重新定义间接缺水测试的诊断截止值
Yash Akkara1, Kavita Narula1,2, Katharine Lazarus1,2
1Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism Digestion and Reproduction, Imperial College London, London, UK.
Clinical endocrinology
|December 6, 2024
概括
血清的切断值≥148 mmol/L与尿液度准确诊断出阿尔金氨酸压素缺乏 (AVP-D),阿尔金氨酸压素耐药性 (AVP-R) 和初级多性 (PP). 这种方法比血清度更可靠,用于调查多性多尿症综合征 (PPS).
科学领域:
- 内分泌学 在内分泌学.
- 腎臟病學 (nephrology) 是一種醫學專業.
- 临床诊断 临床诊断 临床诊断
背景情况:
- 错误诊断的阿尔金因压素缺乏症 (AVP-D) 和耐药性 (AVP-R) 可以导致危险的desmopressin在健康个体使用.
- 缺水测试对于诊断多滴水多尿症综合征 (PPS) 至关重要.
- 目前用于诊断测试的参考范围可能需要重新评估以提高准确性.
研究的目的:
- 为了评估在缺水测试中使用的当前参考范围的诊断有效性.
- 确定血清和尿液度的最佳切断值,以区分AVP-D,AVP-R和初级多症 (PP).
主要方法:
- 对135名接受缺水测试的患者的回顾性分析 (2014年8月至2023年8月).
- 对患者诊断的审查以及血清度,血清度和尿液度的可变性和ROC曲线的确定.
- 对德斯莫普林后尿液度的分析和在模两可的情况下的临床监测.
主要成果:
- 与血清度 (1.16%) 相比,血清度的变化 (0.72%) 显著较低.
- 血清的切断值≥148 mmol/L证明了100%的特异性,排除了PP.
- 血清 (≥148 mmol/L) 和尿液度切线的联合使用 (PP的≥630 mOsm/kg,AVP-D/AVP-R的<383 mOsm/kg) 实现了高诊断准确度,模两可的病例得到了100%的灵敏度和特异性.
结论:
- 血清的切断值≥148 mmol/L,结合尿液度,为区分AVP-D,AVP-R和PP提供了卓越的诊断准确性.
- 在PPS研究中,血清是比血清度更可靠的标记物,因为其生物和分析可变性较低.
- 优化诊断标准可以防止错误诊断和不适当的治疗PPS患者.
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