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The effect of norepinephrine on clinical and hemodynamic parameters in neonates with shock: a retrospective cohort study
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The effect of norepinephrine on clinical and hemodynamic parameters in neonates with shock: a retrospective cohort study
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The effect of norepinephrine on clinical and hemodynamic parameters in neonates with shock: a retrospective cohort study
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Journal Article
The effect of norepinephrine on clinical and hemodynamic parameters in neonates with shock: a retrospective cohort study
2022
Overview
There is limited data on the cardiovascular effects of norepinephrine (NE) in neonates. Our objective was to describe the clinical responses in neonates treated with NE infusion. This retrospective cohort study included neonates with evidence of shock and those who received NE infusion. Primary outcome: changes in mean blood pressure (MBP) at 6, 12, and 24 h post-initiation of NE. Secondary outcomes: Changes in (i) diastolic BP, systolic BP, and vasoactive inotrope score (VIS) at 6, 12, and 24 h, (ii) urine output after initiation of NE ii) pH, lactate, fraction of inspired oxygen (FiO2) after initiation of NE, and (iv) adverse outcomes. Fifty infants received NE with mean (SD) gestational age of 34.3 (4.3) weeks and a mean birth weight of 2215 (911) g. Treatment began at a median age of 36 (IQR: 15.2, 67.2) hours of life and lasted 30.5 (IQR: 12.7, 58) hours. MBP improved from 34.4 mm Hg (SD: 6.6) at baseline to 39.4 mm Hg (SD: 10.5, p < 0.001) at 6 h, to 39.6 mm Hg (SD: 12.1, p = 0.002) at 12 h and to 40.4 mm Hg (SD: 15.5, p = 0.004) at 24 h after NE initiation. Vasoactive inotrope score declined from 30 (20, 32) to 10 (4, 30; p < 0.001) at 24 h. Urine output improved within 24 h [1.5 ml/kg/h (0.5, 2.3) at baseline to 3 (1.9, 4.3) at 24 h; p = 0.04]. Oxygen requirement decreased after NE initiation.Conclusion: The use of NE appears to be effective and safe for treating systemic hypotension in neonates. Trial registration: Being a retrospective study, trial registration was not considered.What is known:• Dopamine has traditionally been used as the initial agent for treatment of neonatal hypotension.• Norepinephrine has recently been recommended as the first-choice vasopressor agent to correct hypotension in adults and pediatric patients, with insufficient data on the cardiovascular effects of NE in neonatesWhat is new:• Mean blood pressure improved significantly at 6, 12, and 24 h with reduction in vasoactive infusion score at 12 and 24 h after norepinephrine infusion.• No significant change in heart rate or abnormal abdominal adverse effects noted in this study.
Publisher
Springer Nature B.V
Subject
