Racial variations in extracorporeal membrane oxygenation use following congenital heart surgery

Titus Chan1, Cindy S Barrett2, Yuen Lie Tjoeng1

  • 1Division of Pediatric Critical Care Medicine and The Heart Center, Seattle Children's Hospital, University of Washington, Seattle, Wash.

Insights

Black and other race children face higher mortality after congenital heart surgery. Disparities in Extracorporeal Membrane Oxygenation (ECMO) use contribute to these increased risks and impact survival rates.

Area of Science:

  • Pediatric Cardiology
  • Health Disparities Research
  • Critical Care Medicine

Background:

  • Racial and ethnic disparities are documented in pediatric congenital heart surgery outcomes.
  • Extracorporeal membrane oxygenation (ECMO) is a critical support system for critically ill children post-congenital heart surgery, influencing survival.
  • Variations in ECMO utilization across racial/ethnic groups may underlie survival disparities.

Purpose of the Study:

  • To investigate racial and ethnic variations in postoperative Extracorporeal Membrane Oxygenation (ECMO) use following congenital heart surgery.
  • To determine the association between race/ethnicity, ECMO utilization, and hospital survival rates in pediatric congenital heart surgery patients.

Main Methods:

  • Analysis of the Pediatric Health Information Systems dataset from 2004-2015, including all children undergoing congenital heart surgery.
  • Utilized multivariable, multinomial regression models to assess outcomes: survival without ECMO, survival with ECMO, death with ECMO, and death without ECMO.
  • Adjusted for covariates to identify independent associations between race/ethnicity and mortality risk.

Main Results:

  • Out of 130,860 patients, 95.4% survived without ECMO, while 1.3% survived with ECMO, 1.3% died with ECMO, and 1.9% died without ECMO.
  • Black patients (OR 1.22) and patients of other races (OR 1.36) had significantly increased odds of mortality compared to white patients.
  • Black patients (RR 1.31) and patients of other races (RR 1.37) showed increased risk of death without ECMO support, as did those with governmental insurance (RR 1.24).

Conclusions:

  • Black children and children of other races experience higher mortality rates following congenital heart surgery.
  • Disparities in survival are linked to differential utilization of Extracorporeal Membrane Oxygenation (ECMO) across racial and ethnic groups.
  • Addressing ECMO utilization variations is crucial for mitigating racial/ethnic disparities in congenital heart surgery outcomes.
Abstract

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