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Purpose: To assess which pediatric patients experiencing persistent post-concussive symptoms (PCS) benefit most from multidisciplinary treatment including specialists in Neurology, Neuropsychology, Physical Therapy, and Athletic Training, and to explore the effectiveness of this approach.Methods: A retrospective chart review of 56 adolescents 10-20 years old (M = 15.0 ± 2.1) receiving multidisciplinary care for PCS (>30 days) was conducted.Results: Systolic blood pressure and Body Mass Index predicted time to concussion resolution (p < .05), such that higher values were associated with slower resolution. PCS scores significantly decreased between participants' initial and final clinic visits, p < .01, and among the 25 participants for whom pre-intervention PCS scores were available, symptom severity scores significantly declined following multidisciplinary intervention compared to pre-referral values (p < .01).Conclusions: Exploratory analyses reveal that multidisciplinary treatment is a promising approach for reducing symptoms among adolescents with PCS, and that those with greater levels of physical fitness may benefit most.

The COVID-19 pandemic has changed healthcare utilization patterns and clinical practice, including pediatric mTBI evaluation and management. Providers treating pediatric mTBI, including neuropsychologists, have a unique role in evaluating and managing an already complex injury in the context of the COVID-19 pandemic with limited empirically based guidelines. In the present paper, we review usual, evidence-based pediatric mTBI care, highlight changes experienced by healthcare providers since the onset of the pandemic, and provide possible considerations and solutions. Three primary challenges to usual care are discussed, including changes to post-injury evaluation, management, and treatment of persistent symptoms. Changing patterns of healthcare utilization have created unique differences in mTBI identification and evaluation, including shifting injury frequency and mechanism, reluctance to seek healthcare, and increasing access to telemedicine. Typical injury management has been compromised by limited access to usual systems/activities (i.e., school, sports, social/leisure activities). Patients may be at higher risk for prolonged recovery due to pre-injury baseline elevations in acute and chronic stressors and reduced access to rehabilitative services targeting persistent symptoms. Considerations and solutions for addressing each of the three challenges are discussed. Neuropsychologists and other pediatric healthcare providers will need to continue to flexibly adapt to the changing needs of youth recovering from mTBI through the duration of the pandemic and beyond. Consistent with pre-pandemic consensus statements, neuropsychologists remain uniquely qualified to evaluate and manage mTBI and provide an increasingly integral role as members of multidisciplinary teams in the context of the global pandemic.Abbreviations: AAP: American Academy of Pediatrics; CDC: Centers for Disease Control and Prevention; COVID-19: coronavirus disease 19; ED: emergency department; mTBI: Mild traumatic brain injury.

Aim: This pilot study explored whether childhood stroke impairs performance on theory of mind (ToM) tasks and whether ToM task performance correlates with resting state connectivity in brain regions linked with social cognition. Method: We performed a case-control study of 10 children with stroke and 10 age- and gender-matched controls. They completed 2 ToM tasks, and resting state connectivity was measured with functional magnetic resonance imaging (MRI). Results: Children with stroke performed worse than controls on conative ToM tasks. Resting state connectivity in the central executive network was significantly higher and connectivity between right and left inferior parietal lobules was significantly decreased in children with stroke. Resting state activity and ToM performance were not significantly correlated. Interpretation: Childhood stroke results in poorer performance on specific ToM tasks. Stroke is associated with changes in resting state connectivity in networks linked with social cognition including ToM. Although the basis for these changes in connectivity is not well understood, these results may provide preliminary insights into potential mechanisms affecting social cognition after stroke. The findings suggest that further study of the effect of childhood stroke on network connectivity may yield insights as to how stroke affects cognitive functions in children.

Objective To examine changes in depression and distress in parents of adolescents receiving family-problem-solving therapy (F-PST) following traumatic brain injury. Method Families of adolescents hospitalized for moderate to severe traumatic brain injury were randomized to face-to-face F-PST (34), therapist-guided online F-PST (56), or self-guided online F-PST (60). Outcomes were assessed pretreatment and 6 and 9 months later. Parents rated depression and distress on the Center for Epidemiological Studies Depression Scale and the Brief Symptom Inventory, respectively. Mixed modeling was used to examine changes over time and treatment moderators. Results The therapist-guided online group had significant reductions in parental depression over time. Analyses of slopes of recovery revealed differential improvement on the Center for Epidemiological Studies Depression Scale between the 2 online groups, with no significant change in depressive symptoms following self-guided F-PST. On the Brief Symptom Inventory Global Severity Index, the therapist-guided online group reported significant improvement from baseline to 6 months that was maintained at 9 months. The face-to-face and self-guided online groups reported significant reductions in distress between 6 and 9 months with corresponding large effect sizes. Differences on the Center for Epidemiological Studies Depression Scale between therapist-guided and self-guided online groups at the 9-month follow-up were more pronounced in families of lower socioeconomic status, t103 = -2.87; P = .005. Conclusions Findings provide further support for the utility of therapist-guided online F-PST in reducing parental depression and distress following pediatric traumatic brain injury and offer limited evidence of the efficacy of self-guided online treatment for these outcomes. Families of lower socioeconomic status may benefit more from therapist involvement.

