Resultados e evolução intra-hospitalar da angioplastia de artéria renal na hipertensão renovascular / Renal vascular hypertension and renal artery angioplasty outcome and in hospital evolution

Fundamentos: Não está definido: usar stent em todas as etiologias de hipertensão renovascular e variáveis independentes para sucesso técnico e clínico. Objetivos: Avaliar resultados e evolução intra-hospitalar da intervenção percutânea de artéria renal, determinando variáveis independentes para sucesso técnico e resposta favorável da hipertensão arterial. Métodos: Foram analisados 88 procedimentos subdivididos em: Grupo A (n=25) ocorridos entre 1981 e 1992, quando o stent não estava disponível; e Grupo N (n=63) de 1993 a 2006, utilizando-se balão e/ou stent. Os procedimentos também foram agrupados de acordo com as duas principais etiologias: aterosclerose (n=68) e displasia fibromuscular (n=11). Resultados: Foram maiores no grupos N: idade, localização ostial e sucesso técnico 98,4 por cento versus 84,0 por cento (p=0,0216), com evolução hospitalar similar e favorável e pressão arterial sistólica pré e pós-procedimento similares nos dois grupos, sendo a pressão arterial diastólica pré e pós-procedimento menor no Grupo N...

La clasificación de lesiones coronarias de la Society for Cardiac Angiography and Interventions, predice mejor el éxito de la angioplastía coronaria que la del American College of Cardiology/American Heart Association / Prediction of coronary angioplasty success using different coronary artery lesion scores

Background. The classification of coronary lesion complexity, using the American College of Cardiology/American Heart Association (ACC/AHA) is a predictor of balloon angioplasty success. Stents have improved results even in complex lesions. Aim. To compare the ACC/ AHA and the new Society for Cardiac Angiography (SCA&I) coronary lesion scores as predictors of angioplasty success. Patients and Methods. Al' consecutive angioplasty procedures (n=346, 456 lesions, 47 per cent stents) were prospectively analized from August 1996 to March 1999. Coronary lesions were classified using the ACC/AHA and SCA&I scores. Angiographic success was assesed and its multivariate predictors determined with logistic regression analysis. Results. According to the ACC/AHA score, angiographic success was 97, 92.7, 93.3, and 82.3 per cent in A, Bl, B2 and C lesions respectively (p=0.013). There only were significant differences in success between C and A, Bl or B2 lesions. According to the SCA&I score success was achieved in 97.3, 97.9, 75.8 and 33.3 per cent in nonCP, CP, nonCO and CO lesions respectively (P<0.001). With the SCA&I score statistically significant differences in angiographic success were found for all lesion score comparisons, except between nonCP and CP lesions. No other variables had predictive value for angiographic success. Conclusions. Coronary angioplasty angiographic success is better predicted by the new SCA&l lesion score than with the ACC/AHA lesion clasification in a group of patiens with frequent use of stents