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1.
Lancet Child Adolesc Health ; 6(6): 432-444, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35421380

RESUMEN

Intellectual disability ranks in the top ten causes of disease burden globally and is the top cause in children younger than 5 years. 2-3% of children have an intellectual disability, and about 15% of children present with differences consistent with an intellectual disability (ie, global developmental delay and borderline intellectual functioning). In this Review, we discuss the prevalence of mental health problems, interventions to address these, and issues of access to treatment and services. Where possible, we take a global perspective, given most children with intellectual disability live in low-income and middle-income countries. Approximately 40% of children with intellectual disability present with a diagnosable mental disorder, a rate that is at least double that in children without intellectual disability. Most risk factors for poor mental health and barriers to accessing support are not unique to people with intellectual disability. With proportionate universalism as the guiding principle for reducing poor mental health at scale, we discuss four directions for addressing the mental health inequity in intellectual disability.


Asunto(s)
Discapacidad Intelectual , Niño , Humanos , Discapacidad Intelectual/psicología , Salud Mental , Pobreza , Prevalencia , Factores de Riesgo
2.
Acta Neuropsychiatr ; : 1-8, 2020 Jan 06.
Artículo en Inglés | MEDLINE | ID: mdl-31902391

RESUMEN

OBJECTIVE: To investigate the association of prenatal alcohol exposure (PAE) and early neurodevelopment in the first 2 years of life, adjusting for maternal socio-demographic and psychosocial factors, in the Drakenstein Child Health Study (DCHS), a South African birth cohort study. METHODS: The DCHS comprises a population-based birth cohort of 1143 children, of which a subsample completed the Bayley Scales of Infant Development-III (BSID-III) at 6 (n = 260) and 24 months of age (n = 734). A subset of alcohol-exposed and -unexposed children was included in this analysis at age 6 (n = 52 exposed; n = 104 unexposed) and 24 months (n = 92 exposed; n = 184 unexposed). Multiple hierarchical regression was used to explore the associations of PAE with motor and language development. RESULTS: PAE was significantly associated with decreased gross motor [odds ratio (OR) = 0.16, 95% confidence interval (CI) = 0.06-0.44, p = 0.001] or fine motor (OR = 0.16, 95% CI = 0.06-0.46, p = 0.001) functioning after adjusting for maternal socio-demographic and psychosocial factors at 6 months of age only. No significant effects were found in either receptive or expressive communication and cognitive outcomes at either time points. CONCLUSION: PAE has potentially important consequences for motor development in the first 2 years of life, a period during which the most rapid growth and maturation occur. These findings highlight the importance of identifying high-risk families in order to provide preventive interventions, particularly in antenatal clinics and early intervention services.

3.
BMC Health Serv Res ; 19(1): 162, 2019 Mar 13.
Artículo en Inglés | MEDLINE | ID: mdl-30866932

RESUMEN

BACKGROUND: Low- and middle-income countries often lack the fiscal, infrastructural and human resources to conduct evidence-based research; similar constraints may also hinder the application of good clinical practice guidelines based on research findings from high-income countries. While the context of health organizations is increasingly recognized as an important consideration when such guidelines are implemented, there is a paucity of studies that have considered local contexts of resource-scarcity against recommended clinical guidelines. METHODS: This paper sets out to explore the implementation of the NICE Guideline 11 on family interventions when working with persons with intellectual disability and challenging behavior by a group of psychologists employed in a government health facility in Cape Town, South Africa. RESULTS: In the absence of evidence-based South African research, we argue that aspects of the guidelines, in particular those that informed our ethos and conceptual thinking, could be applied by clinical psychologists in a meaningful manner notwithstanding the relative scarcity of resources. CONCLUSION: We have argued that where guidelines such as the NICE Guidelines do not apply contextually throughout, it remains important to retain the principles behind these guidelines in local contexts. Limitations of this study exist in that the data were drawn only from the clinical experience of authors. Some of the implications for future research in resource-constrained contexts such as ours are discussed. Smaller descriptive, qualitative studies are necessary to explore the contextual limitations and resource strengths that exist in low- and middle-income settings, and these studies should be more systematic than drawing only on the clinical experience of authors, as has been done in this study.


