Gender and psychiatric disorders in children with epilepsy. A meta-analysis

Risk of behavioral disturbances in pediatric patients with epilepsy and mild to moderate cognitive impairment: A cross-sectional study

OBJECTIVE

The aim of the study was to assess whether children and adolescents with epilepsy are at higher risk of behavioral disturbances when they have concomitant cognitive disturbances.

METHODS

Behavioral scores were generated using the Child Behavior Checklist (CBCL). Cognitive evaluation was applied by using different age appropriate versions of the Wechsler Intelligence Scale. CBCL scores (total, externalizing, internalizing) were compared between patients with and without intellectual disability (IQ score < 70 and ≥70, respectively).

RESULTS

144 (10.2 mean age, 6.0-17.9 range) patients were recruited for the study. Patients with mild to moderate intellectual disability (full-scale intelligence quotient (FSIQ) < 70) were not at higher risk of behavioral disturbances (total CBCL score ≥ 63) than patients without cognitive impairment. The mean total CBCL score was 62.0 ± 10.6 (range 42.0-83.5, 95% CI 57.9-62.0) and 59.3 ± 10.3 (range 38.0-80.0, CI 57.4-61.2) for patients with FSIQ < 70 and ≥70, respectively. There was no correlation between FSIQ and total CBCL scores. These findings were true for all IQ subcategories.

SIGNIFICANCE

Behavioral disturbances among children and adolescents with epilepsy occur despite the presence or absence of intellectual dysfunction with respect to full-scale IQ.

Screening and treatment of anxiety symptoms within an interdisciplinary comprehensive epilepsy center

Youth with epilepsy (YWE) are at elevated risk for anxiety, yet anxiety is often undetected and understudied in this population. Most research on anxiety in YWE is based on parent proxy-report and broad-band measures with limited sensitivity. The aim of the current study was to: 1) examine rates of anxiety symptoms in YWE using a diagnosis-specific, self-report measure of anxiety symptoms, 2) assess differences in anxiety symptoms by sociodemographic and medical variables, and 3) evaluate changes in anxiety symptoms following a brief behavioral health intervention delivered within an interdisciplinary epilepsy clinic visit. As part of routine clinical care, 317 YWE [Mage=13.4+2.5 years (range 7-19 years); 54% female; 84% White: Non-Hispanic] completed the Multidimensional Anxiety Scale for Children, self-report (MASC-10), with a subset completing the MASC-10 at a second timepoint (n=139). A retrospective chart review was completed and sociodemographic, medical variables and behavioral health interventions were collected. Thirty percent of YWE endorsed elevated anxiety symptoms, with higher rates in those who were younger. YWE who received a behavioral health intervention for anxiety (n=21) demonstrated greater decreases in anxiety symptoms from Time 1 to Time 2 compared to those who did not receive a behavioral intervention (n=108). The integration of psychologists into pediatric epilepsy clinics may have allowed for early identification of anxiety symptoms, as well behavioral interventions to address these symptoms, which has the potential to decrease the need for more intensive services.

Female-specific dysfunction of sensory neocortical circuits in a mouse model of autism mediated by mGluR5 and estrogen receptor α

Little is known of the brain mechanisms that mediate sex-specific autism symptoms. Here, we demonstrate that deletion of the autism spectrum disorder (ASD)-risk gene, Pten, in neocortical pyramidal neurons (NSEPten knockout [KO]) results in robust cortical circuit hyperexcitability selectively in female mice observed as prolonged spontaneous persistent activity states. Circuit hyperexcitability in females is mediated by metabotropic glutamate receptor 5 (mGluR5) and estrogen receptor α (ERα) signaling to mitogen-activated protein kinases (Erk1/2) and de novo protein synthesis. Pten KO layer 5 neurons have a female-specific increase in mGluR5 and mGluR5-dependent protein synthesis. Furthermore, mGluR5-ERα complexes are generally elevated in female cortices, and genetic reduction of ERα rescues enhanced circuit excitability, protein synthesis, and neuron size selectively in NSEPten KO females. Female NSEPten KO mice display deficits in sensory processing and social behaviors as well as mGluR5-dependent seizures. These results reveal mechanisms by which sex and a high-confidence ASD-risk gene interact to affect brain function and behavior.

Female specific dysfunction of sensory neocortical circuits in a mouse model of autism mediated by mGluR5 and Estrogen Receptor α

