CASK pathogenic variant which expands the clinical spectrum for MICPCH syndrome in an adult patient.

The CASK gene and its product protein kinase have been associated with microcephaly with pontine and cerebellar hypoplasia (MICPCH) syndrome and various other neurodevelopmental disorders. Clinical presentation is highly variable and generally includes intellectual disability, neurological disorders, and dysmorphic features, at a minimum. We present the case of one of the oldest known currently living patients with MICPCH syndrome with additional features not previously described in the literature (midface retrusion, macroglossia, dental crowding, adolescent-onset contractures at large joints, laxity at finger joints, and prominent wrist dystonia). Progressive hypertonicity throughout the patient's life has been managed with serial botulinum toxin injections. A comprehensive multimodal care team including physiatry, physical therapy, exercise therapy, and audiology has been assisting her with hearing deficits, communication skills, and mobility. This potentially expands the phenotype of MICPCH syndrome and provides information about the management of this condition into adulthood.

Addressing social determinants of health through customization: Quality improvement, telemedicine, and care coordination to serve immigrant families.

PURPOSE: The purpose of this project was to establish a pathway for electronic medical record (EMR) customization, utilizing quality improvement methodology, to both identify and address adverse social determinants of health (SDOH) among a diverse spina bifida (SB) population. METHODS: Starting in September 2020, the four fundamental steps were to (1) facilitate an advisory committee to safeguard the standard clinical protocols, (2) characterize barriers to implementation, (3) evaluate workflow to sustain data entry capture, and (4) manage the technology platform for seamless integration. The SB clinic was the first clinic within the enterprise to rollout the use of an adverse SDOH mitigation activity. A Spanish-speaking interpreter was scheduled for all clinics, as many families were limited in English proficiency. RESULTS: The customization of the EMR to support an efficient workflow to address SDOH was feasible in a large and diverse urban medical center. Of the 758 patients served in the clinic, a myelomeningocele diagnosis was present in 86% of individuals. While 52% of participants were female, ethnically 52% of individuals served were Latino. Many of these individuals disclosed being recent immigrants to the United States. Often immigration and asylum related issues were at the forefront of the SDOH issues addressed. CONCLUSION: Given the occurrence of adverse SDOH among individuals with SB, many of whom are new Latin-American immigrants, meaningful clinical efforts are needed to both identify and address the causes of the observed disparities. EMR customization is feasible and can identify and, through social prescriptions, address SDOH to support the provision of safe, high quality, and equitable care for vulnerable and medically complex populations at home and potentially abroad.

Spina Bifida Global Learning Collaborative: Educating the next generation of clinicians, researchers, and advocates.

PURPOSE: This project aimed to launch an international learning community to guide the development of a spina bifida (SB) curriculum for global health trainees. METHODS: Using a descriptive study design, a convenience sample of SB curricula were identified in 2022-23 by members of the Spina Bifida World Congress Outreach Committee and evaluated during a series of monthly Zoom calls to discuss SB education in a global health context. Participants included (1) leadership from the ReachAnother Foundation, (2) invited panelists from the Spina Bifida World Congress Global Health Symposium, and (3) global health students and preceptors. Education initiatives in Ethiopia, Sweden, Argentina, Ecuador, and the United States were evaluated vis-à-vis format and content. RESULTS: All of the education initiatives referenced the framework of the World Health Organization International Classification of Functioning, Disability and Health. Formats varied and included both virtual and interactive workshops, print materials, videos, and guides for small group discussion. Content addressed four domains: Folate Prevention, Neurosurgical Training, After Care, and Data Collection. A multidisciplinary approach, partnerships with families, and workforce pipeline training were identified as guiding themes for educating the next generation of SB researchers and clinicians in global health settings. CONCLUSION: The Spina Bifida Global Learning Collaborative is a transnational group of advocates, clinicians, and investigators whose mission is the advancement of SB-related global health education. Lessons learned from the collaborative are being leveraged to develop a global health curriculum for learners, which may improve services for individuals with SB around the globe.

Weight Status of Children Participating in the National Spina Bifida Patient Registry.

