摘要目的 评价原位螺旋构型回肠新膀胱术的疗效.方法 1998-2008年对32例男性膀胱癌患者行原位螺旋构型回肠新膀胱术.采用40～45 cm回肠新建储尿囊,去管后用无水乙醇擦拭以清除、破坏黏液细胞,螺旋状构型缝合成低压储尿囊.两侧输尿管末端袖口状整形后分别行原位"插入式"置入新膀胱(Split-Cuff术式).新建储尿囊采用"四针法"低位与尿道缝合.结果 本组平均手术时间(281.2±48.7)min;平均失血量(545.4±181.9)ml,术中输血20例,平均输血(430.8±235.9)ml;平均住院时间(26.8±9.7)d.白天控尿良好30例(93.7%),夜间控尿良好26例(81.3%).23例于术后6个月复查尿动力学提示新膀胱初始尿意容量为270～420(315.0±33.4)ml,最大膀胱容量350～600(490.3±39.7)ml,充盈压(22.5±11.8)cm H2O,最大排尿压(78.3±14.7)cm H2O,最大尿流率(16.5±5.9)ml/s.术后随访22～132个月,平均58.4个月,术后2年内死于肿瘤转移4例.结论 原位螺旋形回肠新膀胱具有容量大、相对低压、顺应性好、肠管利用率高、消化道干扰小和术后排尿、控尿功能更接近正常生理等特点.新膀胱经无水乙醇处理后减少了分泌吸收功能,降低了尿路梗阻和代谢紊乱发生率.输尿管新膀胱Split-Cuff乳头"插入式"吻合可有效防止尿液反流,且方法简单,不易引起管口狭窄,有效地保护了肾功能.尿道以"四针法"吻合简单、实用,可减少吻合口狭窄的发生率.改良螺旋构型回肠新膀胱术是一种较为合理的原位膀胱替代方法.

abstractsObjective To assess the outcomes of modified spiral ileal orthotopic neobladder.Methods From January 1998 to January 2008, 32 patients (all male) underwent radical cystectomy and spiral ileal orthotopic substitution for muscle invasive bladder cancer. A segment of 40 to 45 cm ileal loop was isolated, detubularized, and reconfigured in spiral shape to form a pouch. Bilateral ureters were reimplanted by inserting the 1 cm distal segment into the pouch to form a Split-Cuff nipple.The bottom of the pouch was opened and anastomosed with the urethra (4 stitches). Results There were no perioperative deaths. The mean operative time was 281.2±48.7 min. Blood loss was 545.4±181.9 ml. Twenty cases required a blood transfusion, the mean volume of intraoprative blood transfusion was 430.8±235.9 ml. The average hospital stays were 26.8±9. 7 days. Rate of daytime continence was 93. 7% (30/32) while nighttime continence was 81.3% (26/32). Urodynamic studies were carried out in 23 cases 6 months after surgery. Neobladder capacity at first desire to urinate was 315.0± 33.4 ml(270-420 ml). The maximum neobladder capacity was 490. 3±39.7 ml(350-600 ml).The maximum flow rate (Qmax) was 16.5 ± 5.9 ml/s. Full resting pressure was 22. 5 ± 11.8 cm H2O. Peak voiding pressure was 78.3 ± 14.7 cm H2O. After mean 58. 4 months' follow up (range 22 to 132), 4 cases died of metastasis of bladder cancer. Conclusion Modified spiral ileal orthotopic neobladder is a reasonable option for treating invasive bladder cancer.