Endocrine Abstracts

Background: Urinary metanephrine (MN) and normetanephrine (NMN) are used to detect recurrence of pheochromocytoma during post-operative period. Currently, reference ranges of urinary MN and NMN obtained from healthy individuals are applied to subjects with adrenalectomy. However, studies regarding the property of using reference ranges from healthy subjects in pheochromocytoma subjects with adrenalectomy are limited.Aim: To compare urinary MN and NMN con...

Background/aims: Maternal subclinical hypothyroidism has been reported to be associated with risks of adverse pregnancy outcomes such as fetal loss and possible fetal neurodevelopmental deficit. However, current guidelines seem to overestimate subclinical hypothyroidism in pregnant women in some regions. Therefore, we aim to evaluate trimester-specific reference range of serum TSH for pregnant women in Korea and whether maternal subclinical hypothyroidism affects perinatal out...