[Effect of the prone position on ICG excretion during normotensive or hypotensive isoflurane anesthesia]

We evaluated the effect of prone position on ICG excretion during normotensive and hypotensive isoflurane anesthesia. In supine position, either normotensive or hypotensive anesthesia produced no significant prolongation in ICG excretion. In prone position, however, both normotensive and hypotensive anesthesia caused a significant prolongation in the excretion. The results suggest that prone position decreases the hepatic blood flow or hepatic function during isoflurane anesthesia.