Acceptance of Shaken Baby Syndrome and Abusive Head Trauma as Medical Diagnoses.

OBJECTIVE: To assess the current general acceptance within the medical community of shaken baby syndrome (SBS), abusive head trauma (AHT), and several alternative explanations for findings commonly seen in abused children. STUDY DESIGN: This was a survey of physicians frequently involved in the evaluation of injured children at 10 leading children's hospitals. Physicians were asked to estimate the likelihood that subdural hematoma, severe retinal hemorrhages, and coma or death would result from several proposed mechanisms. RESULTS: Of the 1378 physicians surveyed, 682 (49.5%) responded, and 628 were included in the final sample. A large majority of respondents felt that shaking with or without impact would be likely or highly likely to result in subdural hematoma, severe retinal hemorrhages, and coma or death, and that none of the alternative theories except motor vehicle collision would result in these 3 findings. SBS and AHT were comsidered valid diagnoses by 88% and 93% of the respondents, respectively. CONCLUSIONS: Our empirical data confirm that SBS and AHT are still generally accepted by physicians who frequently encounter suspected child abuse cases, and are considered likely sources of subdural hematoma, severe retinal hemorrhages, and coma or death in young children. Other than a high-velocity motor vehicle collision, no alternative theories of causation for these findings are generally accepted.

Epidemiological data on shaken baby syndrome in France using judicial sources.

BACKGROUND: The frequency of and risk factors for shaken baby syndrome remain poorly documented for several reasons: the real number of "benign" cases of shaken baby syndrome are not known; information sources used are diverse, there have been changes over time in the definition of this pathology and few population-based epidemiological studies are available. OBJECTIVE: Estimate the frequency of fatal shaken baby syndrome and determine its risk factors through research carried out on fatal cases in three regions of France while comparing them to data from international publications. MATERIALS AND METHODS: A retrospective epidemiological study of all cases of fatal shaken baby syndrome affecting infants younger than 1 year of age who were examined by the courts during a 5-year period in a defined geographical area. Shaken baby syndrome cases were compared with infanticide cases for risk factors and a comparison was made of family characteristics with those of the general population. RESULTS: Thirty-seven cases of shaken baby syndrome were recorded (a rate of 2.9 for 100,000 live births). As in other studies, we found a strong predominance of male victims (78%), young age (median age: 4 months) and a high rate of prematurity (22%). Conversely, results on family educational and socioeconomical levels differ from those reported in numerous studies. Parent perpetrators of shaken baby syndrome belong to higher social classes than those of other types of homicide and socially reflect the population they come from. CONCLUSION: Our study suggests 1) that epidemiological studies on shaken baby syndrome should include both medical and judicial information sources and 2) that primary prevention strategies (especially in maternity wards) should target all social classes.

Disability-adjusted life-year burden of abusive head trauma at ages 0-4.

OBJECTIVE: We estimated the disability-adjusted life-year (DALY) burden of abusive head trauma (AHT) at ages 0 to 4 years in the United States. METHODS: DALYs are computed by summing years of productive life that survivors lost to disability plus life-years lost to premature death. Surveying a convenience sample of 170 caregivers and pediatricians yielded health-related disability over time according to severity of AHT (measured with the Health Utilities Index, Mark 2). Incidence estimates for 2009 came from Vital Statistics for Mortality, Healthcare Cost and Utilization Program Kids' Inpatient Database for hospitalized survivors, and published ratios of 0.894 case treated and released and 0.340 case not diagnosed/treated while in the acute phase per survivor admitted. Survival probability over time after discharge came from published sources. RESULTS: An estimated 4824 AHT cases in 2009 included 334 fatalities within 30 days. DALYs per surviving child averaged 0.555 annually for severe AHT (95% confidence interval: 0.512-0.598) and 0.155 (95% confidence interval: 0.120-0.190) for other cases. Including life-years lost to premature mortality, estimated lifetime burden averaged 4.7 DALYs for mild AHT, 5.4 for moderate AHT, 24.1 for severe AHT, and 29.8 for deaths. On average, DALY loss per 30-day survivor included 7.6 years of lost life expectancy and 5.7 years lived with disability. Estimated burden of AHT incidents in 2009 was 69 925 DALYs or 0.017 DALYs per US live birth. CONCLUSIONS: AHT is extremely serious, often resulting in severe physical damage or death. The annual DALY burden several years after mild AHT exceeds the DALY burden of a severe burn.

