Shaken baby syndrome without intracranial hemorrhage on initial computed tomography

Correlations of intracranial pathology and cause of head injury with retinal hemorrhage in infants and toddlers: A multicenter, retrospective study by the J-HITs (Japanese Head injury of Infants and Toddlers study) group

INTRODUCTION

In infants who have suffered head trauma there are two possible explanations for retinal hemorrhage (RH): direct vitreous shaking and occurrence in association with intracranial lesions. Which possibility is more plausible was examined.

MATERIAL AND METHODS

This multicenter, retrospective study reviewed the clinical records of children younger than four years with head trauma who had been diagnosed with any findings on head computed tomography (CT) and/or magnetic resonance imaging (MRI). Of 452 cases, 239 underwent an ophthalmological examination and were included in this study. The relationships of RH with intracranial findings and the cause of injury were examined.

RESULT

Odds ratios for RH were significant for subdural hematoma (OR 23.41, p = 0.0004), brain edema (OR 5.46, p = 0.0095), nonaccidental (OR 11.26, p<0.0001), and self-inflicted falls (OR 6.22, p = 0.0041).

CONCLUSION

Although nonaccidental, brain edema and self-inflicted falls were associated with RH, subdural hematoma was most strongly associated with RH.

The neural correlates of paternal consoling behavior and frustration in response to infant crying

Human fathers often form strong attachments to their infants that contribute to positive developmental outcomes. However, fathers are also the most common perpetrators of infant abuse, and infant crying is a known trigger. Research on parental brain responses to infant crying have typically employed passive listening paradigms. However, parents usually engage with crying infants. Therefore, we examined the neural responses of 20 new fathers to infant cries both while passively listening, and while actively attempting to console the infant by selecting soothing strategies in a video game format. Compared with passive listening, active responding robustly activated brain regions involved in movement, empathy and approach motivation, and deactivated regions involved in stress and anxiety. Fathers reporting more frustration had less activation in basal forebrain areas and in brain areas involved with emotion regulation (e.g., prefrontal cortex and the supplementary motor area). Successful consolation of infant crying activated regions involved in both action-outcome learning and parental caregiving (anterior and posterior cingulate cortex). Overall, results suggest that active responding to infant cries amplifies activation in many brain areas typically activated during passive listening. Additionally, paternal frustration during active responding may involve a combination of low approach motivation and low engagement of emotion regulation.

What Do Confessions Reveal About Abusive Head Trauma? A Systematic Review

Although confessions related to abusive head trauma (AHT) are reported, no detailed analysis exists. Therefore, we systematically reviewed studies of AHT confessions and examined the details, including country of origin, mechanisms and perpetrators' characteristics [PUBLISHER - THE PRECEDING UNDERLINED TEXT IS FOR THE MARGIN]. Employing 36 search terms across three search engines, we searched Medline and CINAHL from 1963 to 2018. All relevant studies underwent two independent reviews and data extraction. Descriptive statistics were used to characterise the sample; chi square and Fisher's exact tests were used to assess differences in demographic and clinical characteristics. Of 6759 identified studies, 157 full texts were reviewed and 55 articles from 15 countries spanning four continents were included. Included articles contained 434 confessions. The mechanisms of abuse included shaking alone (64.1%), impact alone (17.1%), shaking plus impact (18.0%) and other (0.9%). There was no statistically significant difference in the percentage of confessions reporting shaking alone when comparing continents: North America (64.0%), Europe (64.2%) and Oceania (60.0%; P=.92), or when comparing circumstances in which the confession was obtained: medical evaluation (74.6%) vs police or judicial investigations (63.4%; P=.11). Of 119 cases with identified perpetrators, 67.2 per cent were cases with males alone. Confessions reveal striking similarities in the mechanism of AHT (predominantly shaking) and occur across the globe.

The Eye Examination in the Evaluation of Child Abuse

Child abuse can cause injury to any part of the eye. The most common manifestations are retinal hemorrhages (RHs) in infants and young children with abusive head trauma (AHT). Although RHs are an important indicator of possible AHT, they are also found in other conditions. Distinguishing the number, type, location, and pattern of RHs is important in evaluating a differential diagnosis. Eye trauma can be seen in cases of physical abuse or AHT and may prompt referral for ophthalmologic assessment. Physicians have a responsibility to consider abuse in the differential diagnosis of pediatric eye trauma. Identification and documentation of inflicted ocular trauma requires a thorough examination by an ophthalmologist, including indirect ophthalmoscopy, most optimally through a dilated pupil, especially for the evaluation of possible RHs. An eye examination is helpful in detecting abnormalities that can help identify a medical or traumatic etiology for previously well young children who experience unexpected and unexplained mental status changes with no obvious cause, children with head trauma that results in significant intracranial hemorrhage and brain injury, and children with unexplained death.

