尿动力检测中尿道测压管对尿流率的影响

Impact of intra-urethral catheter on uroflow rate in urodynamic test

摘要:

目的 探讨前列腺增生（BPH）患者尿道内置F8 测压管在压力- 流率测定中对尿流率的影响。方法 对54 例良性BPH 患者行压力- 流率测定，尿道内放置F8 测压导管，比较尿流率和置管后尿流率的变化。结果 54 例患者置管前后最大尿流率、平均尿流率比较，经t 检验，差异有统计学意义（P <0.05）。置管前后尿流量比较，经t 检验，差异无统计学意义（P >0.05）。膀胱出口梗阻Ⅱ～Ⅳ级患者的最大尿流率与最大置管尿流率比较，差异有统计学意义（P <0.05），0、Ⅰ级和Ⅴ、Ⅵ级的最大尿流率、最大置管尿流率比较，差异无统计学意义（P >0.05）。结论 BPH 患者尿道内置F8 测压导管影响尿流率测定值。

Abstract:

Abstract: Objective To study the impact of intra-urethral catheter on uroflow rate in pressure-flow study. Methods Fifty-four men with benign prostate hyperplasia (BPH) underwent free uroflometry and pressureflow analysis respectively. With an F8 urethral catheter, the standard pressure-flow variables such as the maximum flow and catheter’s uroflow rate were measured and analyzed with paired t test. Results The maximum free uroflow rate and the mean free uroflow rate were significantly different before and after catheterization (P < 0.05). The maximum voided volume in free uroflometry and in pressure-flow study was not statistically different (P > 0.05). There were significant differences in the maximum uroflow rate and the maximum catheter’s uroflow rate among the patients with bladder outlet obstruction of grade II-IV (P < 0.05), but there were no significant differences among the patients with bladder outlet obstruction of grade 0, I, V and VI (P > 0.05). Conclusions F8 urethral catheter appears to have significant impact on uroflow rate.