Objective To quantify changes in segmented brain volumes over 12 months in children with mucopolysaccharidosis types IIIA and IIIB (MPS IIIA and IIIB). Methods In order to establish suitable outcome measures for clinical trials, twenty-five children greater than 2 years of age were enrolled in a prospective natural history study of MPS IIIA and IIIB at Nationwide Children's Hospital. Data from sedated non-contrast brain 3 T MRIs and neuropsychological measures were reviewed from the baseline visit and at 12-month follow-up. No intervention beyond standard clinical care was provided. Age- and sex-matched controls were gathered from the National Institute of Mental Health Data Archive. Automated brain volume segmentation with longitudinal processing was performed using FreeSurfer. Results Of the 25 subjects enrolled with MPS III, 17 children (4 females, 13 males) completed at least one MRI with interpretable volumetric data. The ages ranged from 2.8 to 13.7 years old (average 7.2 years old) at enrollment, including 8 with MPS IIIA and 9 with MPS IIIB. At baseline, individuals with MPS III demonstrated reduced cerebral white matter and corpus callosum volumes, but greater volumes of the lateral ventricles, cerebellar cortex, and cerebellar white matter compared to controls. Among the 13 individuals with MPS III with two interpretable MRIs, there were annualized losses or plateaus in supratentorial brain tissue volumes (cerebral cortex −42.10 ± 18.52 cm3/year [mean ± SD], cerebral white matter −4.37 ± 11.82 cm3/year, subcortical gray matter −6.54 ± 3.63 cm3/year, corpus callosum −0.18 ± 0.62 cm3/yr) and in cerebellar cortex (−0.49 ± 12.57 cm3/year), with a compensatory increase in lateral ventricular volume (7.17 ± 6.79 cm3/year). Reductions in the cerebral cortex and subcortical gray matter were more striking in individuals younger than 8 years of age. Greater cerebral cortex volume was associated with higher fine and gross motor functioning on the Mullen Scales of Early Learning, while greater subcortical gray matter volume was associated with higher nonverbal functioning on the Leiter International Performance Scale. Larger cerebellar cortex was associated with higher receptive language performance on the Mullen, but greater cerebellar white matter correlated with worse adaptive functioning on the Vineland Adaptive Behavioral Scales and visual problem-solving on the Mullen. Conclusions Loss or plateauing of supratentorial brain tissue volumes may serve as longitudinal biomarkers of MPS III age-related disease progression compared to age-related growth in typically developing controls. Abnormally increased cerebellar white matter in MPS III, and its association with worse performance on neuropsychological measures, suggest the possibility of pathophysiological mechanisms distinct from neurodegeneration-associated atrophy that warrant further investigation.

OBJECTIVE To evaluate the feasibility and potential benefits of a manualized, brief cognitive-behavioral therapy-based intervention program for children and adolescents with persistent postconcussive symptoms. SETTING Two outpatient pediatric concussion programs in the United States. PARTICIPANTS Patients aged 8 to 17 years who sustained concussions between 2 and 12 months prior to enrollment. DESIGN Pre-/postretrospective study. MAIN MEASURES SCAT-3; HBI; PedsQL 4.0 Generic Core Scales; and RCADS. RESULTS Thirty children and adolescents completed the treatment program. Self- and parent-reported postconcussive symptoms, quality of life, and internalizing symptoms significantly improved with treatment. Mixed-effects models revealed a significant decline in self-reported postconcussive symptoms across treatment sessions, a = -2.07, SE = 0.25, P < .001. The largest change occurred between sessions 2 and 3, following the session focusing on concussion psychoeducation and sleep hygiene (estimated mean change between sessions 2 and 3 = -4.72, P < .0001). CONCLUSIONS Our findings indicate that a 6-session manualized cognitive behavioral intervention is feasible to initiate in an outpatient clinic 1 to 12 months following a pediatric mild traumatic brain injury. With a manualized format, clinicians at most levels of training should be able to implement this treatment manual and flexibly adapt as needed when working with children and adolescents who are experiencing delayed symptom recovery following concussion.

OBJECTIVE: To examine the comparative effectiveness of three modes of family problem-solving therapy (F-PST): therapist-guided online, self-guided online, and face-to-face. SETTING: Four children’s hospitals and a general hospital with pediatric commitment. PARTICIPANTS: 150 adolescents aged 14 to 18 years, previously hospitalized with traumatic brain injury (TBI), and evidence of behavior problems at enrollment. DESIGN: Multicenter, randomized clinical trial (RCT). MAIN MEASURES: Behavior Rating Inventory of Executive Function (BRIEF) Global Executive Composite (GEC), Behavior Regulation Index (BRI), and Metacognitive Index (MI) and Strengths and Difficulties Questionnaire total (SDQ) at baseline and 6 and 9 months later. RESULTS: Mixed model intention-to-treat analyses of comparative effectiveness failed to reveal statistically significant differences among treatment groups. At six months, parent BRIEF-GEC improved for the therapist-guided and self-guided, online groups. Effects remained significant and increased in magnitude at 9 months for the self-guided online group. Scores for the Self-guided online group significantly improved from baseline to 9 months on the SDQ Total. CONCLUSIONS: This comparative effectiveness study supports the utility of both self- and therapist-guided online F-PST in improving executive function behaviors in adolescents following TBI. Further work regarding clinical implementation and how best to integrate telehealth with ongoing rehabilitation care is warranted.

