Abstract

RUIZ DONDERIZ, Alexander; SIXTO PEREZ, Arahi  and  HERNANDEZ CACERES, José Luis. Estimation of cardiovascular age from 2 minute tachograms via Recurrence Quantification Analysis. RCIM [online]. 2016, vol.8, n.2, pp.178-185. ISSN 1684-1859.

Various attempts have been reported to estimate the cardiovascular age from different electrophysiological signals. Proposals published are hampered by drawbacks for application in clinical practice. We have proposed to estimate cardiovascular age from two- minutes tachograms using a non-linear measure (logarithm of the percentage of determinism, log (DET)) obtained from Recurrence Quantification Analysis. In a sample of 62 allegedly healthy subjects,9 to 79 years an excellent correlation between age and log (DET)) r = 0.7981 - comparable to the best values reported in the literature using more expensive techniques- was obtained. From these results the way is proposed to estimate the normative values for a presumably healthy population. It is concluded that from two-minutes tachograms it is possible to obtain a good estimate of the cardiovascular age. Recurrence Quantification Analysis of is an appropriate way to estimate cardiovascular age, and reduction in the percentage of determinism with age may reflect a greater contribution of stochastic regulation of heart rate components in the elderly subject.

Keywords : heart rate variability; recurrence quantification analysis; tachogram; determinism; cardiovascular age.

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