, Hae-Young, Kang, Hyun-Jae, Koo, Bon-Kwon, Kim, Sang-Hyun, Kim, Hyo-Soo
• Format: Journal Article
• Language: English
• Published: Korea (South) The Korean Academy of Medical Sciences 01.07.2015; 대한의학회
• Subjects: Aspirin - therapeutic use; Cohort Studies; Coronary Angiography; Coronary Vessels - diagnostic imaging; Drug-Eluting Stents; Female; Heart - diagnostic imaging; Heart Septal Defects, Atrial - diagnosis; Heart Septal Defects, Atrial - diagnostic imaging; Humans; Male; Middle Aged; Myocardial Revascularization - methods; Original; Percutaneous Coronary Intervention - methods; Platelet Aggregation Inhibitors - therapeutic use; Retrospective Studies; Ticlopidine - analogs & derivatives; Ticlopidine - therapeutic use; Treatment Outcome; 의학일반; Side Branch; Drug-Eluting Stents; Bifurcation Lesion
• ISSN: 1011-8934; 1598-6357; 1598-6357
• DOI: 10.3346/jkms.2015.30.7.889

Although the favored strategy for coronary bifurcation intervention is stenting main vessel with provisional side branch (SB) stenting, we occasionally use two-stent strategy. The objective of this study was to investigate the angiographic outcome of SB ostium in two-stent group, compared with one-stent group. We analyzed 199 patients with bifurcation lesion who underwent percutaneous coronary intervention (PCI) with drug-eluting stent and follow up angiography. The patients were divided into one-stent group (167 lesions, 158 patients) and two-stent group (41 lesions, 41 patients). Prior to intervention, SB ostium minimal luminal diameter (MLD) was smaller in two-stent group than in one-stent group (1.08±0.55 mm vs. 1.39±0.60 mm; P=0.01). But, immediately after PCI, SB MLD of two-stent group became greater than that of one-stent group (2.41±0.40 mm vs. 1.18±0.68 mm; P<0.01). Six to nine months after PCI, this angiographic superiority in SB MLD of two-stent group persisted (1.56±0.71 mm vs. 1.13±0.53 mm; P<0.01), although there was larger late loss in two-stent group (0.85±0.74 mm vs. 0.05±0.57 mm; P<0.01). In terms of target lesion revascularization and target vessel revascularization rates, one-stent group showed better results than two-stent group. We could attain wider long term SB ostium after two-stent strategy than after one-stent strategy.