Sillén Ulla, Hjälmås Kelm
Pediatric Uro-Nephrological Centre, The Queen Silvia Children's Hospital, Göteborg, Sweden.
Scand J Urol Nephrol Suppl. 2004(215):63-8. doi: 10.1080/03008880410015318.
The purpose with the present review was to characterise bladder function in healthy preterm and full-term infants from findings in studies using the four-hour voiding observation. Characteristics of the free voiding pattern were very similar in preterm and full-term infants. The frequency of voidings was once an hour, bladder volume inducing voiding varied, infants often woke up before voiding and the bladder was not completely emptied at every voiding. Furthermore, interrupted voidings interpreted as a detrusor-sphincter dyscoordination, were seen and were clearly an immature phenomenon since the frequency was high in the preterm infants and then decreased. Concluding these findings the voiding pattern seems to be immature early in life and there is distinct evidence for a connection to the CNS already in the preterm infant.
本综述的目的是通过使用四小时排尿观察的研究结果来描述健康早产儿和足月儿的膀胱功能。早产儿和足月儿的自由排尿模式特征非常相似。排尿频率为每小时一次，引起排尿的膀胱容量各不相同，婴儿常在排尿前醒来，且每次排尿时膀胱并未完全排空。此外，还观察到被解释为逼尿肌-括约肌失调的间断排尿，这显然是一种不成熟的现象，因为其在早产儿中频率较高，随后降低。综合这些发现，排尿模式在生命早期似乎是不成熟的，并且有明确证据表明在早产儿中就已经与中枢神经系统存在联系。