Asunto(s)
Salud de la Familia , Discapacidad Intelectual/psicología , Trastorno de la Conducta Social/rehabilitación , Adulto , Programas de Gobierno , Recursos en Salud/estadística & datos numéricos , Servicios de Salud/estadística & datos numéricos , Hospitales Psiquiátricos , Humanos , Área sin Atención Médica , Guías de Práctica Clínica como Asunto , Pautas de la Práctica en Medicina , Psicología , Investigación Cualitativa , Sudáfrica
4.
Cult Med Psychiatry ; 43(2): 277-289, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30607873

RESUMEN

In a rapidly transforming world, cultural assimilation and the hybridity of clients and therapists are increasingly acknowledged. Juxtaposed against universalist and relativist discourses in Cultural Psychiatry, the elucidation of perceived "difference" from cultural norms, constructed as being observed in the lives of either the client, or therapist, or both, requires critical reflection on how such norms are derived and by whom. This cultural case study describes a clinical encounter between a Muslim South African woman, and a South African man of Afrikaner descent. A shared experience of marginalization led to surprising similarities and common ground against obvious cultural differences, which have contributed to the strengthening of the therapeutic relationship and consolidation of trust. Beside the more parsimonious focus on "shared marginalization" as a potential bridge to move towards transcending overt cultural differences, the case study's emphasis on a shared humanity within the interwoven texture of perceived difference go beyond dichotomous discourses that sharply dissect "sameness" from "otherness". This may well have relevance to any clinical encounter in which identity is dynamically presented and re-presented in complex ways.


Asunto(s)
Relaciones Profesional-Paciente , Psicoterapia , Identificación Social , Marginación Social , Adulto , Femenino , Humanos , Masculino , Sudáfrica
5.
Acta Neuropsychiatr ; 31(2): 74-83, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30449293

RESUMEN

OBJECTIVE: The aim of this paper was to provide a systematic review and update on the available longitudinal studies on the impact of prenatal alcohol exposure (PAE) on language, speech and communication development, as well as associated potential environmental confounders during the preschool period. METHODS: A literature search was restricted to English, full-text, peer-reviewed, longitudinal studies in from 1970 until present: PUBMed, Scopus, Web of Science {C-e Collection, Biological Abstracts, KCI-Kean Journal Database, Russian Science Citation Index, SciELO Citation Index, Zoological Rec-d}, Academic Search Premier (Africa-Wide Information, CINAHL, MEDLINE, PsycINFO. Keywords included: prenatal alcohol exposure (PAE); speech or language or communication outcomes; neurocognitive or neurodevelopment or neurobehavioral or neurobehavioural; infant or baby or toddler or preschooler; longitudinal or follow-up. The inclusion criteria included (i) longitudinal cohorts with at least 2 time-points; (ii) association of light, moderate or heavy PAE on language, speech or communication delay, development or disorder; (iii) environmental confounders; (iv) infants up to preschool age. RESULTS: Six studies satisfied the threshold for inclusion. Three studies reported that PAE was significantly associated with receptive or expressive delay. These studies demonstrated lower scores on either receptive or expressive communication in the alcohol group in comparison to the non-alcohol group, even after controlling for environmental factors up to 36 months. CONCLUSION: Evidence from the longitudinal studies reviewed suggest that PAE influenced delays in receptive and expressive communication up to 36 months. Contextual risk factors played a significant role in language development over time and especially as children approached school age.


Asunto(s)
Trastornos de la Comunicación/etiología , Trastornos del Desarrollo del Lenguaje/etiología , Efectos Tardíos de la Exposición Prenatal , Preescolar , Femenino , Humanos , Lactante , Estudios Longitudinales , Embarazo
6.
Afr J Disabil ; 7: 396, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29850438

RESUMEN

BACKGROUND: Intellectual disability (ID) is the most prevalent disability in the world. People with intellectual disability (PWID) frequently experience extreme violations of numerous human rights. Despite greater prevalence in South Africa than in high-income countries, most ID research currently comes from the Global North. This leaves us with few contextually sensitive studies to draw from to advance inclusive citizenship. OBJECTIVES: Our scoping review aims to investigate pertinent ID rights issues in South Africa, synthesise quantitative and qualitative studies, and provide a synopsis of available evidence on which to base future work. We aim to clarify key concepts, address gaps in the literature and identify opportunities for further research. METHOD: We followed strict eligibility criteria. Medical subject heading terms were entered into seven databases. Seven reviewers worked independently, two per paper. Quantitative and qualitative data extraction forms were designed. We followed Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines and registered a protocol. An inductive approach enabled a thematic analysis of selected studies. RESULTS: By following PRISMA guidelines, 82 studies were assessed for eligibility of which 59 were included. Ten sub-themes were integrated into four main themes: the right not to be discriminated against, the right to psychological and bodily integrity, the right to accommodating services and challenges to rights implementation. CONCLUSION: People with intellectual disability face compound difficulties when trying to assert their constitutionally entitled rights. This ongoing project requires serious commitment and action. Statutory obligations to nurture every South African's human rights naturally extend to PWID and their supporters who forge ahead in a disabling environment.

