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Circumstances influencing umbilical‐cord plasma catecholamines at delivery
Author(s) -
FALCONER A. D.,
LAKE D. M.
Publication year - 1982
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1982.tb04633.x
Subject(s) - umbilical cord , catecholamine , caesarean section , arterial blood , venous blood , medicine , norepinephrine , vaginal delivery , anesthesia , endocrinology , pregnancy , biology , anatomy , dopamine , genetics
Summary. Blood gases and plasma catecholamines were measured in umbilical arterial and venous blood samples after delivery. In all cases umbilical arterial noradrenaline concentrations were higher than venous levels. The lowest concentrations of noradrenaline were found after elective cacsarean section. Vaginal delivery, particularly when accompanied by instrumental manipulation, was associated with significantly higher concentrations of arterial noradrenaline. High concentrations of catecholamines were commonly recorded in those deliveries showing evidence of acid‐base disturbance. Noradrenaline was the predominant catecholamine in all cases. A linear relation was demonstrated between arterial noradrenaline and arteriovenous noradrenaline difference.