Abstract: Objective：To evaluate the safety and feasibility of Moses technology 120W holmium laser treated in “Three lines and one layer” method for elderly patients with combined benign prostate hyperplasia(BPH) and bladder stones.Methods：The Moses technology 120W holmium laser treated in “Three lines and one layer” method for 35 elderly patients who had combined BPH and bladder stones during Jun.2018 to Aug.2019.Results：All 35 patients were able to smoothly recover from the operation with no major bleeding,urinary incontinence or other side effects.The average operation time was(54.34±9.88) min,and the average reduction of hemoglobin before and after operation was(5.80±4.04)g/L.Medical measurement follow up after operation within 3 months,like IPSS,QOL and Qmax were noticeably improved and no sign of new growth of bladder stones.Conclusion：The Moses technology120Wholmium laser treated in “Three lines and one layer” method which is more efficient laser lithotripsy for elderly patients combined with BPH and bladder stones.In addition to significantly reduced stone retropulsion,and displayed a margin of safety that may result in a shorter procedural time and safer lithotripsy.

Key words: holmium laser enucleation of the prostate, benign prostatic hyperplasia, moses technology, bladder stones