Evaluation Of Abuse Research Articles

Expert Consensus on Cognitive Biases Affecting Child Physical Abuse Evaluations in Pediatric Emergency Medicine: A Modified Delphi Study

Expert Consensus on Cognitive Biases Affecting Child Physical Abuse Evaluations in Pediatric Emergency Medicine: A Modified Delphi Study

12 Access to paediatric maltreatment services through a northern community hospital

Abstract Background Few studies have evaluated how paediatric maltreatment services based in community hospitals can provide access to care for populations who live far away from tertiary centres. The Violence Intervention Prevention Program (VIPP) and the Paediatric Abuse and Referral Evaluation (PARE) clinic based in a northern community hospital in Canada offer assessment for sexual and physical maltreatment. Objectives The aim of the study was to describe demographic and clinical characteristics of patients accessing VIPP and PARE services and to characterize the length of time required to access care. Design/Methods We conducted a retrospective chart review of patients, under 16 years of age, who attended PARE clinic for initial consultation between 2017-2019. Analyses were descriptive. This work was approved by the research ethics board at our hospital. There are no funding disclosures. Results Of 164 patients, 62.2% were female; 37.8% male. The mean age was 6.6 years, ranging from 1 month to 15.9 years. 54.3% of referrals were for suspected physical maltreatment, 44.4% for suspected sexual maltreatment and 1.2% for both. 87.5% of patients listed home addresses within the hospital’s city limits. The maximum distance travelled from home to access care was 171 km. 87.2% of patients presented through the emergency department; a minority presented through direct referral to outpatient services (11.5%) or through inpatient (1.2%). When called from the emergency department, on-call VIPP nurses responded within a mean of 32 minutes for initial assessment. These patients received a maltreatment assessment by a paediatrician through the PARE clinic a mean of 14.3 days later. If patients did not present through the emergency department, the mean wait time for a maltreatment assessment by a paediatrician was 16 days. 13.4% (22/164) required referral to other medical or multidisciplinary services. General paediatrics (11/22) was the most frequent referral, followed by community speech programs (5/22). A minority (3.0%) of cases required consultation with external maltreatment teams, where two cases were peer-reviewed with a tertiary care team, one with a paediatric maltreatment physician at another community hospital and two cases were reviewed with a paediatric tertiary care radiologist. Conclusion Our results suggest that community-based paediatric maltreatment services provide care for our regional northern population. There is timely on-call access to allied-health providers through the emergency department. All patients were able to be assessed locally and none were required to travel to a tertiary care hospital. Further study is needed to assess how our data compares to other community maltreatment programs.

Barriers to Adoption of a Child-Abuse Clinical Decision Support System in Emergency Departments.

Child abuse is a leading cause of morbidity and mortality in children. The rate of missed child abuse in general emergency departments (ED), where 85% of children are evaluated, is higher than in pediatric EDs. We sought to evaluate the impact of an electronic health record (EHR)-embedded child-abuse clinical decision support system (CA-CDSS) in the identification and evaluation of child maltreatment in a network of EDs three years after implementation. We anonymously surveyed all 196 ED attending physicians and advanced practice practitioners (APP) in the University of Pittsburgh Medical Center network. The survey evaluated practitioner awareness of, attitudes toward, and changes in clinical practice prompted by the CA-CDSS. We also assessed practitioner recognition and evaluation of sentinel injuries. Of the 71 practitioners (36%) who responded to the survey, 75% felt the tool raised child abuse awareness, and 72% had a face-to-face discussion with the child's nurse after receiving a CA-CDSS alert. Among APPs, 72% consulted with the attending physician after receiving an alert. Many practitioners were unaware of at least one function of the CA-CDSS; 38% did not know who completed the child abuse screen (CAS); 54% were unaware that they could view the results of the CAS in the EHR, and 69% did not recognize the clinical decision support dashboard icon. Slightly over 20% of respondents felt that the CA-CDSS limited autonomy; and 4.5% disagreed with the recommendations in the physical abuse order set, which reflects American Academy of Pediatrics (AAP) guidelines. Greater than 90% of respondents correctly identified an intraoral injury and torso bruise in an infant as sentinel injuries requiring an evaluation for abuse. A child-abuse clinical decision support system embedded in the electronic health record was associated with communication among practitioners and was overall perceived as improving child abuse awareness in our system. Practitioners correctly recognized injuries concerning for abuse. Barriers to improving identification and evaluation of abuse include gaps in knowledge about the CA-CDSS and the presence of practitioners who disagree with the AAP recommendations for physical abuse evaluation and/or felt that clinical decision support in general limited their clinical autonomy.

