Zhao Shan-Chao, Zhang Peng, Huang Zhao-Ming, Zuo Yi, Mao Xiang-Ming, Zheng Shao-Bin
Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
Zhonghua Nan Ke Xue. 2008 Nov;14(11):973-6.
To compare suprapubic puncture and transurethral catheterization for pressure-flow determination during voiding in BPH patients.
Both suprapubic puncture and transurethral catheterization were used for pressure-flow determinations during voiding in 23 BPH patients at the mean age of 69.3 years (range 57-77 years) and the related parameters were compared by t-test.
Compared with transurethral catheterization, suprapubic puncture increased Qmax by 1.19 mn/s (P <0.05) and MMC by 66.61 ml (P <0.01) , and reduced the pressure of detrusor at Qmax (Pdet, Qmax) by 10.57 cmH2O (P < 0.05), URA by 11.39 cmH2O (P < 0.01) and AG by 12.94 (P < 0.01). Either according to the Schäfer diagram or with AG > 40 as the diagnostic standard, there were 16 (69.6%) cases of bladder outlet obstruction (BOO) in the suprapubic puncture group and 20 (87.0%) in the transurethral catheterization group.
In pressure-flow determination during voiding, suprapubic puncture and transurethral catheterization each have its own advantages and disadvantages, but the former is preferred for BPH patients. As for other patients, it all depends on specific conditions.
比较耻骨上穿刺和经尿道插管在良性前列腺增生（BPH）患者排尿时进行压力-流率测定的效果。
对23例平均年龄69.3岁（范围57 - 77岁）的BPH患者，分别采用耻骨上穿刺和经尿道插管进行排尿时的压力-流率测定，并通过t检验比较相关参数。
与经尿道插管相比，耻骨上穿刺使最大尿流率（Qmax）增加1.19ml/s（P <0.05），平均尿流率（MMC）增加66.61ml（P <0.01），并使最大尿流率时逼尿肌压力（Pdet, Qmax）降低10.57cmH₂O（P <0.05），尿道阻力（URA）降低11.39cmH₂O（P <0.01），逼尿肌-尿道外括约肌协同失调（AG）降低12.94（P <0.01）。以Schäfer图或AG>40作为诊断标准，耻骨上穿刺组膀胱出口梗阻（BOO）16例（占69.6%），经尿道插管组20例（占87.0%）。
在排尿压力-流率测定中，耻骨上穿刺和经尿道插管各有优缺点，但对于BPH患者，前者更优。对于其他患者，则需视具体情况而定。
