Ascending fractional pulse pressure closely relating to large artery function

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Abstract
It is not known whether ascending fractional pulse pressure (PPf) is related to large artery function. This study was to evaluate whether PPf is associated with large artery function by augmentation index. A total of 190 subjects were enrolled (age range: 50 to 78 years) who had normal contractions, no local asynergy, and no history of myocardial infarction. The ascending aortic pressure was measured using a fluid-filled system. To quantify the relative magnitude of the pulsatile to mean artery pressure, we normalised the pulse pressure to the mean pressure and referred to this value as PPf and the association between the PPf and the augmentation index was investigated. Augmentation index showed significant associations with PPf by univariate analysis (R = 0.690, P < 0.001). The associations between PPf and the factors influencing large artery function were examined by multivariate analysis, and PPf revealed significant associations with age, mean aortic pressure, heart rate and type 2 diabetes (R2 = 0.477, P < 0.001). The results were that ascending aortic PPf is closely associated with large artery function detected by augmentation index.