A brief history of fatal child maltreatment and neglect.

Child abuse encompasses four major forms of abuse: physical abuse, sexual abuse, psychological abuse, and neglect. The United States retains one of the worst records of child abuse in the industrialized world. It has also been determined that a large portion of these cases are missed and go undocumented in state and federal reporting agencies. In addition, disparate risk factors have been identified for physical abuse and neglect cases, but substance abuse has been found to be a significant factor in all forms of abuse. Fatal child maltreatment and neglect investigations require a multi-pronged and multidisciplinary approach requiring the coordination and information gathering from various agencies. A major difficulty in determining the accidental or non-accidental nature of these cases is that the account surrounding the events of the death of child is acquired from the caretaker. In this review, we outline common diagnostic characteristics and patterns of non-accidental injuries and neglect as a result of nutritional deprivation.

Apparent diffusion coefficient values predict outcomes of abusive head trauma.

AIM: To evaluate the apparent diffusion coefficient (ADC) values for predicting the long-term neurodevelopmental outcomes of patients with abusive head trauma (AHT). METHODS: Apparent diffusion coefficient maps were retrospectively reviewed for 14 patients who presented with AHT at a mean age of 6.7 months (range 1-18 months), and the clinical outcomes of the survivors were based on the Glasgow Outcome Score. RESULTS: One of 14 infants died, and two were severely disabled. One had mild impairment and four had moderate disability. In the 4 days after admission, the ADC values in all brain regions were strongly associated with a poor neurodevelopmental outcome (p < 0.05): basal ganglia, thalamus, brain stem, corpus callosum, frontal white matter, central white matter, parietal white matter, frontal grey matter, parietal grey matter, cerebellar vermis, cerebellar cortex and mean total brain. CONCLUSION: Apparent diffusion coefficient values during the acute phase of AHT were significantly associated with poor long-term neurodevelopmental outcomes.

Abusive head trauma in children: a comparison of male and female perpetrators.

OBJECTIVE: To evaluate the effect of perpetrator gender on victim presentation and outcomes, and perpetrator legal outcomes for abusive head trauma (AHT). METHODS: We performed a retrospective chart review of AHT cases from 1998 to 2008. Patient clinical data and information regarding perpetrator legal outcome was obtained. Relationship of brain injury and retinal hemorrhages (RHs) and differences in categorical variables of perpetrator gender were compared by using Fisher's exact test. Differences in continuous variables between perpetrator gender were compared by using the Mann-Whitney Test. RESULTS: There were 34 cases of AHT with identified perpetrators, 17 of each gender. Mean age of the victims was 9.4 months (SD: 7.8). Thirty-two (94%) had intracranial hemorrhages, 14 (41%) had both primary and secondary brain injury, 28 (82%) had RHs, and 6 (18%) died. The severity of RH was related to the severity of brain injuries (P = .01). The median age for female perpetrators (34 years) was higher than that for males (27 years; P = .001). Six categorical variables were associated with male perpetrator gender: acute presenting symptoms of cardiopulmonary or respiratory arrest (P = .025), worse clinical outcome (P = .012), neurosurgical intervention (P = .037), death (P = .018), perpetrator confession (P = .0001), and conviction (P = .005). CONCLUSIONS: There were significant perpetrator gender differences of AHT in children. Male perpetrators were younger and more likely to confess and be convicted. Victims of male perpetrators had more serious acute presentations and neurosurgical intervention and suffered worse clinical outcomes.

Initial predictive factors of outcome in severe non-accidental head trauma in children.

