Smith J A
Department of Surgery, University of Utah Health Sciences Center, Salt Lake City.
J Urol. 1989 Nov;142(5):1221-2. doi: 10.1016/s0022-5347(17)39035-3.
Sapphire tips increase the energy density and cutting effect of a neodymium:YAG laser. Sapphire tipped neodymium:YAG laser fibers were used to perform urethrotomy in 24 men with benign urethral strictures. The cutting effect was inadequate in 10 patients. Of the 24 patients 16 (67%) had a recurrent stricture within 1 year. Sapphire tipped neodymium:YAG laser fibers offer no apparent advantage over cold knife urethrotomy for treatment of benign urethral strictures.
蓝宝石尖端可提高钕钇铝石榴石激光的能量密度和切割效果。使用蓝宝石尖端的钕钇铝石榴石激光纤维对24例男性良性尿道狭窄患者进行尿道切开术。10例患者的切割效果不佳。24例患者中有16例（67%）在1年内出现复发性狭窄。对于治疗良性尿道狭窄，蓝宝石尖端的钕钇铝石榴石激光纤维相比冷刀尿道切开术并无明显优势。
