J Urol:Cxbladder Resolve(CxbR)在尿路上皮癌风险患者中的诊断性能如何?

2021-08-31 AlexYang MedSci原创

血尿是尿路上皮癌(UC)的一个常见的临床表现,也是UC的主要症状。

血尿是尿路上皮癌(UC)的一个常见的临床表现,也是UC的主要症状。美国泌尿外科协会(AUA)指南建议对血尿患者进行临床检查,但只有0.5-5%的无症状微血尿患者和10-15%的严重血尿患者最终确认为UC

Cxbladder(Cxb)检测将尿液中的基因组生物标志物与表型和临床数据相结合,可将血尿患者分为尿路上皮癌(UC)的低概率患者或高概率患者。Cxbladder Resolve (CxbR)用于Cxb Triage (CxbT)和Detect (CxbD)之后,以确定高概率UC肿瘤患者。近期,有研究人员验证了CxbR在识别高等级肿瘤(HIT)方面的诊断性能,并验证了Cxb检测区分高等级和低等级肿瘤的算法

CxbR是在美国、澳大利亚和新西兰的三项研究中开发的,共纳入了863名血尿患者。在美国的一项前瞻性观察研究中,研究人员在548名血尿患者中对CxbR进行了验证,同时也验证了CxbR与其他Cxb测试相结合的效果。所有诊断的UC都通过组织病理学证实。

在开发数据集中,CxbR识别HIT的敏感性为92.4%(95% CI 83.3-96.7),特异性为93.8%(95% CI 86.8-97.2)。在外部验证中,Cxb测试正确地避免了87.6%患者的进一步检测(阴性预测值99.4%);100%正确识别HIT(特异性96.3%),漏诊了三例低级别肿瘤。在这两项研究中,所有HIT患者均正确地分配到优先评估。

CxbR诊断性能特征情况

综上所述,CxbR具有很高的敏感性和特异性,能正确识别所有HIT。Cxb测试能准确区分出HIT低/高概率患者,其诊断率比AUA指南分层高4.8倍。

原始出处:

Jay D Raman , Laimonis Kavalieris , Badrinath Konety et al. The Diagnostic Performance of Cxbladder Resolve, Alone and in Combination with Other Cxbladder Tests, in the Identification and Priority Evaluation of Patients at Risk for Urothelial Carcinoma. J Urol. Aug 2021

 

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    2022-04-18 sjq027
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    2021-09-01 swallow
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    2021-09-02 hongbochen
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