For children <3 years of age, head injury depth is a useful indicator of injury causes and mechanisms.

Investigation for bleeding disorders in the context of suspected non-accidental injury (NAI) is inconsistent. We reviewed the hematologic evaluation of children who presented with symptoms of bleeding and/or bruising suspicious for NAI to determine the frequency of hematologic tests, abnormal hematologic laboratory results, and hematologic diagnoses. A retrospective cohort study design was employed at two freestanding academic children’s hospitals. ICD-9 codes for NAI were used to identify 427 evaluable patients. Medical records were queried for the details of clinical and laboratory evaluations at the initial presentation concerning for NAI. The median age for the population was 326 days (range 1 day–14 years), 58% were male. Primary bleeding symptoms included intracranial hemorrhage (31.8%) and bruising (68.2%). Hematologic laboratory tests performed included complete blood cell count in 62.3%, prothrombin time (PT) in 55.0%, and activated partial thromboplastin time (aPTT) in 53.6%; fibrinogen in 27.6%; factor activity in 17.1%; von Willebrand disease evaluation in 14.5%; and platelet function analyzer in 11.7%. Prolonged laboratory values were seen in 22.5% of PT and 17.4% of aPTT assays; 66.0% of abnormal PTs and 87.5% of abnormal aPTTs were repeated. In our cohort, 0.7% (3 of 427) of the population was diagnosed with a condition predisposing to bleeding. In children with bleeding symptoms concerning for NAI, hemostatic evaluation is inconsistent. Abnormal tests are not routinely repeated, and investigation for the most common bleeding disorder, von Willebrand disease, is rare. Further research into the extent and appropriate timing of the evaluation is warranted.

Approximately one fourths of infant fractures are due to abuse. Recognition of abuse is important to avoid further morbidity/mortality. There is limited knowledge regarding how frequently pediatric emergency department clinicians consider abuse in infants with fractures. Our primary objective was to estimate the percentage of infants with fractures for whom abuse was considered, and to examine characteristics associated with abuse consideration. We performed a retrospective review of infants <1 year of age presenting to a pediatric emergency department. Our primary outcome variable was consideration of abuse. Our secondary outcome measures were identification of predictor variables associated with consideration of abuse. We identified 509 infants meeting study criteria. Pediatric emergency physicians considered abuse in approximately two thirds of infants with fractures. Consideration was more likely to occur in younger infants, in the presence of no history or unwitnessed injury mechanism, when evaluated by male physicians, and emergency department encounters from 12 am to 6 am.

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