Introduction: The objective of this manuscript is to describe the methodology that will be used to test the comparative effectiveness, feasibility, and acceptability of three formats of family problem solving therapy (F-PST) for improving functional outcomes of complicated mild to severe adolescent TBI. Methods: Three-arm comparative effectiveness, randomized clinical trial (RCT) design. We describe the protocol of a three-arm RCT comparing the effectiveness of three modalities of F-PST to reduce executive dysfunction and behavior problems following TBI in adolescence. The RCT will compare the relative effectiveness among face-to-face; online and self-directed; and therapist-supported online modes of treatment. Ethics and dissemination: It is anticipated that findings from this work will inform future clinical care practices, with implications for treatment of other patient populations of youth with psychological symptoms arising from neurological conditions. Institutional review board approval will be obtained from all sites prior to commencement of the study. Clinical Trials Registration: NCT:02368366, Keywords: Pediatric traumatic brain injury, Telehealth, Problem solving, Behavior, Executive function

Objective Adolescent traumatic brain injury (TBI) contributes to deficits in executive functioning and behavior, but few evidence-based treatments exist. We conducted a randomized clinical trial comparing Teen Online Problem Solving with Family (TOPS-Family) with Teen Online Problem Solving with Teen Only (TOPS-TO) or the access to Internet Resources Comparison (IRC) group. Methods Children, aged 11 to 18 years, who sustained a complicated mild-to-severe TBI in the previous 18 months were randomly assigned to the TOPS-Family (49), TOPS-TO (51), or IRC group (52). Parent and self-report measures of externalizing behaviors and executive functioning were completed before treatment and 6 months later. Treatment effects were examined using linear regression models, adjusting for baseline symptom levels. Age, maternal education, and family stresses were examined as moderators. Results The TOPS-Family group had lower levels of parent-reported executive dysfunction at follow-up than the TOPS-TO group, and differences between the TOPS-Family and IRC groups approached significance. Maternal education moderated improvements in parent-reported externalizing behaviors, with less educated parents in the TOPS-Family group reporting fewer symptoms. On the self-report Behavior Rating Inventory of Executive Functions, treatment efficacy varied with the level of parental stresses. The TOPS-Family group reported greater improvements at low stress levels, whereas the TOPS-TO group reported greater improvement at high-stress levels. The TOPS-TO group did not have significantly lower symptoms than the IRC group on any comparison. Conclusion Findings support the efficacy of online family problem solving to address executive dysfunction and improve externalizing behaviors among youth with TBI from less advantaged households. Treatment with the teen alone may be indicated in high-stress families.

Conventional neuroimaging is not recommended for the routine diagnosis of concussion, but some patients with concussion undergo computed tomography (CT) or magnetic resonance imaging (MRI). The objective of this study was to explore the clinical factors that predict neuroimaging utilization in concussion.Concussion-related CT and MRI data were analysed from 1953 patients, aged 10-19 years, who presented to a sports concussion clinic within 30 days of injury.The majority of CT scans (n = 193) were obtained during the acute concussion period (mean = 2.7 days post-concussion), whereas MRI scans (n = 134) were ordered later during recovery (mean = 39.4 days post-concussion). Predictors of CT utilization included loss of consciousness, amnesia and vomiting (all p0.001). Prior concussion (p = 0.002) and continued participation in activity after injury (p = 0.03) predicted greater MRI utilization. Neuroimaging with either CT (p = 0.024, hazard ratio = 1.2) or MRI (p0.001, hazard ratio = 2.75) was associated with prolonged symptoms. Only 3.1% of CTs and 1.5% of MRIs demonstrated signs of traumatic brain injury.Several clinical factors predict neuroimaging utilization in patients with concussion. CT is generally used acutely, while MRI is used in the sub-acute and chronic post-concussion periods. In a sports concussion clinic, delayed neuroimaging has limited clinical yield.

OBJECTIVE To examine changes in quality of life (QoL) in adolescents receiving family problem-solving therapy (F-PST) following traumatic brain injury (TBI). METHOD Adolescents hospitalized for moderate-to-severe TBI were randomized to 1 of 3 ten-session, 6-month long treatments: face-to-face F-PST (n = 34), therapist-guided online F-PST (n = 56), and self-guided online F-PST (n = 60). Participants included 96 boys and 54 girls, of whom 124 were White and 6 were Hispanic. Outcomes were assessed pretreatment and 6 and 9 months later. Adolescents and parents rated adolescent QoL and TBI-related symptoms on the PedsQL and Health and Behavior Inventory (HBI), respectively. We used mixed modeling to examine changes over time and moderators of treatment efficacy. RESULTS Therapist- and self-guided online groups demonstrated improvements in parent-proxy QoL from baseline to 9 months, Cohen's d = 0.75; p = .004 and Cohen's d = 1.30; p < .001, respectively. The face-to-face group had poorer parent-proxy QoL at 6 months (M = 62, SE = 3.4) than either the therapist- (M = 70.9, SE = 2.8) or self-guided online group (M = 71.1, SE = 2.6). There were no changes or group differences in self-reported QoL over time. Similar findings were observed on the HBI. Differential treatment effects on parent-proxy outcomes were found in boys versus girls and in those from single versus 2-parent households. Improvements in parent-proxy HBI ratings mediated QoL improvements. CONCLUSIONS Both online treatments, but not face-to-face F-PST, were associated with clinical improvements, raising questions about our current delivery paradigm. Individual and family moderators of treatment efficacy underscore the potential of personalized treatment. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

