British Journal of Anaesthesia, 2001, Vol. 86, No. 2 267-269
© 2001 The Board of Management and Trustees of the British Journal of Anaesthesia
Brief Communication |
Renal effects of inhaled nitric oxide in humans
Nuffield Department of Anaesthesia, The Radcliffe Infirmary, Woodstock Road, Oxford OX2 6HE, UK*Corresponding author
Abstract
We measured renal sodium and water excretion in five healthy male volunteers who inhaled nitric oxide. Urine volumes, urinary sodium and creatinine, and plasma sodium and creatinine were measured before, during and after a 2-h period inhaling nitric oxide (40 vpm in air). A control experiment, excluding the nitric oxide, was done on a separate day. Nitric oxide increased urinary volume (mean increase 85%, SEM 22%) and prevented a decrease in fractional excretion of sodium (32% SEM 8%) seen in the control experiments, without a detectable change in creatinine clearance. The results suggest the inhaled nitric oxide may alter tubular salt and water resorbtion in humans. The mechanism for this remains unclear.
Br J Anaesth 2001; 86: 2679
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