[Evaluation of the renal function during hypotensive anesthesia induced by nitroglycerin, prostaglandin E1 or nitroglycerin+prostaglandin E1].

We investigated the renal function perioperatively in 32 female patients who underwent mastectomy with hypotensive general anesthesia induced by nitroglycerin (NG), prostaglandin E1 (PGE1) and NG+PGE1. Urine output in PGE1 group (11 patients) was significantly larger than that in NG group (9 patients). It could be attributed to the increase of glomerular filtration rate. On the other hand, the value of beta 2-microglobulin in urine in NG group and the value of N-acetyl-beta-D-glucosaminidase in urine in NG+PGE1 group (12 patient) were abnormal in some patients. These changes were not significant, but the disturbance of renal tubule could be possible. In summary, PGE1 was effective in the maintenance of the renal function.