OBJECTIVEDespite perioperative risks, epilepsy surgery represents a legitimate curative or palliative treatment approach for children with drug-resistant epilepsy (DRE). Several factors characterizing infants and toddlers with DRE create unique challenges regarding optimal evaluation and management. Epilepsy surgery within children < 3 years of age has received moderate attention in the literature, including mainly case series and retrospective studies. This article presents a systematic literature review and explores multidisciplinary considerations for the preoperative evaluation and surgical management of infants and toddlers with DRE.METHODSThe study team conducted a systematic literature review based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, targeting studies that investigated children < 3 years of age undergoing surgical treatment of DRE. Using the PubMed database, investigators selected peer-reviewed articles that reported seizure outcomes with or without developmental outcomes and/or perioperative complications. Studies were eliminated based on the following exclusion criteria: sample size < 5 patients; and inclusion of patients > 3 years of age, when demographic and outcomes data could not be separated from the cohort of patients < 3 years of age.RESULTSThe study team identified 20 studies published between January 1990 and May 2017 that satisfied eligibility criteria. All selected studies represented retrospective reviews, observational studies, and uncontrolled case series. The compiled group of studies incorporated 465 patients who underwent resective or disconnective surgery (18 studies, 444 patients) or vagus nerve stimulator insertion (2 studies, 21 patients). Patient age at surgery ranged between 28 days and 36 months, with a mean of 16.8 months (1.4 years).DISCUSSIONThe study team provided a detailed summary of the literature review, focusing on the etiologies, preoperative evaluation, surgical treatments, seizure and developmental outcomes, and potential for functional recovery of infants and toddlers with DRE. Additionally, the authors discussed special considerations in this vulnerable age group from the perspective of multiple disciplines.CONCLUSIONSWhile presenting notable challenges, pediatric epilepsy surgery within infants and toddlers (children < 3 years of age) offers significant opportunities for improved seizure frequency, neuro-cognitive development, and quality of life. Successful evaluation and treatment of young children with DRE requires special consideration of multiple aspects related to neurological and physiological immaturity and surgical morbidity.

Objective To characterize treatment preferences for delivery of family problem-solving treatment (F-PST) to adolescents with behavioral challenges following traumatic brain injury (TBI) and to examine associations with attrition, adherence, satisfaction, and efficacy. Method Adolescents who had been hospitalized for moderate to severe TBI were randomized to face-to-face F-PST (n = 34), therapist-guided online F-PST (n = 56), and self-guided online F-PST (n = 60). Adolescents and parents rated treatment convenience and anticipated benefit before group assignment. Sessions completed served as an index of adherence. Satisfaction was rated posttreatment. The Behavior Rating Inventory of Executive Function and Strengths and Difficulties Questionnaire were used to assess parent-reported behavioral concerns. Results Both parents and adolescents were more likely to agree or strongly agree that they anticipated self-guided online F-PST to be the most convenient relative to either of the therapist-involved approaches. Parents were also less likely to anticipate face-to-face treatment as most beneficial, relative to the two online treatments. Adolescent preferences were significantly related to attrition with 27% versus 13% dropout rates for those assigned to nonpreferred and preferred treatments, respectively. Parent and adolescent preferences before treatment were unrelated to post-intervention satisfaction, adherence, or improvements in parent-reported child behavior problems. Conclusions Online treatments are perceived favorably among adolescents with TBI and their parents. For adolescents, these pretreatment preferences influenced treatment completion. Poor correspondence between initial preferences and posttreatment satisfaction and benefit suggests that therapeutic experience more strongly influences ultimate satisfaction.

This study aims to evaluate the efficacy of a brief cognitive behavioral intervention program for children and adolescents experiencing persistent post-concussion symptoms. A total of 31 patients aged 10 to 18 years participated in the intervention. The median time since injury at treatment onset was 95 days though the range was large (23-720 days). Treatment was on average four sessions in duration. Sessions included concussion education, activity scheduling, sleep hygiene relaxation training, and cognitive restructuring. Outcomes were measured using symptom reports on the Sports Concussion Assessment Tool - Third Edition (SCAT-3) and parent-reported quality of life on the Pediatric Quality of Life Inventory (PedsQL). Mixed-effects models revealed that symptom reports did not decrease prior to the initiation of this treatment, though significant symptom improvement occurred following treatment. Quality of life scores significantly improved across domains, with the largest gains made in the emotional and school domains. Participant characteristics including age, sex, maternal education, and previous mental health problems were not found to be significantly related to treatment outcomes. Contrary to predictions, length of time since injury was not related to symptom changes. The primary limitation of this study is that it lacks randomization and an experimental control group. The results suggest that brief cognitive behavioral intervention may be a promising treatment for children and adolescents experiencing persistent post-concussive symptoms and warrants further investigation.

