Child physical abuse is a common cause of pediatric morbidity and mortality. Up to half of all children presenting with abusive injuries have a history of a prior suspicious injury, suggesting a pattern of repeated physical abuse. Medical providers are responsible for identifying children with suspicious injuries, completing mandated reporting to child protective services for investigation, and screening for occult injuries and underlying medical conditions that can predispose to injuries. Early identification of inflicted injuries appropriate evaluations may serve as an opportunity for life-saving intervention and prevent further escalation of abuse. However, identification of abuse can be challenging. This article will review both physical exam findings and injuries that suggest abuse as well as the evaluation and management of physical abuse.

Child maltreatment is distressingly prevalent yet remains under-recognized by healthcare providers. In 2015 the Ohio Children\'s Hospital Association developed the Timely Recognition of Abusive INjuries (TRAIN) collaborative in an effort to promote child physical abuse (CPA) screening. Our institution implemented the TRAIN initiative in 2019. The objective of this study was to examine the effects of the TRAIN initiative at this institution.
In this retrospective chart review we recorded the incidence of sentinel injuries (SIS) in children presenting to the Emergency Department (ED) of an independent level 2 pediatric trauma center. SIS were defined and identified by a diagnosis of ecchymosis, contusion, fracture, head injury, intracranial hemorrhage, abdominal trauma, open wound, laceration, abrasion, oropharyngeal injury, genital injury, intoxication, or burn in a child < 6.01 months of age. Patients were stratified into pre-TRAIN (PRE), 1/2017-9/2018, or post-TRAIN (POST), 10/2019-7/2020, periods. Repeat injury was defined as a subsequent visit for any of the previously mentioned diagnoses within 12 months of the initial visit. Demographics/visit characteristics were analyzed using Chi square analysis, Fischer\'s exact test, and student\'s paired t-test.
In the PRE period, 12,812 ED visits were made by children < 6.01 months old; 2.8% of these visits were made by patients with SIS. In the POST period there were 5,372 ED visits, 2.6% involved SIS (p = .4). The rate of skeletal surveys performed on patients with SIS increased from 17.1% in the PRE period to 27.2% in the POST period (p = .01). The positivity rate of skeletal surveys in the PRE versus POST period was 18.9% and 26.3% respectively (p = .45). Repeat injury rates did not differ significantly in patients with SIS pre- versus post-TRAIN (p = .44).
Implementation of TRAIN at this institution appears to be associated with increased skeletal survey rates.

To determine whether in infants evaluated for physical abuse, medical encounters for infant distress are correlated with physical abuse or a history of sentinel injuries.
This retrospective, case-control analysis of infants aged <12 months evaluated for physical abuse identified demographic characteristics, prior injuries, and medical encounters for infant distress. Variables were compared between abused infants and nonabused infants with and without sentinel injuries. A nonparametric recursive classification tree analysis assessed interactions between variables.
Infant distress was associated with abuse (67.9% vs 44.7%; P = .008; OR, 2.6; 95% CI, 1.3-5.2). Infants with sentinel injuries had higher rates of infant distress (74.1% vs 42.4%; P ≤ .001) and crying (81.5% vs 62.7%; P = .012). Previous falls (32.6% vs 18.1%; P = .03) and nonsentinel injuries (18.2% vs 5.4%; P = .002) also were associated with abuse, although sentinel injuries were the most important predictor of abuse, followed by infant distress.
Infants with medical encounters for distress and injury may be at higher risk for abuse and may benefit from intensive educational and support services for their caregivers. Additional research evaluating the most effective interventions for caregivers of fussy infants is needed.

Bruising in an infant is an important sentinel injury that should raise concern for child physical abuse, and should prompt a medical evaluation for occult injury. Hyperflexion during forceful squeezing of an infant\'s hand results in a distinct pattern of bruising along the palmar and interdigital creases, as well as the palmar eminences. Self-inflicted injury by the infant or injury resulting from benign handling should not be accepted as plausible explanations for this injury. The presence of concurrent occult injuries is common, and further supports concerns for abuse. However, when this distinct pattern of palm bruising is identified in an infant, the absence of occult injuries should not prevent the recognition of child physical abuse.
We report 11 cases depicting this distinct pattern of palm bruising in infants. Additionally, we include a perpetrator\'s documented confession. To the best of our knowledge, this pattern of bruising has not been previously described in the medical literature. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Emergency physicians play a crucial role in recognizing and addressing child physical abuse. Prompt recognition of this finding can aid in the identification of child physical abuse, even in the absence of underlying occult injury. This, in turn, can potentially prevent further injury, and even death, of an infant.

