Heart Rate Variability during Hemodialysis in Two Ultrafiltration Profiles

Martínez-Memije, Raúl; Meza-Campos, S.; Morales-Alvarez, P. Ricardo; Becerra-Luna, Brayans; Pérez-Grovas, Héctor; Lerma, Claudia; Infante, Oscar

doi:10.1007/978-3-319-13117-7_137

Cited by 2 publications

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“…It has also been applied to ESRD patients before and after they undergo HD therapy. The results of these works showed higher SNS activity compared to PNS activity at the end of each HD session [25][26][27][28][29][30]. Similarly, Park et al performed a spectral analysis of HRV over segments acquired at the beginning, middle, and end of HD therapy [31].…”

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confidence: 99%

Heart Rate Variability Assessment Using Time–Frequency Analysis in Hypotensive and Non-Hypotensive Patients in Hemodialysis

et al. 2020

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Intradialytic hypotension occurs in 10–30% of hemodialysis (HD) sessions. This phenomenon affects the cardiovascular system’s functions, which are reflected in the activity of the autonomic nervous system (ANS). To indirectly assess the ANS during HD, we analyzed the mean R–R intervals and the spectral power of heart rate variability (HRV) from 20 end-stage renal disease patients divided into hypotensive and non-hypotensive groups. The spectrotemporal analysis was accomplished using short-time Fourier transform with 10 min epochs of HRV overlapping by 40%. The spectral power was divided into three segments according to high frequency, low frequency, and very low frequency bandwidths and averaged to fit quadratic regression models. The analysis of the mean R–R intervals showed significant differences between the groups (p = 0.029). The power variation over time was significant in each spectral band (p ≪ 0.05). The average power, maximum power, and time when the peak was reached differed for each band and between groups, showing the ability to correctly identify the decompensation of the ANS and discriminate between hypotensive and non-hypotensive patients. Additionally, the changes in the sympathovagal ratio were not significant and very scattered for the hypotensive group (p = 0.23) compared to the non-hypotensive group, where the changes were significant (p ≪ 0.05) and much less scattered.

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