Retinodural haemorrhage of infancy, abusive head trauma, shaken baby syndrome: The continuing quest for evidence.

The shaken baby syndrome was originally proposed in the 1970s without any formal scientific basis. Once data generated by scientific research was available, the hypothesis became controversial. There developed essentially two sides in the debate. One side claimed that the clinical triad of subdural haemorrhage, retinal haemorrhage, and encephalopathy, or its components, is evidence that an infant has been shaken. The other side stated this is not a scientifically valid proposal and that alternative causes, such as low falls and natural diseases, should be considered. The controversy continues, but the contours have shifted. During the last 15 years, research has shown that the triad is not sufficient to infer shaking or abuse and the shaking hypothesis does not meet the standards of evidence-based medicine. This raises the issue of whether it is fit for either clinical practice or for the courtroom; evidence presented to the courts must be unassailable. WHAT THIS PAPER ADDS: There is insufficient scientific evidence to assume that an infant with the triad of subdural haemorrhage (SDH), retinal haemorrhage, and encephalopathy must have been shaken. Biomechanical and animal studies have failed to support the hypothesis that shaking can cause SDH and retinal haemorrhage. Patterns of retinal haemorrhage cannot distinguish abuse. Retinal haemorrhages are commonly associated with extracerebral fluid collections (including SDH) but not with shaking. Infants can develop SDH, retinal haemorrhage, and encephalopathy from natural diseases and falls as low as 1 foot. The shaking hypothesis and the literature on which it depends do not meet the standards of evidence-based medicine.

The Eyes Have It: How Critical are Ophthalmic Findings to the Diagnosis of Pediatric Abusive Head Trauma?

Pediatric abusive head trauma (AHT), still colloquially known as shaken baby syndrome, is a leading cause of morbidity and mortality among infants. Controversy has grown surrounding this diagnosis, and the specificity of the clinical findings-subdural hemorrhage, cerebral edema, and retinal hemorrhages-has been challenged. A literature search of peer reviewed publications on PubMed pertaining to the history, clinical, and pathologic features of AHT was conducted using the terms "shaken baby syndrome," "non-accidental trauma," "abusive head trauma," "inflicted traumatic brain injury," "shaken impact syndrome," and "whiplash shaken infant syndrome." Focus was placed on articles discussing ophthalmic findings in AHT. Retinal hemorrhages-particularly those that are too numerous to count, occurring in all layers of the retina (preretinal, intraretinal, subretinal), covering the peripheral pole and extending to the ora serrata, and accompanied by retinoschisis and other ocular/periocular hemorrhages-are highly suggestive of AHT, particularly in the absence of otherwise explained massive accidental trauma. Although the diagnosis has grown in controversy in recent years, AHT has well-documented clinical and pathologic findings across a large number of studies.

Shaken Baby Syndrome (SBS) or Pediatric Abusive Head Trauma from Shaking: Guidelines for Interventions During the Perinatal Period from the French National College Of Midwives.

Shaken baby syndrome is the most severe head injury in children. Shaking is an extremely violent gesture, often repeated. The children affected are generally less than a year old, in 2/3 of cases, less than 6 months old. More than 10% of them die, and more than three-quarters of the survivors have long-term effects. Prevention is therefore essential. When a parent (or any person) is strongly upset by an infant's uncalmable crying, the best thing for them to do is to lay the child down in a supine position in his or her bed, leave the room, and then ask for help.

A suspected case of shaken baby syndrome-clinical management in Germany: a case-based overview.

PURPOSE: Each year, between 100 and 200 cases with shaken baby syndrome (SBS) are hospitalized in Germany. The reported incidence is 14 in 100,000 children. About 10 to 30% of the affected children do not survive. A high number of unreported cases are assumed. The rate of lifelong disability is high. The current situation in respect of abusive head injuries in infants has been investigated. MATERIAL AND METHODS: A case-based overview on the management of SBS in a German reference center for pediatric neurosurgery is presented and discussed against the background of forensic data and child protection network institutions and guidelines. RESULTS: The presented case is an example of a typical SBS presentation. All necessary diagnostic and therapeutic steps are explained and evaluated according to the existing guidelines in Germany. The authors state that hospital SOP can help to detect suspected cases of SBS and define the role of the pediatric neurosurgeon. Although the abusive mechanism of a head trauma is clear in most cases, forensic methods lack the precision to identify a perpetrator in all of them. According to an analysis of a multi-center study on criminal proceedings in Germany, 50% of the proceedings were closed without judgment due to lack of suspicion. Out of the remaining half with judgment, in 17%, the court decided on acquittal since the perpetration could not be assigned to a specific individual. CONCLUSION: Prevention is the most important factor to protect children from death and disability caused by inflicted brain injury. Pediatric healthcare professionals must be aware of typical signs of suspected child abuse, SBS in particular, and institutional SOP can help to improve management and outcome in these children. Forensic methods lack the precision to identify a perpetrator in every case.