Private clinical psychologists’ role in evaluation and treatment of childhood sexual abuse: A mixed methods study

BackgroundPsychologists play a significant role in addressing sexual violence against children and adolescents (SVCA) in Brazil. Most literature focuses on the role of public service psychologists in the intervention, resulting in the need to explore the role private clinical psychologists’ (PCP) play in SVCA treatment. ObjectiveThe study aims to: 1) investigate a possible relationship between sociodemographic factors, professional profiles, beliefs about SVCA, and PCPs’ decision to report the abuse, and 2) understand the role PCPs play in evaluating, reporting, and treating cases of SVCA. Participants and settingThe study sampled Brazilian PCPs. The quantitative phase consisted of 409 psychologists, and the qualitative phase consisted of 8 psychologists. MethodsThe study used a mixed-methods sequential explanatory design to achieve its goals. The quantitative phase consisted of the Sociodemographic and Professional Questionnaire, Scenario 7, and the Sexual Abuse Belief Scale (SABS) measures. The qualitative phase consisted of individual semi-structured interviews. ResultsThe descriptive statistics and a binary logistic regression model illustrated factors increasing the likelihood of reporting SVCA by PCPs, including a history of treating confirmed sexual violence cases, taking a course on sexual violence, receiving SVCA information during undergraduate studies, having a master and doctoral degree, and having a single relationship status. The thematic analysis resulted in four themes: The definition of sexual violence, the selectivity of the cases, educational under-preparation, and the need to build a performance network. ConclusionPCPs require professional development to treatment SVCA, and schools of Psychology need to improve their curriculum regarding SVCA education.

A national evaluation of Project Cautioning And Relationship Abuse ('CARA') awareness raising workshops for first time offenders of domestic violence and abuse: protocol for a concurrent mixed-methods evaluation design.

Interventions related to the perpetration of Domestic Violence and Abuse (DVA) have gained traction over the past several years, in response to dissatisfaction by victims, an inadequate response from the criminal justice system, increased demand on police time and a lack of rehabilitative responses to the perpetration of domestic abuse. The CARA model is a conditional diversionary caution, offered by police for first time offenders of 'standard' or 'medium risk' domestic abuse, that engages perpetrators in awareness raising workshops and signposts them onto further services. Although quasi-experimental studies have indicated that CARA showed promise at reducing reoffending, the CARA model has yet to be evaluated nationally and there is no qualitative evidence related to understanding or learning about the lived experience of perpetrators and victims as they engage with the intervention. Using a concurrent pragmatic mixed methods design model we will undertake a national evaluation of CARA by triangulating quantitative data from up to nine police forces, and routine data from service providers, with qualitative data from workshop participants, victims and professional stakeholders to: (1) understand the long-term impact of CARA implementation on DVA reoffending and engagement with services and (2) explore perceptions and experiences of both delivery and receipt of CARA. We will use qualitative methodologies that draw on interpretivist and phenomenological perspectives, as well as quantitative methodologies using interrupted time series models, Poisson regression models, Geo mapping and a cost benefits analysis. Where currently the CARA model is being introduced as a national option for standard risk first-time offending, we will engage with policymakers and academics nationally in the live debate on its effectiveness and suitability during its roll-out. Ethical approval was approved by the University of Southampton on the 1 st June 2022 (Ref: ERGO ID: 71818.A1).