7.
Front Neurol ; 9: 1108, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30619064

RESUMEN

Aim: This paper systematically reviews the literature on the effects of prenatal alcohol exposure on early child development from birth to 5 years with the aim to synthesize the developmental outcomes associated with prenatal alcohol exposure, and inform further research to improve our knowledge of the manifestations of prenatal alcohol exposure. Methods: Electronic databases (MEDLINE, Psych INFO, and Psych ARTICLES) were searched to find papers on the developmental outcomes of prenatal alcohol exposure in neonates, infants and toddlers and pre-school aged children. Studies were selected based on participants self-reporting alcohol consumption during pregnancy (either prospectively or retrospectively) and/or children being diagnosed with FASD based on a standardized assessment that includes a dysmorphology examination. The search was limited to peer-reviewed, English language studies involving human subjects, up to 5.5 years old. Results: Out of the 1,684 titles screened, a total of 71 papers were identified as relevant and included in this review. The majority of studies were prospective longitudinal studies. A range of assessment modalities (or tools) was used to determine neurodevelopmental outcomes of prenatal exposure to alcohol in the age group under review, the most frequently described being the Bayley Scales of Infant and Toddler Development (BSID) (n = 19). Studies varied in terms of the dose, frequency, and timing of alcohol consumption during pregnancy and methodology used to assess alcohol consumption. Findings demonstrate extensive evidence for poor global developmental outcomes in children prenatally exposed to alcohol, particularly with moderate to severe levels of prenatal alcohol exposure. Conclusion: The outcomes related to lower levels of prenatal alcohol exposure as well as outcomes in specific developmental domains, are poorly understood. Further research should aim to clarify the more subtle or less easily measurable manifestations of prenatal alcohol exposure on early development when the potential for greatest impact of interventions is highest.

8.
Drug Alcohol Depend ; 177: 258-267, 2017 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-28624747

RESUMEN

OBJECTIVE: To examine outcomes among boys and girls that are associated with prenatal alcohol exposure. METHODS: Boys and girls with fetal alcohol spectrum disorders (FASD) and randomly-selected controls were compared on a variety of physical and neurobehavioral traits. RESULTS: Sex ratios indicated that heavy maternal binge drinking may have significantly diminished viability to birth and survival of boys postpartum more than girls by age seven. Case control comparisons of a variety of physical and neurobehavioral traits at age seven indicate that both sexes were affected similarly for a majority of variables. However, alcohol-exposed girls had significantly more dysmorphology overall than boys and performed significantly worse on non-verbal IQ tests than males. A three-step sequential regression analysis, controlling for multiple covariates, further indicated that dysmorphology among girls was significantly more associated with five maternal drinking variables and three distal maternal risk factors. However, the overall model, which included five associated neurobehavioral measures at step three, was not significant (p=0.09, two-tailed test). A separate sequential logistic regression analysis of predictors of a FASD diagnosis, however, indicated significantly more negative outcomes overall for girls than boys (Nagelkerke R2=0.42 for boys and 0.54 for girls, z=-2.9, p=0.004). CONCLUSION: Boys and girls had mostly similar outcomes when prenatal alcohol exposure was linked to poor physical and neurocognitive development. Nevertheless, sex ratios implicate lower viability and survival of males by first grade, and girls have more dysmorphology and neurocognitive impairment than boys resulting in a higher probability of a FASD diagnosis.


Asunto(s)
Consumo de Bebidas Alcohólicas/efectos adversos , Consumo de Bebidas Alcohólicas/psicología , Trastornos del Espectro Alcohólico Fetal/diagnóstico , Trastornos del Espectro Alcohólico Fetal/psicología , Caracteres Sexuales , Consumo de Bebidas Alcohólicas/epidemiología , Estudios de Casos y Controles , Niño , Femenino , Trastornos del Espectro Alcohólico Fetal/epidemiología , Humanos , Pruebas de Inteligencia , Masculino , Pruebas Neuropsicológicas , Embarazo , Efectos Tardíos de la Exposición Prenatal/diagnóstico , Efectos Tardíos de la Exposición Prenatal/epidemiología , Efectos Tardíos de la Exposición Prenatal/psicología
9.
Artículo en Inglés | MEDLINE | ID: mdl-28498341

