Document Detail

Prevalence and evolution of intracranial hemorrhage in asymptomatic term infants.
MedLine Citation:
PMID:  18388219     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND PURPOSE: Subdural hemorrhage (SDH) is often associated with infants experiencing nonaccidental injury (NAI). A study of the appearance and natural evolution of these birth-related hemorrhages, particularly SDH, is important in the forensic evaluation of NAI. The purpose of this study was to determine the normal incidence, size, distribution, and natural history of SDH in asymptomatic term neonates as detected by sonography (US) and MR imaging within 72 hours of birth. MATERIALS AND METHODS: Birth history, delivery method, duration of each stage of labor, pharmaceutic augmentation, and complications during delivery as well as postnatal physical examination were recorded. Brain MR imaging and US were performed on 101 asymptomatic term infants at 3-7 days, 2 weeks, 1 month, and 3 months. Clinical follow-up at 24 months was recorded. RESULTS: Forty-six neonates had SDH by MR imaging within 72 hours of delivery. SDH was seen in both vaginal and cesarean deliveries. All neonates were asymptomatic, with normal findings on physical examination. All 46 had supratentorial SDH seen in the posterior cranium. Twenty (43%) also had infratentorial SDH. US detected 11 of the 20 (55%) infratentorial SDHs and no supratentorial SDH. Most SDHs present at birth were <or=3 mm and had resolved by 1 month, and all resolved by 3 months on MR imaging. Most children with SDHs had normal findings on developmental examinations at 24 months. CONCLUSION: SDH in asymptomatic term neonates after delivery is limited in size and location.
V J Rooks; J P Eaton; L Ruess; G W Petermann; J Keck-Wherley; R C Pedersen
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Publication Detail:
Type:  Journal Article     Date:  2008-04-03
Journal Detail:
Title:  AJNR. American journal of neuroradiology     Volume:  29     ISSN:  1936-959X     ISO Abbreviation:  AJNR Am J Neuroradiol     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-06-11     Completed Date:  2008-07-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003708     Medline TA:  AJNR Am J Neuroradiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1082-9     Citation Subset:  IM    
Department of Radiology, Tripler Army Medical Center, Honolulu, HI 96859-5000, USA.
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MeSH Terms
Brain / pathology,  radiography
Echoencephalography / statistics & numerical data*
Hawaii / epidemiology
Infant, Newborn
Intracranial Hemorrhage, Hypertensive / congenital,  diagnosis*,  epidemiology*
Magnetic Resonance Imaging / methods*
Risk Assessment / methods*
Risk Factors

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