OBJECTIVES: Describe the distribution of weight status categories and determine factors associated with overweight and obesity (OW/OB) in children and adolescents with spina bifida (SB) using the National Spina Bifida Patient Registry. METHODS: Demographic, anthropometric, and clinical data collected from 2009 through 2018 was used to describe the prevalence of OW/OB. The generalized estimating equation model (GEE) identified factors associated with OW/OB among individuals with SB. RESULTS: Participants (n = 7215) were aged 2 to 19 years (mean = 11.1; standard error, 0.06) and 51.4% female. The majority were non-Hispanic white (57.2%) followed by Hispanic or Latino (25.1%) and non-Hispanic Black (7.5%). The myelomeningocele (MMC) subgroup accounted for 76.3%. Most (60.2%) were community ambulators. The overall percentage of OW/OB was 45.2%, with 49.2% of MMC and 32.0% of nonmyelomeningocele OW/OB. Following the Centers for Disease Control Obesity Severity Classification System, 19.7% of MMC were in class 1, 6.6% in class 2, and 3.5% in class 3. Univariate analysis of MMC participants demonstrated demographic (age, sex, race/ethnicity, and clinic region) and clinical variables (functional level of lesion, ambulation, and number of shunt surgeries) were associated with OW/OB. The GEE model showed that OW/OB was independently, and significantly, associated with age, sex, race/ethnicity, lesion levels, and geographic location of the clinics. CONCLUSIONS: The demographic and clinical factors associated with OW/OB in children and adolescents with SB further our understanding of factors contributing to the higher prevalence of OW/OB in this population and may inform OW/OB prevention and treatment strategies.

Clustered mutations in the GRIK2 kainate receptor subunit gene underlie diverse neurodevelopmental disorders.

Kainate receptors (KARs) are glutamate-gated cation channels with diverse roles in the central nervous system. Bi-allelic loss of function of the KAR-encoding gene GRIK2 causes a nonsyndromic neurodevelopmental disorder (NDD) with intellectual disability and developmental delay as core features. The extent to which mono-allelic variants in GRIK2 also underlie NDDs is less understood because only a single individual has been reported previously. Here, we describe an additional eleven individuals with heterozygous de novo variants in GRIK2 causative for neurodevelopmental deficits that include intellectual disability. Five children harbored recurrent de novo variants (three encoding p.Thr660Lys and two p.Thr660Arg), and four children and one adult were homozygous for a previously reported variant (c.1969G>A [p.Ala657Thr]). Individuals with shared variants had some overlapping behavioral and neurological dysfunction, suggesting that the GRIK2 variants are likely pathogenic. Analogous mutations introduced into recombinant GluK2 KAR subunits at sites within the M3 transmembrane domain (encoding p.Ala657Thr, p.Thr660Lys, and p.Thr660Arg) and the M3-S2 linker domain (encoding p.Ile668Thr) had complex effects on functional properties and membrane localization of homomeric and heteromeric KARs. Both p.Thr660Lys and p.Thr660Arg mutant KARs exhibited markedly slowed gating kinetics, similar to p.Ala657Thr-containing receptors. Moreover, we observed emerging genotype-phenotype correlations, including the presence of severe epilepsy in individuals with the p.Thr660Lys variant and hypomyelination in individuals with either the p.Thr660Lys or p.Thr660Arg variant. Collectively, these results demonstrate that human GRIK2 variants predicted to alter channel function are causative for early childhood development disorders and further emphasize the importance of clarifying the role of KARs in early nervous system development.

Preface to the special issue for the guidelines for the care of people with spina bifida.

"Guidelines for the Care of People with Spina Bifida" provide the best, most up-to-date recommendations for care across the lifespan, from newborn to adult. This special issue of the Journal of Pediatric Rehabilitation Medicine is a collection of key sections of the 2018 Guidelines. The sections of the Guidelines published herein have been expanded from their original format to include more background information about key topics and why they are important in the care of people with SB. It is the hope of SBA that these and future Guidelines will promote and standardize best practice regardless of the characteristics of individuals with SB or where their care was received. It is through providing better care that we will ultimately achieve a better future for all those living with SB.

Scientific methodology of the development of the Guidelines for the Care of People with Spina Bifida: An initiative of the Spina Bifida Association.

