Delivery Mode Affects the Sympathetic Nervous System in Healthy Term Newborns
Data publikacji: 20 sie 2023
Zakres stron: 68 - 73
Otrzymano: 24 cze 2023
Przyjęty: 07 lip 2023
DOI: https://doi.org/10.2478/acm-2023-0010
Słowa kluczowe
© 2023 Marek Kozar et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Background
Spontaneous delivery represents an important way triggering the physiological mechanisms essential for a proper postnatal adaptation of a newborn. Autonomic nervous system (ANS) plays a crucial role in this process. There is insufficient data concerning the impact of different delivery mode on ANS in newborns. Therefore, we aimed to study the effect of delivery mode on sympathetic nervous system (SNS) in healthy term newborns measured by electrodermal activity (EDA).
Material & Methods
The study conducted 50 healthy full – term newborns divided into two groups: the spontaneous delivery group (SD, n=27) and the caesarean section group (CS, n=23). EDA parameters (SCL – tonic level of skin conductance; NS.SCRs – non – specific phasic responses of skin conductance) were evaluated during three measurements: 2nd (M1), 24th (M2), and 72nd (M3) hours of life.
Results
SCL significantly decreased during the first day of life (M1 vs. M2 – p < 0.001). The lowest NS.SCRs values were demonstrated in M1 in both groups with significant differences in CS group between measurements – M1 vs. M2 (p=0.001) and M1 vs. M3 (p=0.005). However, a significantly lower NS.SCRs was found in CS group (p=0.01) early after birth (M1).
Conclusion
Our findings revealed a reduced NS.SCRs indicating potential decreased „arousal“ in CS group – it seems that the attenuated „arousal“ could reflect the absence of physiological labor mechanisms as well as the effect of anesthesia leading to discrete early functional abnormalities in CS group. Further research is needed to validate these findings.