上尿路移行上皮细胞癌根治术后复发膀胱肿瘤的高危因素分析

目的 探讨肿瘤部位与上尿路移行上皮细胞癌根治术后复发膀胱肿瘤风险的关系.方法 对行根治手术并获随访的168例上尿路移行上皮细胞癌患者的临床资料进行回顾性总结,比较不同部位上尿路移行上皮细胞癌根治术后复发膀胱肿瘤的风险,采用Cox回归分析术后复发膀胱肿瘤风险的独立影响因素.结果 168例患者术后1、3、5年的无复发膀胱肿瘤的生存率分别为88%、76%和63%.观察期内,共有49例术后发生膀胱肿瘤复发,中位首次复发时间为20个月.肾盂癌术后复发率为30.8%(28/91);输尿管中段癌术后复发率为8.3%(2/24),输尿管下段癌术后复发率为48.7%(19/39).肾盂癌与输尿管癌患者术后无复发膀胱肿瘤生存率比较差异无统计学意义(P>0.05).多因素分析结果显示输尿管下段癌为影响上尿路移行上皮细胞癌根治术后复发膀胱肿瘤风险的独立变量(P<0.01).结论 输尿管下段癌患者术后复发膀胱肿瘤的风险高于其他部位上尿路移行上皮细胞癌.

Abstract：

Objective To investigate the relationship between tumor location and the risk of developing bladder cancer in pafients treated by nephroureterectomy(NU)for upper urinary tract transitional cell carcinoma(UUT-TCC).Methods The clinical data of 168 UUT-TCC patients who underwent NU were reviewed.Univariate and multivariate analysis were carried out to determine the risk factors for intravesical recurrence after NU.Results The recurrence-free survival rate at 1,3 and 5 years after NU were 88%, 76%and 63%.All patients were followed up for a median period of 45(12-107)months During this period, a total of 49 patients developed bladder tamors after surgery,of which 28 cases were renal pelvic carcinoma, 2 cases were rniddle ureter carcinoma and 19 cases were distal ureter carcinoma.The recurrence-free survival of renal pelvic carcinoma and ureter carcinoma had no significant difference by Log-Rank test(P>0.05).On multivariate analysis,only locating in distal ureter carcinoma was the independent risk predictor for intravesical recurrence after NU (P<0.01).Conclusion Pafients with UUT-TCC at distal ureter carry a higher risk for intraeesieal recunerrce after NU than those with TCC at other location of upper urinary tract.

Analysis on high risk factors for recurrent bladder cancer after radical operation on upper urinary tract transitional cell carcinoma

Objective To investigate the relationship between tumor location and the risk of developing bladder cancer in pafients treated by nephroureterectomy(NU)for upper urinary tract transitional cell carcinoma(UUT-TCC).Methods The clinical data of 168 UUT-TCC patients who underwent NU were reviewed.Univariate and multivariate analysis were carried out to determine the risk factors for intravesical recurrence after NU.Results The recurrence-free survival rate at 1,3 and 5 years after NU were 88%, 76%and 63%.All patients were followed up for a median period of 45(12-107)months During this period, a total of 49 patients developed bladder tamors after surgery,of which 28 cases were renal pelvic carcinoma, 2 cases were rniddle ureter carcinoma and 19 cases were distal ureter carcinoma.The recurrence-free survival of renal pelvic carcinoma and ureter carcinoma had no significant difference by Log-Rank test(P>0.05).On multivariate analysis,only locating in distal ureter carcinoma was the independent risk predictor for intravesical recurrence after NU (P<0.01).Conclusion Pafients with UUT-TCC at distal ureter carry a higher risk for intraeesieal recunerrce after NU than those with TCC at other location of upper urinary tract.