BACKGROUND: We combined literature review and consensus-building methodologies to develop health care guidelines for people with Spina Bifida across the life span. OBJECTIVE: The present paper describes the methodology used to update and expand this fourth edition of the Guidelines for the Care of People with Spina Bifida ("Guidelines"). This process was a fundamental initiative within the Spina Bifida Collaborative Care Network. METHODS: Working groups were formed consisting of international, multidisciplinary teams of clinical and research experts. A systematic review of multiple databases was conducted. The consensus building methodology, One-Text Procedure, was followed to draft and revise documents. Each section of the Guidelines was presented by working group chairs at a face-to-face meeting using the Nominal Group Technique (NGT). RESULTS: The Level 1 review resulted in 2449 abstracts being reviewed, and the Level 2 review resulted in 874 full text articles being archived for working groups. After working groups added and eliminated articles, a total of 803 manuscripts were included in the bibliography of the Guidelines. The final version of the Guidelines was then released in 2018. CONCLUSIONS: Evidenced based-research and consensus methodologies were used to develop the fourth edition of the Guidelines. It is hoped that this document will guide not only health care providers, but also patients and families, so that people with Spina Bifida can have the best and most scientifically-based care and treatments throughout ever-longer and higher-quality lives.

Central and peripheral dysmyelination in a 3-year-old girl with ring chromosome 18.

Myelin basic protein (MBP) contributes to peripheral and central nervous system myelin. Developmental myelinopathies exist on a clinical spectrum, but MBP is not included on leukodystrophy or CMT gene panels. This ring chromosome 18 case presents serial MRI and EMG/NCS, shedding light on the early clinical course of the disorder.

Spina bifida transition to adult healthcare guidelines.

With an estimated 85% of individuals with spina bifida (SB) surviving into adulthood, SB-specific transition to adult healthcare guidelines are warranted to address the diverse and complex medical, adaptive, and social needs particular to this condition. This commentary discusses the SB Transition Healthcare Guidelines from the 2018 Spina Bifida Association's Fourth Edition of the Guidelines for the Care of People with Spina Bifida, reviews current transition care models in which such guidelines can be implemented, and explores further research topics in SB transition care.

Genetic epidemiology of neural tube defects.

It has been estimated that 60-70% of neural tube defects (NTDs) have a genetic component, but few causative genes have been identified. The lack of information on genes associated with non-syndromic NTDs in humans is especially notable as the "genomic revolution" has led to new tools (e.g., genome-wide genotyping arrays, next-generation sequencing) that are helping to elucidate the full spectrum of genetic variation (from common to rare) contributing to complex traits, including structural birth defects. However, the application of modern genomic approaches to the study of NTDs has lagged behind that of some other common structural birth defects. This may be due to the difficulty of assembling large study cohorts for anencephaly or spina bifida. The purpose of this review is to outline the evolution of genetic studies of NTDs, from studies of familial aggregation to candidate gene and genome-wide association studies, through whole-exome and whole-genome sequencing. Strategies for addressing gaps in NTD genetic research are also explored.

Research Needs for Effective Transition in Lifelong Care of Congenital Genitourinary Conditions: A Workshop Sponsored by the National Institute of Diabetes and Digestive and Kidney Diseases.

Over the last 5 decades, health-care advances have yielded quantum improvements in the life expectancy of individuals with congenital genitourinary conditions (CGCs), leading to a crisis of care. Many individuals with CGC enter adulthood unprepared to manage their condition. Pediatric CGC specialists lack training to manage adulthood-related health-care issues, whereas adult genitourinary specialists lack training within the context of CGCs. To address these challenges, the National Institutes of Diabetes and Digestive and Kidney Diseases convened individuals with CGCs and experts from a variety of fields to identify research needs to improve transitional urology care. This paper outlines identified research needs.

Life course health and healthcare utilization among adults with spina bifida.

