Study on effect of delivery way on thyrotropin levels in pregnant women and their newborns / 中华妇产科杂志

ABSTRACT

Objective To investigate the effect on thyrotropin (TSH) levels of pregnant women and their newborns in different delivery ways. Methods The serum TSH levels of 213 pregnant women and the umbilical cord blood TSH levels of their newborns (140 cases from normal vaginal delivery, 38 cases from cesarean section, 35 cases from low forceps delivery) were tested by immunoradiometric assay. Urinary iodine was detected from pregnant women before delivery. Results In pregnant women, the mean serum level of TSH in the forceps group [(4 13?0 69) mU/L] was significantly higher than those of the normal birth group [(2 58?0 87) mU/L, P