Increased maternal TSH and decreased maternal FT4 are associated with a higher operative delivery rate in low-risk pregnancies: A prospective cohort study

摘要: The increasing number of operative deliveries is a topic major concern in modern obstetrics. Maternal thyroid function known influence on many obstetric parameters. Our objective was to investigate possible relation between maternal function, and deliveries. Secondary aim explore whether related specific reasons for In this prospective cohort study, low-risk Caucasian women, pregnant single cephalic fetus were included. Women with auto-immune disease, pre-labour Caesarean section, induction labour, breech presentation or preterm delivery excluded. all trimesters pregnancy the assessed. Differences mean TSH FT4 assessed using t-test. Mean levels determined by one way ANOVA. Repeated measurement analyses performed (ANOVA), adjusting BMI, partiy, age gestational at delivery. total 872 women included, which 699 (80.2 %) had spontaneous At 36 weeks gestation who an significantly higher (1.63mIU/L versus 1.46mIU/L, p = 0.025) lower (12.9pmol/L 13.3pmol/L, p = 0.007)) compared (p = 0.026) (p = 0.030) throughout due failure progress second stage other reasons. Increased decreased seem be associated more vaginal sections. After several confounders association remained possibly explained less efficient uterine action.