ObjectiveTo evaluate the effectiveness of a multidisciplinary treatment approach for adolescents experiencing prolonged recovery from concussion.BackgroundAlthough most youth recover from a concussion within 2–4 weeks, an estimated 14% of those injured remain symptomatic at 3 months post-injury. For those experiencing protracted recovery, the 2017 Berlin Concussion in Sport Group Consensus Statement recommends multidisciplinary collaborative care. While recent research utilizing progressive aerobic exercise among adolescents with concussion has shown promise for reduction in symptom burden, limited evidence exists for multidisciplinary care.Design/MethodsParticipants included 39 adolescents (77% female, 87% Caucasian) referred to the Nationwide Children’s Hospital Complex Concussion Clinic. All patients included had persistent (≥30 days post-injury) post-concussion symptoms (SCAT-5 symptom score ≥10). The sample ranged in age from 11-20 years (mean = 15.0, SD = 2.0) and median days since injury was 60 (range = 30–161). 31% of participants had a history of one or more previous concussions, 54% had a history of anxiety or depression, and 26% had a history of ADHD or a learning disorder. The multidisciplinary treatment included sessions with Neurology (mean number of sessions = 2.5), Neuropsychology (mean = 2.1), Physical Therapy (mean = 3.6), and Athletic Training sessions involving graded physical exercise (mean = 4.0), with an average treatment duration of 57.4 days. SCAT-5 symptom rating scales were completed at each visit.ResultsSymptom burden among participants significantly decreased between their initial visit (mean = 49.6, SD = 19.2) and final exercise session (mean = 12.8, SD = 14.1); p < 0.001. Gender did not predict symptom ratings at treatment onset, though males (mean = 5.6) had significantly lower symptom scores than females (mean = 15.0) at their final visit (p < 0.05). Demographic factors and premorbid psychological history did not predict rate of symptom improvement.ConclusionsHigh rates of premorbid psychological problems are evident in children referred for treatment of PCS. Multidisciplinary care involving graded aerobic exercise and psychological intervention shows promise, though specific factors associated with treatment response remain to be elucidated.

Objective: To examine the relative contributions of injury characteristics and noninjury child and family factors as predictors of postconcussive symptoms (PCS) following mild traumatic brain injury (TBI) in children. Method: Participants were 8- to 15-year-old children, 186 with mild TBI and 99 with mild orthopedic injuries (OI). Parents and children rated PCS shortly after injury and at 1, 3, and 12 months postinjury. Hierarchical regression analyses were conducted to predict PCS from (1) demographic variables; (2) premorbid child factors (WASI IQ; WRAT-3 Reading; Child Behavior Checklist; ratings of preinjury PCS); (3) family factors (Family Assessment Device General Functioning Scale; Brief Symptom Inventory; and Life Stressors and Social Resources Inventory); and (4) injury group (OI, mild TBI with loss of consciousness [LOC] and associated injuries [AI], mild TBI with LOC but without AI, mild TBI without LOC but with AI, and mild TBI without LOC or AI). Results: Injury group predicted parent and child ratings of PCS but showed a decreasing contribution over time. Demographic variables consistently predicted symptom ratings across time. Premorbid child factors, especially retrospective ratings of premorbid symptoms, accounted for the most variance in symptom ratings. Family factors, particularly parent adjustment, consistently predicted parent, but not child, ratings of PCS. Conclusions: Injury characteristics predict PCS in the first months following mild TBI but show a decreasing contribution over time. In contrast, noninjury factors are more consistently related to persistent PCS. (PsycINFO Database Record (c) 2013 APA, all rights reserved). Language: en

Obstructive sleep apnea (OSA) is a nocturnal respiratory disorder associated with cognitive and behavioral sequelae, including impairments in executive functioning (EF). Previous literature has focused on “cool” EF, meaning abilities such as working memory and planning that do not involve affective control requirements. Little is known about the impact OSA may have on “hot” EF that involves regulation of affect and risk-related decision-making, and that may be particularly salient during adolescence, when these skills are rapidly developing. This study examined performance on the Iowa Gambling Task (IGT), a task believed to assess aspects of “hot” EF, in overweight adolescents at risk for OSA. Consistent with hypotheses, individuals without OSA made more beneficial decisions on the IGT over time, but participants with OSA did not benefit from feedback and continued to make choices associated with higher initial rewards, but greater long-term losses. The relationship between developmental level and IGT performance was moderated by OSA status. Individuals with OSA did not demonstrate the expected developmental gains in performance during the IGT. This finding suggests that OSA may impact the development of critical aspects of EF, or at least the expression of these skills during the developmentally important period of adolescence. (JINS, 2012, 18, 481–489)

OBJECTIVE The primary aim of the study was to investigate the relationship among executive functioning, diabetes treatment adherence, and glycemic control. RESEARCH DESIGN AND METHODS Two hundred and thirty-five children with type 1 diabetes and their primary caregivers were administered the Diabetes Self-Management Profile to assess treatment adherence. Executive functioning was measured using the Behavior Rating Inventory of Executive Functioning and glycemic control was based on A1C. RESULTS Structural equation modeling indicated that a model in which treatment adherence mediated the relationship between executive functioning and glycemic control best fit the data. All paths were significant at P < 0.01. CONCLUSIONS These results indicate that executive functioning skills (e.g., planning, problem-solving, organization, and working memory) were related to adherence, which was related to diabetes control. Executive functioning may be helpful to assess in ongoing clinical management of type 1 diabetes.

High rates of asthma treatment nonadherence have been reported, particularly in economically disadvantaged African American youth. The relationship between adherence to combined medication treatment and asthma outcomes has potential clinical significance but is not well understood. Using electronic monitoring, we describe the pattern of adherence to daily corticosteroid (fluticasone) and leukotriene receptor antagonist (montelukast) medication over the course of 1 year in a population of African American youth with moderate to severe asthma. On average, adherence to montelukast was higher than adherence to fluticasone (p0.01); however, for both medications, adherence rates significantly declined over the course of the study. After 1 year, participants took only 31% of prescribed doses of montelukast and 23% of prescribed doses of fluticasone. The decline in adherence to both fluticasone (p0.05) and montelukast (p0.001) was related to increased healthcare utilization. Furthermore, asthma symptom ratings were related montelukast (p0.001), but not fluticasone adherence. These results suggest that adherence promotion intervention strategies are warranted to improve health-related outcomes in families who are at-risk for treatment nonadherence.

