[Comparative study between the therapeutic effects of surgical myocardial revascularization and coronary angioplasty in equivalent ischemic situations: analysis through myocardial scintigraphy with 99mTc-Sestamibi]. / Estudo comparativo entre os efeitos terapêuticos da revascularização cirúrgica do miocárdio e angioplastia coronária em situações isquêmicas equivalentes: análise através da cintilografia do miocárdio com 99mTc-Sestamibi.
Arq Bras Cardiol
; 85(2): 92-9, 2005 Aug.
Article
em Pt
| MEDLINE
| ID: mdl-16113846
ABSTRACT
OBJECTIVE:
To assess the myocardial ischemic load to previous and after myocardial revascularization.METHODS:
Ninety-six randomized patients, carriers of multivessel coronary artery disease, stable angina, preserved left ventricular function, and exercise-induced myocardial ischemia treated with revascularization (SMR) or coronary angioplasty (TCA). Myocardial scintigraphy with 99mTc-Sestamibi was performed prior to and 6 months after myocardial revascularization.RESULTS:
The SMR determined a significant greater index of complete revascularization (p=0.001), an increase in the number of maximum ergometric tests (p=0.001) and reduction in the number of positive ergometric tests with exercise angina (p=0.018). Both procedures provided an important improvement in the functional class of angina (p=0.001), an increase in the average value of double peak product (p=0.009), and the time of exercise tolerance (p<0.001), besides the reduction in the average value of the summed of exercise score (p<0.001) and the difference of the summed of scores (p<0.001) in both groups.CONCLUSION:
TCA and SMR did not differ significantly concerning the reduction of myocardial ischemic load 6 months after the procedure. The myocardial revascularization was more complete with the SMR than the TCA, but it did not represent a significant factor for the reduction myocardial ischemic load.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Isquemia Miocárdica
/
Vasos Coronários
/
Revascularização Miocárdica
Tipo de estudo:
Clinical_trials
/
Observational_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Pt
Revista:
Arq Bras Cardiol
Ano de publicação:
2005
Tipo de documento:
Article