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  • Title: Invasive aortic pulse wave velocity as a marker for arterial stiffness predicts outcome of renal sympathetic denervation.
    Author: Okon T, Röhnert K, Stiermaier T, Rommel KP, Müller U, Fengler K, Schuler G, Desch S, Lurz P.
    Journal: EuroIntervention; 2016 Aug 05; 12(5):e684-92. PubMed ID: 27497368.
    Abstract:
    AIMS: A recurrent finding of trials on renal sympathetic denervation is a certain percentage of non-responders. The aim of this study was to examine the influence of arterial stiffness to predict response. METHODS AND RESULTS: Eighty-eight patients were included in the study. Arterial stiffness was measured by invasive pulse wave velocity. Antihypertensive medication had to be unchanged during follow-up. Ambulatory blood pressure measurement (ABPM) was used to record blood pressure before and six months after denervation. Fifty-eight patients without changes in medication were included in the final analysis. Responders (n=37; blood pressure reduction -12.8±6.4 mmHg) had a significantly lower pulse wave velocity (14.4±4.4 m/s versus 17.7±4.5 m/s; p=0.009) compared to non-responders (n=21; blood pressure reduction +3.0±4.5 mmHg; p<0.001 for comparison with responders). In multivariate analysis, invasive pulse wave velocity was the only significant predictor of blood pressure reduction after denervation (odds ratio 1.15, 95% confidence interval [CI] 1.014-1.327; p=0.03). Patients with increased stiffness were older (p=0.001), had a higher prevalence of diabetes (p=0.008), more often had isolated systolic hypertension (p=0.007), and had a higher invasive pulse pressure (p<0.001). CONCLUSIONS: Patients with lower pulse wave velocity showed a significantly better response to denervation. These findings emphasise that pulse wave velocity might be used as a selection criterion for renal denervation.
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