Clinical and angiographic predictors of XXXX stenting.

@entity8 @entity256
Percutaneous stenting has become the procedure of choice for treatment of obstructive @entity8 . @entity256 , however, continues to be in the range of 15-25% of treated vessels. In this study, clinical and angiographic predictors of @entity256 were assessed. Of 132 vessels included, fifty-eight were followed for @entity256 using duplex Doppler (n=15), conventional angiogram (n=33) or multislice computed tomography (CT) angiogram (n=10). Fifteen vessels (26%) met the criteria for @entity256 (lesion > or =50% by conventional or CT angiography or >60% by Doppler) at a follow-up range of 2-20 months (5% <2 months; 68% 3-12 months; 27% 13-20 months). Cox Regression analyses were performed for selected variables. A p-value <0.05 was considered statistically significant. History of smoking [odds ratio (OR), 6.6:1; p=0.005] and time to evaluate for @entity256 were independent predictors of the occurrence of @entity256 . Also, a high @entity256 rate (40%) was seen in vessels < or =4 mm in diameter (n=20) in contrast to larger vessels (n=38) >4 mm (18.4%). Although statistical significance was not reached (possibly because of the small sample size), clinically this is a significant finding. A significant drop in systolic (-15.6 mmHg) and diastolic (-6.2 mmHg) blood pressures was seen following @entity8 stenting with no significant change in the total number of antihypertensives used (2.4 versus 2.5 for pre- and post-renal stenting, respectively). CONCLUSION: @entity256 occurred in 26% of successfully stented RAs. History of smoking, time to evaluate for @entity256 and small vessels (< or =4 mm) were predictors of its occurrence. Clinically, a significant drop in blood pressure was seen with @entity8 stenting without a change in the total number of antihypertensives on follow-up.
