JCEM:中国孕妇妊娠早期TSH参考值较高

2013-12-06 MedSci 医学界

中国医科大学附属第一医院滕卫平教授率领的研究团队发现,中国孕妇的血清促甲状腺激素(TSH)在4-6周时显著高于7-12周时,提示在妊娠早期可能需要两种甲状腺功能参考值。 研究人员测定了中国辽宁省三个城市4,800位妊娠早期孕妇,以及2,000位拟妊娠妇女的血清TSH.他们还在随访期间评估了535位妊娠中期和妊娠晚期的孕妇。 结果显示,妊娠4-6周的中位TSH(2

中国医科大学附属第一医院滕卫平教授率领的研究团队发现,中国孕妇的血清促甲状腺激素(TSH)在4-6周时显著高于7-12周时,提示在妊娠早期可能需要两种甲状腺功能参考值。

研究人员测定了中国辽宁省三个城市4,800位妊娠早期孕妇,以及2,000位拟妊娠妇女的血清TSH.他们还在随访期间评估了535位妊娠中期和妊娠晚期的孕妇。

结果显示,妊娠4-6周的中位TSH(2.15 mIU/L;95% CI,0.56-5.31)高于7-12周时(1.47 mIU/L;95% CI,0.1-4.34),第七周后显著下降。但是,研究人员发现,与非妊娠妇女(2.07 mIU/L;95% CI,0.69-5.64)相比,TSH无显著差异。

在4,800位孕妇中,使用TSH > 2.5 mIU/L的诊断标准时,亚临床甲状腺功能减退的患病率为27.8%,而使用研究者实验室获得的参考区间(0.14 mIU/L至4.87 mIU/L)时为4%.研究结果显示,在妊娠早期血清TSH > 2.5 mIU/L的118位孕妇中,到妊娠第20和30周分别只有30%和20.3%达到TSH > 3 mIU/L.数据显示,游离T4在妊娠早期无显著变化。

“这一观察让我们首次证明,在妊娠早期对甲状腺功能的评估应建立两种参考值范围:即妊娠4-6周和7-12 周各有不同的参考值范围。”研究者指出,“对于妊娠怀孕妇女,应选择与其妊娠周数对应的参考值范围。非妊娠妇女的参考值范围可用于评估妊娠4-6周孕妇的评估。”

原始出处:

Li C, Shan Z, Mao J, Wang W, Xie X, Zhou W, Li C, Xu B, Bi L, Meng T, Du J, Zhang S, Gao Z, Zhang X, Yang L, Fan C, Teng W.Assessment of Thyroid Function During First-Trimester Pregnancy: What Is the Rational Upper Limit of Serum TSH During the First Trimester in Chinese Pregnant Women?J Clin Endocrinol Metab. 2013 Nov 25.

相关文献:

Moon JH, Park YJ, Kim TH, Han JW, Choi SH, Lim S, Park DJ, Kim KW, Jang HC.Lower-but-normal serum TSH level is associated with the development or progression of cognitive impairment including mild cognitive impairment and dementia in elderly: A result from Korean Longitudinal Study on Health and Aging (KLoSHA).J Clin Endocrinol Metab. 2013 Nov 27.

Iglesias P, Ridruejo E, Muñoz A, Prado F, Macías MC, Guerrero MT, Tajada P, García-Arévalo C, Díez JJ.Thyroid function tests and mortality in aged hospitalized patients: a 7-year prospective observational study.J Clin Endocrinol Metab. 2013 Dec;98(12):4683-90.

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    2014-07-16 achengzhao
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    2014-08-15 smallant2015
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    2013-12-08 xinxin088
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