Zhu Bi Song, Jiang Hui Chuan, Li Yuan
Department of Urology, Xiang Ya Hospital, Central South University, Changsha, China.
J Int Med Res. 2016 Oct;44(5):1034-1039. doi: 10.1177/0300060516657700. Epub 2016 Sep 27.
Objective To investigate the impact of urethral catheterization on uroflow by comparing urodynamic parameters of free uroflowmetry versus pressure-flow study in adult patients with benign prostatic hyperplasia, female stress incontinence, lumbosacral spinal injury or spina bifida. Methods Each patient was required to perform pressure-flow study immediately following free uroflowmetry. Maximum flow rate (Q), average flow rate (Q), voided volume (VV), T (time to Q) and post-voiding residual urine (PVR) were compared between the two tests. Results Out of 120 patients, transurethral catheterization significantly impacted uroflow. In male patients with benign prostatic hyperplasia ( n = 50), Q, Q and T were significantly different between free uroflow and pressure-flow study. In patients with female stress incontinence ( n = 30), there were no statistically significant between-test differences in VV and T, but Q, Q and PVR were significantly different. In patients with spinal injury or spina bifida ( n = 40), Q, Q and VV were significantly different between free uroflow and pressure-flow study. Conclusion Urethral catheterization adversely impacts uroflow in patients with benign prostatic hyperplasia, female stress incontinence, spinal injury or spina bifida. Free uroflowmetry should be performed before pressure-flow study.
目的 通过比较成年良性前列腺增生、女性压力性尿失禁、腰骶部脊髓损伤或脊柱裂患者自由尿流率测定与压力 - 流率研究的尿动力学参数，探讨导尿对尿流的影响。方法 每位患者在自由尿流率测定后立即进行压力 - 流率研究。比较两项检查的最大尿流率（Q）、平均尿流率（Q）、排尿量（VV）、达峰时间（T）和残余尿量（PVR）。结果 在120例患者中，经尿道导尿对尿流有显著影响。在良性前列腺增生男性患者（n = 50）中，自由尿流率和压力 - 流率研究之间的Q、Q和T有显著差异。在女性压力性尿失禁患者（n = 30）中，VV和T的检查间差异无统计学意义，但Q、Q和PVR有显著差异。在脊髓损伤或脊柱裂患者（n = 40）中，自由尿流率和压力 - 流率研究之间的Q、Q和VV有显著差异。结论 导尿对良性前列腺增生、女性压力性尿失禁、脊髓损伤或脊柱裂患者的尿流有不利影响。应在压力 - 流率研究前进行自由尿流率测定。
