目的:利用磁共振排粪造影(MRD)分析压力性尿失禁(SUI)伴盆腔器官脱垂(POP)患者的原发性盆底功能障碍,以及无症状POP的SUI患者。
方法:我们在SUI和POP受试者中进行了MRD。作为主要分析,比较孤立POP组和POP联合SUI组的功能MR参数。作为次要分析,比较POP联合SUI和SUI合并无症状POP(孤立SUI)组的功能MR数据.
结果:MRD注意到SUI合并中度或重度POP的主要特征,包括较短的闭合尿道长度(1.87厘米vs.2.50厘米,p<0.001),更普遍的尿道过度活动(112.31°vs.85.67°,p=0.003),膀胱颈漏斗(48.28%vs.20.51%,p=0.020),膀胱尿道交界处下部位置(2.11cmvs.1.67厘米,p=0.030),和更严重的膀胱后壁脱垂(6.26cmvs.4.35cm,p=0.008)。孤立的SUI患者显示出闭合尿道的最短长度(1.56cmvs.1.87厘米,p=0.029),较大的膀胱尿道角度(153.80°vs.107.58°,p<0.001),更积极的膀胱漏斗(84.85%vs.48.28%,p=0.002)和特殊的尿道开放标志(45.45%vs.3.45%,p<0.001)。
结论:伴有POP的SUI患者主要表现为尿道过度活动和尿道闭合缩短。无症状POP的SUI患者主要表现为尿道和膀胱颈功能障碍,其特征在于尿道和膀胱颈的开口和缩短的尿道闭合。
OBJECTIVE: Utilize magnetic resonance defecography (MRD) to analyze the primary pelvic floor dysfunctions in patients with stress urinary incontinence (SUI) associated with pelvic organ prolapse (POP), and in SUI patients with asymptomatic POP.
METHODS: We performed MRD in both SUI and POP subjects. As a primary analysis, the functional MR parameters were compared between the isolated POP and POP combined SUI groups. As a secondary analysis, the functional MR data were compared between the POP combined SUI and the SUI with asymptomatic POP (isolated SUI) groups.
RESULTS: MRD noted the main characteristics of SUI combined moderate or severe POP, including the shorter closed urethra length (1.87 cm vs. 2.50 cm, p < 0.001), more prevalent urethral hypermobility (112.31° vs. 85.67°, p = 0.003), bladder neck funneling (48.28% vs. 20.51%, p = 0.020), lower position of vesicourethral junction (2.11 cm vs. 1.67 cm, p = 0.030), and more severe prolapse of the posterior bladder wall (6.26 cm vs. 4.35 cm, p = 0.008). The isolated SUI patients showed the shortest length of the closed urethra (1.56 cm vs. 1.87 cm, p = 0.029), a larger vesicourethral angle (153.80° vs. 107.58°, p < 0.001), the more positive bladder funneling (84.85% vs. 48.28%, p = 0.002) and a special urethral opening sign (45.45% vs. 3.45%, p < 0.001).
CONCLUSIONS: Patients with SUI accompanying POP primarily exhibit excessive urethral mobility and a shortened urethral closure. SUI patients with asymptomatic POP mainly show dysfunction of the urethra and bladder neck, characterized by the opening of the urethra and bladder neck and a shortened urethral closure.