OBJECT: The aim of this study is to evaluate the outcome of young children hospitalized for non-accidental head trauma in our PICU, to evaluate PRISM II score in this sub-population of pediatric trauma and to identify factors that might influence the short-term outcome. MATERIALS AND METHODS: Files of all children less than 2 years old with the diagnosis of non-accidental head trauma over a 10-years period were systematically reviewed. We collected data on demographic information, medical history, clinical status, and management in the PICU. Three severity scores were then calculated: PRISM II, Glasgow Coma Scale (GCS), and Pediatric Trauma Score (PTS). Prognosis value of qualitative variables was tested with a univariate procedure analysis (anemia, diabetes insipidus...). Then, quantitative variables were tested with univariate procedure too (age, weight, PRISM II, GCS, Platelet count, fibrin, prothrombin time (PT)...). Potential association between variables and death was tested using univariate procedure. Variables identified by univariate analysis were then analyzed with multivariate analysis through a forward-stepping logistic regression. RESULTS: Thirty-six children were included. Mean age was 5.5 months (8 days-21.5 months). Mortality rate was 27.8%. At admission, PTS, PRISM II, GCS, PT, PTT, and diabetes insipidus were significantly altered or more frequent in non survivors. Cutoff value for PRISM II at which risk of mortality increased was 17.5 (sensitivity = 0.8; specificity = 0.88). CONCLUSION: PRISM II is a reliable and easy performing tool for assessing the prognosis of non-accidental cranial traumatism in young children. GCS and PTS, scores even simpler than PRISM II, showed good accuracy regarding survival prediction.

Predictive value of clinical and radiological findings in inflicted traumatic brain injury.

AIMS: The aim of this study is to evaluate the value of early radiological investigations in predicting the long-term neurodevelopmental outcome of infants with inflicted traumatic brain injury (ITBI). METHODS: Clinical and radiological investigations of 24 infants with ITBI were performed during the acute phase of injury (1-3 days), and during the early (4 days up to 3 months) and late (>9 months) postinjury phases. The clinical outcome in survivors (n = 22) was based on the Rankin Disability Scale and the Glasgow Outcome Score. RESULTS: Five out of 24 infants (21%) had a poor neurodevelopmental outcome (death and severe disability), 17 infants (71%) had different developmental problems and 2 infants were normal at the mean age of 62 (54-70) (95% CI) months. A low initial Glasgow Coma Scale score of 8 or below [p < 0.05, OR 13.0 (1.3-133.3)], the development of brain oedema [p < 0.005, OR 13.0 (1.6-773)], focal changes in the basal ganglia during the acute phase [p < 0.01, OR 45 (2.1-937.3)], the development of new intracerebral focal changes early postinjury [p < 0.05, OR 24.1(1.0-559.1)], a decrease in white matter [p < 0.01, OR 33 (1.37-793.4)] and the development of severe atrophy before 3 months postinjury [p < 0.05, OR 24 (11.0-559.1)] were significantly correlated with a poor neurodevelopmental outcome. CONCLUSIONS: Early clinical and radiological findings in ITBI are of prognostic value for neurodevelopmental outcome.

Shaken baby syndrome in Switzerland: results of a prospective follow-up study, 2002-2007.

Since the incidence of shaken baby syndrome in Switzerland was not known, we conducted a nationwide prospective follow-up study for a 5-year period (from 2002 to 2007). The data were collected through the Swiss Pediatric Surveillance Unit. Inclusion criteria were the presence, in a child 6 years or documented accident/disease explaining symptoms/findings. To describe outcome, we used the King's Outcome Scale for Childhood Head Injury (KOSCHI). 56 cases were reported from 13 of 26 Swiss cantons, representing 80% of the Swiss population; 49 cases met the inclusion criteria. Preponderance of male infants was high (31 male and 18 female); median age at admission was 4 months (1-58). Clinical symptoms were present in 42 infants, retinal/vitreous hemorrhages in 39 infants, and pathological brain/head imaging in 46 infants. In 13 cases, the caregivers admitted shaking the child. Outcomes (KOSCHI 1-5; n = 47 patients) were death (KOSCHI 1) 8 (17.7%), vegetative state (KOSCHI 2) 0, severe disability (KOSCHI 3) 11 (22.2%), moderate disability (KOSCHI 4) 14 (31.1%), and good recovery (KOSCHI 5) 14 (28.8%). Based on these data, the incidence of shaken baby syndrome in Switzerland is 14 per 100 000 live births, which corresponds to the incidence in other Western countries. Demographic characteristics and outcomes of Swiss patients were comparable to published studies.

[Shaken baby syndrome]. / Shaken-baby-Syndrom.