Autism manifests differently in males and females and the brain mechanisms that mediate these sex-dependent differences are unknown. Here, we demonstrate that deletion of the ASD-risk gene, Pten, in neocortical pyramidal neurons (NSE Pten KO) results in robust hyperexcitability of local neocortical circuits in female, but not male, mice, observed as prolonged, spontaneous persistent activity states (UP states). Circuit hyperexcitability in NSE Pten KO mice is mediated by enhanced and/or altered signaling of metabotropic glutamate receptor 5 (mGluR5) and estrogen receptor α (ERα) to ERK and protein synthesis selectively in Pten deleted female neurons. In support of this idea, Pten deleted Layer 5 cortical neurons have female-specific increases in mGluR5 and mGluR5-driven protein synthesis. In addition, mGluR5-ERα complexes are elevated in female cortex and genetic reduction of ERα in Pten KO cortical neurons rescues circuit excitability, protein synthesis and enlarged neurons selectively in females. Abnormal timing and hyperexcitability of neocortical circuits in female NSE Pten KO mice are associated with deficits in temporal processing of sensory stimuli and social behaviors as well as mGluR5-dependent seizures. Female-specific cortical hyperexcitability and mGluR5-dependent seizures are also observed in a human disease relevant mouse model, germline Pten +/- mice. Our results reveal molecular mechanisms by which sex and a high impact ASD-risk gene interact to affect brain function and behavior.

Key predictors of epilepsy-specific health-related quality of life (HRQOL) in youth with epilepsy

PURPOSE

Epilepsy-specific health-related quality of life (HRQOL) is an important outcome in youth with epilepsy (YWE). The PedsQL™ Epilepsy Module is the only caregiver-proxy and youth self-report epilepsy-specific HRQOL measure that can be used with youth 2-25 years. Multiple factors affect HRQOL, including epilepsy-specific characteristics, comorbid mental and behavioral health concerns, as well as sociodemographic factors. However, we have not yet examined the cumulative impact of these factors on epilepsy-specific HRQOL in YWE using the PedsQL™ Epilepsy module.

METHOD

Youth with epilepsy (n = 281) and their caregivers completed questionnaires focused on sociodemographic factors (e.g., youth biological sex and age), mood/anxiety and behavior symptoms (i.e., Behavioral Assessment Scale for Children - Second Edition; BASC-2, Parent Rating Scale), epilepsy characteristics [e.g., seizure frequency, number of anti-seizure medications (ASMs), ASM side effects, and years since diagnosis], and the PedsQL™ Epilepsy module (subscales: Impact, Cognitive Functioning, Executive Functioning, Sleep, and Mood/Behavior).

RESULTS

Hierarchical linear regressions were conducted to examine caregiver-proxy and youth self-reported factors that affect epilepsy-specific HRQOL. Results indicate the strongest key shared predictors of HRQOL in YWE, for both youth and caregiver informants, were mental and behavioral health symptoms. For instance, caregiver-proxy report of YWE HRQOL indicated BASC-2 Externalizing (p < 0.05), Behavioral Symptoms (p < 0.01), and Adaptive Skills (p < 0.001) explained 58 % of the variance in youth Cognitive Functioning HRQOL, while youth self-report of HRQOL indicated that BASC-2 Externalizing (p < 0.01), Behavioral Symptoms (p < 0.05), and Adaptive Skills (p < 0.001) contributed only 36 % of the variance in Cognitive Functioning HRQOL above and beyond the variance explained by sociodemographic and epilepsy-specific characteristics. Similar results were noted for Executive Functioning HRQOL domain, wherein caregiver-proxy report of YWE HRQOL indicated BASC-2 Internalizing (p < 0.01), Behavioral Symptoms (p < 0.001) and Adaptive Skills (p < 0.001) explained 65 % of variance in Executive Functioning, whereas youth self-report of Executive Functioning HRQOL indicated that caregiver-proxy BASC-2 Internalizing (p < 0.001) and Behavioral Symptoms (p < 0.01) explained 34 % of the variance in Executive Functioning HRQOL, above and beyond the variance explained by sociodemographic and epilepsy-specific characteristics. Unique mental and behavioral health predictors of YWE HRQOL were also found for both caregiver-proxy and youth self-report.

CONCLUSIONS

Given the integral role of mental and behavioral health symptoms in epilepsy-specific HRQOL, it is critical to address mental and behavioral health symptoms preventatively and proactively to provide YWE with the most optimal health plan, including good seizure control, minimal ASM side effects, and the best possible HRQOL.

The association between early childhood onset epilepsy and attention-deficit hyperactivity disorder (ADHD) in 3237 children and adolescents with Autism Spectrum Disorder (ASD): a historical longitudinal cohort data linkage study

Children and young people with Autism Spectrum Disorder (ASD) have an increased risk of comorbidities, such as epilepsy and Attention-Deficit/Hyperactivity Disorder (ADHD). However, little is known about the relationship between early childhood epilepsy (below age 7) and later ADHD diagnosis (at age 7 or above) in ASD. In this historical cohort study, we examined this relationship using an innovative data source, which included linked data from routinely collected acute hospital paediatric records and childhood community and inpatient psychiatric records. In a large sample of children and young people with ASD (N = 3237), we conducted a longitudinal analysis to examine early childhood epilepsy as a risk factor for ADHD diagnosis while adjusting for potential confounders, including socio-demographic characteristics, intellectual disability, family history of epilepsy and associated physical conditions. We found that ASD children and young people diagnosed with early childhood epilepsy had nearly a twofold increase in risk of developing ADHD later in life, an association which persisted after adjusting for potential confounders (adjusted OR = 1.72, CI95% = 1.13-2.62). This study suggests that sensitive monitoring of ADHD symptoms in children with ASD who have a history of childhood epilepsy may be important to promote early detection and treatment. It also highlights how linked electronic health records can be used to examine potential risk factors over time for multimorbidity in neurodevelopmental conditions.

