八、预后
甲减患儿的预后因其发病的原因不同而有差异。通常大部分甲减患儿在补充甲状腺激素后，甲减症状消失，机体代谢恢复正常，预后良好。其中，一过性甲减患儿有可能在临床症状缓解后停药，甲减的症状和体征不再复发。但是，大部分甲减患儿需要终身服用甲状腺激素制剂，以维持甲状腺功能在正常水平。
表33-2 婴儿、儿童和青少年左甲状腺素（L-T4）治疗的推荐剂量[13]
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