AIM: To evaluate the prevalence of organ system disorders and describe healthcare utilization among adults with spina bifida at a regional clinic. METHOD: This study was a structured chart review using the Rochester Health Status Survey-IV. 65 males, 57 females aged 16 to 59 years were seen at the Spina Bifida Center of Central New York between January 2007 and December 2008 (annual hospitalization rate was 15 out of 100). RESULTS: Hospitalizations and acute outpatient visits were associated with having shunted hydrocephalus, whereas visits to the emergency department were associated with having a decubitus ulcer. Logistic regression models revealed that older adults made proportionately fewer visits to primary care providers than younger adults (odds ratio 0.919; p=0.02). Yet for every 1-year increase in age, the odds of being hospitalized increased by 5% (odds ratio 1.051; p=0.03). INTERPRETATION: Adults with spina bifida have multiple organ-system disorders. They have greater difficulty accessing services, and utilize emergency and inpatient healthcare at higher rates than the general population. In the future, adults with spina bifida will require access to more medical care and preventive services if they are to have optimal health, well-being, and functioning.

Population pharmacokinetics of oral baclofen in pediatric patients with cerebral palsy.

OBJECTIVE: To characterize the population pharmacokinetics (PK) of oral baclofen and assess impact of patient-specific covariates in children with cerebral palsy (CP) in order to support its clinical use. SUBJECTS DESIGN: Children (2-17 years of age) with CP received a dose of titrated oral baclofen from 2.5 mg 3 times a day to a maximum tolerated dose of up to 20 mg 4 times a day. PK sampling followed titration of 10-12 weeks. Serial R- and S-baclofen plasma concentrations were measured for up to 16 hours in 49 subjects. Population PK modeling was performed using NONMEM 7.1 (ICON PLC; Ellicott City, Maryland). RESULTS: R- and S-baclofen showed identical concentration-time profiles. Both baclofen enantiomers exhibited linear and dose/kg-proportional PK, and no sex differences were observed. Average baclofen terminal half-life was 4.5 hours. A 2-compartment PK model with linear elimination and transit absorption steps adequately described concentration-time profiles of both baclofen enantiomers. The mean population estimate of apparent clearance/F was 0.273 L/h/kg with 33.4% inter-individual variability (IIV), and the apparent volume of distribution (Vss/F) was 1.16 L/kg with 43.9% IIV. Delayed absorption was expressed by a mean transit time of 0.389 hours with 83.7% IIV. Body weight, a possible genetic factor, and age were determinants of apparent clearance in these children. CONCLUSION: The PK of oral baclofen exhibited dose-proportionality and were adequately described by a 2-compartment model. Our population PK findings suggest that baclofen dosage can be based on body weight (2 mg/kg per day) and the current baclofen dose escalation strategy is appropriate in the treatment of children with CP older than 2 years of age.

Family satisfaction, pain, and quality-of-life in emerging adults with spina bifida: a longitudinal analysis.

OBJECTIVE: This study uses the Life Course Model for Spina Bifida (SB) to advance knowledge of factors associated with change in quality-of-life (QOL) among emerging adults with SB. DESIGN: Forty-eight participants (mean [SD], 22.04 [2.16] yrs) completed self-report questionnaires at two time points, 15 mos apart. Four QOL domains (physical health, psychological, social relationships, and environment) were measured using the World Health Organization QOL-BREF version. SB clinical data were collected via chart reviews. Paired t tests and reliable change indices evaluated group- and individual-level QOL change, respectively. Multiple regression analyses tested the contributions of the Life Course variables in explaining change in QOL over time. RESULTS: No significant group-level differences in the QOL domains were found between time 1 and time 2, but there was substantial individual variation in QOL over time. SB severity was related to a decline only in psychological QOL (B = -0.68, P = 0.02). Increased pain was associated with reduced physical health (B = -0.29, P = 0.049) and psychological (B = -0.29, P = 0.03) QOL at time 2, whereas greater family satisfaction was related to improved QOL in several domains. CONCLUSIONS: Clinicians should be aware of the negative impact of pain and the protective influence of family satisfaction on QOL in emerging adults with SB.

Spina bifida grown up.

The majority of people with spina bifida in the United States are now older than 18 years of age. Health care delivery for adults with this condition should include routine surveillance for common conditions such as hypertension, hyperlipidemia and cancer. It should also address spina bifida-related complications such as pressure sores, lymphedema, sexual dysfunction and infertility, and hydrocephalus, as well as chiari-related symptoms such as sleep apnea and urologic and renal functioning. Almost all adults with spina bifida benefit from regular followup with specialists in urology, neurosurgery and physiatry. Health care providers for adults with spina bifida should recognize the impact of executive dysfunction and nonverbal learning disability on self management, independent living, and employment in adults with spina bifida.

