Clinical Aspects of Newborns Haemodynamics in the Neonatal Period
Belkin A. Kizatova S. Ustsinovich Y.
2024Professionalnye Izdaniya
Reproductive Health Eastern Europe
2024#14Issue 180 - 97 pp.
The most significant and radical human adaptation to changes in living conditions occurs during the first breaths, when the foetus transitions from the intrauterine to the extrauterine environment with a significant restructuring of haemodynamics. In premature gestation, successful postnatal transition is due to a decrease in pulmonaryvascular resistance after lung opening, an increase in systemic vascular resistance as a result of placental constriction and subsequent closure of fetal communications. Redirection of blood flow, exposure to increased partial pressure of oxygen in the blood and neuroendocrine surge contribute to a significant redistribution of systemic and organ blood flow to meet the metabolic and functional needs of extrauterine life. In the preterm infant, several factors affect the normal physiological transition, including immaturity of organ systems, maternal condition and medications, timing of cord clamping and resuscitative manoeuvres, among others. Understanding this complex process is critical for nursing premature neonates, especially in the neonatal intensive care setting.
haemodynamic status , haemodynamics , preterm neonate
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Republican Scientific and Practical Center Mother and Child, Minsk, Belarus
Karaganda Medical University, Karaganda, Kazakhstan
Belarusian State Medical University, Minsk, Belarus
Republican Scientific and Practical Center Mother and Child
Karaganda Medical University
Belarusian State Medical University
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