长期口服葡萄糖耐受性测试 (OGTT) 期间早期葡萄糖和胰岛素动态区分反应性低血糖症与伪低血糖症
Alberto Vassallo1, Matteo Acanfora1, Fanny Valsecchi1
1Endocrinology Unit, Vita-Salute San Raffaele University, Via Olgettina, 60, Milan, 20132 Italy.
Journal of diabetes and metabolic disorders
|November 7, 2025
概括
反应性低血糖 (RH) 和伪低血糖 (PH) 可以使用口服葡萄糖耐受性测试 (OGTT) 动态参数来区分. 像 ΔGLU0-1 和松田指数这样的特定标志物可以提高RH与PH的诊断准确性.
科学领域:
- 内分泌学 在内分泌学.
- 代谢障碍 代谢障碍 代谢障碍
- 诊断测试 诊断测试 诊断测试
背景情况:
- 反应性低血糖症 (RH) 是通过Whipple三位一体的碳水化合物摄入后定义的.
- 伪低血糖症 (PH) 呈现类似的症状,但没有真正的低血糖症.
- 准确的区分至关重要,以防止误诊和不必要的调查.
研究的目的:
- 在疑似RH和PH的患者之间比较动态口服葡萄糖耐受性测试 (OGTT) 参数.
- 确定有效区分RH和PH的标记物.
- 提高OGTT的诊断准确度,以区分这些疾病.
主要方法:
- 对74名因怀疑RH而接受长期OGTT的患者的分析.
- RH定义为血葡萄糖<55毫克/分升在180-300分钟之间.
- 在整个测试中,PH定义为低血糖症状,葡萄糖≥55 mg/dL.
主要成果:
- 在26%的患者中确认了RH,在20%的患者中确认了PH.
- 与PH相比,RH患者的1小时葡萄糖水平 (146比123毫克/分升) 较高,马苏达指数 (5.7比18.6) 较低.
- ΔGLU0-1 (从0到1小时的葡萄糖变化) 是RH最强的预测因素 (OR1.69,p=0.041).
结论:
- 动态OGTT参数,特别是ΔGLU0-1和松田指数,在区分RH和PH方面比单独的纳迪尔葡萄糖或症状报告更有效.
- 结合这些动态标记可以提高诊断准确性和临床决策.
- 优化OGTT解释可以减少错误分类,并指导适当的患者管理.
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