Prognostic Significance of the Renal Resistive Index After Renal Artery Revascularization in the Context of Flash XXXX .

@entity1 @entity712 @entity101 @entity6 @entity3126 @entity204 @entity65
PURPOSE: To evaluate the prognostic value of the renal resistive index (Ri) after renal artery revascularization in the context of flash @entity3126 . METHODS: Between 2000 and 2008, 43 @entity1 (mean age 72.1  10.9 years; 23 @entity1 ) underwent renal artery angioplasty/stenting in the context of flash @entity3126 . Intrarenal Ri was assessed using duplex ultrasound. The majority (97.7%) of @entity1 had @entity101 , and nearly half (46.5%) had @entity6 . For this retrospective analysis, the @entity1 were divided into 2 groups according to the median Ri (<0.8 and >= 0.8) of the population. A Cox proportional hazards model was used to identify predictors of all-cause mortality (primary endpoint) and rehospitalization for @entity712 ; the results are presented as the hazard ratio (HR) and 95% confidence interval (CI). The mean follow-up was 49.8  30.6 months. RESULTS: There was no difference between the groups regarding clinical characteristics. A high Ri was associated with the risk of all-cause @entity204 (HR 2.54, 95% CI 1.15 to 5.60, p=0.021). This relationship was still statistically significant after adjustment for age, gender, @entity6 , glomerular filtration rate, and treatment with a renin-angiotensin system inhibitor (HR 1.74, 95%CI 1.08 to 2.81, p=0.032). A high Ri was also associated with @entity65 in unadjusted and adjusted analyses. In contrast, a high Ri was not associated with the risk of rehospitalization for @entity712 . CONCLUSION: After renal artery revascularization for flash @entity3126 , a high intrarenal Ri is independently associated with all-cause mortality. Determination of the intrarenal Ri after this procedure may be useful for identifying at-risk @entity1 .
