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Rev. bras. cardiol. invasiva ; 21(4): 367-372, out.-dez. 2013. graf, tab
Article in Portuguese | LILACS | ID: lil-703689

ABSTRACT

INTRODUÇÃO: Vários estudos foram realizados para definir preditores de eventos adversos pós-intervenção coronária percutânea (ICP). Pacientes cujo fluxo fracionado de reserva do miocárdio (FFR) pós-procedimento é < 0,90 apresentam índice de eventos cardíacos adversos maiores em 6 meses pelo menos 3 vezes maior do que aqueles cujo FFR é ≥ 0,90. Este estudo teve por objetivo identificar fatores clínicos, angiográficos e do procedimento associados a FFR pós-ICP < 0,90. MÉTODOS: Foram incluídos 193 pacientes (256 lesões) tratados entre 2004 e 2005, e o FFR foi medido antes e depois da ICP em todos os vasos tratados. Os pacientes foram divididos nos grupos FFR < 0,90 e FFR ≥ 0,90. Análise multivariada por regressão logística foi utilizada para determinar as razões de chances (odds ratio - OR) ajustadas. RESULTADOS: Foi possível obter o FFR em todas as lesões. Não se observou diferença nos parâmetros clínicos entre os dois grupos de pacientes. Houve diferença em alguns parâmetros angiográficos e do procedimento, porém, ao aplicarmos o modelo de regressão logística, a única variável que se associou com FFR pós-ICP < 0,90 foi o tratamento da artéria descendente anterior (OR = 12,1; IC 95% 6,4-22,9; P < 0,01). CONCLUSÕES: A única variável preditora de FFR pós-ICP < 0,90 foi o tratamento da artéria descendente anterior.


BACKGROUND: Several studies were performed to define predictors of adverse events after percutaneous coronary intervention (PCI). Patients whose post-procedure myocardial fractional flow of reserve (FFR) is < 0.90 have an incidence of major cardiac events at 6 months at least 3 times higher than those whose FFR is ≥ 0.90. The aim of this study was to identify clinical, angiographic and procedure-related factors associated with a post-PCI FFR < 0.90. METHODS: One hundred and ninety-three patients (256 lesions) treated between 2004 and 2005 were included, and FFR was measured before and after PCI in all of the treated vessels. Patients were divided into groups with FFR < 0.90 and FFR ≥ 0.90. Logistic regression multivariate analysis was used to determine the adjusted odds ratio (OR). RESULTS: FFR was measured in all lesions. No difference was observed in clinical parameters between groups. There were differences in angiographic and procedure-related parameters, however, when the logistic regression model was used, the only variable associated to post-PCI FFR < 0.90 was the treatment of the left anterior descending artery (OR, 12.1; 95% CI, 6.4-22.9; P < 0.01). CONCLUSIONS: The only predictor of a FFR < 0.90 after PCI was the treatment of the left anterior descending artery.


Subject(s)
Humans , Male , Female , Middle Aged , Coronary Artery Disease/physiopathology , Coronary Stenosis/complications , Coronary Stenosis/therapy , Percutaneous Coronary Intervention/adverse effects , Percutaneous Coronary Intervention/methods , Stents , Cardiac Catheterization , Coronary Angiography , Multivariate Analysis , Retrospective Studies
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