ABSTRACT
Objective To compare the safety and efficacy of greenlight photos selective vaporization and RevoLix 2 micron continuous wave laser vaporesection for the treatment of superficial bladder tumor. Methods Under sacral anesthesia or epidural anesthesia,a total of 42 patients with superficial bladder tumor were treated with greenlight photos selective vaporization while the other 42 patients received the RevoLix 2 micron continuous wave laser Vaporesection. The clinical stage of the patients was T1-T2,and the pathology grade was G1-G2. Results The greenlight photos selective vaporization and RevoLix 2 micron continuous wave laser vaporesection were successfully completed in all of the patients. No patients required blood transfusion. No complications such as obturator nerve reflex,bladder perforation or overhydration occurred. No significant difference was noticed in the operation time [(15.3?10.5) min vs (14.3?6.5) min,t=0.525,P=0.601],catheterization time [(6.3?0.5) d vs (6.3?1.2) d,t=0.000,P=0.999],and postoperative hospital stay [(6.3?3.5) d vs (7.2?2.4) d,t=-1.374,P=0.173]. The patients were followed up for 6 months,during the period the recurrence rate was 11.9%(5/42) and 7.1%(3/42) respectively in the greenlight group and RevoLix group (?2=0.138,P=0.710). Conclusions Both greenlight photos selective vaporization and RevoLix 2 micron continuous wave laser vaporesection are effective and safe for superficial bladder tumor and lead to low rates of postoperative complications and recurrence. Further studies are necessary to evaluate its long-term effect. For T2 and higher grades of bladder tumors,open surgery should be performed.