Gerber G S, Chodak G W, Rukstalis D B
University of Chicago Pritzker School of Medicine, Illinois.
Urology. 1995 Feb;45(2):230-3. doi: 10.1016/0090-4295(95)80010-7.
The feasibility and efficacy of combined cystoscopic and laparoscopic neodymium: yttrium-aluminum-garnet (Nd:YAG) laser coagulation of invasive bladder cancer were investigated.
Five patients with extensive Stage T2-T3a bladder cancer who were not candidates for radical cystectomy were treated by Nd:YAG laser irradiation. All patients also underwent transperitoneal laparoscopic mobilization of the intestine away from the bladder with continuous monitoring of the laser treatment. In 2 cases, laser therapy of the serosal surface of the bladder at the site of tumor was also administered.
The procedure was completed without complications in all 5 patients. A mean of 58,607 joules (J) of energy was delivered transurethrally with an additional 8000 to 10,000 J utilized via laparoscopy in 2 cases. Local disease recurrence was noted within 1 to 4 months in 4 of the 5 patients. Distant metastases were detected within 1 to 9 months postoperatively in 3 of 5 patients. No perioperative bowel or bladder perforation occurred.
The use of laparoscopy allows for the safe delivery of large amounts of laser energy to the bladder. However, in this small group of patients with extensive bladder tumors, effective palliation of local disease could not be reliably achieved. Further study is necessary to determine whether treatment modifications or selection of patients with less extensive tumors will lead to better results with combined laparoscopic and cystoscopic laser therapy.
研究联合膀胱镜和腹腔镜钕:钇铝石榴石(Nd:YAG)激光凝固术治疗浸润性膀胱癌的可行性和疗效。
对5例不适合行根治性膀胱切除术的广泛T2 - T3a期膀胱癌患者采用Nd:YAG激光照射治疗。所有患者均接受经腹腹腔镜肠管离膀胱游离术,并持续监测激光治疗。2例患者还对肿瘤部位的膀胱浆膜面进行了激光治疗。
所有5例患者手术均顺利完成,无并发症发生。经尿道平均输送能量58,607焦耳(J),2例患者通过腹腔镜额外使用了8000至10,000 J能量。5例患者中有4例在1至4个月内出现局部疾病复发。5例患者中有3例在术后1至9个月内检测到远处转移。未发生围手术期肠穿孔或膀胱穿孔。
腹腔镜的使用可使大量激光能量安全地作用于膀胱。然而,在这一小群患有广泛膀胱肿瘤的患者中,无法可靠地实现局部疾病的有效缓解。有必要进一步研究,以确定治疗方法的改进或选择肿瘤范围较小的患者是否会使腹腔镜和膀胱镜联合激光治疗取得更好的效果。