Objectives The primary aims of the study were to: (a) describe the trajectories of adherence to daily inhaled corticosteroid (ICS) medication for a year in economically disadvantaged, African-American youth with asthma based on growth curve modeling; and (b) test the relationship of treatment adherence to symptom control, quick-relief medication, and healthcare utilization. Methods This prospective study measured adherence to daily ICS treatment using electronic monitoring in 92 children and adolescents with moderate to severe asthma for 9–12 months and assessed clinical outcomes, including asthma-related symptoms, quick-relief medication, and healthcare utilization. Results Youth showed a decrement in treatment adherence to less than half of prescribed corticosteroid treatment over the course of the study, which related to increased healthcare utilization (p < .04), but not to asthma symptoms or albuterol use. Conclusion Economically disadvantaged youth with asthma demonstrate high rates of chronic nonadherence that warrant identification and intervention to reduce asthma-related healthcare utilization.

Partial seizures produce increased cerebral blood flow in the region of seizure onset. These regional cerebral blood flow increases can be detected by single photon emission computed tomography (ictal SPECT), providing a useful clinical tool for seizure localization. However, when partial seizures secondarily generalize, there are often questions of interpretation since propagation of seizures could produce ambiguous results. Ictal SPECT from secondarily generalized seizures has not been thoroughly investigated. We analysed ictal SPECT from 59 secondarily generalized tonic–clonic seizures obtained during epilepsy surgery evaluation in 53 patients. Ictal versus baseline interictal SPECT difference analysis was performed using ISAS (http://spect.yale.edu). SPECT injection times were classified based on video/EEG review as either pre-generalization, during generalization or in the immediate post-ictal period. We found that in the pre-generalization and generalization phases, ictal SPECT showed significantly more regions of cerebral blood flow increases than in partial seizures without secondary generalization. This made identification of a single unambiguous region of seizure onset impossible 50% of the time with ictal SPECT in secondarily generalized seizures. However, cerebral blood flow increases on ictal SPECT correctly identified the hemisphere (left versus right) of seizure onset in 84% of cases. In addition, when a single unambiguous region of cerebral blood flow increase was seen on ictal SPECT, this was the correct localization 80% of the time. In agreement with findings from partial seizures without secondary generalization, cerebral blood flow increases in the post-ictal period and cerebral blood flow decreases during or following seizures were not useful for localizing seizure onset. Interestingly, however, cerebral blood flow hypoperfusion during the generalization phase (but not pre-generalization) was greater on the side opposite to seizure onset in 90% of patients. These findings suggest that, with appropriate cautious interpretation, ictal SPECT in secondarily generalized seizures can help localize the region of seizure onset.

Summary: Purpose: Regions of seizure onset and propagation in human generalized tonic–clonic seizures are not well understood. Cerebral blood flow (CBF) measurements with single photon emission computed tomography (SPECT) during electroconvulsive therapy (ECT)-induced seizures provide a unique opportunity to investigate seizure onset and propagation under controlled conditions. Methods: ECT stimulation induces a typical generalized tonic–clonic seizure, resembling spontaneous generalized seizures in both clinical and electroencephalogram (EEG) manifestations. Patients were divided into two groups based on timing of ictal (during seizure) SPECT tracer injections: 0 s after ECT stimulation (early group), and 30 s after ECT (late group). Statistical parametric mapping (SPM) was used to determine regions of significant CBF changes between ictal and interictal scans on a voxel-by-voxel basis. Results: In the early injection group, we saw increases near the regions of the bitemporal stimulating electrodes as well as some thalamic and basal ganglia activation. With late injections, we observed increases mainly in the parietal and occipital lobes, regions that were quiescent 30 s prior. Significant decreases occurred only at the later injection time, and these were localized to the bilateral cingulate gyrus and left dorsolateral frontal cortex. Conclusions: Activations in distinct regions at the two time points, as well as sparing of intermediary brain structures, suggest that ECT-induced seizures propagate from the site of initiation to other specific brain regions. Further work will be needed to determine if this propagation occurs through cortical–cortical or cortico-thalamo-cortical networks. A better understanding of seizure propagation mechanisms may lead to improved treatments aimed at preventing seizure generalization.

To identify the clinical factors that influence the duration of postconcussion symptoms among youth referred to a sports concussion clinic.A retrospective cohort study was conducted to evaluate several potential predictors of symptom duration via a Cox proportional hazards analyses. The individual postconcussion symptom scores were highly correlated, so these symptoms were analyzed in the statistical model as coefficients derived from principal component analyses.Among 1953 youth with concussion, 1755 (89.9%) had dates of reported symptom resolution. The remainder (10.1%) were lost to follow-up and censored. The median time to recovery was 18 days (range 1-353 days). By 30 days, 72.6% had recovered; by 60 days, 91.4% had recovered; and by 90 days, 96.8% had recovered. Several variables in a multivariate Cox model predicted postconcussion symptom duration: female sex (P .001, hazard ratio [HR] = 1.28), continued activity participation (P = .02, HR = 1.13), loss of consciousness (P = .03, HR = 1.18), anterograde amnesia (P = .04, HR = 1.15), premorbid headaches (P = .03, HR = 1.15), symptom components from the day of concussion (emotion, P = .03, HR = 1.08), and the day of clinic evaluation (cognitive-fatigue, P .001, HR = 1.22; cephalalgic, P .001, HR = 1.27; emotional, P = .05, HR = 1.08; arousal-stimulation, P = .003, HR = 1.1). In univariate analyses, greater symptom scores generally predicted longer symptom durations. Worsening of symptoms from the day of concussion to the day of clinic evaluation also predicted longer recovery (P .001, HR = 1.59).Several factors help to predict protracted postconcussion symptom durations among youth referred to a sports concussion clinic.

