Abstract
Background
Acute pulmonary hypertension (aPH) in newborns can be life threatening and challenging to manage. In newborns with refractory aPH, there is currently limited therapeutic agents.
Methods
Retrospective single-center cohort study in newborns less than one month old who were treated with vasopressin for a minimum of one hour in the context of refractory aPH in the neonatal and pediatric intensive care units of a tertiary university center between 2016 and 2022. The objective was to evaluate the efficacy and safety of vasopressin in newborns as an adjuvant treatment for refractory aPH.
Results
Twenty-five patients met inclusion criteria. In patients who received vasopressin, oxygenation index improved from 28.4 to 14.4 (p = 0.004) after twelve hours of continuous infusion. Oxygen requirements (FiO2) decreased from 0.91 to 0.50 (p = 0.004) and mean arterial pressure increased from 41 to 51 mmHg (p = 0.001). In our cohort, 68% of patients presented an episode of hyponatremia (serum sodium <130 mmol/L).
Conclusions
The use of vasopressin may be associated with improvement in oxygenation and hemodynamic status of neonatal patients with aPH refractory to initial therapy. Further prospective studies are needed to establish the safety profile of vasopressin in newborns, particularly in preterm infants.
Impact
-
Vasopressin may be an effective cardiotropic agent to improve oxygenation and hemodynamic status in newborns with acute pulmonary hypertension.
-
Careful monitoring of serum sodium levels are warranted in newborns who are receiving vasopressin infusion.
-
This provides additional evidence for the consideration of vasopressin in newborns with acute pulmonary hypertension refractory to inhaled nitric oxide.
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Data availability
The datasets generated during and/or analysed during the current study are available from corresponding author on reasonable request.
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Acknowledgements
The authors would like to thank the Department of Pharmacy and the Department of Pediatrics of the Center Mère-Enfant Soleil for their support in carrying out this study, Mahukpe Narcisse Ulrich Singbo for the statistical analysis and the Plateforme de la recherche Clinique at CHU de Quebec. Funding for statistical support was provided from Centre de recherche clinique du CHU de Québec.
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Each author has met the Pediatric Research authorship requirements. S.O. contributed to conception and design, acquisition of data, analysis and interpretation of data, drafting of the article and final approval of the version to be published. C.D. contributed to conception and design, drafting of the article and final approval of the version to be published. G.M. contributed to conception and design, drafting of the article and final approval of the version to be published A.P. contributed to conception and design, drafting of the article and final approval of the version to be published. A.H. contributed to conception and design, drafting of the article and final approval of the version to be published.
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Ouellet, S., Drolet, C., Morissette, G. et al. Vasopressin in newborns with refractory acute pulmonary hypertension. Pediatr Res (2024). https://doi.org/10.1038/s41390-023-02995-3
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DOI: https://doi.org/10.1038/s41390-023-02995-3