Eregie C O
Institute of Child Health, University of Benin, Nigeria.
East Afr Med J. 1998 Oct;75(10):576-8.
This study was conducted at the University Teaching Hospital, Benin City, Nigeria to investigate urinary frequency in exclusively breastfed neonates. Amongst exclusively breastfed neonates, 59.0% passed urine eight times or more per day while 14.5% passed urine less than five times a day. The comparative figures in partially breastfed neonates were 55.8% and 12.8% respectively. There was no significant association between the type of breastfeeding and urinary frequency. Sex was also not significantly associated with urinary frequency amongst exclusively breastfed infants. However, birthweight showed significant association with urinary frequency in the analysed sample. It is suggested that birthweight, which correlates with gestational maturity may influence urinary frequency because of its effect on renal functional maturation and possibly differential threshold for intravesical pressures required for initiating the micturition reflex. The observed association is, however, not an indication for supplementary water in low-birthweight infants since all the infants had normal hydration status. It is, therefore, recommended that all neonates should not receive supplementary water irrespective of their birthweights.
本研究在尼日利亚贝宁城大学教学医院开展，旨在调查纯母乳喂养新生儿的排尿频率。在纯母乳喂养的新生儿中，59.0%的新生儿每天排尿8次或更多，而14.5%的新生儿每天排尿少于5次。部分母乳喂养新生儿的相应比例分别为55.8%和12.8%。母乳喂养类型与排尿频率之间无显著关联。在纯母乳喂养婴儿中，性别与排尿频率也无显著关联。然而，在分析样本中，出生体重与排尿频率显示出显著关联。由于出生体重与胎龄成熟度相关，其可能会影响肾功能成熟以及启动排尿反射所需的膀胱内压差异阈值，进而可能影响排尿频率。不过，观察到的这种关联并不意味着低出生体重婴儿需要补充水分，因为所有婴儿的水合状态均正常。因此，建议无论新生儿出生体重如何，均不应补充水分。