Objective The term “post-traumatic migraine” (PTM) has been used to describe post-traumatic headaches (PTHs) that have associated migraine features, but studies of this relationship are lacking. The objective of the present study was to determine whether PTH correlates strongly with migraine symptoms among youth with concussion. Methods Twenty-three symptoms were analyzed from a retrospective cohort of 1953 pediatric patients with concussion. A principal component analysis (PCA) with oblique Promax rotation was conducted to explore underlying symptom relationships in the full cohort and in subcohorts stratified by the presence ( n = 414) or absence ( n = 1526) of premorbid headache. Results The mean patient age was 14.1 years; 63% were male. Headache was the most common postconcussion symptom, acknowledged by 69.4% of patients. When considering the full cohort, the PCA demonstrated clustering of headache with photophobia, phonophobia, nausea, dizziness, and neck pain. Similar clustering was present among patients without premorbid headaches. Repeating the analysis in the patients with preconcussion headaches led to elimination of neck pain from the cluster. Conclusions PTH correlates strongly with other migraine symptoms among youth with concussion, regardless of premorbid headaches. This clustering of migraine symptoms supports the existence of PTM as a distinct clinical entity in some patients.

Temporal lobe seizures are accompanied by complex behavioral phenomena including loss of consciousness, dystonic movements and neuroendocrine changes. These phenomena may arise from extended neural networks beyond the temporal lobe. To investigate this, we imaged cerebral blood flow (CBF) changes during human temporal lobe seizures with single photon emission computed tomography (SPECT) while performing continuous video/EEG monitoring. We found that temporal lobe seizures associated with loss of consciousness produced CBF increases in the temporal lobe, followed by increases in bilateral midline subcortical structures. These changes were accompanied by marked bilateral CBF decreases in the frontal and parietal association cortex. In contrast, temporal lobe seizures in which consciousness was spared were not accompanied by these widespread CBF changes. The CBF decreases in frontal and parietal association cortex were strongly correlated with increases in midline structures such as the mediodorsal thalamus. These results suggest that impaired consciousness in temporal lobe seizures may result from focal abnormal activity in temporal and subcortical networks linked to widespread impaired function of the association cortex.

Generalized seizures are commonly thought to involve the entire brain homogeneously. However, recent evidence suggests that selective cortical-subcortical networks may be crucial for the initiation, propagation, and behavioral manifestations of generalized seizures, while other brain regions are relatively spared. Here we review previous studies, and describe a new human model system for the investigation of generalized seizures: single-photon emission computed tomography, ictal-interictal difference imaging of generalized tonic-clonic seizures induced by electroconvulsive therapy (ECT). Bitemporal ECT activates focal bilateral frontotemporal and parietal association cortex, sparing other regions; bifrontal ECT activates mainly prefrontal cortex; while in right unilateral ECT the left frontotemporal region is relatively spared. Associated midline subcortical networks are also involved. Focal verbal memory deficits parallel the focal regions involved in these neuroimaging studies. Further studies of this kind may elucidate specific networks in generalized tonic-clonic seizures, providing targets for new therapeutic interventions in epilepsy.

The anatomical brain regions involved in the therapeutic and adverse actions of electroconvulsive therapy (ECT) are unknown. Previous studies suggest that bifrontal vs. bitemporal ECT differ in therapeutic efficacy and cognitive side effects. We therefore performed cerebral blood flow (CBF) imaging during bitemporal vs. bifrontal ECT-induced seizures to identify regions crucial for the differences between these treatments. Patients with major depression, undergoing bitemporal or bifrontal ECT, were studied. Ictal–interictal SPECT images were analyzed with statistical parametric mapping for bitemporal ( n =11 image pairs in 8 patients) and bifrontal ( n =4 image pairs in 2 patients) ECT-induced seizures to identify regions of ictal CBF changes. Bifrontal ECT was found to cause increases in CBF in prefrontal and anterior cingulate regions. Bitemporal ECT, however, caused CBF increases in the lateral frontal cortex and in the anterior temporal lobes. In bifrontal ECT, a greater increase in prefrontal activation, while sparing the temporal lobes, may result in a better therapeutic response and fewer adverse effects on memory than bitemporal ECT.