Shaken baby syndrome (SBS) describes the coincidence of subdural hematoma, retinal bleeding and, disadvantageous for the prognosis, diffuse brain damage caused by powerful shaking of the infant. The clinical symptoms include irritability, difficulty with drinking, somnolence, apathy, cerebral cramp attacks, apnoea, temperature regulation disorders and vomiting due to cranial pressure. Milder symptoms of SBS are often not diagnosed and the number of unregistered cases is probably much greater. The diagnosis of SBS is made through the typical symptom constellation, but the lack of retinal bleeding does not exclude the diagnosis. Normally the infants are held by the thorax or upper arms and shaken in a sagittal direction during which the head falls backwards and forwards and is stopped abruptly at each extreme position. The injurious mechanism is considered to be caused by rotational forces which force tissue layers in the brain against each other and also lead to rupture of bridging veins between the skull and the brain. The prognosis is poor and approximately 25% of infants die of SBS within days or weeks. Approximately 75% of survivors suffer from long term damage with physical handicaps, limitations in hearing, visual disturbances up to blindness and mental disorders or combinations of these conditions. Prevention is therefore the most important aspect.

Shaken baby syndrome: a common variant of non-accidental head injury in infants.

BACKGROUND: Recent cases of child abuse reported in the media have underlined the importance of unambiguous diagnosis and appropriate action. Failure to recognize abuse may have severe consequences. Abuse of infants often leaves few external signs of injury and therefore merits special diligence, especially in the case of non-accidental head injury, which has high morbidity and mortality. METHODS: Selective literature review including an overview over national and international recommendations. RESULTS: Shaken baby syndrome is a common manifestation of non-accidental head injury in infancy. In Germany, there are an estimated 100 to 200 cases annually. The characteristic findings are diffuse encephalopathy and subdural and retinal hemorrhage in the absence of an adequate explanation. The mortality can be as high as 30%, and up to 70% of survivors suffer long-term impairment. Assessment of suspected child abuse requires meticulous documentation in order to preserve evidence as well as radiological, ophthalmological, laboratory, and forensic investigations. CONCLUSIONS: The correct diagnosis of shaken baby syndrome requires understanding of the underlying pathophysiology. Assessment of suspected child abuse necessitates painstaking clinical examination with careful documentation of the findings. A multidisciplinary approach is indicated. Continuation, expansion, and evaluation of existing preventive measures in Germany is required.

Fatal head injury in children younger than 2 years in New York City and an overview of the shaken baby syndrome.

CONTEXT: Shaken baby syndrome is a controversial topic in forensic pathology. Some forensic pathologists state that shaking alone is insufficient to explain death and that an impact must have occurred even if there is no impact site on the head. OBJECTIVE: To examine a large cohort of fatal, pediatric head injuries for patterns of specific autopsy findings and circumstances that would support or dispute pure shaking as the cause of death. DESIGN: We retrospectively reviewed 59 deaths due to head injuries in children younger than 2 years certified in our office during a 9 year period (1998-2006). The review included autopsy, toxicology, microscopy, neuropathology, and police and investigators' reports. RESULTS: There were 46 homicides, 8 accidents, and 1 undetermined death from blunt-impact injury of the head. In 10 (22%) of the homicides, there was no impact injury to the head, and the cause of death was certified as whiplash shaking. In 4 (40%) of these 10 deaths, there was a history of shaking. In 5 (83%) of the other 6, there was no history of any purported accidental or homicidal injury. All 8 accidental deaths had impact sites. Of the 59 deaths, 4 (6.7%) had only remote injuries (chronic subdural hematomas, remote long bone fractures) that were certified as undetermined cause and manner. These 4 deaths were excluded from the study. CONCLUSIONS: We describe a subset of fatal, nonaccidental head-injury deaths in infants without an impact to the head. The autopsy findings and circumstances are diagnostic of a nonimpact, shaking mechanism as the cause of death. Fatal, accidental head injuries in children younger than 2 years are rare.

Fatal abusive head trauma cases: consequence of medical staff missing milder forms of physical abuse.

