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European Radiology:RCC超声引导下经皮MWA治疗,真的经得起时间的考验吗?

2021-11-22 shaosai MedSci原创

对于被诊断为临床T1a(cT1a)肾细胞癌(RCC)的患者,治疗的目标是在去除肿瘤的情况下尽可能大的保留正常肾实质的。

对于被诊断为临床T1a(cT1a)肾细胞癌(RCC)的患者,治疗的目标是在去除肿瘤的情况下尽可能大的保留正常肾实质现阶段消融术是实质的重要术式之一。然而国际指南建议,消融术主要应用于肿瘤直径3厘米以下或无法进行手术的RCC患者。

微波消融(MWA)作为一种新兴的消融技术具有温度高、消融量大、消融时间短等优势已被广泛应用于多种肿瘤的治疗。在2005年首次应用于RCC治疗后,RCC的MWA在过去十年中取得了快速发展。与RFA和CA类似,RCC的MWA可以通过经皮、开放或腹腔镜方法进行。超声(US)和计算机断层扫描(CT)引导下的经皮通路是RCC的MWA中最常用的方法。

与CT相比,US的优点是实时、便宜、方便,而且没有辐射或肾脏毒性。然而据我们所知,对MWA在cT1 RCC中的表现及效果评估的相关研究十分有限近日,发表在European Radiology杂志的一项研究为US引导下经皮MWA治疗cT1 RCC提供了实战经验,并为大众提供成熟的随访和大型多中心累积数据US MWA的进一步广泛应用铺平了道路

项回顾性研究回顾了2006年4月至2019年12月期间接受微波消融手术的T1N0M0肾细胞癌患者收集了临床病理和程序数据。评估了技术效果和并发症,并采用Kaplan-Meier方法进行癌症特异性生存、无病生存、总生存和局部肿瘤过程分析。 

共有323名连续患者(平均年龄,62.9岁±14.0),371个活检证实的肿瘤(平均直径,2.9厘米±1.2)入选,42.6%的肿瘤位于集合系统/肠道附近,360个(97.0%)肿瘤达到技术有效性。对于275名cT1a患者,在中位随访时间为66.0个月(IQR,58.4-73.6),10年的局部肿瘤进展、癌症特异性生存、无病生存和总生存率分别为1.9%、87.4%、71.8和67.5%。对于48名cT1b患者,在30.4个月的中位随访时间内(IQR,17.7-44.8),5年的局部肿瘤进展、癌症特异性生存、无病生存和总生存率分别为11.3%、91.4%、69.1和89.2%。主要并发症在cT1a(3.5%)和cT1b(6.9%)患者之间没有差异(p = 0.28)。基于多变量模型建立的临床风险分层系统可以预测DFS和CSS,其c指数分别为0.78(95%CI:0.71-0.85)和0.77(95%CI:0.65-0.90)。 

 

 Kaplan-Meier分析疾病生存率。a 所有cT1患者。b cT1a组。cT1b组。竖线表示删减的病人

本研究提供了超过10年的多机构经验,研究结果拥有全球最大的cT1 RCC的MWA队列,研究结果显示MWA术后患者具有良好的生存预后肿瘤进展RCC患者提供了一个极佳的术式选择

原文出处

Jie Yu,Hui Wang,Zhi-Gang Cheng,et al.A multicenter 10-year oncologic outcome of ultrasound-guided percutaneous microwave ablation of clinical T1 renal cell carcinoma: will it stand the test of time?DOI:10.1007/s00330-021-07900-2

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    2022-10-08 feather89
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    2022-10-12 isabellayj

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