2019 Volume 39 Issue 1 Pages 32-37
We report the case of pregnant patient with Basedow’s disease who had poor control of hyperthyroidism despite drug treatment. Total thyroidectomy was performed mid-pregnancy using fetal heart rate monitoring. Due to the placental transfer of anesthetic, the fetal heart rate decreased and fetal heart rate baseline variability disappeared. In the acute phase of total thyroidectomy, transient maternal hyperthyroidism did not change fetal heart rate. There was no obvious effect on fetal heart rate or uterine contraction associated with the postoperative use of landiolol. In cases such as this, various factors such as surgical invasion, general anesthesia, thyroid hormone, and beta blockers may threaten the safety of the fetus. Based on the present case, fetal heart rate monitoring was simple and useful for evaluating fetal condition and uterine contraction.
