Abstract
Objective：To compare clinical results of holumium laser enucleation of the prostate（HoLEP）using the 78W and the 100W energy outputs.
Methods：From March to July 2010, 34 patients were treated by HoLEP using the 78W setting and 21 cases of HoLEP were performed by the 100W output.
Results：There were no significant differences in enucleated tissue weight or total energy used in two groups, but the average enucleation time in the 100W group was significantly shorter.（44.8 v 50.7g, 130.5 v 127.6kJ, 49.7 v 41.8 min,P＜0.05）For enucleation efficiency, there was significant increase in the gm per minute and the kJ per minute in the 100W group. There was no significant difference in the kJ per gm.（0.89 v 1.14g/min, 2.62 v 3.08kJ/min, 3.68 v 3.07kJ/g）
Conclusions：Faster enucleation time was achieved with the 100W as larger power output resulted in increase of gm per minute.
