基于不良病理学特征的膀胱尿路上皮癌预后因素分析

Effect of high-risk pathological features on the prognosis of urothelial carcinoma of the bladder

目的:探讨膀胱癌患者根治性全切标本中不良病理学特征与患者预后的关系。方法:回顾性收集2006年1月1日—2023年12月1日于北京大学第一医院泌尿外科就诊并接受手术治疗患者的临床病理资料和预后信息,共纳入1158例患者。主要研究终点为总生存期(overall survival,OS)。使用Kaplan-Meier法绘制生存曲线,采用单因素和多因素Cox比例风险回归模型评估患者不良病理学特征对患者预后的影响。结果:1158例患者中男957例,女性201例;年龄22~92岁,中位年龄65.91(14)岁。平均随访时间39.75个月,性别(男vs女)、T分期(T2、T3、T4 vs T1)、淋巴结密度、鳞状化生、腺样分化、脉管侵犯和未分化癌是膀胱癌根治术后患者预后不良的独立危险因素(P<0.05)。而WHO分级、肉瘤样分化、肿瘤坏死、神经浸润、前列腺尿道受累等组织病理学因素,与不伴有相应不良病理因素患者的OS相比,差异无统计学意义(P>0.05)。多因素Cox比例风险回归模型结果显示,T分期(T3、T4 vs T1)和脉管侵犯是OS的独立预后因素(P<0.05)。结论:T分期(T3、T4 vs T1)和脉管侵犯是膀胱尿路上皮癌患者根治术后OS的独立预后因素,对术后高危患者的早期识别具有临床意义,并有助于指导进一步治疗。

Objective To investigate the relationship between adverse pathological features in bladder cancer patients and patients'prognosis.Methods Clinicopathological data and prognostic information of bladder cancer patients who were admitted to the Department of Urology at the Peking University First Hospital,and underwent radical cystectomy from January 1st,2006 to December 1st,2023 were retrospectively collected,and a total of 1158 patients were included.The primary study endpoint was overall survival(OS).Survival curves were plotted using the Kaplan-Meier method,and the effect of adverse pathologic characteristics of patients on their prognosis was assessed using univariate and multivariate Cox proportional hazardous regression models.Results There were a total of 957 males and 201 females enrolled,aged 65.91(14)years(range:22 to 92).The mean follow-up period was 39.75 months.Sex(male vs female),T stage(T2,T3,T4 vs T1),lymph node density,squamous metaplasia,adenoidal differentiation,vascular invasion,and undifferentiated carcinoma were independent risk factors in poor prognosis for bladder cancer patients after radical cystectomy(P<0.05).In contrast,the histopathological factors such as WHO grade,sarcomatoid differentiation,tumor necrosis,nerve infiltration,and prostatic urethral involvement did not show statistically significant differences in OS compared with those of patients without the corresponding adverse pathological factors(P>0.05).The results of the multivariate Cox proportional hazardous regression model showed that patients'T stage(T3,T4 vs T1)and vascular invasion were independent prognostic factors in OS(P<0.05).Conclusion T stage(T3,T4 vs T1)and vascular invasion are independent prognostic factors in OS for patients with urothelial carcinoma of the bladder after radical cystectomy,which is clinically significant for the early identification of high-risk postoperative patients and helps to guide further treatment.