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Objective:A prospective randomized controlled trial was conducted to evaluate the optimal treatment for bladder outlet obstruction（BOO） caused by BPH of small volume.Methods:From December 2002 to December 2005,60 patients with small volume BPH were divided two groups randomizly.Among of them, transurethral plasmakinetic resection of the prostate（PKRP）group were 30 cases,transurethral plasmakinetic resection of the prostate plus transurethral incision of bladder neck（PKRP plus TUIBN）group were 30 cases,following up 6 months,international prostate symptom score （IPSS）,quality of life（QOL）,maximal flow rate(Qmax),post-void residual urine volume（PVR）of preoperative and postoperative were observed respectively.Results:There were no significant differences in the two groups with regard to patient age,prostate weight,preoperative IPSS,QOL,Qmax、PVR of preoperative,surgical duration,resection weight,bleeding volume during the operation（P＞0.05,respectively）.IPSS、QOL、PVR of postoperative were decreased,Qmaxof postoperative were increased in both two groups.However indices postoperatively including IPSS、QOL、Qmax,and PVR showed significant differences between two groups.Between PKRP group and PKRP plus TUBIN group,IPSS were 10.4±4.9 and 5.7±2.4,（P＜0.001）.QOL were 2.7±1.4 and 1.4±1.0,（P＜0.001）.Qmaxwere 12.5±3.8 and 20.0±4.2,（P＜0.001）.PVR were 49.8±91.0 and 13.7±14.2,（P=0.002）.Conclusions:PKRP plus TUIBN was proved to be an ideal method for management of patients with BOO caused by small volume BPH.
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