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Harris TR, Bernard GR, Brigham KL, et al. Lung microvascular transport properties measured by multiple indicator dilution methods in patients with adult respiratory distress syndrome. A comparison between patients reversing respiratory failure and those failing to reverse. Am Rev Respir Dis. 1990;141(2):272-80doi: 10.1164/ajrccm/141.2.272.
Harris, T. R., Bernard, G. R., Brigham, K. L., Higgins, S. B., Rinaldo, J. E., Borovetz, H. S., Sibbald, W. J., Kariman, K., & Sprung, C. L. (1990). Lung microvascular transport properties measured by multiple indicator dilution methods in patients with adult respiratory distress syndrome. A comparison between patients reversing respiratory failure and those failing to reverse. The American review of respiratory disease, 141(2), 272-80. https://doi.org/10.1164/ajrccm/141.2.272
Harris, T R, et al. "Lung microvascular transport properties measured by multiple indicator dilution methods in patients with adult respiratory distress syndrome. A comparison between patients reversing respiratory failure and those failing to reverse." The American review of respiratory disease vol. 141,2 (1990): 272-80. doi: https://doi.org/10.1164/ajrccm/141.2.272
Harris TR, Bernard GR, Brigham KL, Higgins SB, Rinaldo JE, Borovetz HS, Sibbald WJ, Kariman K, Sprung CL. Lung microvascular transport properties measured by multiple indicator dilution methods in patients with adult respiratory distress syndrome. A comparison between patients reversing respiratory failure and those failing to reverse. Am Rev Respir Dis. 1990 Feb;141(2):272-80. doi: 10.1164/ajrccm/141.2.272. PMID: 2405756.
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Am Rev Respir Dis. 1990 Feb;141(2):272-80. doi: 10.1164/ajrccm/141.2.272.

Lung microvascular transport properties measured by multiple indicator dilution methods in patients with adult respiratory distress syndrome. A comparison between patients reversing respiratory failure and those failing to reverse.

The American review of respiratory disease

T R Harris, G R Bernard, K L Brigham, S B Higgins, J E Rinaldo, H S Borovetz, W J Sibbald, K Kariman, C L Sprung

Affiliations

  1. Center for Lung Research, Vanderbilt University, Nashville, TN 37232-2155.

PMID: 2405756 DOI: 10.1164/ajrccm/141.2.272

Abstract

We conducted indicator dilution studies on the lungs of patients in the early phases of adult respiratory distress syndrome (ARDS) to test the hypothesis that capillary permeability was increased in patients with respiratory failure. Indicator dilution studies were performed using 51Cr-erythrocytes, 125I-albumin, 14C-urea, and 3H-water as tracers. The injectate was infused as a bolus into a central venous line. Peripheral arterial blood was collected and counted for radioactivity. Mathematical analysis of the indicator curves yielded cardiac output, measures of the product of capillary permeability and surface area for urea (PS and D1/2S), the intravascular lung volume (Vv), and the extravascular lung water volume (Ve). Permeability was separated from surface area by normalizing PS and D1/2S to Vv. Patients could be divided into 16 in whom blood gas determinations and radiologic criteria for ARDS were reversed and 23 in whom they were not. We examined indicator dilution and other measures of lung function in the two groups to determine whether significant differences in microvascular function existed. PS and PS/Vv were significantly higher in the nonreversal patients. Ve was above normal, but not different between groups. Linear regression analysis showed significant correlations for all of the following in the nonreversal group: Ve and all measures of permeability, pulmonary vascular resistance (PVR), and the inverse of permeability-surface area measures and AaDO2 and PVR. Only measures of Ve and PS correlated in the reversal group. These results support the hypothesis that capillary permeability is increased in patients with early ARDS and continuing respiratory failure.(ABSTRACT TRUNCATED AT 250 WORDS)

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