Comparison of Early and Long-Term Outcomes in Balloon Angioplasty and Provisional Stenting.
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Accession number;01A0695924
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| Title;Comparison of Early and Long-Term Outcomes in Balloon Angioplasty and Provisional Stenting. |
| Author;
ANZAI HITOSHI
(Fujijukogyokempo Sogootabyoin Junkankika)
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Journal Title;Journal of the Medical Society of Toho University
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Journal Code:G0654A
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ISSN:0040-8670
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VOL.48;NO.3;PAGE.244-256(2001)
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| Figure&Table&Reference;FIG.2, TBL.9, REF.35 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;We compared the early and long-term (approximately 2 years after discharge) clinical outcomes of 123 patients with 277 lesions treated with plain old balloon angioplasty (POBA) alone and 65 patients with 97 lesions treated with stenting during the period from June 1996 to September 1998. In this period, provisional stenting was attempted as a treatment strategy in coronary angioplasty. Angiographic findings were analyzed by quantitative coronary angiography (QCA). Lesions were subdivided into 2 groups according to reference diameter (RD): The large vessel group (L group, RD.GEQ.2.8mm) and the small vessel group (S group, RD<2.8mm). In early outcomes, bail-out stentings for acute closure were successful in 12 of 15 procedures, which reduced the early complication rate. However, coronary artery stent migrations occurred in 2 procedures, a result which could increase the early complication rate. Moreover, stenting tended to increase side branch occlusion, which resulted in more non-Q wave infarction than POBA. In analysis of long-term outcomes, there were no significant differences between POBA and stenting in either mortality or the incidence of adverse cardiac events. In QCA analysis, there were no statistical differences in the restenosis rate or target lesion revascularization rate (TLR) between POBA and stenting in either the L or S groups. However, in the L group, the post minimal lumen diameter (MLD) after stenting and at the follow up examination was significantly larger than that obtained with POBA. Therefore, the restenosis rate and TLR of stenting were relatively lower than with POBA (23.3% and 16.3%, respectively). By contrast, in the S group, post MLD after stenting was significantly larger than POBA, but there was no significant difference in MLD at follow up examination between POBA and stenting. The restenosis rate and TLR of stenting were identical with those of POBA and extremely high (42.9% for both).... (author abst.) |
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