Immediate and one-year outcome of intracoronary stent implantation in small coronary arteries with 2.5-mm stents.
Am Heart J
; 140(6): 898-905, 2000 Dec.
Article
en En
| MEDLINE
| ID: mdl-11099994
ABSTRACT
BACKGROUND:
The role of coronary stenting in the treatment of stenoses in small coronary arteries with use of 2.5-mm stents is not well defined. METHODS ANDRESULTS:
Between January 1995 and August 1999, 651 patients with stenoses in small coronary arteries were treated with 2.5-mm stents (n = 108) or 2.5-mm conventional balloon angioplasty (BA) (n = 543). Patients who received treatment with both 2.5-mm and > or =3.0-mm stent placement or balloons were excluded. Procedural success and complication rates as well as 1-year follow-up outcomes were examined. Baseline clinical characteristics were similar between the two groups, except patients in the stent group were more likely to have hypertension and a family history of coronary artery disease and less likely to have prior myocardial infarction. Angiographic success rates were higher in the stent group (97.2% vs 90.2%, P =.02). In-hospital complication rates were comparable between the two groups. Among successfully treated patients, 1-year follow-up revealed no significant differences in the survival (96.2% vs 95.2%, P =.89) or the frequency of Q-wave myocardial infarction (0% vs 0.4%, P =.60) or coronary artery bypass grafting (8.4% vs 6.8%, P =.89) between the stent and BA groups, respectively. However, patients in the stent group were more likely to have adverse cardiac events (35.4% vs 22.1%, P =.05). Stent use after excluding GR II stent use, however, was not independently associated with reduced cardiac events at follow-up (relative risk 1. 3 [95% confidence interval 0.8-2.3], P =.30).CONCLUSIONS:
Intracoronary stent implantation of stenoses in small coronary arteries with 2.5-mm stents can be carried out with high success and acceptable complication rates. However, compared with BA alone, stent use was not associated with improved outcome through 1 year of follow-up.
Buscar en Google
Base de datos:
MEDLINE
Asunto principal:
Angioplastia Coronaria con Balón
/
Stents
/
Enfermedad Coronaria
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
Límite:
Aged
/
Female
/
Humans
/
Male
País/Región como asunto:
America do norte
Idioma:
En
Revista:
Am Heart J
Año:
2000
Tipo del documento:
Article
País de afiliación:
Estados Unidos