British Journal of Anaesthesia, Vol 82, Issue 4 496-502, Copyright © 1999 by The Board of Management and Trustees of the British Journal of Anaesthesia
C. Svensen, D. Drobin, J. Olsson and R. G. Hahn
To investigate if fluid therapy changes the prerequisites for the
development of oedema, four i.v. infusions of Ringer's solution 25 ml kg-1
were given over 15 or 30 min in a randomized crossover study to 10 healthy
male volunteers, aged 28-40 (mean 31) yr. Blood haemoglobin concentration,
measured every 5 min for 90 min, and urinary excretion were used as input
data for volume kinetic analysis. The results showed that the elimination
rate constant (kr) was higher when another infusion had been given earlier
on the same day (208 vs 140 ml min-1; P < 0.002) and the size of V1 was
larger during the 15-min infusions (4.7 vs 3.2 litre; P < 0.02).
However, the size of V2 and the rate constant for the exchange of fluid
between V1 and V2 were similar during all infusions. We conclude that a
fluid challenge makes elimination of further infused fluid more effective
but does not change compliance with volume expansion in healthy volunteers.
CLINICAL INVESTIGATIONS
Stability of the interstitial matrix after crystalloid fluid loading studied by volume kinetic analysis
Department of Anaesthesia, Soder Hospital, Stockholm, Sweden; Department of Anaesthesia, Sundsvall Hospital, Sundsvall, Sweden
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