Prior Head Circumference Measurements in Infants With Older Subdural Hematomas: Did We Miss It?

Maryann Alvarez Griffis1,2, Nancy D Kellogg3, Wouter Koek3

  • 1CARE Team, Driscoll Children's Hospital, Corpus Christi, TX, USA.

Clinical Pediatrics
|December 8, 2025
PubMed

Insights

Missed opportunities in measuring infant head circumference and obtaining neuroimaging delayed diagnoses of subdural hematomas (SDHs). Earlier assessment for abusive head trauma (AHT) is crucial for timely interventions.

Area of Science:

  • Pediatrics
  • Neurology
  • Child Abuse Pediatrics

Background:

  • Macrocephaly due to subdural hematomas (SDHs) in infants is often detected through fronto-occipital circumference (FOC) measurements or neuroimaging.
  • Neurologic symptoms associated with SDH in infants can be subtle or overlooked, potentially delaying diagnosis.

Purpose of the Study:

  • To determine if infants diagnosed with macrocephaly and non-acute SDHs experienced missed opportunities for earlier detection.
  • To identify specific missed diagnostic steps, including FOC measurement and neuroimaging, prior to SDH diagnosis.

Main Methods:

  • A retrospective chart review was conducted on 35 infants with macrocephaly and non-acute SDHs.
  • Infants were referred for suspected abusive head trauma (AHT).
  • Medical records were analyzed for missed opportunities in workup for nonaccidental trauma (NAT), FOC measurement, neuroimaging, and macrocephaly assessment.

Main Results:

  • A high rate (91%) of missed diagnostic opportunities were identified in infants with macrocephaly and SDH.
  • The most frequent missed opportunity was the absence of neuroimaging in macrocephalic infants (54%).
  • Other missed opportunities included failure to measure FOC in symptomatic infants (19%), incomplete macrocephaly workup (17%), and lack of NAT workup despite sentinel injuries (9%).

Conclusions:

  • Routine FOC measurement and review, particularly in infants with nonspecific symptoms or sentinel injuries, can aid early AHT detection.
  • Earlier diagnosis of AHT is essential for implementing timely safety measures and treatment interventions.
Abstract

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