Heart rate variability in newborns
- Title:
- Heart rate variability in newborns
- Creator:
- Kamil Javorka, Lehotska, Z., Kozar, M., Uhrikova, Z., Branislav Kolarovszki, Michal Javorka, and Mirko Zibolen
- Identifier:
- https://cdk.lib.cas.cz/client/handle/uuid:f34aabcb-7c73-4f73-9d32-781b3c1cc1a3
uuid:f34aabcb-7c73-4f73-9d32-781b3c1cc1a3
issn:0862-8408 - Subject:
- Fyziologie člověka a srovnávací fyziologie, novorozenci, autonomní nervový systém, srdeční rytmus, newborns, autonomic nervous system, heart rate, premature newborn, heart rate variability, postnatal adaptation, 14, and 612
- Type:
- article, články, journal articles, model:article, and TEXT
- Format:
- print, bez média, and svazek
- Description:
- Heart rate (HR) and heart rate variability (HRV) in newborns is influenced by genetic determinants, gestational and postnatal age, and other variables. Premature infants have a reduced HRV. In neonatal HRV evaluated by spectral analysis, a dominant activity can be found in low frequency (LF) band (combined parasympathetic and sympathetic component). During the first postnatal days the activity in the high frequency (HF) band (parasympat hetic component) rises, together with an increase in LF band and total HRV. Hypotrophy in newborn can cause less mature autonomic cardiac control with a higher contribution of sympathetic activity to HRV as demonstrated by sequence plot analysis. During quiet sleep (QS) in newborns HF oscillations increase - a phenomenon less expressed or missing in premature infants. In active sleep (AS), HRV is enhanced in contrast to reduced activity in HF band due to the rise of spectral activity in LF band. Comparison of the HR and HRV in newborns born by physiological vaginal delivery, without (VD) and with epidural anesthesia (EDA) and via sectio cesarea (SC) showed no significant differences in HR and in HRV time domain parameters. Analysis in the frequency domain re vealed, that the lowest sympathetic activity in chronotropic cardiac chronotropic regulation is in the VD group. Different neonatal pathological states can be associated with a reduction of HRV and an improvement in the health conditions is followed by ch anges in HRV what can be use as a possible prognostic marker. Examination of heart rate variability in neonatology can provide information on the maturity of the cardiac chronotropic regulation in early postnatal life, on postnatal adaptation and in pathological conditions about the potential dysregulation of cardiac function in newborns, especially in preterm infants., K. Javorka, Z. Lehotska, M. Kozar, Z. Uhrikova, B. Kolarovszki, M. Javorka, M. Zibolen., and Obsahuje bibliografii
- Language:
- English
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/
policy:public - Source:
- Physiological research | 2017 Volume:66 | Number:Suppl 2
- Harvested from:
- CDK
- Metadata only:
- false
The item or associated files might be "in copyright"; review the provided rights metadata:
- http://creativecommons.org/publicdomain/mark/1.0/
- policy:public