P1.36 a Preliminary Study for the Evaluation of Large Artery Stiffness: A Non Contact Approach

was assessed by the estabilished foot to foot method (Complior Artech, Paris); PWVba and CAVI were obtained by a commercially available system (Vasera Fukuda, Tokyo), recording simultaneously brachial and tibial sphygmogram, ECG and phonocardiogram (PGC).CAVI is derived from the stiffness index Beta, according to Bramwell-Hill formula.Results: PWba was significantly correlated with PWVcf (r Z 0.785, p<0.001); in Bland Altman analysis, all points but two were included into AE 2SD of mean difference (mean differenceZ 0.804 AE 2.17 m/s).CAVI, PWVba, PWVcf were directly correlated with age (r Z 0.778, 0.595, 0.687; p<0.001) and pulse pressure (r Z 0.504, 0.300, 0.422; p<0.001).Conclusions: PWVba, an integrated index of aortic and femoro-tibial stiffness, shows good agreement with PWVcf.CAVI index seems to provide the best associations with age and pulse pressure.