Identifying inflicted injuries in infants and young children

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.

Urinalysis in Suspected Child Abuse Evaluation in the Emergency Department.

Intra-abdominal injury (IAI) is the second leading cause of mortality in abused children. It is challenging to identify in young patients due to their limited verbal skills, delayed symptoms, less muscular abdominal wall, and limited bruising. We conducted a retrospective cohort study of children aged 0 to 12 months who were evaluated in the emergency department for suspected child abuse with a skeletal survey and urinalysis between January 1, 2015, and December 31, 2017. Our primary objective was to identify the proportion of IAI cases identified by urinalysis alone (>10 RBC/HPF) and not by examination findings or other laboratory results. A secondary objective was to quantify potential delay in disposition while waiting for urinalysis results, calculated as the length of time between receiving skeletal survey and laboratory results and receiving urinalysis results. Six hundred thirteen subjects met our inclusion criteria; two subjects had hematuria, one of whom had a urinary tract infection. The other was determined to have blood from a catheterized urine specimen. One subject was found to have an IAI. We further found that urinalysis was delayed for 78% of subjects and took a median of 93 [interquartile range, 46-153] minutes longer than imaging and/or laboratories. No subjects were diagnosed with abdominal trauma based on urinalysis during evaluation in the emergency department who would not have been identified by other standard testing. In addition, patients' disposition was delayed while waiting for urinalysis.

Validation of the PediBIRN-7 clinical prediction rule for pediatric abusive head trauma

BackgroundThe PediBIRN-7 clinical prediction rule incorporates the (positive or negative) predictive contributions of completed abuse evaluations to estimate abusive head trauma (AHT) probability after abuse evaluation. Applying definitional criteria as proxies for AHT and non-AHT ground truth, it performed with sensitivity 0.73 (95 % CI: 0.66–0.79), specificity 0.87 (95 % CI: 0.82–0.90), and ROC-AUC 0.88 (95 % CI: 0.85–0.92) in its derivation study. ObjectiveTo validate the PediBIRN-7's AHT prediction performance in a novel, equivalent, patient population. Participants and settingsConsecutive, acutely head-injured children <3 years hospitalized for intensive care across eight sites between 2017 and 2020 with completed skeletal surveys and retinal exams (N = 342). MethodsSecondary analysis of an existing, cross-sectional, prospective dataset, including assignment of patient-specific estimates of AHT probability, calculation of AHT prediction performance measures (ROC-AUC, sensitivity, specificity, predictive values), and completion of sensitivity analyses to estimate best- and worst-case prediction performances. ResultsApplying the same definitional criteria, the PediBIRN-7 performed with sensitivity 0.74 (95 % CI: 0.66–0.81), specificity 0.77 (95 % CI: 0.70–0.83), and ROC-AUC 0.83 (95 % CI: 0.78–0.88). The reduction in ROC-AUC was statistically insignificant (p = .07). Applying physicians' final consensus diagnoses as proxies for AHT and non-AHT ground truth, the PediBIRN-7 performed with sensitivity 0.73 (95 % CI: 0.66–0.79), specificity 0.87 (95 % CI: 0.82–0.90), and ROC-AUC 0.90 (95 % CI: 0.87–0.94). Sensitivity analyses demonstrated minimal changes in rule performance. ConclusionThe PediBIRN-7's overall AHT prediction performance has been validated in a novel, equivalent, patient population. Its patient-specific estimates of AHT probability can inform physicians' AHT-related diagnostic reasoning after abuse evaluation.

