• Akif Ündar, Allen R Kunselman, Ryan P Barbaro, Peta Alexander, Krishna Patel, and Neal J Thomas.
• Departments of Pediatrics, Penn State Hershey Pediatric Cardiovascular Research Center, Penn State College of Medicine, Penn State Health Children's Hospital, Hershey, PA.
• Pediatr Crit Care Me. 2023 Aug 1; 24 (8): 662669662-669.

ObjectivesTo investigate outcomes associated with conventional roller or centrifugal pumps during neonatal venovenous extracorporeal membrane oxygenation (ECMO). Our primary hypothesis is that in comparison with conventional roller-pump support, centrifugal pump use is associated with greater odds of survival. Our secondary hypothesis is that centrifugal pump use is associated with lesser odds of complications.DesignRetrospective cohort identified using the Extracorporeal Life Support Organization (ELSO) registry 2016 to 2020 dataset.SettingAll ECMO centers reporting to the ELSO registry.PatientsAll neonates (≤ 28 d) supported with venovenous ECMO and cannulated via right internal jugular vein using dual-lumen venovenous cannulas and polymethyl pentene membrane oxygenators.InterventionsNone.Measurements And Main ResultsA total of 612 neonates (centrifugal, n = 340; conventional roller, n = 272) were included in the analysis. Using a multivariable logistic regression model, centrifugal pump use-as opposed to roller pump use-was associated with lesser odds of survival (odds ratio [OR], 0.53; 95% CI, 0.33-0.84; p < 0.008). Thrombosis and clots in the circuit components were also associated with lesser odds of survival (OR, 0.28; 95% CI, 0.16-0.60; p < 0.001). We failed to show that hemolysis was an independent variable for survival (OR, 0.60; 95% CI, 0.31-1.19; p = 0.14). The primary diagnosis of neonatal aspiration/meconium aspiration is associated with more than seven-fold greater odds of survival (OR, 7.57; 95% CI, 4.02-15.74; p < 0.001).ConclusionsContrary to our hypotheses, conventional roller pump use was associated with greater odds of survival. While thrombosis and clots in circuit components were independent variables for lesser odds of survival, further research is needed better to understand the use of centrifugal pumps in neonatal practice.Copyright © 2023 by the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies.

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