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The aim of this study was to determine arterial stiffness and the effect of stenting in patients with renal artery stenosis. We hypothesized that ostial renal artery stenosis is not only a marker of more pronounced atherosclerosis of large arteries, but is also a predictor of higher cardiovascular mortality. We enrolled 33 patients with renal artery stenosis refractory to pharmacological treatment and divided them according to the renal artery stenosis location, ostial and truncal (23 vs . 10 patients). We analyzed patient survival at five-year follow up. After the intervention and at six-month follow up, there was a significant decrease in blood pressure values, as well as in pulse wave velocity (PWV) and augmentation index. PWV was significantly lower in patients with truncal renal artery stenosis and these patients were significantly younger. Twelve patients with ostial and one patient with truncal renal artery stenosis (52% vs . 10%, p&lt;0.001) died from cardiovascular events. Our study is the first to confirm the predictive role of PWV and arterial stiffness in patients with renal artery stenosis, especially ostial one, and to emphasize its ability of detecting future higher incidence of cardiovascular events.

Ostial versus Truncal Renal Artery Stenosis: Predictor of Large Artery Atherosclerosis Severity and Higher Mortality