Improving access to child abuse evaluations through innovation & telemedicine

Many children and families do not have access to specialized pediatric health care, including child abuse pediatricians. Medical evaluations in cases of suspected child maltreatment including physical abuse, sexual abuse, and neglect are a critical component of the multidisciplinary team response to these concerns. We review the role of child abuse pediatricians in cases of suspected child maltreatment. We discuss the advantages and disadvantages of current models of care including co-location of child abuse specialists within children's advocacy centers, hospital-based medical evaluation programs and community-based clinics. We review barriers to universal and equitable access to specialized care. We then highlight the significance of telemedicine as an important tool for improving access to care for children who would not otherwise have access.

Evaluation of elder abuse in elderly patients presenting to an emergency department

With the increase in the elderly population worldwide, elder abuse and neglect cases are not increasing gradually. Elder abuse is not only physical abuse but also sexual, psychological, and economic. This study aimed to evaluate the findings of elderly individuals admitted to an emergency department for abuse and neglect. This study was performed on patients aged 65 years and older who were admitted to the emergency department of a tertiary care hospital. Between January 1, 2019 and January 4, 2019, a presurvey and the Hwalek-Sengstock Elder Abuse Screening Test (H-S/EAST) were administered. Among the elderly included in this study, 48.8% (n=240) were female and 51.2% (n=252) were male. The total scores of the general test were found to be statistically significantly higher (p&lt;0.05) in the elderly who were living alone, widowed, illiterate, unemployed, did not have children, came to the emergency department with trauma findings, had a history of more than one previous trauma, or who felt that they had recently been subjected to violence or physically, psychologically, or economically abused. It should be kept in mind that elderly patients admitted to an emergency department may suffer from elder abuse and neglect. Providing the right communication and appropriate environment to detect elder abuse is important for diagnosis, treatment, and rehabilitation.

Defining pediatric trauma center resource utilization: Multidisciplinary consensus-based criteria from the Pediatric Trauma Society.

Pediatric trauma triage and transfer decisions should incorporate the likelihood that an injured child will require pediatric trauma center (PTC) resources. Resource utilization may be a better basis than mortality risk when evaluating pediatric injury severity. However, there is currently no consensus definition of PTC resource utilization that encompasses the full scope of PTC services. Consensus criteria were developed in collaboration with the Pediatric Trauma Society (PTS) Research Committee using a modified Delphi approach. An expert panel was recruited representing the following pediatric disciplines: prehospital care, emergency medicine, nursing, general surgery, neurosurgery, orthopedics, anesthesia, radiology, critical care, child abuse, and rehabilitation medicine. Resource utilization criteria were drafted from a comprehensive literature review, seeking to complete the following sentence: "Pediatric patients with traumatic injuries have used PTC resources if they..." Criteria were then refined and underwent three rounds of voting to achieve consensus. Consensus was defined as agreement of 75% or more panelists. Between the second and third voting rounds, broad feedback from attendees of the PTS annual meeting was obtained. The Delphi panel consisted of 18 members from 15 institutions. Twenty initial draft criteria were developed based on literature review. These criteria dealt with airway interventions, vascular access, initial stabilization procedures, fluid resuscitation, blood product transfusion, abdominal trauma/solid organ injury management, intensive care monitoring, anesthesia/sedation, advanced imaging, radiologic interpretation, child abuse evaluation, and rehabilitative services. After refinement and panel voting, 14 criteria achieved the >75% consensus threshold. The final consensus criteria were reviewed and endorsed by the PTS Guidelines Committee. This study defines multidisciplinary consensus-based criteria for PTC resource utilization. These criteria are an important step toward developing a criterion standard, resource-based, pediatric injury severity metric. Such metrics can help optimize system-level pediatric trauma triage based on likelihood of requiring PTC resources. Diagnostic Test/Criteria; Level II.