RESUMEN

Background: Prevalence and characteristics of fetal alcohol syndrome (FAS) and total fetal alcohol spectrum disorders (FASD) were studied in a second sample of three South African rural communities to assess change. Methods: Active case ascertainment focused on children with height, weight and/or head circumference ≤25th centile and randomly-selected children. Final diagnoses were based on dysmorphology, neurobehavioral scores, and maternal risk interviews. Results: Cardinal facial features, head circumference, and total dysmorphology scores differentiated specific FASD diagnostic categories in a somewhat linear fashion but all FASD traits were significantly worse than those of randomly-selected controls. Neurodevelopmental delays were significantly worse for children with FASD than controls. Binge alcohol use was clearly documented as the proximal maternal risk factor for FASD, and significant distal risk factors were: low body mass, education, and income; high gravidity, parity, and age at birth of the index child. FAS rates continue to extremely high in these communities at 9-129 per 1000 children. Total FASD affect 196-276 per 1000 or 20-28% of the children in these communities. Conclusions: Very high rates of FASD persist in these general populations where regular, heavy drinking, often in a binge fashion, co-occurs with low socioeconomic conditions.


Asunto(s)
Trastornos del Espectro Alcohólico Fetal/epidemiología , Exposición Materna , Población Rural/estadística & datos numéricos , Adulto , Consumo de Bebidas Alcohólicas/epidemiología , Consumo de Bebidas Alcohólicas/psicología , Niño , Desarrollo Infantil , Femenino , Trastornos del Espectro Alcohólico Fetal/diagnóstico , Humanos , Madres/psicología , Pruebas Neuropsicológicas , Embarazo , Prevalencia , Factores de Riesgo , Sudáfrica/epidemiología
10.
Curr Opin Psychiatry ; 30(2): 108-112, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28125440

RESUMEN

PURPOSE OF REVIEW: This review aims to summarize data published in the scientific literature and available on official websites on fetal alcohol spectrum disorder (FASD) in Africa. RECENT FINDINGS: There is a paucity of published literature and evidence-based information on prenatal exposure to alcohol in the African continent and the majority of the continent's literature on FASD emanates from South Africa. A small number of scientific publications document FASD and drinking in pregnancy in other Sub-Saharan African countries and these findings provide evidence that FASD occurs across the continent. Further evidence shows that the world's highest reported rates of FASD occur in South Africa and that this confers a significant public health and neurodevelopmental disability burden on the region. There is an established body of epidemiological, diagnostic, neurobehavioral and neuroscientific knowledge from studies in South Africa. Universal and indicated case method preventions are effective in reducing maternal alcohol consumption in high-risk areas. Throughout Africa, a policy and service implementation gap exists that impedes translation of generated knowledge into effective prevention and intervention strategies. SUMMARY: FASD is likely a widely occurring and largely unrecognized neurodevelopmental disability in Africa. A key future direction for global agencies and research partnerships is to collaboratively address evidence gaps and knowledge translation through scalable approaches and strategies that aim to ameliorate the burden of FASD in African and other countries.


Asunto(s)
Países en Desarrollo , Trastornos del Espectro Alcohólico Fetal/diagnóstico , Trastornos del Espectro Alcohólico Fetal/epidemiología , África , Consumo de Bebidas Alcohólicas , Niño , Preescolar , Estudios Transversales , Diagnóstico Diferencial , Femenino , Humanos , Lactante , Recién Nacido , Tamizaje Masivo , Trastornos del Neurodesarrollo/diagnóstico , Trastornos del Neurodesarrollo/epidemiología , Embarazo , Sudáfrica
11.
Drug Alcohol Depend ; 168: 274-286, 2016 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-27736681

RESUMEN

BACKGROUND: The prevalence and characteristics of the continuum of diagnoses within fetal alcohol spectrum disorders (FASD) were researched in a fifth sample in a South African community. METHODS: An active case ascertainment approach was employed among all first grade learners in this community (n=862). Following individual examination by clinical geneticists/dysmorphologists, cognitive/behavioral testing, and maternal interviews, final diagnoses were made in multidisciplinary case conferences. RESULTS: Physical measurements, cardinal facial features of FAS, and total dysmorphology scores clearly differentiated diagnostic categories in a consistent, linear fashion, from severe to mild. Neurodevelopmental delays and behavioral problems were significantly worse for each of the FASD diagnostic categories, although not as consistently linear across diagnostic groups. Alcohol use was documented by direct report from the mother in 71% to 100% of cases in specific diagnostic groups. Significant distal maternal risk factors in this population are: advanced maternal age at pregnancy; low height, weight, and body mass index (BMI); small head circumference; low education; low income; and rural residence. Even when controlling for socioeconomic status, prenatal drinking correlates significantly with total dysmorphology score, head circumference, and five cognitive and behavioral measures. In this community, FAS occurs in 59-79 per 1,000 children, and total FASD in 170-233 per 1,000 children, or 17% to 23%. CONCLUSIONS: Very high rates of FASD continue in this community where entrenched practices of regular binge drinking co-exist with challenging conditions for childbearing and child development in a significant portion of the population.


