老年亚临床甲状腺功能异常的诊治

Diagnosis and treatment of subclinical thyroid function abnormalities in the elderly

亚临床甲状腺功能异常的定义为血清促甲状腺激素(thyroid stimulating hormone,TSH)高于或低于正常范围而游离甲状腺素(free thyroxine,FT_(4))在正常范围内的甲状腺功能情况,分为亚临床甲状腺功能亢进(subclinical hyperthyroidism,SHyper)和亚临床甲状腺功能减退(subclinical hypothyroidism,SHypo)。老龄化与甲状腺功能异常的发病率增加有关,一项针对我国10个城市甲状腺疾病患病率的调查显示。