Changes in blood pressure and some other parameters in term infants during phototherapy
Authors:
L. Nandrážiová 1; K. Javorka 2,3; B. Czippelová 2,3; K. Maťašová 1
Authors‘ workplace:
Neonatologická klinika, Jesseniova lekárska fakulta v Martine, Univerzita Komenského v Bratislave, Univerzitná nemocnica Martin, Slovensko
1; Ústav lekárskej fyziológie, Jesseniova lekárska fakulta v Martine, Univerzita Komenského v Bratislave, Slovensko
2; Biomed, Martin, Slovensko
3
Published in:
Čes-slov Pediat 2019; 74 (8): 449-457.
Category:
Original Papers
Overview
hototherapy is the most frequent therapeutic intervention in neonatal wards during the first days of life. The beneficial effect of light on decreasing serum bilirubin level was first described by Cremer and colleagues in the 1950s. Since then, phototherapy has been used effectively in the treatment of severe hyperbilirubinaemia and has almost completely eliminated exchange transfusion. Phototherapy is a non-invasive method, but, in addition to decreasing bilirubin levels, it may affect some other function, e.g. organ perfusion, especially in skin, peripheral vascular resistance, blood flow distribution, heart frequency, systemic blood pressure and breathing. The next component of applied light is a certain influx of heat that warms the body surface up. There is a risk of exogenous overheating and increased water loss by skin.
We analyzed the effect of phototherapy on blood pressure and other parameters such as heart rate, respiratory rate, oxygen saturation, skin and rectal temperature. Comparison of control group (n=20) with patients with hyperbilirubinaemia and phototherapy (n=20) showed significant changes in some monitored parameters. Systolic, mean and diastolic blood pressure decreased significantly after the first hour of phototherapy (p=0.001; p=0.000; p=0.001), while at the end of the 2nd hour of phototherapy the drop was even more pronounced (p=0.002; p=0.000; p=0.003). During phototherapy, heart rate increased after 1 hour, even more significantly at the end of the 2nd hour of phototherapy (p=0.008; p=0.002), the respiratory rate also increased (p=0.033; p=0.015). These changes were accompanied by increasing skin and central (rectal) temperature. Based on the results, there are changes in some physiological parameters during phototherapy in newborns. Consistent monitoring of vital signs should therefore be an obvious part of care of the newborn during the treatment with blue light.
Keywords:
newborn – hyperbilirubinaemia – phototherapy – blood pressure
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Labels
Neonatology Paediatrics General practitioner for children and adolescentsArticle was published in
Czech-Slovak Pediatrics
2019 Issue 8
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