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巨泌乳素筛查的临床应用研究

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摘要 目的:探讨在高泌乳素血清样本中聚乙二醇沉淀法的临床应用。方法:检测727例泌乳素水平高于参考范围上限的血清经聚乙二醇沉淀前后的泌乳素水平;根据回收率及聚乙二醇沉淀后的结果区分巨泌乳素及单体泌乳素,分析泌乳素升高样本中巨泌乳素检出率,并比较不同泌乳素升高水平的巨泌乳素检出率及不同回收率的分布情况,同时检测80例健康非妊娠女性聚乙二醇处理前和处理后血清泌乳素并分析差异。结果:在泌乳素升高样本中,巨泌乳素的检出率为16.4%(119/727),其余83.6%(696/727)为真性高泌乳素血症。在2倍截断值以上的高泌乳素血症中巨泌乳素检出率明显高于2倍截断值以下的。回收率在40%~60%的样本占比约为19.6%,聚乙二醇处理前后健康非妊娠女性的泌乳素结果分布有显著性差异。结论:血清泌乳素升高患者中有一定比例的巨泌乳素干扰导致的假性增高,用聚乙二醇沉淀法简便筛查巨泌乳素,及时纠正泌乳素结果,有利于降低临床医生对高泌乳素血症的误诊。约20%的样本回收率在40~60%之间,建立聚乙二醇处理后的泌乳素参考区间可能比计算回收率更有价值。
作者 孙祥
出处 《医学检验与临床》 2022年第11期60-62,50,共4页 Medical Laboratory Science and Clinics
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