长速率与剂量呈负相关 而预测最终身高与缓释亮丙瑞林治疗期间身高标准差评分(SDS)/骨龄比率正相关〔2〕 。Ohyama等对21例ICPP及14例器质性疾病性早熟治疗用缓释亮丙瑞林3~5年,身高SDS增 长在骨龄超过12岁后明显下降,故认为骨龄12岁是停用指标〔3〕,而不是治疗时间 越长越好。可见,ICPP的治疗宜及早、在骨龄尚小时为佳。本组病例仅仅治疗24周,对最终 身高的影响还不能作出结论性判断、尤其是2例的骨龄治疗前已达12岁,最终身高应长期追 踪。此外,Galluzzi等观察,身高的改善上女孩不如男孩明显〔4〕。 B型超声检查子宫和卵巢体积及卵泡大小对ICPP的诊断及治疗观察也是可用指标,本组4例子 宫有缩小而卵巢体积测定有缩小也有增大,可能是不同操作者测量误差所致。有报告ICPP在 诊断时50%子宫及卵巢增大、伴有>5~7 mm直径的卵泡,在曲普瑞林治疗后3个月增大的 子宫和卵巢体积可恢复到与年龄相当的值,而且持续治疗不引起多囊卵巢的发生〔6〕 。
由于GnRH-A长效制剂对ICPP的疗效确切,有的医生对无压迫症状的鞍区错构瘤引起的中枢 性性早熟也主张首先试用GnRH-A治疗。
与其他GnRH-A长效制剂比较,缓释亮丙瑞林的优点是使用方便,室温保存即可,不易凝结 只需细针皮下注射,使患儿乐于接受。
参 考 文 献
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