To evaluate the association between cumulative visits for care of minor injuries and risk of traumatic brain injuries in children aged ≤36 months.
We conducted a retrospective analysis of children born from 2009 to 2012, using a health insurance claims database in Japan. We investigated the total number of visits where children aged 0-36 months presented for treatment of minor injuries such as superficial injuries, fractures, burns and foreign body ingestions. Logistic regression analysis was used to evaluate the association between the cumulative number of visits for treatment of minor injuries and traumatic brain injuries in children aged ≤36 months.
A total of 91 011 children were included in the analysis, 51% of whom were boys. Traumatic brain injuries were identified in 0.7% of these children. Cumulative visits for care of minor injuries among children aged 0-36 months were significantly associated with traumatic brain injuries by 36 months of age, with an odds ratio of 2.12 (95% confidence interval: 1.68-2.68) for multiple visits.
Cumulative visits for treatment of minor injuries during the first 36 months of life were associated with increased risk of traumatic brain injuries by 36 months of age.

Oral injuries in young children may indicate physical abuse. The prevalence of oral injuries in young children presenting to the emergency department is unknown. These data would assist providers in making decisions about the need for further abuse evaluation.
To determine the prevalence of oral injuries, associated chief complaints and characteristics, and frequency of abuse evaluations in children younger than 24 months presenting to a pediatric emergency department (PED).
Twelve pediatric emergency medicine physicians consecutively enrolled children younger than 24 months in a tertiary care PED.
We performed a prospective observational study. Enrolled patients underwent a complete oral examination. Providers recorded patient demographics, type of chief complaint, oral injury details, developmental ability, and the presence of an abuse evaluation.
Oral injuries occurred in 36/1303 (2.8%, 95% CI 1.9-3.8%) and were more common in patients with traumatic (26/200, 13%) versus medical chief complaints (10/1,103, 0.9%) (p < .001). Of patients with oral injuries (36), 78% were mobile and 72% had traumatic chief complaints. Nine (25%) children with oral injuries were evaluated for abuse. Oral injuries in children 0-11 months old were more likely to be evaluated for abuse than children 12-24 months old (70.0% vs. 7.7%, p < .001).
The prevalence of oral injuries in children <24 months old presenting to a PED was low. Most occurred in mobile children and in children with traumatic chief complaints. Younger, non-mobile children with oral injuries had a higher likelihood of having an abuse evaluation.

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Child maltreatment is a serious public health concern in the United States. Young infants and children younger than 3 years are at the highest risk of being abused and can experience both acute injuries and long-term developmental, behavioral, and mental health problems. Health care providers are mandated reporters of suspected abuse but may misdiagnose potentially abusive injuries because of lack of knowledge in recognizing maltreatment. Premobile infants rarely have bruising or intraoral injuries without a reported accident or underlying systemic disease and should raise concern for abuse. It is not uncommon for an abused child to present with an injury that at first glance may seem trivial but is actually suspicious for physical abuse and later be found to have abusive fractures or head trauma. The following case presentations show the importance of recognizing sentinel injuries and red flags for maltreatment in young, premobile infants with unexplained bruises.

Failure to recognize child maltreatment results in chronic exposure to high-risk environments where re-injury or death may occur. We analyzed a series (n=20) of fatal (n=10) and near-fatal (n=10) physical child abuse cases from the Commonwealth of Kentucky to identify commonalities and determine whether indicators of maltreatment were present prior to the child\'s fatal or near-fatal event. We conducted retrospective state record reviews involving children <4years of age classified as physical child abuse by the Cabinet for Health and Family Services during a 12 month period. Cases were distributed across 17 counties. IRB approvals were obtained. Three reviewers concurrently abstracted case data from medical, social, and legal documents, and descriptive statistics were analyzed. Median age of subjects was 7.5 months (range 1-32 months); 55% were male. Psychosocial risk factors (PRFs) were present in 100% of cases. Traumatic brain injury (95%) and bruising (90%) were the most common injuries. Of the 14 children with available prior medical records, 9 (64%) had sentinel injuries in the form of prior unexplained bruising; all nine suffered subsequent traumatic brain injury resulting in four deaths. A male was caring for the child at the time of the final event in 70% of cases. Our study identified key commonalities across cases of fatal and near-fatal abuse, highlighting the prevalence of psychosocial risk factors and the significance of prior unexplained bruising as a herald of escalating abuse. Further study is warranted to ascertain the predictive value of our findings in the larger population.