title: Catecholamine levels and their correlation to blood gases in umbilical venous blood obtained by cordocentesis.
abstract: The plasma catecholamine concentration was evaluated in umbilical venous blood obtained by cordocentesis performed in 77 fetuses for indications including: nonimmune hydrops; Rh incompatibility; intrauterine growth retardation; polyhydramnios; anomalies; immunological disorders, and possible viral infection. The pH as well as pO2 of the umbilical venous blood showed a notably significant negative correlation with the norepinephrine concentration (r = -0.5607, r = 0.4467); while pCO2 was also significantly correlated with the norepinephrine concentration (r = 0.4955). When the pCO2/pO2 ratio was tentatively put up for comparison, the ratio was undoubtedly better correlated (r = 0.60442) with the fetal norepinephrine concentration than any other biochemical variable. Moreover, the ratio over 2.0 suggests that fetal catecholamine values have reached abnormal levels.
authors: Department of Obstetrics and Gynecology, Tohoku University School of Medicine, Sendai, Japan.
authors: K
authors: K
authors: Okamura
authors: T
authors: T
authors: Watanabe
authors: S
authors: S
authors: Tanigawara
authors: H
authors: H
authors: Endo
authors: M
authors: M
authors: Iwamoto
authors: J
authors: J
authors: Murotsuki
authors: A
authors: A
authors: Yajima
mesh_terms: D002245:Carbon Dioxide / Q000097:blood*; D004837:Epinephrine / Q000097:blood*; D005260:Female; D005312:Fetal Blood / Q000737:chemistry*; D005315:Fetal Diseases / Q000097:blood* / Q000175:diagnosis; D006801:Humans; D006863:Hydrogen-Ion Concentration; D009638:Norepinephrine / Q000097:blood*; D010100:Oxygen / Q000097:blood*; D011247:Pregnancy; D014471:Umbilical Veins
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen; D009638:Norepinephrine; D004837:Epinephrine