Efficacy of Postdeployment Balloon Dilatation for Current Generation Stents as Assessed by Intravascular Ultrasound

Authors
Seung-Ho HurKatsuhiro KitamuraYoshihiro MorinoYasuhiro HondaMichael JonesKenneth S. KorrBernard Reen IIIChristopher J. CooperGary S. NiessLeonard ChristieWoodrow CoreyJohn MessengerPaul G. YockFrank CumminsPeter J. Fitzgerald
Department
Dept. of Internal Medicine (내과학)
Issue Date
2001
Citation
American Journal of Cardiology, Vol.88(10) : 1114-1119, 2001
ISSN
0002-9149
Abstract
Adjunctive balloon dilatation strategy has been shown to improve optimal stent deployment. As improvements in current stent designs evolve, less adjunctive balloon dilatation may be needed. However, few data currently exist to support this practice. We evaluated 88 native coronary lesions treated with single stent implantation (Nir, Tristar or S670). Serial intravascular ultrasound was performed after successful stent deployment and again after adjunctive balloon dilatation. To investigate further the precise expansion characteristics of the stents, serial volumetric intravascular ultrasound analyses were performed in 40 patients with automated pullback. After adjunctive balloon dilatation, minimal stent area increased significantly, from 6.4 2.1 to 7.4 2.2 mm2 (p <0.001). Volumetric analysis showed a corresponding increase in stent volume index (6.6 1.8 to 7.5 2.0 mm3/mm, p <0.001). In the analysis of cross sections at 0.5-mm axial intervals, the percentage of cross sections, where stent area was >80% of the average reference lumen area, increased from 51% to 78% (p <0.001). Similarly, the percentage of cross sections, where stent area was >90% of the average reference lumen area, increased from 29% to 56% (p <0.001) with postdilatation. Postdeployment highpressure balloon dilatation improved minimal stent area and volumetric expansion throughout the stented segment. 2001 by Excerpta Medica, Inc. (Am J Cardiol 2001;88:1114–1119)
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/34920
Appears in Collections:
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Internal Medicine (내과학)
Keimyung Author(s)
허승호
Full Text
https://linkinghub.elsevier.com/retrieve/pii/S0002914901020446
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