Children and youth with 'unspecified injury to the head': implications for traumatic brain injury research and surveillance

Background

The case definition for traumatic brain injury (TBI) often includes ‘unspecified injury to the head’ diagnostic codes. However, research has shown that the inclusion of these codes leads to false positives. As such, it is important to determine the degree to which inclusion of these codes affect the overall numbers and profiles of the TBI population. The objective of this paper was to profile and compare the demographic and clinical characteristics, intention and mechanism of injury, and discharge disposition of hospitalized children and youth aged 19 years and under using (1) an inclusive TBI case definition that included ‘unspecified injury to the head’ diagnostic codes, (2) a restricted TBI case definition that excluded ‘unspecified injury to the head ‘diagnostic codes, and (3) the ‘unspecified injury to the head’ only case definition.

Methods

The National Ambulatory Care Reporting System and the Discharge Abstract Database from Ontario, Canada, were used to identify cases between fiscal years 2003/04 and 2009/10.

Results

The rate of TBI episodes of care using the inclusive case definition for TBI (2,667.2 per 100,000) was 1.65 times higher than that of the restricted case definition (1,613.3 per 100,000). ‘Unspecified injury to the head’ diagnostic codes made up of 39.5 % of all cases identified with the inclusive case definition. Exclusion of ‘unspecified injury to the head’ diagnostic code in the TBI case definition resulted in a significantly higher proportion of patients in the intensive care units (p < .0001; 18.5 % vs. 22.2 %) and discharged to a non-home setting (p < .0001; 9.9 % vs. 11.6 %).

Conclusion

Inclusion of ‘unspecified injury to the head’ diagnostic codes resulted in significant changes in numbers, healthcare use, and causes of TBI. Careful consideration of the inclusion of ‘unspecified injury to the head’ diagnostic codes in the case definition of TBI for the children and youth population is important, as it has implications for the numbers used for policy, resource allocation, prevention, and planning of healthcare services. This paper can inform future work on reaching consensus on the diagnostic codes for defining TBI in children and youth.

Defining pediatric traumatic brain injury using International Classification of Diseases Version 10 Codes: a systematic review

BACKGROUND

Although healthcare administrative data are commonly used for traumatic brain injury (TBI) research, there is currently no consensus or consistency on the International Classification of Diseases Version 10 (ICD-10) codes used to define TBI among children and youth internationally. This study systematically reviewed the literature to explore the range of ICD-10 codes that are used to define TBI in this population. The identification of the range of ICD-10 codes to define this population in administrative data is crucial, as it has implications for policy, resource allocation, planning of healthcare services, and prevention strategies.

METHODS

The databases MEDLINE, MEDLINE In-Process, Embase, PsychINFO, CINAHL, SPORTDiscus, and Cochrane Database of Systematic Reviews were systematically searched. Grey literature was searched using Grey Matters and Google. Reference lists of included articles were also searched for relevant studies. Two reviewers independently screened all titles and abstracts using pre-defined inclusion and exclusion criteria. A full text screen was conducted on articles that met the first screen inclusion criteria. All full text articles that met the pre-defined inclusion criteria were included for analysis in this systematic review.

RESULTS

A total of 1,326 publications were identified through the predetermined search strategy and 32 articles/reports met all eligibility criteria for inclusion in this review. Five articles specifically examined children and youth aged 19 years or under with TBI. ICD-10 case definitions ranged from the broad injuries to the head codes (ICD-10 S00 to S09) to concussion only (S06.0). There was overwhelming consensus on the inclusion of ICD-10 code S06, intracranial injury, while codes S00 (superficial injury of the head), S03 (dislocation, sprain, and strain of joints and ligaments of head), and S05 (injury of eye and orbit) were only used by articles that examined head injury, none of which specifically examined children and youth.

CONCLUSION

This review provides evidence for discussion on how best to use ICD codes for different goals. This is an important first step in reaching an appropriate definition and can inform future work on reaching consensus on the ICD-10 codes to define TBI for this vulnerable population.

Defining traumatic brain injury in children and youth using international classification of diseases version 10 codes: a systematic review protocol

BACKGROUND

Although healthcare administrative data are commonly used for traumatic brain injury research, there is currently no consensus or consistency on using the International Classification of Diseases version 10 codes to define traumatic brain injury among children and youth. This protocol is for a systematic review of the literature to explore the range of International Classification of Diseases version 10 codes that are used to define traumatic brain injury in this population.

