Al-Saadi Wasan Ismail
Department of Radiology, Al-Nahrain College of Medicine, Al-Nahrain University, Kadhimiya, Baghdad, Iraq.
Arab J Urol. 2016 Mar;14(1):66-71. doi: 10.1016/j.aju.2015.11.003. Epub 2015 Dec 29.
To assess, using transperineal ultrasonography (TPUS), the numerical value of the rotation of the bladder neck [represented by the difference in the anterior (α angle) and posterior urethral angles (β angle)] at rest and straining, in continent women and women with stress urinary incontinence (SUI), to ascertain if there are significant differences in the angles of rotation (Rα and Rβ) between the groups.
In all, 30 women with SUI (SUI group) and 30 continent women (control group) were included. TPUS was performed at rest and straining (Valsalva manoeuver), and the threshold value for the urethral angles (α and β angles) for each group were estimated. The degree of rotation for each angle was calculated and was considered as the angle of rotation.
Both the α and β angles were significantly different between the groups at rest and straining, and there was a significant difference in the mean increment in the value of each angle. Higher values of increment (higher rotation angles) were reported in the SUI group for both the α and β angles compared with those of the control group [mean (SD) Rα SUI group 19.43 (12.76) vs controls 10.53 (2.98) °; Rβ SUI group 28.30 (12.96) vs controls 16.33 (10.8) °; P < 0.001].
Urethral rotation angles may assist in the assessment and diagnosis of patients with SUI, which may in turn reduce the need for more sophisticated urodynamic studies.
采用经会阴超声检查（TPUS）评估静息及用力状态下，尿失禁女性和压力性尿失禁（SUI）女性膀胱颈旋转数值[以前尿道角（α角）与后尿道角（β角）之差表示]，以确定两组之间旋转角度（Rα和Rβ）是否存在显著差异。
患者、受试者与方法：共纳入30例SUI女性（SUI组）和30例无尿失禁女性（对照组）。在静息及用力（Valsalva动作）状态下进行TPUS检查，并估算每组尿道角（α角和β角）的阈值。计算每个角度的旋转度数，并将其视为旋转角度。
两组在静息及用力状态下的α角和β角均存在显著差异，且每个角度数值的平均增加值也存在显著差异。与对照组相比，SUI组的α角和β角增加值均更高（旋转角度更大）[平均值（标准差）：SUI组Rα为19.43（12.76）°，对照组为10.53（2.98）°；SUI组Rβ为28.30（12.96）°，对照组为16.33（10.8）°；P<0.001]。
尿道旋转角度可能有助于SUI患者的评估和诊断，进而减少对更复杂尿动力学研究的需求。
