Recent innovations in thulium laser techniques have allowed application in the treatment of bladder cancer.Laser en bloc resection of bladder cancer is a transurethral procedure that may offer an alternative to the co...Recent innovations in thulium laser techniques have allowed application in the treatment of bladder cancer.Laser en bloc resection of bladder cancer is a transurethral procedure that may offer an alternative to the conventional transurethral resection procedure.We conducted a review of basic thulium laser physics and laser en bloc resection procedures and summarized the current clinical literature with a focus on complications and outcomes.Literature evidence suggests that thulium laser techniques including smooth incision,tissue vaporization,and en bloc resection represent feasible,safe,and effective procedures in the treatment of bladder cancer.Moreover,these techniques allow improved specimen orientation and accurate determination of invasion depth,facilitating correct diagnosis,restaging,and reevaluation of the need for a second resection.Nonetheless,large-scale multicentre studies with longer follow-up are warranted for a robust assessment.The present review is meant as a quick reference for urologists.展开更多
Background Transurethral resection of the bladder tumor （TURBT） remains the gold standard for non-muscle-invasive bladder cancer （NMIBC）. Laser techniques have been widely used in urology. This analysis aimed to a...Background Transurethral resection of the bladder tumor （TURBT） remains the gold standard for non-muscle-invasive bladder cancer （NMIBC）. Laser techniques have been widely used in urology. This analysis aimed to assess the safety and efficacy of holmium resection of the bladder tumor （HoLRBT）vs. TURBT. Methods A systemic search of MEDLINE, Embase, Web of Science, and The Cochrane Library as well as manual bibliography searches were performed to identify the relevant studies. The pooled estimates of operation time, obturator nerve reflex rate, bladder perforation rate, bladder irrigation rate, catheterization time, hospital stay, and one- and two-year recurrence free survivals were calculated. Results Five studies were enrolled into our meta-analysis. No significant difference was observed in the operation time between groups （weighted mean difference （WMD） 1.01, 95% confidential interval （95% CI） -3.52-5.54, P=0.66）. The significant difference in the obturator nerve reflex （OR 0.05, 95% CI 0.01-0.04, P=0.004）, bladder perforation （OR 0.14, 95% CI 0.03-0.61, P=-0.009）, bladder irrigation （OR 0.13, 95% CI 0.04-0.45, P=0.001）, catheterization time （WMD -0.96, 95% C1-1.11 to-0.82, P 〈0.00001）, and hospital stay （WMD-1.46, 95% C1-1.65 to-1.27, P 〈0.00001）showed advantages of HoLRBT over TURBT. The 2-year recurrence free survival rate favors the HoLRBT group （OR 1.46, 95% CI 1.02-2.11, P=-0.04）. Conclusions As a promising technique, HoLRBT is safe and efficient, and showed several advantages over TURBT. HoLRBT can be used as an alternative procedure for TURBT in terms of low-grade papillary urothelial carcinoma or low-grade early TNM-stage urothelial carcinoma.展开更多
目的探讨等离子膀胱瘤整块切除术(bipolar plasma kinetic en-bloc resection of bladder tumor,PK-ERBT)、传统经尿道膀胱肿瘤电切术(transurethral resection of bladder tumor,TURBT)和绿激光膀胱肿瘤整块剜除(green-light laser en ...目的探讨等离子膀胱瘤整块切除术(bipolar plasma kinetic en-bloc resection of bladder tumor,PK-ERBT)、传统经尿道膀胱肿瘤电切术(transurethral resection of bladder tumor,TURBT)和绿激光膀胱肿瘤整块剜除(green-light laser en bloc enucleation of bladder tumors,GLEBT)治疗非肌层浸润性膀胱癌的疗效。方法回顾性选取104例非肌层浸润性膀胱癌患者作为研究对象,按照手术方法不同分为PK-ERBT组(35例)、TURBT组(34例)和GLEBT组(35例)。比较3组患者围手术期情况(手术时间、住院天数、导尿管留置时间)、术后1年肿瘤预后标志物(P53蛋白、ki-67蛋白)表达情况、并发症发生率及复发率。结果3组围术期相关指标比较,差异有统计学意义(P<0.05)。GLEBT组与PK-ERBT组手术时间比较,无统计学意义(P>0.05);GLEBT组、PK-ERBT组手术时间、导尿管留置时间、住院天数均少于TURBT组(P<0.05);GLEBT组导尿管留置时间、住院天数少于PK-ERBT组(P<0.05)。3组术后1年肿瘤预后标志物表达情况比较,差异有统计学意义(P<0.05);PK-ERBT组、GLEBT组P53蛋白、ki-67蛋白阳性率比较,无统计学差异(P>0.05);但PK-ERBT组、GLEBT组P53蛋白、ki-67蛋白阳性率低于TURBT组(P<0.05)。3组并发症发生率比较,差异有统计学意义(P<0.05);其中PK-ERBT组、GLEBT组并发症发生率比较,差异无统计学意义(P>0.05);但PK-ERBT组、GLEBT组并发症发生率均低于TURBT组(P<0.05)。3组患者术后1年复发率比较,差异有统计学意义(P<0.05);PK-ERBT组、GLEBT组复发率均低于TURBT组(P<0.05),但PK-ERBT组、GLEBT组复发率比较,无统计学差异(P>0.05)。结论治疗非肌层浸润性膀胱癌患者,采用GLEBT相比PK-ERBT、TURBT具有更高的安全性,有望成为治疗该病的推荐手术方式。展开更多
文摘Recent innovations in thulium laser techniques have allowed application in the treatment of bladder cancer.Laser en bloc resection of bladder cancer is a transurethral procedure that may offer an alternative to the conventional transurethral resection procedure.We conducted a review of basic thulium laser physics and laser en bloc resection procedures and summarized the current clinical literature with a focus on complications and outcomes.Literature evidence suggests that thulium laser techniques including smooth incision,tissue vaporization,and en bloc resection represent feasible,safe,and effective procedures in the treatment of bladder cancer.Moreover,these techniques allow improved specimen orientation and accurate determination of invasion depth,facilitating correct diagnosis,restaging,and reevaluation of the need for a second resection.Nonetheless,large-scale multicentre studies with longer follow-up are warranted for a robust assessment.The present review is meant as a quick reference for urologists.
