在诊断库希综合征时,对4mg静脉注射德甲抑制试验的多中心30年数据
Caroline Jung1,2, Maresa M Derbyshire1, Niyati Jauhar3
1Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, Fitzroy, VIC 3065, Australia.
Journal of the Endocrine Society
|December 17, 2025
概括
4毫克静脉注射德甲抑制试验 (IVDST) 是诊断库希综合征 (CS) 的敏感工具. 虽然非常准确,但结果需要仔细解释,特别是在CS (LPC) 概率低的情况下.
科学领域:
- 内分泌学 在内分泌学.
- 诊断医学 诊断医学 诊断医学
- 临床化学 临床化学
背景情况:
- 库希综合征 (CS) 的诊断是复杂的.
- 区分CS与具有类似症状的疾病需要可靠的测试.
研究的目的:
- 评估4mg静脉注射德克萨米他抑制试验 (IVDST) 进行CS诊断.
- 区分CS与正常受试者和那些CS (LPC) 概率低的人.
- 在不同的CS亚型 (下垂体,上腺,宫外ACTH) 中表征皮质醇反应.
主要方法:
- 对140名库辛病患者,5名宫外ACTH综合征患者,26名上腺癌患者和97名LPC患者的回顾性分析.
- 包括32个对照组 (正常和超重/肥胖个体).
- 在两天内在多个时间点进行IVDST与皮质醇和ACTH测量.
主要成果:
- 对照组表现出显著的皮质醇抑制.
- 第二天的皮质醇水平>130nmol/L显示了97%的敏感性和87%的特异性对CS.
- 17名患者的皮质醇水平在CS和LPC之间重叠.
结论:
- IVDST是一种高度敏感的CS第二线检测.
- 错误的阴性可能发生在周期性的库希氏病阶段.
- 具体性需要长期对LPC进行跟踪;有限的宫外ACTH综合征病例影响了对ACTH依赖的CS的诊断实用性.
相关概念视频
Drugs for Treatment of Crohn's Disease in IBD Using Glucocorticoids
408
Glucocorticoids, a class of anti-inflammatory drugs, are pivotal in treating moderate to severe Crohn's disease by inducing remission. They exhibit their anti-inflammatory action by inhibiting the production of inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1, and chemokines like IL-8. In addition, they reduce the expression of inflammatory cell adhesion molecules and inhibit gene transcription of nitric oxide synthase, phospholipase A2, cyclooxygenase-2...
408
Drug Dosing: Obese Patients
198
In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
198
Drug Accumulation During Multiple Dosing: Repetitive IV Injections
229
Calculating drug dosage and accumulation in multiple-dose regimens is crucial for achieving therapeutic efficacy while avoiding toxicity. This involves determining the plasma drug concentrations over time to optimize dosing schedules. The principle of superposition is fundamental in this process, allowing for the prediction of drug concentration in plasma following multiple doses based on single-dose data.The principle of superposition asserts that the plasma concentration-time curves from...
229


