Acosta Jorge, López Eloy, Olvera Gloria I, Ortega Rosa
Departamento de Urología Pediátrica, Hospital Civil de Guadalajara Dr. Juan I. Menchaca, Guadalajara, Jalisco, México.
Departamento de Radiología, Hospital Civil de Guadalajara Dr. Juan I. Menchaca, Guadalajara, Jalisco, México.
Rev Chil Pediatr. 2017;88(5):608-613. doi: 10.4067/S0370-41062017000500006.
Nocturnal enuresis is a common clinical problem affecting 5% to 10% of school-age children. Etiology is not known but a diminished functional bladder capacity it has been proposed as a predisposing factor. There exist only a few studies evaluating it by ultrasound.
To identify if there is a difference of the functional bladder capacity measured by ultrasound between nocturnal enuresis group and healthy children.
A cross-sectional study from February 2014 to May 2015 including two groups, nocturnal enuresis and a control group of 40 patients each, 5 to 15 years old. A single blinded operator measured the functional bladder capacity by ultrasound with an Acuson S2000 SiemensTM 3.5 and 5 MHz transducer. Analytics and descriptive statistics were performed using IBM SPSS 20TM software.
Patients with enuresis showed a decreased functional bladder capacity vs. controls (171.7 ml vs 225.5 ml; p = 0.025). A history of first-degree relative with enuresis increased the risk of having enuresis OR = 2.81 (95% CI: 1.06-7.42), a second-degree relative presented OR = 4.0 (95% CI: 1.48-10.78). Functional bladder capacity presented a weak correlation with the bladder capacity estimated by Kaefers formula.
The functional bladder capacity is lower in the patients with nocturnal enuresis when compared to control group. There is little correlation between functional bladder capacity and Kaefers formula to determine the normal bladder capacity. We reaffirmed that the family history with enuresis strongly increases the risk of developing nocturnal enuresis.
夜间遗尿是一个常见的临床问题，影响5%至10%的学龄儿童。病因尚不清楚，但有人提出功能性膀胱容量减小是一个诱发因素。仅有少数研究通过超声对其进行评估。
确定夜间遗尿组与健康儿童通过超声测量的功能性膀胱容量是否存在差异。
2014年2月至2015年5月的一项横断面研究，包括两组，每组40例患者，年龄在5至15岁，分别为夜间遗尿组和对照组。由一名单盲操作人员使用西门子Acuson S2000型超声仪，配备3.5和5兆赫探头，测量功能性膀胱容量。使用IBM SPSS 20TM软件进行分析和描述性统计。
遗尿患者的功能性膀胱容量低于对照组（171.7毫升对225.5毫升；p = 0.025）。有一级亲属遗尿史会增加患遗尿症的风险，比值比（OR）= 2.81（95%置信区间：1.06 - 7.42），二级亲属患遗尿症的比值比（OR）= 4.0（95%置信区间：1.48 - 10.78）。功能性膀胱容量与通过凯弗公式估算的膀胱容量呈弱相关性。
与对照组相比，夜间遗尿患者的功能性膀胱容量较低。功能性膀胱容量与凯弗公式用于确定正常膀胱容量之间几乎没有相关性。我们再次证实，有遗尿症家族史会显著增加患夜间遗尿症的风险。
