生物标志物预测异常的Technetium-99m铁酸盐扫描在怀疑Transthyretin Amyloidosis的患者中
Laura De Michieli1,2, Omar F AbouEzzeddine2, Muhannad A Abbasi2
1Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy.
JACC. CardioOncology
|February 3, 2025
概括
非常低的高灵敏性心脏形素T (hs-cTnT) 水平可以排除在接受99mTc PYP成像的患者中,形素粉样心肌病 (ATTR-CM). 然而,较高的门风险假负结果,限制hs-cTnT和NT-proBNP的实用性确认ATTR-CM.
科学领域:
- 心脏病学 心脏病学
- 核医学就是核医学.
- 生物标志物发现发现
背景情况:
- 99m Tc PYP成像是一种关键的诊断工具,用于跨甲氨基酸心肌病变 (ATTR-CM).
- 像hs-cTnT和NT-proBNP这样的心脏生物标志物可能会分层ATTR-CM风险.
- 评估这些生物标志物以及成像对准确诊断至关重要.
研究的目的:
- 为了评估hs-cTnT和NT-proBNP的预测价值,在接受99mTc PYP成像检查的患者中,怀疑ATTR-CM.
- 为了确定这些生物标志物的实用性,在ATTR-CM中进行裁决或排除.
- 分析大型美国队列中的生物标志物表现.
主要方法:
- 在2013年5月至2022年9月期间接受99mTc PYP成像的患者的回顾性分析.
- 纳入标准:在扫描后6个月内至少进行一次hs-cTnT测量.
- 评估hs-cTnT和NT-proBNP水平用于ATTR-CM诊断.
主要成果:
- 在1442名患者中,ATTR-CM被诊断在29.6%的患者中.
- hs-cTnT < 6 ng/L 显示出 100% 的负预测值和用于排除 ATTR-CM 的灵敏度.
- 提高hs-cTnT门增加了虚假负面风险;ATTR-CM裁决的积极预测值仍然很低.
- NT-proBNP显示了类似的趋势;结合的生物标志物 (hs-cTnT <14 ng/L和NT-proBNP <60 ng/L) 确定了一个没有ATTR-CM的小组.
结论:
- 非常低的hs-cTnT水平可以有效地排除ATTR-CM在接受99mTc PYP成像的患者的一个子集.
- 较高的hs-cTnT值增加了假阴性结果的风险.
- 在ATTR-CM中裁决时hs-cTnT和NT-proBNP的实用性有限,尽管在NT-proBNP和组合策略中观察到类似的趋势.
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