Comparison of Vascular Response to Zotarolimus-Eluting Stent vs Paclitaxel-Eluting Stent Implantation : Pooled IVUS Results From the ZoMaxx I and II Trials
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概要
- 論文の詳細を見る
Background: The ZoMaxx I and II trials were randomized controlled studies of the zotarolimus-eluting, phosphorylcholine-coated, TriMaxx stent for the treatment of de novo coronary lesions. The aim of this study was to compare the vessel response between zotarolimus- (ZES) and paclitaxel-eluting stents (PES) using intravascular ultrasound (IVUS). Methods and Results: Data were obtained from the ZoMaxx I and II trials, in which a standard IVUS parameter was available in 263 cases (baseline and 9-months follow up). Neointima-free frame ratio was calculated as the number of frames without IVUS-detectable neointima divided by the total number of frames within the stent. While an increase in vessel and plaque was observed in PES from baseline to follow up, there was no significant change in ZES. At follow up, % neointimal obstruction was significantly higher (15.4±8.8% vs 11.3±9.7%), and minimum lumen area at follow up was significantly smaller in ZES compared to PES. However, the incidence of IVUS-defined restenosis (maximum cross-sectional narrowing >60%) was similar in the 2 groups (3.2% vs 6.7%). Neointima-free frame ratio was significantly lower in ZES. There were 5 cases of late incomplete stent apposition in PES and none in ZES. Conclusions: These IVUS results demonstrate a similar incidence of severe narrowing between these 2 DES. There was a moderate increase in neointimal hyperplasia that was associated with a greater extent of neointimal coverage in ZES compared with PES. (Circ J 2010; 74: 2334-2339)
- 社団法人 日本循環器学会の論文
- 2010-10-25
著者
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Fitzgerald Peter
Stanford University Center for Research in Cardiovascular Interventions
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Yeung Alan
Stanford University School Of Medicine
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HONDA Yasuhiro
Center for Research in Cardiovascular Interventions, Stanford University
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WASEDA Katsuhisa
Center for Research in Cardiovascular Interventions, Stanford University
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AKO Junya
Center for Research in Cardiovascular Interventions, Stanford University
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FITZGERALD Peter
Center for Research in Cardiovascular Interventions, Stanford University
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Fitzgerald Peter
Center For Research In Cardiovascular Interventions Stanford University Medical Center
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Honda Yasuhiro
Center For Research In Cardiovascular Interventions Stanford University Medical Center
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Waseda Katsuhisa
Center For Research In Cardiovascular Interventions Stanford University
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Sudhir Krishnankutty
Abbott Vascular
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Honda Yasuhiro
Center For Research In Cardiovascular Interventions Stanford University
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WASEDA Katsuhisa
Stanford University Medical Center
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AKO Junya
Stanford University Medical Center
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ORMISTON John
Auckland City Hospital
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WHITBOURN Robert
St. Vincents Hospital, Melbourne
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HONDA Yasuhiro
Stanford University Medical Center
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Hasegawa Takao
Center For Research In Cardiovascular Interventions Stanford University
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Grube Eberhard
Heart Center Siegburg
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Ako Junya
Division Of Cardiovascular Medicine Stanford University Medical Center
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Honda Yasuhiro
Division Of Cardiovascular Medicine Stanford University School Of Medicine
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Hongo Yoichiro
Department Of Internal Medicine Yokohama Seamen's Insurance Hospital
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Gray William
Columbia University
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Yeung Alan
Stanford University
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HASEGAWA Takao
Stanford University
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GRUBE Eberhard
HELIOS Heart Center
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HENRY Timothy
Minneapolis Heart Institute Foundation at Abbott Northwestern Hospital
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OVERLIE Paul
Lubbock Heart Hospital
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SCHWARTZ Lewis
Abbott Laboratories
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CHEVALIER Bernard
Centre Cardiologique du Nord
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Fitzgerald Peter
Stanford Univ
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Honda Yasuhiro
Department Of Internal Medicine Yokohama Seamen's Insurance Hospital
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Henry Timothy
Minneapolis Heart Institute Foundation
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O'shaughnessy Charles
Elyria Memorial Hospital
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Honda Yasuhiro
Stanford Univ
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Whitbourn Robert
St. Vincents Hospital Melbourne
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