OBJECTIVES: Missed diagnosis of child abuse may lead to chronic abuse with potential for death. This paper reports 3 such cases. METHODS: This is a retrospective chart review of 38 cases diagnosed as abusive head trauma between January 1, 2004 and December 31, 2006 at a university hospital. We sought to identify fatal cases with a past medical history of physical abuse that was missed by the medical staff. RESULTS: Three cases (7.9%) had a past medical history of physical abuse that was missed by the medical staff. Infants were 2 males and 1 female. Their ages were 2.5, 3.5, and 6 months, respectively. Missed abuse episodes involved rib fractures, a metaphyseal tibial fracture, and a shaking episode, respectively. The intervals that had elapsed between the missed and the fatal abuse episodes were 24 hours, 12 days, and 6 weeks, respectively. Perpetrators of fatal head trauma were all biological fathers. One plead guilty, and 2 were convicted of involuntary manslaughter. The infants were in the care of the perpetrators of the fatal abuse episodes at the time the missed abuse episodes occurred. CONCLUSIONS: Physicians assessing children, especially infants, should be alert to indicators of abusive trauma to recognize abuse early on. Including abusive trauma in the differential diagnostic list and taking appropriate steps to rule out or confirm the diagnosis are of paramount importance in establishing child protective services and preventing further abuse and neglect that may at times be fatal.

Shaken baby syndrome in New Zealand, 2000-2002.

AIM: To describe the epidemiology of subdural haemorrhage (SDH) in New Zealand infants. METHODS: Prospective enrollment of all cases of infantile SDH from 2000 to 2002. Retrospective analysis of national discharge and death data for the same period. RESULTS: Seventy-seven cases of infantile SDH were identified prospectively, and a further 49 cases retrospectively. Of these 126 cases, 92 resulted from non-birth-related trauma. Forty-eight of these were attributed to abuse and 28 to accidental injury. Sixteen cases were undetermined. The 'minimum' annual incidence of inflicted infantile SDH in New Zealand is 14.7 per 100,000 (95% confidence interval(CI) 10.8-19.4), and the 'maximum' 19.6 per 100,000 (95% CI 15.1-25.0). Among Maori, the 'minimum' is 32.5 per 100,000 (95% CI 21.4-47.3), and the 'maximum' 38.5 per 100,000 (95% CI 26.3-54.4). CONCLUSIONS: The epidemiology of infantile subdural haemorrhage in New Zealand is similar to that described elsewhere. Non-accidental head injury is a significant child health issue in New Zealand, and the incidence is particularly high among Maori.

Inflicted traumatic brain injury (ITBI) or shaken baby syndrome (SBS) in Estonia.

BACKGROUND: Inflicted traumatic brain injury (ITBI) or shaken baby syndrome (SBS) is recognized as a major cause of disability and death in the paediatric population. AIM: To find out the incidence of ITBI in Estonia. METHODS: 26 cases of ITBI were recognized: four children died, 22 survived. RESULTS: Of 26 children, 20 (77%) were boys and six (23%) were girls. Median age at admission to hospital was 3.9 mo, and the boys were younger than the girls. CONCLUSION: The overall incidence of ITBI was 28.7 per 100,000 infants. In the prospective group the incidence was 40.5 per 100,000, and in retrospective group 13.5 per 100,000. ITBI is not rare but not always a recognized form of child abuse. Healthcare professionals should be more aware of this condition.

Non-accidental fatal head injury in small children--a clinico-pathological correlation.

Non-accidental head injury leading to massive intracranial trauma has been identified as a leading cause of death in small children. In a typical case, a child usually below the age of one year is violently shaken, leading to rupture of the connecting veins between the dura mater and the brain substance with variable degrees of bleeding into the subdural space resulting in increased intracranial pressure. The accompanying venous thrombosis affecting the vessels of the brain substance leads to cerebral hypoxia and cellular death. In this study conducted throughout the year 1999, all children below the age of 3 years who were admitted to Hospital Kuala Lumpur and had died due to non-accidental injuries were included. Postmortems, including histopathological studies, were conducted to determine the most likely mechanisms of the injuries. Ten cases were identified for the whole year. In 2 cases, both below one year of age, the features presented showed evidence of violent shaking of the infants. In 6 other cases whose average age was 13 (range 4-24) months, there were evidences of direct trauma and violent shaking. In the last two cases, aged 24 and 33 months respectively, there was only evidence of direct trauma on the heads without being shaken. This study shows that death due to intracranial trauma caused by shaking with or without direct impact is the most frequent cause of mortality in abused children. Death due to direct impact between the head and another object is a less frequent occurrence.