The role of the centrifugal pump in hemolysis during neonatal extracorporeal support

John V. McDonald, Thomas P. Green, Robin H Steinhorn

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

While the use of the centrifugal vortex ECMO pump as an alternative to a roller-occlusion pump offers distinct advantages, unacceptable hemolysis may occur during its use in newborn infants. The authors studied 87 consecutive neonatal patients with respiratory failure supported with venoarterial ECMO using a centrifugal vortex pump. Baseline mean plasma free hemoglobin level for all patients during the first 48 hours of bypass was 31.3 ± 3.1 mg/dl. In 51 patients, an abrupt rise in the plasma free hemoglobin occurred. In 48 of 51 patients, the pump head alone was changed at 91.9 ± 6.6 hours after initiation of bypass. Mean plasma free hemoglobin decreased to baseline values following pomp head change. The authors could not determine any factors that distinguished the infants who developed hemolysis from those who did not. Changing only the pump head provides a simple approach to hemolysis encountered during use of the centrifugal vortex pump in newborn infants.

Original languageEnglish (US)
Pages (from-to)35-38
Number of pages4
JournalASAIO Journal
Volume43
Issue number1
DOIs
StatePublished - Feb 1997
Externally publishedYes

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Centrifugal pumps
Hemolysis
Pumps
Hemoglobins
Hemoglobin
Head
Vortex flow
Newborn Infant
Plasmas
Respiratory Insufficiency

ASJC Scopus subject areas

  • Biophysics
  • Bioengineering

Cite this

The role of the centrifugal pump in hemolysis during neonatal extracorporeal support. / McDonald, John V.; Green, Thomas P.; Steinhorn, Robin H.

In: ASAIO Journal, Vol. 43, No. 1, 02.1997, p. 35-38.

Research output: Contribution to journalArticle

McDonald, John V. ; Green, Thomas P. ; Steinhorn, Robin H. / The role of the centrifugal pump in hemolysis during neonatal extracorporeal support. In: ASAIO Journal. 1997 ; Vol. 43, No. 1. pp. 35-38.
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