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J Appl Physiol 70: 287-292, 1991;
8750-7587/91 $5.00
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Journal of Applied Physiology, Vol 70, Issue 1 287-292, Copyright © 1991 by American Physiological Society

ARTICLES

Hormonal interactions and renal function during mechanical ventilation and ANF infusion in humans

P. Andrivet, S. Adnot, S. Sanker, P. E. Chabrier, I. Macquin-Mavier, P. Braquet and C. Brun-Buisson
Departement de Reanimation Medicale, Hopital Henri Mondor, Paris, France.

To investigate the influence of atrial natriuretic factor (ANF) on renal function during mechanical ventilation (MV), we examined the renal and hormonal responses to synthetic human ANF infusion in eight patients during MV with zero (ZEEP) or 10 cmH2O positive end-expiratory pressure (PEEP). Compared with ZEEP, MV with PEEP was associated with a reduction in diuresis (V) from 208 +/- 51 to 68 +/- 11 ml/h (P less than 0.02), in natriuresis (UNa) from 12.4 +/- 3.3 to 6.2 +/- 2.1 mmol/h (P less than 0.02), and in fractional excretion of sodium (FENa) from 1.07 +/- 0.02), 0.21 to 0.67 +/- 0.17% (P less than 0.02) and with an increase in plasma renin activity (PRA) from 4.83 +/- 1.53 to 7.85 +/- 3.02 ng.ml-1.h-1 (P less than 0.05). Plasma ANF levels markedly decreased during PEEP in four patients but showed only minor changes in the other four patients, and mean plasma ANF levels did not change (163 +/- 33 pg/ml during ZEEP and 126 +/- 30 pg/ml during PEEP). Glomerular filtration rate and renal plasma flow were unchanged. Infusion of ANF (5 ng.kg-1.min-1) during PEEP markedly increased V and UNa by 110 +/- 61 and 107 +/- 26%, respectively, whereas PRA decreased from 7.85 +/- 3.02 to 4.40 +/- 1.5 ng.ml-1.min-1 (P less than 0.05). In response to a 10 ng.kg-1.min-1 ANF infusion, V increased to 338 +/- 79 ml/h during ZEEP but only to 134 +/- 45 ml/h during PEEP (P less than 0.02), whereas UNa increased, respectively, to 23.8 +/- 5.3 and 11.3 +/- 3.3 mmol/h (P less than 0.02).(ABSTRACT TRUNCATED AT 250 WORDS)


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J. L. Koyner and P. T. Murray
Mechanical Ventilation and Lung-Kidney Interactions
Clin. J. Am. Soc. Nephrol., March 1, 2008; 3(2): 562 - 570.
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