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  • Title: [Evaluation of the thermal technic for the quantitative measurement of extravascular lung water].
    Author: Zadrobilek E, Schindler I, Jantsch H, Gilly H, Mauritz W, Draxler V, Sporn P, Steinbereithner K.
    Journal: Anaesthesist; 1985 Nov; 34(11):582-7. PubMed ID: 4091246.
    Abstract:
    To evaluate the accuracy of the method, sequential measurements (n = 159) of extravascular lung water (EVLW) using the thermo-dye double-indicator dilution technique were performed in 22 critically surgical ill patients. Radiographic grading of lung water content served as clinical standard. Normal mean EVLW defined radiographically without evidence of pulmonary edema was 4.8 +/- 1.1 ml/kg. Early interstitial fluid accumulation was quite accurately detected with 6.9 +/- 2.1 ml/kg EVLW (p less than 0.001 vs normal lung water content). The mean EVLW present with definitive interstitial and alveolar edema was 11.5 +/- 3.8 ml/kg and 19.1 +/- 4.5 ml/kg, respectively. Despite some objections to the method (diffusion limitation of the thermal indicator, uneven regional lung perfusion), this technique for measuring EVLW reliably assesses the degree of pulmonary edema. Even when properly performed, chest roentgenograms only confirm gross changes in the lung water content.
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