SCAN for Abuse: Electronic Health Record-Based Universal Child Abuse Screening

BackgroundIdentification of physical abuse at the point of care without a systematic approach remains inherently subjective and prone to judgement error. This study examines the implementation of an electronic health record (EHR)-based universal child injury screen (CIS) to improve detection rates of child abuse. MethodsCIS was implemented in the EHR admission documentation for all patients age 5 or younger at a single medical center, with the following questions.1) “Is this patient an injured/trauma patient?”2) “If this is a trauma/injured patient, where did the injury occur?”A “Yes” response to Question 1 would alert a team of child abuse pediatricians and social workers to determine if a patient required formal child abuse clinical evaluation. Patients who received positive CIS responses, formal child abuse work-up, and/or reports to Child Protective Services (CPS) were reviewed for analysis. CPS rates from historical controls (2017–2018) were compared to post-implementation rates (2019–2021). ResultsBetween 2019 and 2021, 14,150 patients were screened with CIS. 286 (2.0 %) patients screened received positive CIS responses. 166 (58.0 %) of these patients with positive CIS responses would not have otherwise been identified for child abuse evaluation by their treating teams. 18 (10.8 %) of the patients identified by the CIS and not by the treating team were later reported to CPS. Facility CPS reporting rates for physical abuse were 1.2 per 1000 admitted children age 5 or younger (pre-intervention) versus 4.2 per 1000 (post-intervention). ConclusionsIntroduction of CIS led to increased detection suspected child abuse among children age 5 or younger. Level of EvidenceLevel II. Type of StudyStudy of Diagnostic Test

Natural Language Processing — A Surveillance Stepping Stone to Identify Child Abuse

ObjectiveWe aimed to refine a natural language processing (NLP) algorithm that identified injuries associated with child abuse and identify areas in which integration into a real-time clinical decision support (CDS) tool may improve clinical care. MethodsWe applied an NLP algorithm in “silent mode” to all emergency department (ED) provider notes between July 2021 and December 2022 (n = 353) at 1 pediatric and 8 general EDs. We refined triggers for the NLP, assessed adherence to clinical guidelines, and evaluated disparities in degree of evaluation by examining associations between demographic variables and abuse evaluation or reporting to child protective services. ResultsSeventy-three cases falsely triggered the NLP, often due to errors in interpreting linguistic context. We identified common false-positive scenarios and refined the algorithm to improve NLP specificity. Adherence to recommended evaluation standards for injuries defined by nationally accepted clinical guidelines was 63%. There were significant demographic differences in evaluation and reporting based on presenting ED type, insurance status, and race and ethnicity. ConclusionsAnalysis of an NLP algorithm in “silent mode” allowed for refinement of the algorithm and highlighted areas in which real-time CDS may help ED providers identify and pursue appropriate evaluation of injuries associated with child physical abuse.

Frequency of injuries in a voluntary program evaluating young children exposed to intimate partner violence

ObjectiveIntimate partner violence (IPV) affects 1 in 4 American women, and physical child abuse is reported to occur in 10–67 % of homes with IPV. Routine evaluation of physical abuse in IPV-exposed children is neither widespread nor informed by clinical guidelines. Thus, the true frequency of detectable injuries in IPV-exposed children remains unknown. The purpose of this study was to examine the frequency of injuries in children <3-years-old reported for IPV to a regional child protective services (CPS) office. MethodsIn this prospective observational study, we reviewed encounters of children whose caregivers agreed to an evaluation for injuries (physical exam and imaging, if indicated) from July 2019–June 2022. Children were included if: 1) a CPS investigator referred a child for evaluation for injuries (“non-acute” evaluation) or 2) a child presented immediately after an IPV incident (“acute” evaluation). ResultsOf 326 children <3-years-old reported to the CPS office after IPV exposure, 90 (27.6 %) were evaluated: 81(90 %) presented for a non-acute evaluation, and 21(23 %) were reported to have sustained trauma during the IPV event. Of the 90 children evaluated, 3 (3.3 %, 95 % CI 0.7–9.4) were found to have cutaneous injuries, fractures, and/or intracranial findings. Each was <6-months old and had an “acute” evaluation. ConclusionIn this study of children reported to CPS for IPV exposure, a small percentage was found to have injuries. A multi-center study that examines the frequency of and factors that increase the risk of abusive injuries in IPV-exposed children may ensure that testing targets children at highest risk.