Abusive head trauma in small children - a single-centre experience in Finland.

Shaken baby syndrome (SBS) is a challenging condition from both a medical and legal perspective. The path of the patients differs significantly from those with noninflicted traumas. While treating these cases, it is essential that all history, information and treatment are comprehensively documented. This article describes the investigations and interventions necessary as soon as SBS is suspected. The Oulu University Hospital protocol for suspected child abuse is described. Authors also give an overview of the SBS path in Finland from the police and prosecution's point of view.

Abusive head injuries in infants: from founders to denialism and beyond.

INTRODUCTION: Abusive head injuries is a major cause of severe morbidity and the main cause of mortality by head trauma in infants. MATERIAL AND METHODS: Based on published data and their own clinical and medicolegal practice, the authors review briefly the historical roots and emergence of the concept of abusive head injuries (AHI), until the present scientific understanding of shaken baby syndrome (SBS) and Silverman syndrome. They then discuss the present epidemic of denialism and how this challenge to science should be seen as a stimulus to increase research and improve the accuracy of diagnosis and medical practice. RESULTS: The denial of SBS is especially damaging because it undermines the possibilities of prevention and reparation for victims. The authors expand on AHI being part of a wider context of domestic violence and the prevention of child abuse being part of a broad and long-term endeavor to defend civilization values. CONCLUSIONS: Prevention of AHI is a major challenge for the future. In the fields of science and prevention of child abuse, the input of pediatric neurosurgeons should not be underestimated.

Parental awareness, knowledge, and attitude about shaken baby syndrome in Riyadh, Saudi Arabia: a cross-sectional study.

Introduction: shaken baby syndrome (SBS) is an abusive head trauma inflicted on infants and young children. Injuries induced by shaking can result in death or permanent neurologic disability. It is difficult to know the exact number of SBS cases per year because many cases of SBS are not reported and/or never receive a diagnosis. From a public health perspective, creating greater awareness about SBS is important. Previous studies have revealed poor awareness and knowledge about shaken baby syndrome. In this study our aims to investigate the awareness, knowledge level, and attitude regarding shaken baby syndrome and to highlight the sources and factors associated with SBS knowledge among parents of the pediatric population in Riyadh, Saudi Arabia. Methods: a cross-sectional study was conducted between January 2021 and September 2021. A validated electronic questionnaire was distributed among parents of the pediatric population in Riyadh, Saudi Arabia using the convenient random sampling method; SPSS version 22 was used to analyze the collected data. Results: the study involved 577 participants; 59.8% were mothers and 96.5% were Saudis. A total of 32.1% had previously heard about SBS. The overall knowledge mean score was low (2.95 + 1.74), and attitude was positive among 82.5% of the participants. The factors significantly associated with knowledge level were gender, marital status, and occupation. Conclusion: the participants had poor knowledge and awareness about SBS, but, despite that, they expressed a positive attitude toward learning more about it. This should prompt health authorities to increase efforts to improve public awareness and knowledge about SBS.

Animal models of pediatric abusive head trauma.

