Key result
The neonatal cardiovascular system is highly vulnerable to fluid shifts and anesthetic drugs, necessitating careful management of blood pressure and cardiac output to prevent marginal hypoperfusion.
Highlights the critical need for comprehensive hemodynamic monitoring beyond oxygenation and heart rate in neonates undergoing anesthesia to prevent marginal hypoperfusion.
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Reinforces need for advanced neonatal hemodynamic monitoring during anesthesia; leaves open optimal thresholds and protocols for prospective study.
Development of the cardiovascular system through the last trimester of pregnancy and the subsequent neonatal period is profound. Morphological changes within the myocardium make the heart vulnerable to challenges such as fluid shifts and anesthetic drugs. The sensitivity of the myocardium to metabolic challenges and potential harm of drugs needed to maintain adequate blood pressure and cardiac output are highlighted. Traditional monitoring under anesthesia has focussed on maintaining oxygenation and heart rate in the neonate with less attention paid to blood pressure, cardiac output, and more importantly organ well-being. There is now a better understanding of the limitations of blood pressure homeostasis in the neonate and the potential consequences of marginal hypoperfusion. This article highlights some of these vulnerabilities particularly as they relate to anesthesia and surgery in the very young.
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Wolf et al. (2013) conducted a review in Neonatal cardiovascular system vulnerabilities during anesthesia. Anesthetic management was evaluated. The neonatal cardiovascular system is highly vulnerable to fluid shifts and anesthetic drugs, necessitating careful management of blood pressure and cardiac output to prevent marginal hypoperfusion.
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