Asunto(s)
Consumo de Bebidas Alcohólicas/epidemiología , Alcoholismo/epidemiología , Trastornos del Espectro Alcohólico Fetal/epidemiología , Complicaciones del Embarazo/epidemiología , Adolescente , Adulto , Consumo de Bebidas Alcohólicas/efectos adversos , Consumo de Bebidas Alcohólicas/psicología , Alcoholismo/psicología , Población Negra/psicología , Población Negra/estadística & datos numéricos , Desarrollo Infantil , Escolaridad , Femenino , Trastornos del Espectro Alcohólico Fetal/etiología , Trastornos del Espectro Alcohólico Fetal/patología , Humanos , Recién Nacido , Modelos Lineales , Masculino , Edad Materna , Madres/psicología , Madres/estadística & datos numéricos , Embarazo , Complicaciones del Embarazo/psicología , Prevalencia , Factores de Riesgo , Población Rural/estadística & datos numéricos , Sudáfrica/epidemiología , Adulto Joven
12.
Arch Clin Neuropsychol ; 31(7): 710-726, 2016 Nov 22.
Artículo en Inglés | MEDLINE | ID: mdl-27600446

RESUMEN

OBJECTIVE: This paper systematically reviews the literature on the effects of prenatal alcohol exposure (PAE) on episodic memory. Specifically, the review focuses on recurring questions of whether memory deficits are consistent across memory domains, whether the impairments are consistent across the stages of episodic memory, and whether the impairments are primary episodic memory impairments or secondary to a global performance deficit or a higher order deficit. METHOD: In total, 33 relevant studies were identified through searches on electronic databases. Journal articles were limited to those that included human subjects and that were published in English-language journals. RESULTS: The vast majority of reviewed studies examined memory in school-aged children and adolescents. Twenty-three studies examined verbal memory and 19 studies examined visual-spatial memory. Although all of the reviewed studies examined encoding of new material, only 10 studies examined retention of the learned material over time. Ten studies controlled for IQ, either statistically or with matched controls, when analyzing memory task performance. CONCLUSION: In general, studies show that PAE results in impaired verbal and visual-spatial episodic memory performance in affected individuals and these impairments are unlikely to be secondary to a global impairment. However, impairments on some memory tests are specific to the encoding stage, whereas retention is relatively spared; suggesting that the episodic memory deficit might be influenced, at least in part, by higher order cognitive processes.

13.
Pediatrics ; 138(2)2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-27464676

RESUMEN

The adverse effects of prenatal alcohol exposure constitute a continuum of disabilities (fetal alcohol spectrum disorders [FASD]). In 1996, the Institute of Medicine established diagnostic categories delineating the spectrum but not specifying clinical criteria by which diagnoses could be assigned. In 2005, the authors published practical guidelines operationalizing the Institute of Medicine categories, allowing for standardization of FASD diagnoses in clinical settings. The purpose of the current report is to present updated diagnostic guidelines based on a thorough review of the literature and the authors' combined expertise based on the evaluation of >10 000 children for potential FASD in clinical settings and in epidemiologic studies in conjunction with National Institute on Alcohol Abuse and Alcoholism-funded studies, the Collaborative Initiative on Fetal Alcohol Spectrum Disorders, and the Collaboration on FASD Prevalence. The guidelines were formulated through conference calls and meetings held at National Institute on Alcohol Abuse and Alcoholism offices in Rockville, MD. Specific areas addressed include the following: precise definition of documented prenatal alcohol exposure; neurobehavioral criteria for diagnosis of fetal alcohol syndrome, partial fetal alcohol syndrome, and alcohol-related neurodevelopmental disorder; revised diagnostic criteria for alcohol-related birth defects; an updated comprehensive research dysmorphology scoring system; and a new lip/philtrum guide for the white population, incorporating a 45-degree view. The guidelines reflect consensus among a large and experienced cadre of FASD investigators in the fields of dysmorphology, epidemiology, neurology, psychology, developmental/behavioral pediatrics, and educational diagnostics. Their improved clarity and specificity will guide clinicians in accurate diagnosis of infants and children prenatally exposed to alcohol.