BACKGROUND: Abusive head trauma (AHT), previously known as the shaken baby syndrome, is a severe and potentially fatal form of traumatic brain injury in infant children who have been shaken, and sometimes also sustained an additional head impact. The clinical and autopsy findings in AHT are not pathognomonic and, due to frequent obfuscation by perpetrators, the circumstances surrounding the alleged abuse are often unclear. The concept has evolved that the finding of the combination of subdural hemorrhage, brain injury, and retinal hemorrhages ("the triad") is the result of shaking of an infant ("shaken baby syndrome") and has led to the ongoing controversy whether shaking alone is able to generate sufficient force to produce these lesions. OBJECTIVE: In an attempt to investigate whether shaking can engender this lesion triad, animal models have been developed in laboratory rodents and domestic animal species. This review assesses the utility of these animal models to reliably reproduce human AHT pathology and evaluate the effects of shaking on the immature brain. RESULTS: Due largely to irreconcilable anatomic species differences between these animal brains and human infants, and a lack of resemblance of the experimental head shaking induced by mechanical devices to real-world human neurotrauma, no animal model has been able to reliably reproduce the full range of neuropathologic AHT changes. CONCLUSION: Some animal models can simulate specific brain and ophthalmic lesions found in human AHT cases and provide useful information on their pathogenesis. Moreover, one animal model demonstrated that shaking of a freely mobile head, without an additional head impact, could be lethal, and produce significant brain pathology.

A Biomechanical Assessment of Shaken Baby Syndrome: What About the Spine?

BACKGROUND: Shaken baby syndrome occurs following inertial loading of the pediatric head, resulting in retinal hemorrhaging, subdural hematoma, and encephalopathy. However, the anatomically vulnerable cervical spine receives little attention. Automotive safety literature is replete with biomechanical data involving forward-facing pediatric surrogates in frontal collisions, an environment analogous to shaking. Publicly available data involving child occupants were utilized to study pediatric neck and head injury potential. We hypothesized that inertial loading provides a greater risk of injury to the cervical spine than to the head. METHODS: Full-scale automotive crash tests (n = 131) and deceleration sled tests (n = 32) utilizing forward-facing 3-year-old surrogates with head accelerometers and cervical force sensors were analyzed. One hundred sixty-seven full-scale vehicle and 33 sled test runs were assessed in the context of published injury assessment reference values (IARVs) for closed head injury (head injury criterion 15 [HIC15]) and cervical tensile strength in the 3-year-old model. RESULTS: One hundred sixty-one (96%) child surrogates in full-scale crash tests exceeded the cervical peak tension IARV, while only 37 (22%) surpassed the HIC15 IARV. Similarly, in sled testing runs, 27 (82%) pediatric surrogates exceeded cervical tension IARVs, while 1 (3%) surpassed the HIC15 IARV. In both full-scale and sled tests, all surrogates surpassing the HIC15 IARV also exceeded the cervical tension IARV. Positive linear correlations were observed between HIC15 and cervical tensile forces in both full-scale vehicle (R2 = 0.15) and sled testing runs (R2 = 0.54). CONCLUSIONS: These data support the hypothesis that inertial loading of the head provides a greater injury risk to the cervical spine than to closed-head injury.

Transfer of knowledge to diagnose infant abuse and its incidence - a time-series analysis from Sweden.

AIM: To analyse the transfer of knowledge on how to detect physical abuse, especially shaken baby syndrome/abusive head trauma (SBS/AHT), and its association to trends in infant abuse diagnoses (maltreatment and assault). METHODS: Design: retrospective population-based and quasi-experimental. SETTING: Sweden 1987-2019. PATIENTS: Children below age 1 year, selected from the National Patient Register (n = 1150). Exposures: Literature search for transfer of knowledge by diffusion, dissemination and implementation, and whether supportive or disruptive of the SBS/AHT paradigm. MAIN OUTCOME MEASURE: Abuse diagnoses (maltreatment or assault). ANALYSES: Incidence rate, incidence rate ratio (IRR). RESULTS: The overall incidence rate of abuse was 32.23 per 100,000 during the years 1987-2019. It was rather stable 1987-2000. The SBS diagnosis was introduced in the late 1990s. A comprehensive increase of transfer of knowledge on physical abuse, specifically on SBS/AHT and dangers of shaking, took place from 2002 and onward through diffusion, dissemination and implementation. Maltreatment diagnoses, but not assault diagnosis, increased steeply during 2002-2007, peaking in 2008-2013 [IRR 1.63 (95% confidence interval 1.34-1.98)]. Transfer of disruptive knowledge on SBS/AHT during the period 2014-2019 was associated with a decline in maltreatment diagnoses [IRR 0.84 (95% confidence interval 0.71-0.99)]. CONCLUSION: An increase in maltreatment diagnoses was associated with transfer of supportive knowledge of the SBS/AHT paradigm, while a decline occurred toward the end of the study period, which might indicate a burgeoning de-implementation process.