Am J Perinatol 2021; 38(14): 1557-1564
DOI: 10.1055/s-0040-1714208
Original Article

Risk Factors for Brain Injury in Newborns Treated with Extracorporeal Membrane Oxygenation

Launice Melbourne
1   Division of Neonatology, Children's National Hospital, Washington, District of Columbia
2   Department of Pediatrics, The George Washington University School of Medicine, Washington, District of Columbia
,
Michael A. Wien
3   Division of Diagnostic Imaging and Radiology, Children's National Hospital, Washington, District of Columbia
,
Matthew T. Whitehead
2   Department of Pediatrics, The George Washington University School of Medicine, Washington, District of Columbia
3   Division of Diagnostic Imaging and Radiology, Children's National Hospital, Washington, District of Columbia
,
Michelande Ridore
1   Division of Neonatology, Children's National Hospital, Washington, District of Columbia
,
Yunfei Wang
4   Division of Biostatistics and Study Methodology, Children's National Research Institute, Washington, District of Columbia
,
Billie L. Short
1   Division of Neonatology, Children's National Hospital, Washington, District of Columbia
2   Department of Pediatrics, The George Washington University School of Medicine, Washington, District of Columbia
,
Dorothy Bulas
2   Department of Pediatrics, The George Washington University School of Medicine, Washington, District of Columbia
3   Division of Diagnostic Imaging and Radiology, Children's National Hospital, Washington, District of Columbia
,
An N. Massaro
1   Division of Neonatology, Children's National Hospital, Washington, District of Columbia
2   Department of Pediatrics, The George Washington University School of Medicine, Washington, District of Columbia
› Author Affiliations
Funding This study received financial support from Extracorporeal Life Support Organization.

Abstract

Objective This study aimed to assess the association of clinical risk factors with severity of magnetic resonance imaging (MRI) brain injury in neonatal extracorporeal membrane oxygenation (ECMO) patients.

Study Design This is a single-center retrospective study conducted at an outborn level IV neonatal intensive care unit in a free-standing academic children's hospital. Clinical and MRI data from neonates treated with ECMO between 2005 and 2015 were reviewed. MRI injury was graded by two radiologists according to a modified scoring system that assesses parenchymal injury, extra-axial hemorrhage, and cerebrospinal fluid spaces. MRI severity was classified as none (score = 0), mild/moderate (score = 1–13.5), and severe (score ≥ 14). The relationship between selected risk factors and MRI severity was assessed by Chi-square, analysis of variance, and Kruskal–Wallis tests where appropriate. Combinative predictive ability of significant risk factors was assessed by logistic regression analyses.

Results MRI data were assessed in 81 neonates treated with ECMO. Veno-arterial (VA) patients had more severe injury compared with veno-venous patients. There was a trend toward less severe injury over time. After controlling for covariates, duration of ECMO remained significantly associated with brain injury, and the risk for severe injury was significantly increased in patients on ECMO beyond 210 hours.

Conclusion Risk for brain injury is increased with VA ECMO and with longer duration of ECMO. Improvements in care may be leading to decreasing incidence of brain injury in neonatal ECMO patients.

Key Points

  • Veno-arterial ECMO is associated with more brain injury by MRI compared with veno-venous ECMO.

  • Longer duration of ECMO is significantly associated with severe brain injury by MRI.

  • Risk for neurologic injury may be decreasing over time with advances in neonatal ECMO.



Publication History

Received: 13 February 2020

Accepted: 09 June 2020

Article published online:
16 July 2020

© 2020. Thieme. All rights reserved.

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