Asunto(s)
Trastornos del Espectro Alcohólico Fetal/diagnóstico , Adolescente , Consumo de Bebidas Alcohólicas/efectos adversos , Niño , Preescolar , Diagnóstico Diferencial , Trastornos del Espectro Alcohólico Fetal/etiología , Humanos , Lactante , Recién Nacido , Conducta Materna , Pruebas Neuropsicológicas , Pediatría , Examen Físico , Rol del Médico , Sensibilidad y Especificidad
14.
Reprod Toxicol ; 63: 13-21, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-27174445

RESUMEN

OBJECTIVE: Determine any effects that maternal alcohol consumption during the breastfeeding period has on child outcomes. METHODS: Population-based samples of children with fetal alcohol spectrum disorders (FASD), normally-developing children, and their mothers were analyzed for differences in child outcomes. RESULTS: Ninety percent (90%) of mothers breastfed for an average of 19.9 months. Of mothers who drank postpartum and breastfed (MDPB), 47% breastfed for 12 months or more. In case control analyses, children of MDPB were significantly lighter, had lower verbal IQ scores, and more anomalies in comparisons controlling for prenatal alcohol exposure and final FASD diagnosis. Utilizing a stepwise logistic regression model adjusting for nine confounders of prenatal drinking and other maternal risks, MDPB were 6.4 times more likely to have a child with FASD than breastfeeding mothers who abstained from alcohol while breastfeeding. CONCLUSIONS: Alcohol use during the period of breastfeeding was found to significantly compromise a child's development.


Asunto(s)
Consumo de Bebidas Alcohólicas/epidemiología , Lactancia Materna , Desarrollo Infantil/efectos de los fármacos , Etanol/efectos adversos , Trastornos del Espectro Alcohólico Fetal/epidemiología , Efectos Tardíos de la Exposición Prenatal/epidemiología , Adulto , Niño , Femenino , Humanos , Pruebas de Inteligencia , Exposición Materna , Madres , Embarazo , Prevalencia , Sudáfrica/epidemiología
15.
Drug Alcohol Depend ; 159: 207-18, 2016 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-26774945

RESUMEN

BACKGROUND: Prevalence and characteristics of the continuum of diagnoses within fetal alcohol spectrum disorders (FASD) were researched in previously unstudied rural, agricultural, lower socioeconomic populations in South Africa (ZA). METHODS: Using an active case ascertainment approach among first grade learners, 1354 (72.6%) were consented into the study via: height, weight, and/or head circumference ≤ 25th centile and/or random selection as normal control candidates. Final diagnoses were made following: examination by pediatric dysmorphologists/geneticists, cognitive/behavioral testing, and maternal risk factor interviews. RESULTS: FASD children were significantly growth deficient and dysmorphic: physical measurements, cardinal facial features of FAS, and total dysmorphology scores clearly differentiated diagnostic categories from severe to mild to normal in a consistent, linear fashion. Neurodevelopmental delays were also significantly worse for each of the FASD diagnostic categories, although not as consistently linear across groups. Alcohol use is well documented as the proximal maternal risk factor for each diagnostic group. Significant distal maternal risk factors in this population are: low body weight, body mass, education, and income; and high gravidity, parity, and age at birth of the index child. In this low SES, highly rural region, FAS occurs in 93-128 per 1000 children, PFAS in 58-86, and, ARND in 32-46 per 1000. Total FASD affect 182-259 per 1000 children or 18-26%. CONCLUSIONS: Very high rates of FASD exist in these rural areas and isolated towns where entrenched practices of regular binge drinking co-exist with challenging conditions for childbearing and child development.


Asunto(s)
Trastornos del Espectro Alcohólico Fetal/epidemiología , Población Rural/estadística & datos numéricos , Adulto , Consumo de Bebidas Alcohólicas/epidemiología , Consumo de Bebidas Alcohólicas/psicología , Niño , Desarrollo Infantil , Femenino , Trastornos del Espectro Alcohólico Fetal/diagnóstico , Humanos , Madres/psicología , Pruebas Neuropsicológicas , Embarazo , Prevalencia , Factores de Riesgo , Sudáfrica/epidemiología
16.
Acta Neuropsychiatr ; 27(5): 251-69, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25780875