Examining Cases of Child Physical Abuse Evaluations to Identify Opportunities to Improve Intimate Partner Violence Screening in Pediatric Emergency Departments.

The association between child maltreatment and intimate partner violence (IPV) is well supported. Universal IPV screening has been recommended by the American Academy of Pediatrics and the United States Preventative Task Force, and many children's hospitals have established screening protocols. However, the yield and best screening method in families undergoing a child physical abuse (PA) evaluation have not been fully explored. To determine if there is a discrepancy in IPV disclosures between universal IPV screening completed during pediatric emergency department (PED) triage ("triage screening") and IPV screening by a social worker ("social work screening") in families of children who were evaluated for PA. Caregivers of children who presented to an urban tertiary PED and underwent an evaluation for PA via a child abuse pediatrics consult. A retrospective chart review was completed. Data collection included: caregiver responses to both triage screening and social work screening, interview setting details and participants, the child's injuries, and details of the family's reported IPV experiences. Our study (N = 329) revealed that social work screening produced significantly more positive IPV disclosures than triage screening (14.0% vs. 4.3%, p < .001). Additionally, non-IPV violence concerns were identified in 35.7% (n = 5) of the positive triage screens, whereas social work screens had none. These results highlight the benefits of IPV screening by social work in high-risk scenarios, such as child PA evaluations, regardless of universal IPV screening results. Exploring differences between the two screening methods can inform decisions about screening protocols to improve IPV identification in high-risk populations.

The Impact of an Emergency Department Bruising Pathway on Disparities in Child Abuse Evaluation.

Previous research has shown racial, ethnic, and socioeconomic disparities in provider medical evaluations and reporting to child protective services (CPS) and law enforcement (LE) for cases of suspected child physical abuse. Our hospital standardized evaluation and reporting of high-risk bruising using a clinical pathway. We aimed to assess whether standardization impacted disparity. We performed a retrospective observational study including children evaluated in the emergency department who had a social work consult for concern for child abuse or neglect between June 2012 and December 2019. From this group, we identified children with high-risk bruising. We compared outcomes (receipt of skeletal survey, CPS report, or LE report) before and after implementation of a standard bruising evaluation pathway to determine how the intervention changed practice among various racial, ethnic, and socioeconomic groups. During the study period, 2129 children presented to the ED and received a social work consult for child abuse or neglect. Of these, 333 had high-risk bruising. Children without private insurance had a higher risk of having a CPS (adjusted relative risk, 1.32; 95% confidence interval, 1.09-1.60) or LE (adjusted relative risk, 1.48; 95% confidence interval, 1.11-1.97) report prepathway, but not after pathway implementation. No significant associations were seen for race or ethnicity. A standardized clinical pathway for identification and evaluation of high-risk bruising may help to decrease socioeconomic disparities in reporting high-risk bruising. Larger studies are needed to fully evaluate disparities in assessment and reporting of child abuse.

Efficacy of Child Abuse Evaluations for Infants With Possible Subdural Hemorrhage Identified on Cranial Ultrasound Completed for Macrocephaly.

Abusive head trauma (AHT) is a significant cause of morbidity and mortality for infants. Determining when to pursue a complete physical abuse evaluation can be difficult, especially for nonspecific findings or when a child appears clinically well. This retrospective study of 7 cases sought to describe the presentation, evaluation, and diagnoses for infants with abnormal subdural collections identified on cranial ultrasound for macrocephaly, and to determine how frequently AHT is diagnosed. The results of this study showed that while each patient presented due to asymptomatic macrocephaly, the extent of the workup varied greatly. In addition, no infants had suspicious injuries for abuse during the initial evaluation or the year following. In summary, among the 7 patients seen for asymptomatic macrocephaly with possible subdural hemorrhage, there were very inconsistent child abuse workups. There needs to be a standardized clinical guideline for this specific patient population involving a child abuse pediatric evaluation.