Outcome at age 7 of epilepsy presenting in the first 2 years of life. A population-based study

Objective

Existing data suggest that epilepsy presenting in the first few years of life carries a worse prognosis than later onset. However, studies are few and methods differ, making interpretations of data uncertain. This study analyzes outcome at age 7 and potential prognostic factors in a well‐characterized population‐based cohort with epilepsy onset during the first 2 years of life.

Methods

An incidence cohort of 116 prospectively identified cases of epilepsy with seizure onset before age 2 years was described in Stödberg et al. (2020). Cases were originally retrieved from the Stockholm Incidence Registry of Epilepsy (SIRE), which registered all cases with a first unprovoked epileptic seizure from September 1, 2001, in Northern Stockholm. Data on treatment and outcome at age 7 years were collected from electronic medical records and through interviews with parents. Outcome and potential prognostic factors were analyzed with descriptive statistics and multivariable log binomial regression analysis.

Results

Eleven children (9.5%) died before age 7. Polytherapy was common. Epilepsy surgery was performed in two children. At age 7 years, 61 of 116 children (53%) had been seizure‐free for the last 2 years or longer. Intellectual disability was diagnosed in 57 of 116 children (49%), autism spectrum disorder in 13 (11%), and cerebral palsy in 28 (24%). West syndrome had a similar seizure remission rate but a worse cognitive outcome. There was no difference in outcome between first and second year onset. Six predictors, including etiology, remained associated with two or more outcome variables after regression analysis.

Significance

About half of children with infantile‐onset epilepsy will become seizure‐free and half of them will have intellectual disability. Etiology was confirmed as a major independent predictor of outcome. Our study contributes to a more firm knowledge base when counseling parents of infants diagnosed with epilepsy.

High prevalence of psychiatric comorbidities in children and adolescents at a tertiary epilepsy center

BACKGROUND

Epilepsy is highly comorbid with psychiatric disorders and a significant amount of the morbidity related to epilepsy is in fact a result of psychiatric comorbidities.

OBJECTIVE

To investigate the frequency of different psychiatric comorbidities in children with refractory epilepsy.

METHODS

We present preliminary observational data from a series of patients (n=82) examined in the psychiatric branch of a tertiary epilepsy center in Rio de Janeiro, Brazil. Patients were classified as presenting autism spectrum disorders, mood disorders, anxiety disorders, disruptive disorders, attention deficit hyperactivity disorder (ADHD), intellectual development disorder, psychotic episode, dissociative/conversive disorders or others. We determined the frequency of each disorder, along with demographic data, medications prescribed, electroencephalogram findings and additional medical examinations and consultations.

RESULTS

The most common comorbidities in our sample were autism spectrum disorders and ADHD. Antipsychotics and selective serotonin uptake inhibitors were the most commonly prescribed psychiatric medications.

CONCLUSIONS

Knowledge about the prevalence of such comorbidities may provide more targeted interventions in Psychiatry and Psychology services linked to epilepsy centers.

Long-term employment, education, and healthcare costs of childhood and adolescent onset of epilepsy

OBJECTIVE

Childhood- and adolescent-onset epilepsy may have a significant impact on long-term educational and vocational status, which in turn has consequences for individuals' socioeconomic status. We estimated the factual long-term socioeconomic consequences and healthcare costs of individuals with diagnosed epilepsy.

METHODS

The prospective cohort study included Danish individuals with epilepsy onset before the age of 18 years, diagnosed between 2002 and 2016. Healthcare costs and socioeconomic data were obtained from nationwide administrative and health registers. The prediction was made with a general estimating equation (GEE). A total of 15,329 individuals were found with the diagnosis during this period and were followed until the age of 30 years. These were compared with 31,414 controls. We used 30 years as this represent an age where most has finalized their education, and as such represent the final educational level. Patients and their controls were subdivided into debut age groups of 0-5 and 6-18 years. Individuals were matched for age, gender, and residential location.

RESULTS

Compared with control groups, patients with epilepsy at the age of 30 years tended to have the following: 1) parents with lower educational attainment; 2) a significantly lower educational level when controlling for parental education attainment; 3) lower grade-point averages; 4) a lower probability of being in employment and lower income, even when transfer payments were considered; and 5) elevated healthcare costs, including those for psychiatric care. It was also noted that the long-term educational consequences for patients with epilepsy were associated with parental educational level. Differences were more pronounced for those with early (0-5 years) rather than later (6-18 years) onset epilepsy.

CONCLUSIONS

Epilepsy is associated with severe long-term socioeconomic consequences: lower educational level, school grades, employment status, and earned income. The presence of epilepsy is associated with parental educational level.

LIMITATIONS

SIGNIFICANT OUTCOMES.