title: [Transplacental transfer and clinical application of aztreonam].
abstract: Preclinical and clinical studies on aztreonam (AZT) in the perinatal period were carried out and the results are summarized below. 1. Concentrations of AZT in maternal serum, umbilical cord serum and amniotic fluid were measured after intravenous injection of AZT 1 g and 2 g, and intravenous drip infusion of AZT 1 g. As results, the transfer of AZT into umbilical cord serum started to increase in 1 to 2 hours, and the transfer of AZT into amniotic fluid started to increase after an elapse of 2 hours. Upon the intravenous injection of 2 g, AZT concentration in amniotic fluid was as high as 27.1 micrograms/ml even at 10 hours 30 minutes after the injection, and it was still 6.9 micrograms/ml at 20 hours or more after the injection. 2. AZT 2 g/day (b.i.d.) was administered by intravenous drip infusion to 1 perinatal infection case with pyelonephritis. It was clinically effective and neither side effect nor abnormal laboratory test value was observed.
authors.affiliation: Department of Obstetrics and Gynecology, Juntendo University School of Medicine.
authors.forename: S
authors.initials: S
authors.lastname: Matsuda
authors.forename: K
authors.initials: K
authors.lastname: Oh
authors.forename: H
authors.initials: H
authors.lastname: Hirayama
mesh_terms: D000328:Adult; D000653:Amniotic Fluid / Q000378:metabolism; D001398:Aztreonam / Q000008:administration & dosage / Q000493:pharmacokinetics* / Q000627:therapeutic use; D001424:Bacterial Infections / Q000188:drug therapy*; D005260:Female; D005312:Fetal Blood / Q000378:metabolism; D006801:Humans; D007262:Infusions, Intravenous; D007275:Injections, Intravenous; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000188:drug therapy*
chemical_list: D001398:Aztreonam