目標：我們以前瞻性隨機的方式比較導管協助的單極電刀經尿道攝護腺切除術和雙極電刀經尿道攝護腺切除術的安全和效益。材料和方法：共有85位男性病人以隨機的方式分為導管協助的單極電刀經尿道攝護腺切除術（43位病人）和雙極電刀經尿道攝護腺切除術（42位病人）。對於國際攝護腺症狀評分、最大尿流速、手術時間、尿管放置時間、住院時間、術中平均持續引流速度和膀胱壓力、手術耗材的費用皆做記錄和比較。所有病人皆最少追蹤一年。結果：發現導管協助的單極電刀經尿道攝護腺切除術有達到顯著性差異的移除組織速度。這個研究中的兩個方法在手術時間、尿管放置時間、住院時間、術後變動的血液鈉和血紅素數值、術後攝護腺減少的量、術後增加的最大尿流速和國際攝護腺症狀評分改善的程度皆相當。術中平均膀胱壓力沒有顯著性差異（導管協助的單極電刀法24.5公分水柱，雙極電刀法20.5公分水柱，p值是0.44）。然而在術中平均持續引流速度有顯著性差異（導管協助的單極電刀法245毫升／分鐘，雙極電刀法345毫升／分鐘，p值是0.03）。沒有病人在術後發生經尿道切除術症狀。在最少一年的追蹤時間裡導管協助的單極電刀法中並沒有病人發生尿道狹窄，而在雙極電刀法中有一位病人發生尿道狹窄。結論：導管協助的單極電刀法經過最少一年的追蹤後發現是一個安全的手術方式且術後結果與雙極電刀法相似。這個新的經尿道攝護腺切除術還需要更長的時間來觀察這個手術方式的長期結果。

OBJECTIVES: To assess and compare the safety and efficacy of catheter-assisted transurethral resection of the prostate (CA-TURP) with Gyrus Plasmasect loop bipolar TURP in a prospective randomized study.MATERIALS AND METHODS: In total, 85 men were randomized into either bipolar TURP (43 patients) or CATURP (42) groups. The variables evaluated included the International Prostate Symptom Score (IPSS), the maximum urinary flow rate (Q(subscript max)), the duration of the operation, Foley catheterization time, hospital stay length, mean intraoperative continuous flow rate and intravesical pressure, and cost of disposable materials. All patients were followed-up for at least 1 year after surgery.RESULTS: The CA-TURP group had a significantly faster tissue removal rate. Both study groups showed comparable results for operative time, duration of postoperative catheterization, length of hospital stay, changes in serum sodium and hemoglobin levels, prostatic volume, Q(subscript max), and IPSS. There was no significant difference in the mean intraoperative intravesical pressure (24.5cmH2O in the CA-TURP group and 20.5cmH2O in the bipolar TURP group, p=0.44). However, there was a significant difference in the mean intraoperative irrigation rate (425ml/min in the CA-TURP group and 345ml/min in the bipolar TURP group, p=0.03). None of the patients suffered from transurethral resection (TUR) syndrome postoperatively. After 1 year of follow-up, none of the patients had suffered from urethral stricture in the CATURP group, while urethral stricture formation was observed in 1 patient in the bipolar TURP group.CONCLUSIONS: CA-TURP is safe and produced results at 1 year similar to those with Gyrus Plasmasect loop bipolar TURP. This new method for TURP appears to be comparable to bipolar TURP, although a longer period of observation is needed to assess the durability of the results.