PMID: 9187991Jun 1, 1997Paper

Thermodilution cardiac output measurement during simultaneous volume infusion through the venous infusion port of the pulmonary artery catheter

Journal of Cardiothoracic and Vascular Anesthesia
K GriffinT J Iberti

Abstract

To determine the effect on thermodilution cardiac output (TDCO) measurements of continuous volume infusion through the right atrial venous infusion port of the pulmonary artery catheter. Prospective, blinded, randomly allocated crossover. Surgical intensive care unit in a university hospital. Forty-nine hemodynamically stable patients between the ages of 43 and 84 in the intensive care unit and with a pulmonary artery catheter in place. Each patient received two room-temperature infusions (250 or 500 mL/hr) of 5% dextrose. Consecutive TDCO measurements were taken during each infusion and during a control period (no infusion). The sequence of infusion rates and control period was randomly determined. At both infusion rates, most patients exhibited a decrease in TDCO measurement of between 0.1 and 3.0 L/min. Although some patients exhibited an increase in measured TDCO, this increase was primarily between 0.1 and 0.5 L/min. The mean TDCO measurements at infusion rates of 0, 250, and 500 mL/hr were 6.77, 6.49, and 6.47 L/min, respectively. Measured TDCO decreased on volume infusion by 0.3 +/- 0.13 L/min (mean +/- SD, p < 0.02). Rapid continuous infusion of fluid through the venous infusion port of the pulmonary artery catheter sig...Continue Reading

Citations

Oct 3, 2006·Current Opinion in Anaesthesiology·B P Cholley
Nov 5, 1999·Critical Care Medicine·D A MacGregor, R L Royster
Dec 2, 2000·International Anesthesiology Clinics·D M Rothenberg, K J Tuman
Apr 7, 2007·Critical Care Medicine·Keith KilluErnest Benjamin
Mar 2, 2021·Journal of Clinical Monitoring and Computing·I T BootsmaF de Lange

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