Continuous thermodilution cardiac output measurement in sheep

M. Yelderman, M. D. Quinn, R. C. McKown, R. C. Eberhart, M. L. Dollar

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

A technique has been developed to continuously measure cardiac output by means of the principles of thermodilution. Pulmonary artery catheters were modified by placing a 10 cm filament near the usual injectate port. Small amounts of heat were infused according to a randomly repeating binary on-off sequence. The distal blood temperature was recorded and cross-correlated with the heat waveform to produce a dilution curve and calculate cardiac output. The technique was compared with bolus thermodilution in seven sheep. Cardiac output ranged from 1.5 to 13.2 L/min, and heart rate varied from 59 to 180 beats/min. The linear regression between the data obtained by the two methods is represented by the equation y = 1.00x + 0.13; the correlation coefficient, R, is 0.97, and the p value is <0.0001.

Original languageEnglish (US)
Pages (from-to)315-320
Number of pages6
JournalJournal of Thoracic and Cardiovascular Surgery
Volume104
Issue number2
StatePublished - 1992

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Thermodilution
Cardiac Output
Sheep
Hot Temperature
Pulmonary Artery
Linear Models
Catheters
Heart Rate
Temperature

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Surgery

Cite this

Yelderman, M., Quinn, M. D., McKown, R. C., Eberhart, R. C., & Dollar, M. L. (1992). Continuous thermodilution cardiac output measurement in sheep. Journal of Thoracic and Cardiovascular Surgery, 104(2), 315-320.

Continuous thermodilution cardiac output measurement in sheep. / Yelderman, M.; Quinn, M. D.; McKown, R. C.; Eberhart, R. C.; Dollar, M. L.

In: Journal of Thoracic and Cardiovascular Surgery, Vol. 104, No. 2, 1992, p. 315-320.

Research output: Contribution to journalArticle

Yelderman, M, Quinn, MD, McKown, RC, Eberhart, RC & Dollar, ML 1992, 'Continuous thermodilution cardiac output measurement in sheep', Journal of Thoracic and Cardiovascular Surgery, vol. 104, no. 2, pp. 315-320.
Yelderman M, Quinn MD, McKown RC, Eberhart RC, Dollar ML. Continuous thermodilution cardiac output measurement in sheep. Journal of Thoracic and Cardiovascular Surgery. 1992;104(2):315-320.
Yelderman, M. ; Quinn, M. D. ; McKown, R. C. ; Eberhart, R. C. ; Dollar, M. L. / Continuous thermodilution cardiac output measurement in sheep. In: Journal of Thoracic and Cardiovascular Surgery. 1992 ; Vol. 104, No. 2. pp. 315-320.
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