Resultados clínicos inmediatos y alejados del implante de stents metálicos no recubiertos: ¿Se justifica un reemplazo total por los stents liberadores de drogas?
| Autor: | Mario Ibarra F, Alfredo Ramírez N, Sonia Callejas R, Eric Farias Ch, Gastón Dussaillant N, Miguel A Cumsille G, Sebastián García B, Ana María Silva J, Gabriel Frago M, Héctor Ugalde P |
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| Rok vydání: | 2007 |
| Předmět: |
Bare-metal stent
Coronary disease medicine.medical_specialty education.field_of_study business.industry Unstable angina medicine.medical_treatment Population Stent General Medicine equipment and supplies medicine.disease Surgery Restenosis Internal medicine Angioplasty Coronary stent medicine Cardiology Stents cardiovascular diseases Myocardial infarction Percutaneous transluminal coronary angioplasty education business |
| Zdroj: | Revista médica de Chile v.135 n.5 2007 SciELO Chile CONICYT Chile instacron:CONICYT |
| ISSN: | 0034-9887 |
| Popis: | Background: Since the introduction of stents in 1994, improved clinical results have boosted the development of coronary angioplasty in Chile. Drug eluting stents, that have a reduced rate of restenosis, are being increasingly used. Aim: To assess the acute and long-term results of bare metal stent implantation. Patients and Methods: Acute and long-term clinical, procedural and angiographic results were assessed in non acute myocardial infarction patients undergoing coronary stent implantation between August 1996 and December 2003. Results: During the study period, 932 patients aged 30 to 87 years (194 women) had at ¡east one stent implanted. Twenty two percent were diabetic, 33% had recent myocardial infarction, 53% unstable angina and 22% stable angina. Angiographic and clinical success were 99.6% and 98.2%, respectively. In hospital death was 0.5%. During a mean follow-up of 19.1 months, all cause mortality was 3.9%, cardiac death 1.9% and survival free of major cardiac ischemic events was 85.3%. Only 6.4% of lesions underwent target vessel revascularization (TVR). Independent predictors of TVR were previous surgery, ¡eft anterior descending artery, small post stent minimum luminal diameter. Ostial location, in-stent restenosis, and younger age were non significant predictors. Conclusions: Acute and long-term results of bare metal stents in this population were excellent. An intriguingly low rate of TVR was seen. Selective bare metal stenting should continue in lesions and patients with a low risk of clinical restenosis |
| Databáze: | OpenAIRE |
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