Entropy in description of vasovagal syndrome

In this paper we present an example of application of Approximate Entropy and Sample Entropy in analysis of vasovagal syndrome. In our research we conducted an analysis based on three types of data: RRI (RR intervals), SBP (systolic blood pressure) and TPR (total peripheral resistance), which were measured simultaneously with the head up tilt table test (HUTT). The HUTT tests were preformed with Task Force Monitor device. In the tilt test we examined 30 patients recommended to diagnosis of vasovagal syncope (V V S) because of their faint episodes.