文摘Background Transurethral resection of the bladder tumor （TURBT） remains the gold standard for non-muscle-invasive bladder cancer （NMIBC）. Laser techniques have been widely used in urology. This analysis aimed to assess the safety and efficacy of holmium resection of the bladder tumor （HoLRBT）vs. TURBT. Methods A systemic search of MEDLINE, Embase, Web of Science, and The Cochrane Library as well as manual bibliography searches were performed to identify the relevant studies. The pooled estimates of operation time, obturator nerve reflex rate, bladder perforation rate, bladder irrigation rate, catheterization time, hospital stay, and one- and two-year recurrence free survivals were calculated. Results Five studies were enrolled into our meta-analysis. No significant difference was observed in the operation time between groups （weighted mean difference （WMD） 1.01, 95% confidential interval （95% CI） -3.52-5.54, P=0.66）. The significant difference in the obturator nerve reflex （OR 0.05, 95% CI 0.01-0.04, P=0.004）, bladder perforation （OR 0.14, 95% CI 0.03-0.61, P=-0.009）, bladder irrigation （OR 0.13, 95% CI 0.04-0.45, P=0.001）, catheterization time （WMD -0.96, 95% C1-1.11 to-0.82, P 〈0.00001）, and hospital stay （WMD-1.46, 95% C1-1.65 to-1.27, P 〈0.00001）showed advantages of HoLRBT over TURBT. The 2-year recurrence free survival rate favors the HoLRBT group （OR 1.46, 95% CI 1.02-2.11, P=-0.04）. Conclusions As a promising technique, HoLRBT is safe and efficient, and showed several advantages over TURBT. HoLRBT can be used as an alternative procedure for TURBT in terms of low-grade papillary urothelial carcinoma or low-grade early TNM-stage urothelial carcinoma.
文摘目的探讨等离子膀胱瘤整块切除术(bipolar plasma kinetic en-bloc resection of bladder tumor,PK-ERBT)、传统经尿道膀胱肿瘤电切术(transurethral resection of bladder tumor,TURBT)和绿激光膀胱肿瘤整块剜除(green-light laser en bloc enucleation of bladder tumors,GLEBT)治疗非肌层浸润性膀胱癌的疗效。方法回顾性选取104例非肌层浸润性膀胱癌患者作为研究对象,按照手术方法不同分为PK-ERBT组(35例)、TURBT组(34例)和GLEBT组(35例)。比较3组患者围手术期情况(手术时间、住院天数、导尿管留置时间)、术后1年肿瘤预后标志物(P53蛋白、ki-67蛋白)表达情况、并发症发生率及复发率。结果3组围术期相关指标比较,差异有统计学意义(P<0.05)。GLEBT组与PK-ERBT组手术时间比较,无统计学意义(P>0.05);GLEBT组、PK-ERBT组手术时间、导尿管留置时间、住院天数均少于TURBT组(P<0.05);GLEBT组导尿管留置时间、住院天数少于PK-ERBT组(P<0.05)。3组术后1年肿瘤预后标志物表达情况比较,差异有统计学意义(P<0.05);PK-ERBT组、GLEBT组P53蛋白、ki-67蛋白阳性率比较,无统计学差异(P>0.05);但PK-ERBT组、GLEBT组P53蛋白、ki-67蛋白阳性率低于TURBT组(P<0.05)。3组并发症发生率比较,差异有统计学意义(P<0.05);其中PK-ERBT组、GLEBT组并发症发生率比较,差异无统计学意义(P>0.05);但PK-ERBT组、GLEBT组并发症发生率均低于TURBT组(P<0.05)。3组患者术后1年复发率比较,差异有统计学意义(P<0.05);PK-ERBT组、GLEBT组复发率均低于TURBT组(P<0.05),但PK-ERBT组、GLEBT组复发率比较,无统计学差异(P>0.05)。结论治疗非肌层浸润性膀胱癌患者,采用GLEBT相比PK-ERBT、TURBT具有更高的安全性,有望成为治疗该病的推荐手术方式。