Self-management, satisfaction with family functioning, and the course of psychological symptoms in emerging adults with spina bifida.

OBJECTIVE: To explore psychological symptoms in emerging adults with spina bifida (SB) and their association with self-management and satisfaction with family functioning. METHODS: Longitudinal data were collected at 2 time points, 15 months apart, in 48 individuals with SB. Reliable change indices and paired samples t-tests assessed change in anxiety and depressive symptoms. Hierarchical regression models explored the contributions of SB severity, family satisfaction, and self-management in explaining change in psychological symptoms. RESULTS: No significant group level differences in psychological symptoms were found across time in participants (Mean age 22 years), but significant individual-level change in anxiety symptoms (n = 13) and depressive symptoms (n = 9) was observed. Improved satisfaction with family functioning was associated with decreased anxiety symptoms (b = -0.30, p = .02), and increased SB self-management was related to reduced depressive symptoms (b = -0.63, p = .01). CONCLUSIONS: Changes in self-management and satisfaction with family functioning may influence the course of psychological symptoms.

Interrelationships of sex, level of lesion, and transition outcomes among young adults with myelomeningocele.

AIM: To advance understanding of the interrelationships of sex, level of lesion (LOL), self-management, community integration (employment, independent living), and quality of life (QOL) in young adults with myelomeningocele. METHOD: A multicenter convenience sample of 50 individuals with myelomeningocele, 18 to 25 years of age (mean age 21 y 5 mo, SD 2 y), participated in a structured clinical interview on self-management (Adolescent Self-Management and Independence Scale II [AMIS II]) and completed a self-report questionnaire comprising standardized measures. QOL was assessed using the World Health Organization Quality of Life (WHOQOL)-BREF instrument. A chart review yielded clinical data. RESULTS: Most participants were Caucasian (78%), female (56%: 28 females, 22 males), unemployed (58%), and in supervised living environments (74%). Eighty per cent had a history of hydrocephalus requiring shunt placement. A lumbar LOL was most frequently reported (64%), followed by a sacral LOL (22%), and thoracic LOL (7%). Males were more likely to report employment (p=0.008), but females had greater success in transitioning into independent living settings (p=0.015). LOL was a significant predictor of specific dimensions of self-management, employment, and QOL (p < 0.05). Mean scores on the AMIS II reflected deficits in condition management activities and tasks of everyday life. Limited QOL was also observed. INTERPRETATION: The overall low rates of employment and independent living suggest that individuals with myelomeningocele are experiencing great difficulty in achieving these milestones of emerging adulthood, regardless of sex. Limited success in developing self-management skills and restricted QOL also highlight vulnerability in this population.

Social participation in a nationally representative sample of older youth and young adults with autism.

OBJECTIVE: To describe social participation and identify factors that affect it in a nationally representative sample of adolescents and young adults with autism. METHODS: Longitudinal cohort study using data from the National Longitudinal Transition Study-2. The World Health Organization International Classification of Functioning, Disability, and Health model was used with participation as the dependent category. RESULTS: A nationally representative sample of 725 youth with autism representing a weighted sample of 21,010 individuals was followed up for 4 years. The mean age at first interview was 15.4 years and 19.2 years at follow-up. More than half the youth at follow-up had not gotten together with friends in the previous year and 64% had not talked on the phone with a friend. Being employed or in secondary education was associated with the following factors (odds ratios): problems conversing (0.67), being teased (0.17), mental retardation (0.06), being above the poverty level (4.17), not using prescription medicine (4.11), general health status (2.30), and parental involvement with school (1.69) (all p < .001). CONCLUSIONS: Many adolescents and young adults with autism become increasingly isolated. Although each aspect of social participation had its own distinct pattern of factors related to it, the ability to communicate effectively, less severe autism, coming from an environment that was not impoverished and having parents who advocated were associated with more positive outcomes. These data provide insights into the factors that affect the participation of youth with autism during their transition years and should ultimately lead to interventions that could improve those transitions.