EFFECT OF POSITIVE AND NEGATIVE EXPIRATORY PRESSURE ON RENAL FUNCTION

Abstract
The effects of positive and negative and expiratory pressure on renal function have been studied in adult greyhounds with a normal blood volume and without evidence of cardiorespiratory disease. Positive expiratory pressure (+10 cm H2O) resulted in a decrease of urine volume, glomerular filtration rate and renal blood flow which returned towards normal following removal of the positive pressure. Negative expiratory pressure ( − 6 cm H2O) resulted in opposite changes in renal function.