METHODS/DESIGN

The databases MEDLINE, MEDLINE In-Process, Embase, PsychINFO, CINAHL, SPORTDiscus, and Cochrane Database of Systematic Reviews will be systematically searched. Grey literature will be searched using Grey Matters and Google. Reference lists of included articles will also be searched. Articles will be screened using predefined inclusion and exclusion criteria and all full-text articles that meet the predefined inclusion criteria will be included for analysis. The study selection process and reasons for exclusion at the full-text level will be presented using a PRISMA study flow diagram. Information on the data source of included studies, year and location of study, age of study population, range of incidence, and study purpose will be abstracted into a separate table and synthesized for analysis. All International Classification of Diseases version 10 codes will be listed in tables and the codes that are used to define concussion, acquired traumatic brain injury, head injury, or head trauma will be identified.

DISCUSSION

The identification of the optimal International Classification of Diseases version 10 codes to define this population in administrative data is crucial, as it has implications for policy, resource allocation, planning of healthcare services, and prevention strategies. It also allows for comparisons across countries and studies. This protocol is for a review that identifies the range and most common diagnoses used to conduct surveillance for traumatic brain injury in children and youth. This is an important first step in reaching an appropriate definition using International Classification of Diseases version 10 codes and can inform future work on reaching consensus on the codes to define traumatic brain injury for this vulnerable population.

Incidence of retinal hemorrhages in abusive head trauma

PURPOSE

To evaluate whether a relationship exists between the presence of retinal hemorrhages and confessions and/or identified perpetrators in cases of abusive head trauma.

METHODS

A retrospective chart review was conducted of all abusive head trauma cases. All cases that met criteria for abusive head trauma were placed into one of three categories: perpetrator confessed (category A), perpetrator identified without confession (category B), and no perpetrator identified (category C).

RESULTS

Forty-eight cases met the criteria for abusive head trauma, with 18, 16, and 14 cases in categories A, B, and C, respectively. Retinal hemorrhages were identified in 16 of 18 (88%) cases in category A, 12 of 16 (75%) in category B, and 6 of 14 (43%) in category C. A statistically significant difference regarding the presence of retinal hemorrhages was seen for perpetrator identified (28 of 34 or 82%) compared to no perpetrator identified (6 of 14 or 43%) (P = .034). The difference in retinal hemorrhages was correlated to the higher incidence of acute presentation in the perpetrator identified group (31 of 34 or 91%) compared to that in the perpetrator not identified group (9 of 14 or 64%) (P = .023).

CONCLUSION

The incidence of retinal hemorrhages in abusive head trauma for identified perpetrators, regardless of a confession, is similar. However, there is a statistically significant decrease in the incidence of retinal hemorrhages in abusive head trauma when comparing identified perpetrators to non-identified perpetrators. This decreased incidence of retinal hemorrhages was statistically correlated to a lower incidence of acute presentation in victims of abusive head trauma without an identified perpetrator.[J Pediatr Ophthalmol Strabismus 2013;50(3):169-172.].

Clinical predictors of outcome following inflicted traumatic brain injury in children

BACKGROUND

The study aimed to determine which acute injury variables were predictors of long-term functional outcome following inflicted traumatic brain injury (iTBI).

METHODS

A retrospective case review of 35 children with iTBI was performed. After controlling for age at injury and time since injury, the generalized estimation equations method was used to identify acute injury variables that were significantly related to the Glasgow Outcome Scale scores at the initial follow-up assessments. When available, functional sequelae at these and longer-term follow-ups were also examined.

RESULTS

In bivariate generalized estimation equations analyses, a low Glasgow Coma Scale (GCS) eye component score, a low GCS motor component score, a low GCS verbal component score, need for neurosurgical intervention, seizures in the first week after injury, need for mechanical ventilation for more than 10 days, length of intensive care unit stay of more than 10 days, initial hyperglycemia, and neuroimaging findings of cerebral edema or loss of gray-white matter differentiation were significantly (p ≤ 0.05) related to having a poor outcome, as defined by their Glasgow Outcome Scale score at the initial follow-up. In multivariable analyses, considering the significant predictors while controlling for age at injury and time since injury, the presence of cerebral edema on neuroimaging (odds ratio, 27.21; 95% confidence interval, 4.40-168.22), and length of intensive care unit stay of more than 10 days (odds ratio, 21.57; 95% confidence interval, 3.09-150.48) were significantly related to having a poor outcome.

