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Birth-related subdural hemorrhage: prevalence and imaging morphology

  • Child abuse imaging
  • Published:
Pediatric Radiology Aims and scope Submit manuscript

Abstract

Background

Birth trauma accounts for 1–2% of the mortality in newborns with significant intracranial injuries presenting in the immediate postnatal period. However, a significant number of asymptomatic neonates harbor birth-related intracranial hemorrhage (ICH), with birth-related subdural hemorrhage (SDH) being a common occurrence on infant brain CT and MRI studies performed as a standard of care for a variety of reasons. Although clinically insignificant, birth-related SDH is frequently brought up in courts as an alternative explanation for SDH in suspected abusive head trauma.

Objective

The aim of this study was to determine prevalence, imaging morphology and distribution of birth-related SDHs on brain CT and MRI studies obtained as a standard of care in infants up to 1 month old. We further tried to ascertain the relationship of birth-related SDHs with mode of delivery and birth weight.

Materials and methods

Infants up to the age of 1 month who had CT or MRI of the brain performed between Jan. 1, 2018, and March 29, 2020, were included in this retrospective observational study. In addition to the imaging data, we reviewed clinical history, birth history including birth weight and mode of delivery, and final diagnoses.

Results

Two hundred six infants younger than 30 days (range 0–29 days, mean 11.9 days, median 11 days and standard deviation [SD] 8.4 days) had a CT or MRI study during the study period. Among these, 58 infants were excluded as per the exclusion criteria. Among the included 148 infants, 88 (59.5%) had no imaging evidence of SDH. An additional 56 (37.8%) infants were assessed as having birth-related SDH based on review of clinical data. Within the birth-related SDH cohort (56 infants), only supratentorial SDH was identified in 5 (8.9%), only infratentorial SDH was identified in 14 (25%), while SDHs within both compartments were identified in 37 (66.1%) infants. The most common location for supratentorial birth-related SDH was along the occipital lobes (31/42, 73.8%), with other common locations being along the posterior interhemispheric fissure (30/42, 71.4%) and fronto-parietal convexity (9/42, 21.4%). The distribution of posterior fossa SDH was along the tentorium (38/51, 74.5%), along the cerebellum (38/51, 74.5%) and in both the locations (25/51, 49.0%). The rate of SDH was significantly higher in vaginal delivery group (46/84, 54.7%) as compared to caesarean section group (10/57, 17.5%) (P<0.05). We did not find any statistically significant difference between the birth weights of normal and birth-related SDH cohorts (P>0.05).

Conclusion

Birth-related SDH is a common occurrence, with our study suggesting a prevalence of 37.8%. The most common distribution of birth-related SDH is within both the supra- and infratentorial compartments (66.1%) followed by infratentorial compartment (25%). The rate of birth-related SDH was significantly higher in vaginal delivery group as compared to caesarean section group.

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Acknowledgments

The authors would like to thank Ms. Chetana Kamble, MS, MBA, for her help with data analysis and representation.

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Authors and Affiliations

  1. Department of Medical Imaging, Nemours/Alfred I. duPont Hospital for Children, 1600 Rockland Road, Wilmington, DE, 19803, USA

    Rahul M. Nikam, Vinay V. Kandula, Vijay Krishnan & Lauren W. Averill

  2. Katzin Diagnostic & Research PET/MR Center, Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, USA

    Xuyi Yue & Bishnuhari Paudyal

  3. Department of Radiology, Medical College of Wisconsin, Milwaukee, WI, USA

    Sachin S. Kumbhar

  4. Department of Radiology, University of Arkansas for Medical Sciences (UAMS), Little Rock, AR, USA

    Arabinda K. Choudhary

Authors
  1. Rahul M. Nikam
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  2. Vinay V. Kandula
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  3. Xuyi Yue
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  4. Vijay Krishnan
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  5. Sachin S. Kumbhar
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  6. Lauren W. Averill
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  7. Bishnuhari Paudyal
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  8. Arabinda K. Choudhary
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Correspondence to Rahul M. Nikam.

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Nikam, R.M., Kandula, V.V., Yue, X. et al. Birth-related subdural hemorrhage: prevalence and imaging morphology. Pediatr Radiol 51, 939–946 (2021). https://doi.org/10.1007/s00247-021-05060-5

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  • DOI: https://doi.org/10.1007/s00247-021-05060-5

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