Generalized tonic–clonic seizures are among the most dramatic physiological events in the nervous system. The brain regions involved during partial seizures with secondary generalization have not been thoroughly investigated in humans. We used single photon emission computed tomography (SPECT) to image cerebral blood flow (CBF) changes in 59 secondarily generalized seizures from 53 patients. Images were analysed using statistical parametric mapping to detect cortical and subcortical regions most commonly affected in three different time periods: (i) during the partial seizure phase prior to generalization; (ii) during the generalization period; and (iii) post-ictally. We found that in the pre-generalization period, there were focal CBF increases in the temporal lobe on group analysis, reflecting the most common region of partial seizure onset. During generalization, individual patients had focal CBF increases in variable regions of the cerebral cortex. Group analysis during generalization revealed that the most consistent increase occurred in the superior medial cerebellum, thalamus and basal ganglia. Post-ictally, there was a marked progressive CBF increase in the cerebellum which spread to involve the bilateral lateral cerebellar hemispheres, as well as CBF increases in the midbrain and basal ganglia. CBF decreases were seen in the fronto-parietal association cortex, precuneus and cingulate gyrus during and following seizures, similar to the ‘default mode’ regions reported previously to show decreased activity in seizures and in normal behavioural tasks. Analysis of patient behaviour during and following seizures showed impaired consciousness at the time of SPECT tracer injections. Correlation analysis across patients demonstrated that cerebellar CBF increases were related to increases in the upper brainstem and thalamus, and to decreases in the fronto-parietal association cortex. These results reveal a network of cortical and subcortical structures that are most consistently involved in secondarily generalized tonic–clonic seizures. Abnormal increased activity in subcortical structures (cerebellum, basal ganglia, brainstem and thalamus), along with decreased activity in the association cortex may be crucial for motor manifestations and for impaired consciousness in tonic–clonic seizures. Understanding the networks involved in generalized tonic–clonic seizures can provide insights into mechanisms of behavioural changes, and may elucidate targets for improved therapies.

Here we report preliminary findings from a small-sample functional magnetic resonance imaging (fMRI) study of healthy adolescents who completed a working memory task in the context of a chronic sleep restriction experiment. Findings were consistent with those previously obtained on acutely sleep-deprived adults. Our data suggest that, when asked to maintain attention and burdened by chronic sleep restriction, the adolescent brain responds via compensatory mechanisms that accentuate the typical activation patterns of attention-relevant brain regions. Specifically, it appeared that regions that are normally active during an attention-demanding working memory task in the well-rested brain became even more active to maintain performance after chronic sleep restriction. In contrast, regions in which activity is normally suppressed during such a task in the well-rested brain showed even greater suppression to maintain performance after chronic sleep restriction. Although limited by the small sample, study results provide important evidence of feasibility, as well as guidance for future research into the functional neurological effects of chronic sleep restriction in general, the effects of sleep restriction in children and adolescents, and the neuroscience of attention and its disorders in children.

Distinguishing psychogenic nonepileptic seizures (PNES) from epileptic seizures (ES) is a difficult task that is often aided by neuropsychological evaluation. In the present study, signal detection theory (SDT) was used to examine differences between these groups in neuropsychological performance on the Wechsler Memory Scale, Third Edition, Word List Test (WMS-III WLT). The raw WMS-III WLT scores on this task failed to discriminate the two groups; however, with the use of SDT, patients with PNES were found to have a negative response bias and increased memory sensitivity as compared with patients with ES. When patients with left (LTLE) and right (RTLE) temporal lobe epilepsy were compared, the patients with LTLE demonstrated decreased memory sensitivity but a similar response bias as compared with the patients with RTLE. Memory impairment in patients with PNES may be related to faulty decision-making strategies, rather than true memory impairment, whereas memory performance differences between the LTLE and RTLE groups are likely related to actual differences in memory abilities.

Subtypes of psychogenic nonepileptic seizures (PNES) have emerged via classification of seizure semiology, psychological variables, or both. PNES subtypes that differ with respect to etiology may be amenable to targeted treatment strategies. The aim of the present study was to investigate the relationship between semiology type and Minnesota Multiphasic Personality Inventory-2 (MMPI-2) profile among patients with PNES. We did so by modifying a classification scheme proposed by Selwa et al. Our main hypothesis was that there would be significant associations of semiology-based subtypes with psychological profiles among patients with PNES. We found significant differences in mean scores on MMPI-2 clinical scales 1 (Hypochondriasis) and 3 (Hysteria) and Harris–Lingoes subscales D5 (Brooding) and Sc5 (Lack of Ego Mastery, Defective Inhibition) across PNES subtypes (catatonic, minor motor, major motor). The results of the present study enhance understanding of the nosology of PNES by identifying psychopathological correlates of semiology-based subtypes of PNES. Our study also may inform the methodology of future investigations of psychopathology among patients with PNES by providing support for content-based interpretation of the MMPI.

Background: Temporal lobe epilepsy (TLE) may affect brain regions outside the temporal lobe, causing impaired neocortical function during seizures.Methods: The authors selected 11 consecutive patients with mesial TLE and hippocampal sclerosis who underwent intracranial EEG monitoring and had no seizures during a follow-up period of at least 1 year after temporal lobe resection. Secondarily generalized seizures were excluded, and up to three seizures were analyzed per patient (31 seizures total). Electrode contacts were assigned to one of nine cortical regions based on MRI surface reconstructions. EEG during seizures was analyzed for specific patterns including low-voltage fast (LVF), rhythmic polyspike, spike-wave, irregular slowing, and postictal suppression.Results: Mesial and lateral temporal contacts on the side of seizure onset showed significant increases in ictal patterns such as LVF and polyspike activity, followed by postictal suppression. Bilateral frontal and ipsilateral parietal cortex exhibited large amplitude irregular slow waves during seizures. This frontoparietal slowing persisted into the postictal period. Perirolandic and occipital cortex were relatively spared. These EEG patterns were accompanied by bland staring, minor automatisms, and unresponsiveness or amnesia in the majority of patients studied.Conclusions: Prominent irregular slowing occurs in bilateral frontal and ipsilateral parietal association cortex during and after temporal lobe seizures. EEG slowing in the frontoparietal association cortex may signify physiologic impairment that contributes to widespread altered cerebral function during partial seizures.