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亚临床甲状腺功能减退(SCH)是血清促甲状腺激素(TSH)水平高于正常上限而游离甲状腺素水平尚在正常范围。育龄期妇女SCH的发生率为0.5%~5%,主要引起月经紊乱、不孕和流产及妊娠并发症,并可影响不孕妇女的辅助生殖技术治疗过程,与辅助生殖妊娠结局息息相关。对于不孕妇女求助辅助生殖技术治疗时,均应检查甲状腺功能,以发现临床特征不明显的SCH,及时治疗,尽量减少其对辅助生殖治疗妊娠结局的影响。
Subclinical hypothyroidism (SCH) is a serum thyroid-stimulating hormone (TSH) level above the upper limit of normal while free thyroxine is still in the normal range. SCH incidence in women of childbearing age 0.5% to 5%, mainly caused by menstrual disorders, infertility and miscarriage and pregnancy complications, and infertility women can affect the process of assisted reproductive technology and assisted reproductive pregnancy outcomes are closely related. For infertile women seeking assisted reproductive technology treatment, thyroid function should be checked to find clinical features of SCH is not obvious, timely treatment, minimize its impact on assisted reproductive pregnancy outcomes.