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通过测定甲状腺吸 13 1I率鉴别诊断甲亢 13 1I治疗后早发甲低的类型。 63例甲亢 131I治疗后早发甲低的患者 (一过性甲低组 33例 ,永久性甲低组 30例 ) ,在甲状腺素替代治疗前、后 6个月测定甲状腺 3h吸 131I率和血清 TT3、TT4 、TSH浓度。结果表明 :治疗前一过性与永久性甲低组间吸 13 1I率有明显差异 ,TT3、TT4 、TSH浓度无明显差异 ;与对照组相比 ,一过性甲低组治疗前吸 131I率无差异 ,TT3、TT4 和 TSH浓度有明显差异 ,治疗后均无差异 ;永久性甲低组吸 131I率治疗前、后均明显降低。因此早发甲低的患者 ,仅靠 TT3、TT4 、TSH水平难以鉴别甲低类型 ;但根据吸 131I率可准确判断 ,即甲状腺 3h吸 131I率正常 ,可以判断为一过性甲低 ,反之则为永久性甲低。
Through the determination of thyroid suction 13II rate differential diagnosis of hyperthyroidism 13II after treatment of early hypothyroidism type. 63 cases of hyperthyroidism 131I treatment of early hypothyroidism (transient hypothyroidism in 33 cases, permanent hypothyroidism in 30 cases), in the thyroid hormone replacement therapy before and 6 months after the determination of thyroid 3h suction 131I rate and serum TT3, TT4, TSH concentration. The results showed that there was a significant difference in the rate of 13 1I inhalation between pre-treatment and permanent hypothyroidism, but there was no significant difference in the concentrations of TT3, TT4 and TSH. Compared with the control group, 131I No difference, TT3, TT4 and TSH concentrations were significantly different after treatment were no differences; permanent hypothyroidism suction 131I rate were significantly lower before and after treatment. Therefore, patients with early hypothyroidism, only by TT3, TT4, TSH level is difficult to identify a hypothyroid type; but according to 131I rate can be accurately judged that the thyroid 3h suction 131I rate of normal, can be judged as transient hypothyroidism, and vice versa A permanent low.