Risk factors associated with suicide attempts in patients with schizophrenia: an observational study from South India

BackgroundAs a suicide attempt is an important predictor of suicide in patients with schizophrenia, it is essential to assess risk factors to prevent suicides. This study aimed to assess the clinical factors and reasons associated with suicide attempts in patients with schizophrenia. A chart review of the patients diagnosed with schizophrenia from January 2014 to December 2019 was conducted at a tertiary hospital in South India. Socio-demographic and clinical details were extracted using a pro-forma. Details of suicide attempts were collected for all the patients.ResultsOut of 300 patients, 54 patients (18%) had at least one suicide attempt. Comorbid depression (p < 0.001,φ = 0.32) and substance abuse (p = 0.043,φ = 0.1) were significantly more in patients with suicide attempts. The group with suicide attempts had a significantly higher record of poor treatment compliance (p = 0.001, φ = 0.19). The most common methods of suicide attempts were drug overdose and consumption of poison (20.3% each). The most common reasons were the presence of depressive symptoms (24.1%) and delusions (24.1%). Hallucinations contributed to 22.2% of the suicide attempts.ConclusionsSuicide attempts were common among schizophrenia patients in up to 18%. Evaluation and early treatment of depressive symptoms and substance abuse and improvement of treatment adherence may help prevent suicide in patients with schizophrenia.

Evaluation of Drug Abuse on Brain Function using Power Spectrum Analysis of Electroencephalogram Signals in Methamphetamine, Opioid, Cannabis, and Multi-Drug Abuser Groups

The effect of different types of substances on brain function is still challenging; however, many studies have shown the functional and structural damage to the brain under influence of substance abuse. This study aimed to quantitatively compare the effect of opioid (Op), methamphetamine (Meth), cannabis (Can), and simultaneous methamphetamine and opioid (Multi-Drug (MD)) abuse on brain function. Furthermore, the impacts of pure Op and Meth abuse were considered with simultaneous substance abuse. In this descriptive study, the electroencephalogram (EEG) signal was recorded from 52 participants in the Meth, Op, Can, and MD abusers, and the Healthy Control (HC) groups at rest state. EEG data were analyzed on the frequency domain with electrode-based, cortex-based, and hemisphere-based approaches. However, the power spectrum in the delta band in the Op group, the gamma band in the Can group, and the gamma and beta bands in the MD group more significantly increased compared to the HC group, the power spectrum values in the Meth group reduced in the alpha, beta, and gamma bands. Moreover, the power spectrum values in the MD group more significantly higher than the Meth and Op groups in the beta and gamma bands. Since substance abuse in different types caused various changes in frequency components, the different power spectrum bands analysis in abusers can be reasonable to apply as a biomarker to detect the drug types.

Benign enlargement of the subarachnoid spaces and subdural collections—when to evaluate for abuse

In infants without a history of trauma, subdural haemorrhages should raise the concern for an abusive head injury, particularly when they are associated with bridging vein clotting/rupture or with septations. However, non-haemorrhagic, fluid-appearing subdural collections (also called hygromas) may also be the result of abuse. Subdural collections have also been uncommonly observed in patients with benign enlargement of the subarachnoid spaces (BESS) and a few large-scale studies accurately investigate the incidence and the significance. Currently, there is a wide variation of practices in children with BESS and subdural collections. Due to the social risks associated with abuse evaluation and the perceived risk of radiation exposure, there might be a reluctance to fully evaluate these children in some centres. The diagnosis of physical abuse cannot be substantiated nor safely excluded in infants with BESS and subdural collection(s), without investigation for concomitant traumatic findings. The exact prevalence of occult injuries and abuse in these infants is unknown. In macrocephalic infants with subdural collections and imaging features of BESS, thorough investigations for abuse are warranted and paediatricians should consider performing full skeletal surveys even when fundoscopy, social work consult, and detailed clinical evaluation are unremarkable.