Preditores independentes de resultados intra-hospitalares pós-implante de stent coronariano Independent predictors of in-hospital outcomes following coronary stent implantation

Abstract

OBJETIVO: Identificar preditores clínicos e angiográficos independentes, determinantes de resultados imediatos pós-implante de stent coronário. MÉTODOS: Novecentos e quarenta e seis pacientes com idade média de 61,04 ± 10,98 anos (31 a 91 anos), foram submetidos a implante de stents, sendo 580 do sexo masculino (61,3%). Sucesso do procedimento foi definido quando pelo menos um vaso era dilatado com sucesso, com estenose residual OBJECTIVE: To identify the clinical and angiographic predictors of early outcome following coronary stent implantation. METHODS: Nine hundred and forty-six patients (pt) [61.04 ± 10.98 years old, range 31 to 91] underwent stent implantation; 580 male (61.3%). Procedural success was defined when a pt had at least one vessel successfully dilated with a residual stenosis < 20%. Clinical success occured when a pt had at least one vessel successfully dilated without a major complication (MC) [death, myocardial infarction (MI), coronary artery bypass graft] during the hospital stay. Clinical and angiographic determinants of outcome were studied. All variables related to early outcome evaluated by univariate analysis were included in a multiple logistic regression analysis (MLR). RESULTS: Procedural success was achieved in 98.9%; clinical success in 95.7%; an unsuccessful uncomplicated outcome in 0.1% and major complications in 4.2%. By MLR, procedural success was related to restenotic lesion, calcification, and irregular contour. Clinical success was related to diabetes mellitus, cardiogenic shock, acute coronary syndromes, age, left ventricular dysfunction, calcification, and total occlusion. Major complications was predicted by diabetes mellitus, cardiogenic shock, acute coronary syndromes, age, multivessel disease, left ventricular dysfunction, calcification, long lesions, and total occlusions. Mortality was predicted by cardiogenic shock, acute coronary syndromes, age, arterial hypertension, and left ventricular dysfunction. CONCLUSION: These results suggest that early outcome was significantly affected by cardiogenic shock, left ventricular dysfunction, age, calcification, and total occlusion.

Keywords

• Stent
• fatores de risco
• análise multivariada
• arteriosclerose coronária
• angina pectoris
• Stent
• risk factors
• multivariate analisys
• coronary arterioclerosis
• angina pectoris