Cystometry in infants and children with no apparent voiding symptoms.
Cystometry in infants and children with no apparent voiding symptoms.
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对没有明显排尿症状的婴儿和儿童进行膀胱测压。
DOI：
10.1046/j.1464-410x.1998.00544.x
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
E. C. Tong
中科院分区：
文献类型：
--
作者：
J. Wen;E. C. Tong
客观化
目的评价无明显排尿症状的婴幼儿的膀胱功能。
研究对象和方法
这项研究包括83名婴儿和儿童(51名男孩和32名女孩，年龄在3天到12岁之间)，他们没有神经系统和下尿路病变，但已经或即将接受上尿路手术或其他病理。使用缓慢充盈膀胱测压技术进行评估，同时使用会阴表面电极记录肌电图。将排尿变量按年龄、性别和体重分组进行比较。
结果
男女生平均残余尿量(PVR)分别为6.3(3.9)和5.4(4.8)m L，最大尿压分别为66.1(13.1)和56.6(14.7)cmH2O，最大尿压分别为73.9(16.6)和62.7(16.2)cmH2O。这些变量在性别之间或婴幼儿之间没有显著差异(P>；0.05)。83例婴幼儿中有9例(10.8%)出现逼尿肌不稳定(DI)，且发生在充盈晚期。膀胱容量随着年龄和体重的增加而增加(从新生儿的30毫升增加到12岁儿童的350毫升)，平均顺应性(SD)随着年龄的增长而增加，以5-7毫升/分钟的充盈速度从婴儿的3.6(0.5)毫升/厘米水增加到年龄较大的儿童的13.3(3.0)毫升/厘米水。
结论
在这些无明显排尿症状的婴幼儿中，膀胱大部分稳定，DI可发生在充盈晚期，排尿接近完全，PVR通常为10毫升，膀胱容量随年龄和体重增加而增加。
OBJECTIVE
To evaluate bladder function in infants and children with no apparent voiding symptoms.
SUBJECTS AND METHODS
The study included 83 infants and children (51 boys and 32 girls, aged 3 days to 12 years) with no neurological and lower urinary tract pathology but who had undergone or were about to undergo surgery for upper urinary tract or other pathology. They were evaluated using slow-filling cystometry, with simultaneous electromyography recorded using surface electrodes on the perineum. The voiding variables were compared among groups categorized by age, sex and body weight.
RESULTS
In boys and girls, respectively, the mean (SD) post-void residual urine volume (PVR) was 6.3 (3.9) and 5.4 (4.8) mL, the maximum detrusor pressure during voiding was 66.1 (13.1) and 56.6 (14.7) cmH2O and the maximum voiding pressure was 73.9 (16.6) and 62.7 (16.2) cmH2O. There was no significant difference in these variables between the sexes or between infants and children (P > 0.05). Detrusor instability (DI) was apparent in nine of 83 (10.8%) infants and children and occurred in the late filling phase. Bladder capacity increased with age and body weight (from 30 mL in neonates to 350 mL in 12-year-old children), and mean (SD) bladder compliance increased with age, from 3.6 (0.5) mL/cmH2O in infants to 13.3 (3.0) mL/cmH2O in older children, at a filling rate of 5-7 mL/min.
CONCLUSIONS
In these infants and children with no apparent voiding symptoms, most bladders were stable, DI could occur in the late filling phase of cystometry, voiding was nearly complete, the PVR being usually < 10 mL, and bladder capacity increased with age and body weight.