Eur Urol:内窥镜保肾手术治疗前的风险分层

2021-06-06 AlexYang MedSci原创

在过去的几十年里,根治性肾切除术(RNU)与膀胱袖口切除术一直是上尿路上皮癌(UTUC)患者治疗的金标准。这种根治性的方法主要是由 "安全第一 "的理念驱动的,因为这种疾病难以分期,具有潜在的侵袭。最

在过去的几十年里,根治性肾切除术(RNU)与膀胱袖口切除术一直是上尿路上皮癌(UTUC)患者治疗的金标准。这种根治性的方法主要是由 "安全第一 "的理念驱动的,因为这种疾病难以分期,具有潜在的侵袭。最近,在选择的UTUC患者中,远端节段性尿道切除术和内窥镜激光消融术已确定为RNU的有效替代治疗方法。

之前的一些研究小组提出了识别低风险患者的特征,这些患者在内窥镜上尿路上皮癌(UTUC)保肾手术中可能会获益。

近期,有研究人员评估了标准的风险分层特征,建立了一个识别≥pT2/N+分期的最佳模型,即需要根治性肾切除术(RNU)的分期,并与现有的未经验证的模型进行了比较

他们进行的是一项合作的回顾性研究,包括2000年至2017年期间因非转移性UTUC而接受输尿管结肠镜检查与活检,之后进行了RNU的1214名患者。研究人员对缺失数据进行了链式方程的多重替代计算,并采用逐步选择算法进行了多变量逻辑回归分析,目的是建立最佳的预测模型,使用了曲线下面积和决策曲线分析用来进行模型比较。

总的来说,有659名(54.3%)和555名(45.7%)患者分别患有≤pT1N0/Nx和≥pT2/N+疾病。在模型的多变量逻辑回归分析中,年龄(几率[OR]1.02,95%置信区间[CI]1.0-1.03,p=0.013),高等级活检(OR 1.81,95%CI 1.37-2.40,p<0.001),活检cT1+分期(OR 3.23,95%CI 1.93-5.41,p<0.001),术前肾积水(OR 1. 37 95% CI 1.04-1.80, p=0.024)、肿瘤大小(OR 1.09, 95% CI 1.01-1.17, p=0.029)、影像学表现的侵袭(OR 5.10, 95%CI 3.32-7.81, p<0.001)和无柄结构(OR 2.31, 95%CI 1.58-3.36, p<0.001)均与≥pT2/pN+疾病显著相关。与现有的模型相比,他们的模型具有最高的准确性(75% vs 66-71%)和额外的临床净减少额(每100名患者中有4名)。

不同模型的决策曲线分析比较

总而言之,他们提出的风险分层模型可以预测≥pT2/N+的UTUC风险,且具有可靠的准确性,并且临床净收益超过了现有的风险分层模型

原始出处:

Beat Foerster , Mohammad Abufaraj , Surena F Matin et al. Pretreatment Risk Stratification for Endoscopic Kidney-sparing Surgery in Upper Tract Urothelial Carcinoma: An International Collaborative Study. Eur Urol. May 2021

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