CONCLUSION

Early clinical data following iTBI help predict long-term functional outcome. Further research to support these findings may help delineate acutely after injury which children with iTBI are at risk for a poor prognosis and should be more closely followed up over time.

LEVEL OF EVIDENCE

Prognostic study, level IV.

Retinal hemorrhage in abusive head trauma

Retinal hemorrhage is a cardinal manifestation of abusive head trauma. Over the 30 years since the recognition of this association, multiple streams of research, including clinical, postmortem, animal, mechanical, and finite element studies, have created a robust understanding of the clinical features, diagnostic importance, differential diagnosis, and pathophysiology of this finding. The importance of describing the hemorrhages adequately is paramount in ensuring accurate and complete differential diagnosis. Challenges remain in developing models that adequately replicate the forces required to cause retinal hemorrhage in children. Although questions, such as the effect of increased intracranial pressure, hypoxia, and impact, are still raised (particularly in court), clinicians can confidently rely on a large and solid evidence base when assessing the implications of retinal hemorrhage in children with concern of possible child abuse.

Abusive head trauma

Child physical abuse that results in injury to the head or brain has been described using many terms, including battered child syndrome, whiplash injuries, shaken infant or shaken impact syndrome, and nonmechanistic terms such as abusive head trauma or nonaccidental trauma. These injuries sustained by child abuse victims are discussed in detail in this article, including information about diagnosis, management and outcomes. The use of forensics, the use imaging studies, and associated injuries are also detailed.

What neuroimaging should be performed in children in whom inflicted brain injury (iBI) is suspected? A systematic review

AIMS

To investigate the optimal neuroradiological investigation strategy to identify inflicted brain injury (iBI).

MATERIALS AND METHODS

A systematic review of studies published between 1970-2008 in any language was conducted, searching 20 databases and four websites, using over 100 keywords/phrases, supplemented by hand-searching of references. All studies underwent two independent reviews (with disagreements adjudicated by a third reviewer) by trained reviewers from paediatrics, paediatric neuroradiology and related disciplines, using standardized critical appraisal tools, and strict inclusion/exclusion criteria. We included primary studies that evaluated the diagnostic yield of magnetic resonance imaging (MRI), in addition to initial computed tomography (CT), or follow-up CT or ultrasound in children with suspected iBI.

RESULTS

Of the 320 studies reviewed, 18 met the inclusion criteria, reflecting data on 367 children with iBI and 12 were published since 1998. When an MRI was conducted in addition to an abnormal early CT examination, additional information was found in 25% (95% CI: 18.3-33.16%) of children. The additional findings included further subdural haematoma, subarachnoid haemorrhage, shearing injury, ischaemia, and infarction; it also contributed to dating of injuries. Diffusion-weighted imaging (DWI) further enhanced the delineation of ischaemic changes, and assisted in prognosis. Repeat CT studies varied in timing and quality, and none were compared to the addition of an early MRI/DWI.

CONCLUSIONS

In an acutely ill child, the optimal imaging strategy involves initial CT, followed by early MRI and DWI if early CT examination is abnormal, or there are ongoing clinical concerns. The role of repeat CT imaging, if early MRI is performed, is unclear, as is the place for MRI/DWI if initial CT examination is normal in an otherwise well child.

Abusive head trauma in infants and young children: a unique contributor to developmental disabilities

Abusive head trauma in infants and young children is the leading cause of death and disability from child abuse. This article discusses the history, epidemiology, clinical aspects, developmental outcomes, and associated injuries of this unique contributor to developmental disabilities. Prevention of abusive injuries and prevention of child abuse and neglect are also discussed.

Update on child maltreatment with a special focus on shaken baby syndrome

PURPOSE OF REVIEW

The many forms of child maltreatment exact an unacceptably heavy toll on our children. Recent work exploring the risk factors for child abuse and neglect, long-term consequences of child maltreatment, and potential for primary prevention will be reviewed. In the past year there have been many notable contributions in the field of shaken baby syndrome that have deepened our understanding of this devastating form of child abuse.

RECENT FINDINGS

Evidence of the long-term sequelae of child abuse and neglect continues to accumulate, but with increased understanding of the clinical manifestations of child maltreatment has come greater ability to intervene early and perhaps improve long-term outcomes. Although the effectiveness of some home visiting programs to prevent child maltreatment is coming into question, rigorous review of program components is helping to improve quality. There remain controversies in the diagnosis of shaken baby syndrome but several carefully done case-series are clarifying our knowledge of the myriad presentations of this form of non-accidental head trauma.

SUMMARY

Pediatricians have an important role to play in the prevention and recognition of child maltreatment.