Overestimation of pediatric cardiac output by thermal indicator loss

G. F. Maruschak, A. M. Potter, J. F. Schauble, M. C. Rogers

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


The accurate measurement of pediatric cardiac output by thermodilution requires that the quantity of cold indicator introduced into the central circulation be known. This study defines an important source of error in the correction factor for the amount of heat gained by small volumes of cold injectate during passage through pediatric catheter systems. This error may result in significant overestimation of cardiac output (as much as 59%) when blood at body temperature is withdrawn into the injection lumen of the pediatric catheter before the injection.

Original languageEnglish (US)
Pages (from-to)380-383
Number of pages4
Issue number2
StatePublished - 1982
Externally publishedYes

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)


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