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12h daytime observation of voiding pattern in newborns less than 4 weeks of age.
MedLine Citation:
PMID:  22226238     Owner:  NLM     Status:  Publisher    
Aim:  To investigate the voiding pattern in < 4 week old newborns by 12h daytime observation periods. Methods:  Twenty-one healthy 1-28 d old newborns were included (10 full-term, 11 pre-term). The 12h free voiding parameters, including voiding frequency (VF), voiding volume (VV), post-voiding residual volumes (PRV) and status at voiding (awake/sleep) were recorded at day 1, 4, 7, 14 and 28 after birth. Results:  Voiding was recorded 778 times. VF increased in the full-term and pre-term newborns between day 4 and 7, decreased in pre-terms between day 14 and 28 but remained higher than in the full-terms. VV increased twice in full-terms and once in pre-terms during 28 days and PRV fluctuated. In contrast, VV was higher in the full-term than the pre-terms at days 4, 7, 14, and 28. PRV was higher at days 4 and 28. Interrupted voiding was less frequent in the full- than pre-terms. Conclusion:  Voiding pattern in the pre-terms differed in many ways from that of the full-term newborns. Frequent interrupted and incomplete voiding pattern in the preterm newborns indicates a disrupted coordination of the detrusor-sphincter and a delayed maturation of the neural micturition center.
Yan Chen; Jian Guo Wen; Yan Li; Yi Dong Li; Zhen Zhen Li; Yrjö T Konttinen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-7
Journal Detail:
Title:  Acta paediatrica (Oslo, Norway : 1992)     Volume:  -     ISSN:  1651-2227     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205968     Medline TA:  Acta Paediatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Acta Paediatrica © 2012 Foundation Acta Paediatrica.
Pediatric Urodynamic Center, Department of Urology, Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, China, Post code 450052 Department of Medicine/ Invärtes medicin, Helsinki University Central Hospital, ORTON Orthopaedic Hospital, Helsinki, Finland, Post Code 00029.
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