Ciaran O'Brien1, Julie Monteagudo2, Christine Schad2, Eva Cheung3, William Middlesworth4. 1. College of Physicians and Surgeons, Columbia University, New York, NY, United States. 2. Department of Surgery, College of Physicians & Surgeons, Columbia University, New York, NY, United States. 3. Department of Pediatrics, Division of Critical Care Medicine, Columbia University, New York, NY, United States. 4. Division of Pediatric Surgery, Department of Surgery, Columbia University College of Physicians and Surgeons and Morgan Stanley Children's Hospital of New York-Presbyterian, New York, NY, United States. Electronic address: wm61@cumc.columbia.edu.
Abstract
PURPOSE: It is currently unclear whether centrifugal pumps cause more hemolysis than roller pumps in extracorporeal membrane oxygenation (ECMO) circuits. The aim of this study was to help answer that question in pediatric patients. METHODS: A limited deidentified data set was extracted from the international multicenter Extracorporeal Life Support Organization (ELSO) registry comprising all reported ECMO runs for patients 18years or younger between 2010 and 2015. Logistic regression was used to evaluate a possible association between hemolysis and pump type, controlling for patient demographics, circuit factors, and complications. RESULTS: 14,776 ECMO runs for 14,026 patients had pump type recorded. Centrifugal pumps were employed in 60.4% of ECMO circuits. Hemolysis was a reported complication for 1272 (14%) centrifugal pump runs and for 291 (5%) roller pump runs. 1755 (20%) centrifugal pump runs reported kidney injury as compared to 797 (14%) roller pump runs. In the full logistic regression, the odds of hemolysis were significantly greater for runs using centrifugal pumps (OR 3.3, 95% CI 2.9-3.8, p<0.001). CONCLUSIONS: In this retrospective analysis of a large international data set, the use of centrifugal pumps was associated with increased rates of hemolysis, hyperbilirubinemia, and kidney injury. TYPE OF STUDY: Retrospective cohort study. LEVEL OF EVIDENCE: Level III.
PURPOSE: It is currently unclear whether centrifugal pumps cause more hemolysis than roller pumps in extracorporeal membrane oxygenation (ECMO) circuits. The aim of this study was to help answer that question in pediatric patients. METHODS: A limited deidentified data set was extracted from the international multicenter Extracorporeal Life Support Organization (ELSO) registry comprising all reported ECMO runs for patients 18years or younger between 2010 and 2015. Logistic regression was used to evaluate a possible association between hemolysis and pump type, controlling for patient demographics, circuit factors, and complications. RESULTS: 14,776 ECMO runs for 14,026 patients had pump type recorded. Centrifugal pumps were employed in 60.4% of ECMO circuits. Hemolysis was a reported complication for 1272 (14%) centrifugal pump runs and for 291 (5%) roller pump runs. 1755 (20%) centrifugal pump runs reported kidney injury as compared to 797 (14%) roller pump runs. In the full logistic regression, the odds of hemolysis were significantly greater for runs using centrifugal pumps (OR 3.3, 95% CI 2.9-3.8, p<0.001). CONCLUSIONS: In this retrospective analysis of a large international data set, the use of centrifugal pumps was associated with increased rates of hemolysis, hyperbilirubinemia, and kidney injury. TYPE OF STUDY: Retrospective cohort study. LEVEL OF EVIDENCE: Level III.
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