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目的 研究亚甲状腺功能减退(亚甲减)病人左室收缩和舒张功能的改变,以及左旋甲状腺素(ＬＴ4)替代治疗对其心功能的影响。对象和方法 利用心脏多普勒超声测定26例亚临床甲减病人左室收缩功能和舒张功能。亚临床甲减的诊断依据为基础促甲状腺素(ＴＳＨ)值高于正常,游离Ｔ3(ＦＴ
Objective To investigate the changes of left ventricular systolic and diastolic function in patients with hypothyroidism (hypothyroidism) and the effects of levothyroxine (LT4) replacement therapy on their cardiac function. Subjects and Methods The left ventricular systolic function and diastolic function in 26 patients with subclinical hypothyroidism were measured by Doppler echocardiography. Subclinical hypothyroidism is based on the diagnosis of thyroid-stimulating hormone (TSH) values higher than normal, free T3 (FT