British Journal of Anaesthesia, Vol 84, Issue 1 16-22, Copyright © 2000 by Oxford University Press
A Schweizer, L Hohn, DR Morel, A Kalangos and M Licker
Patients undergoing cardiac surgery with moderate hypothermic
cardiopulmonary bypass (CPB) were allocated randomly to receive either
saline (control group, n = 29) or a high-dose regimen of aprotinin
(aprotinin group, n = 28). In both groups, CPB was associated with similar
and transient increases in effective renal plasma flow (+54% in controls
and +48% in aprotinin-treated patients) and in fractional excretion of
sodium and potassium, but glomerular filtration rate remained unchanged.
Plasma and urinary ratios of 6-keto-PGF1 alpha to thromboxane B2 (TxB2)
increased significantly, indicating systemic and renal release of
vasodilatory prostaglandins. Osmolar clearance correlated with urinary
excretion of cyclic GMP (r = 0.79 and 0.86 in the control and aprotinin
groups, respectively) and 6-keto-PGF1 alpha (r = 0.63 and 0.69 in the
control and aprotinin groups, respectively). Compared with preoperative
values, plasma atrial natriuretic peptide increased after weaning from CPB
(+71% and +93% in the control and aprotinin groups, respectively).
Aprotinin had no apparent adverse effect on renal function and it did not
alter mechanisms involving prostanoids and atrial natriuretic peptide
during cardiac surgery.
ARTICLES
Aprotinin does not impair renal haemodynamics and function after cardiac surgery
Division of Anaesthesiology, Hopital Cantonal Universitaire, Geneve, Switzerland.
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