RESUMEN

OBJECTIVE: This paper reviews the magnetic resonance imaging (MRI) literature on the effects of prenatal alcohol exposure on the developing human brain. METHOD: A literature search was conducted through the following databases: PubMed, PsycINFO and Google Scholar. Combinations of the following search terms and keywords were used to identify relevant studies: 'alcohol', 'fetal alcohol spectrum disorders', 'fetal alcohol syndrome', 'FAS', 'FASD', 'MRI', 'DTI', 'MRS', 'neuroimaging', 'children' and 'infants'. RESULTS: A total of 64 relevant articles were identified across all modalities. Overall, studies reported smaller total brain volume as well as smaller volume of both the white and grey matter in specific cortical regions. The most consistently reported structural MRI findings were alterations in the shape and volume of the corpus callosum, as well as smaller volume in the basal ganglia and hippocampi. The most consistent finding from diffusion tensor imaging studies was lower fractional anisotropy in the corpus callosum. Proton magnetic resonance spectroscopy studies are few to date, but showed altered neurometabolic profiles in the frontal and parietal cortex, thalamus and dentate nuclei. Resting-state functional MRI studies reported reduced functional connectivity between cortical and deep grey matter structures. Discussion There is a critical gap in the literature of MRI studies in alcohol-exposed children under 5 years of age across all MRI modalities. The dynamic nature of brain maturation and appreciation of the effects of alcohol exposure on the developing trajectory of the structural and functional network argue for the prioritisation of studies that include a longitudinal approach to understanding this spectrum of effects and potential therapeutic time points.


Asunto(s)
Consumo de Bebidas Alcohólicas/efectos adversos , Encéfalo/efectos de los fármacos , Encéfalo/crecimiento & desarrollo , Trastornos del Espectro Alcohólico Fetal/patología , Neuroimagen/métodos , Efectos Tardíos de la Exposición Prenatal/patología , Adolescente , Encéfalo/embriología , Encéfalo/patología , Niño , Imagen de Difusión por Resonancia Magnética/métodos , Imagen de Difusión Tensora , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador , Lactante , Imagen por Resonancia Magnética/métodos , Embarazo , Efectos Tardíos de la Exposición Prenatal/etiología , Trastornos Relacionados con Sustancias/patología , Trastornos Relacionados con Sustancias/psicología
17.
Hum Brain Mapp ; 36(6): 2318-29, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25711175

RESUMEN

Children with prenatal alcohol exposure (PAE) may have cognitive, behavioral and brain abnormalities. Here, we compare rates of white matter and subcortical gray matter volume change in PAE and control children, and examine relationships between annual volume change and arithmetic ability, behavior, and executive function. Participants (n = 75 PAE/64 control; age: 7.1-15.9 years) each received two structural magnetic resonance scans, ~2 years apart. Assessments included Wechsler Intelligence Scale for Children (WISC-IV), the Child Behavior Checklist and the Behavior Rating Inventory of Executive Function. Subcortical white and gray volumes were extracted for each hemisphere. Group volume differences were tested using false discovery rate (q < 0.05). Analyses examined group-by-age interactions and group-score interactions for correlations between change in volume and raw behavioral scores. Results showed that subjects with PAE had smaller volumes than control subjects across the brain. Significant group-score interactions were found in temporal and parietal regions for WISC arithmetic scores and in frontal and parietal regions for behavioral measures. Poorer cognitive/ behavioral outcomes were associated with larger volume increases in PAE, while control subjects generally showed no significant correlations. In contrast with previous results demonstrating different trajectories of cortical volume change in PAE, our results show similar rates of subcortical volume growth in subjects with PAE and control subjects. We also demonstrate abnormal brain-behavior relationships in subjects with PAE, suggesting different use of brain resources. Our results are encouraging in that, due to the stable volume differences, there may be an extended window of opportunity for intervention in children with PAE.


Asunto(s)
Encéfalo/patología , Depresores del Sistema Nervioso Central/toxicidad , Etanol/toxicidad , Trastornos del Espectro Alcohólico Fetal/patología , Sustancia Gris/patología , Efectos Tardíos de la Exposición Prenatal/patología , Adolescente , Encéfalo/crecimiento & desarrollo , Niño , Cognición , Femenino , Trastornos del Espectro Alcohólico Fetal/psicología , Sustancia Gris/crecimiento & desarrollo , Humanos , Estudios Longitudinales , Imagen por Resonancia Magnética , Masculino , Pruebas Neuropsicológicas , Tamaño de los Órganos , Embarazo , Sustancia Blanca/patología
19.
Drug Alcohol Depend ; 133(2): 502-12, 2013 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-23932841

RESUMEN

BACKGROUND: Concise, accurate measures of maternal prenatal alcohol use are needed to better understand fetal alcohol spectrum disorders (FASD). METHODS: Measures of drinking by mothers of children with specific FASD diagnoses and mothers of randomly-selected controls are compared and also correlated with physical and cognitive/behavioral outcomes. RESULTS: Measures of maternal alcohol use can differentiate maternal drinking associated with FASD from that of controls and some from mothers of alcohol-exposed normals. Six variables that combine quantity and frequency concepts distinguish mothers of FASD children from normal controls. Alcohol use variables, when applied to each trimester and three months prior to pregnancy, provide insight on critical timing of exposure as well. Measures of drinking, especially bingeing, correlate significantly with increased child dysmorphology and negative cognitive/behavioral outcomes in children, especially low non-verbal IQ, poor attention, and behavioral problems. Logistic regression links (p<.001) first trimester drinking (vs. no drinking) with FASD, elevating FASD likelihood 12 times; first and second trimester drinking increases FASD outcomes 61 times; and drinking in all trimesters 65 times. Conversely, a similar regression (p=.008) indicates that drinking only in the first trimester makes the birth of a child with an FASD 5 times less likely than drinking in all trimesters. CONCLUSIONS: There is significant variation in alcohol consumption both within and between diagnostic groupings of mothers bearing children diagnosed within the FASD continuum. Drinking measures are empirically identified and correlated with specific child outcomes. Alcohol use, especially heavy use, should be avoided throughout pregnancy.


Asunto(s)
Consumo de Bebidas Alcohólicas/efectos adversos , Depresores del Sistema Nervioso Central/efectos adversos , Etanol/efectos adversos , Trastornos del Espectro Alcohólico Fetal/etiología , Adulto , Antropometría , Consumo Excesivo de Bebidas Alcohólicas/complicaciones , Depresores del Sistema Nervioso Central/sangre , Interpretación Estadística de Datos , Etanol/sangre , Función Ejecutiva , Femenino , Trastornos del Espectro Alcohólico Fetal/patología , Trastornos del Espectro Alcohólico Fetal/psicología , Humanos , Recién Nacido , Pruebas de Inteligencia , Madres , Pruebas Neuropsicológicas , Embarazo , Resultado del Embarazo , Primer Trimestre del Embarazo , Segundo Trimestre del Embarazo , Tercer Trimestre del Embarazo , Análisis de Regresión , Encuestas y Cuestionarios , Escalas de Wechsler
20.
J Dev Behav Pediatr ; 34(5): 314-25, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23751886

RESUMEN

OBJECTIVE: To provide an analysis of multiple predictors of cognitive and behavioral traits for children with fetal alcohol spectrum disorders (FASDs). METHOD: Multivariate correlation techniques were used with maternal and child data from epidemiologic studies in a community in South Africa. Data on 561 first-grade children with fetal alcohol syndrome (FAS), partial FAS (PFAS), and not FASD and their mothers were analyzed by grouping 19 maternal variables into categories (physical, demographic, childbearing, and drinking) and used in structural equation models (SEMs) to assess correlates of child intelligence (verbal and nonverbal) and behavior. RESULTS: A first SEM using only 7 maternal alcohol use variables to predict cognitive/behavioral traits was statistically significant (B = 3.10, p < .05) but explained only 17.3% of the variance. The second model incorporated multiple maternal variables and was statistically significant explaining 55.3% of the variance. Significantly correlated with low intelligence and problem behavior were demographic (B = 3.83, p < .05) (low maternal education, low socioeconomic status [SES], and rural residence) and maternal physical characteristics (B = 2.70, p < .05) (short stature, small head circumference, and low weight). Childbearing history and alcohol use composites were not statistically significant in the final complex model and were overpowered by SES and maternal physical traits. CONCLUSIONS: Although other analytic techniques have amply demonstrated the negative effects of maternal drinking on intelligence and behavior, this highly controlled analysis of multiple maternal influences reveals that maternal demographics and physical traits make a significant enabling or disabling contribution to child functioning in FASD.


Asunto(s)
Alcoholismo/epidemiología , Trastornos del Espectro Alcohólico Fetal/epidemiología , Madres/estadística & datos numéricos , Efectos Tardíos de la Exposición Prenatal/epidemiología , Adulto , Alcoholismo/complicaciones , Niño , Femenino , Trastornos del Espectro Alcohólico Fetal/etiología , Trastornos del Espectro Alcohólico Fetal/fisiopatología , Humanos , Masculino , Valor Predictivo de las Pruebas , Embarazo , Efectos Tardíos de la Exposición Prenatal/etiología , Efectos Tardíos de la Exposición Prenatal/fisiopatología , Sudáfrica/epidemiología
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