Transtorno do déficit de atenção e hiperatividade: contribuição diagnóstica de avaliação computadorizada de atenção visual

OBJECTIVE: To investigate if performances in a visual attention test could discriminate between children and adolescents with ADHD and normal subjects. METHODS: 102 children and adolescents diagnosed with ADHD according to DSM-IV were submitted to the Test of Visual Attention (TAVIS-III) and had their performance compared to 678 normal paired subjects who comprised a control comparison group. All of the subjects were sequentially recruited from one public and two private schools, following parents authorization. RESULTS: ROC curves analysis have shown that simultaneous impairment in hit reaction time of focused attention, omission errors in shifted attention and commission errors in sustained attention revealed high sensibility and specificity, with positive predictive value of 87.5%. The negative predictive value was of 99% when the aforementioned indexes occurred simultaneously within normal range. CONCLUSION: The Test of Visual Attention (TAVIS-III) was efficient to discriminate persons with ADHD and normal persons in this non clinical sample.OBJETIVO: Identificar se o desempenho num teste de atenção visual permite diferenciar crianças e adolescentes portadoras de TDAH de indivíduos normais. MÉTODOS: 102 crianças e adolescentes com diagnóstico de TDAH, segundo os critérios do DSM-IV, submeteram-se ao Teste de Atenção Visual (TAVIS-III) e tiveram seus desempenhos comparados a 678 controles pareados de um grupo controle. Os indivíduos foram selecionados de duas escolas particulares e uma escola pública, de modo seqüencial com autorização dos pais. RESULTADOS: Uma análise com curvas ROC revelou que os índices tempo médio de reação na tarefa de atenção seletiva, número de erros por omissão na tarefa de atenção alternada e número de erros por ação na tarefa de atenção sustentada, quando comprometidos simultaneamente, revelaram sensibilidade e especificidade elevadas, com um valor preditivo positivo de 87,5%. O valor preditivo negativo da associação de escores normais naqueles três índices foi de 99%. CONCLUSÃO: TAVIS-III revelou-se eficiente para discriminar indivíduos normais de portadores de TDAH nesta amostra

Dissecting the Shared Genetic Architecture of Suicide Attempt, Psychiatric Disorders, and Known Risk Factors

Background Suicide is a leading cause of death worldwide, and nonfatal suicide attempts, which occur far more frequently, are a major source of disability and social and economic burden. Both have substantial genetic etiology, which is partially shared and partially distinct from that of related psychiatric disorders. Methods We conducted a genome-wide association study (GWAS) of 29,782 suicide attempt (SA) cases and 519,961 controls in the International Suicide Genetics Consortium (ISGC). The GWAS of SA was conditioned on psychiatric disorders using GWAS summary statistics via multitrait-based conditional and joint analysis, to remove genetic effects on SA mediated by psychiatric disorders. We investigated the shared and divergent genetic architectures of SA, psychiatric disorders, and other known risk factors. Results Two loci reached genome-wide significance for SA: the major histocompatibility complex and an intergenic locus on chromosome 7, the latter of which remained associated with SA after conditioning on psychiatric disorders and replicated in an independent cohort from the Million Veteran Program. This locus has been implicated in risk-taking behavior, smoking, and insomnia. SA showed strong genetic correlation with psychiatric disorders, particularly major depression, and also with smoking, pain, risk-taking behavior, sleep disturbances, lower educational attainment, reproductive traits, lower socioeconomic status, and poorer general health. After conditioning on psychiatric disorders, the genetic correlations between SA and psychiatric disorders decreased, whereas those with nonpsychiatric traits remained largely unchanged. Conclusions Our results identify a risk locus that contributes more strongly to SA than other phenotypes and suggest a shared underlying biology between SA and known risk factors that is not mediated by psychiatric disorders.Peer reviewe

Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study

Summary Background Congenital anomalies are the fifth leading cause of mortality in children younger than 5 years globally. Many gastrointestinal congenital anomalies are fatal without timely access to neonatal surgical care, but few studies have been done on these conditions in low-income and middle-income countries (LMICs). We compared outcomes of the seven most common gastrointestinal congenital anomalies in low-income, middle-income, and high-income countries globally, and identified factors associated with mortality. Methods We did a multicentre, international prospective cohort study of patients younger than 16 years, presenting to hospital for the first time with oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis, exomphalos, anorectal malformation, and Hirschsprung’s disease. Recruitment was of consecutive patients for a minimum of 1 month between October, 2018, and April, 2019. We collected data on patient demographics, clinical status, interventions, and outcomes using the REDCap platform. Patients were followed up for 30 days after primary intervention, or 30 days after admission if they did not receive an intervention. The primary outcome was all-cause, in-hospital mortality for all conditions combined and each condition individually, stratified by country income status. We did a complete case analysis. Findings We included 3849 patients with 3975 study conditions (560 with oesophageal atresia, 448 with congenital diaphragmatic hernia, 681 with intestinal atresia, 453 with gastroschisis, 325 with exomphalos, 991 with anorectal malformation, and 517 with Hirschsprung’s disease) from 264 hospitals (89 in high-income countries, 166 in middleincome countries, and nine in low-income countries) in 74 countries. Of the 3849 patients, 2231 (58·0%) were male. Median gestational age at birth was 38 weeks (IQR 36–39) and median bodyweight at presentation was 2·8 kg (2·3–3·3). Mortality among all patients was 37 (39·8%) of 93 in low-income countries, 583 (20·4%) of 2860 in middle-income countries, and 50 (5·6%) of 896 in high-income countries (p<0·0001 between all country income groups). Gastroschisis had the greatest difference in mortality between country income strata (nine [90·0%] of ten in lowincome countries, 97 [31·9%] of 304 in middle-income countries, and two [1·4%] of 139 in high-income countries; p≤0·0001 between all country income groups). Factors significantly associated with higher mortality for all patients combined included country income status (low-income vs high-income countries, risk ratio 2·78 [95% CI 1·88–4·11], p<0·0001; middle-income vs high-income countries, 2·11 [1·59–2·79], p<0·0001), sepsis at presentation (1·20 [1·04–1·40], p=0·016), higher American Society of Anesthesiologists (ASA) score at primary intervention (ASA 4–5 vs ASA 1–2, 1·82 [1·40–2·35], p<0·0001; ASA 3 vs ASA 1–2, 1·58, [1·30–1·92], p<0·0001]), surgical safety checklist not used (1·39 [1·02–1·90], p=0·035), and ventilation or parenteral nutrition unavailable when needed (ventilation 1·96, [1·41–2·71], p=0·0001; parenteral nutrition 1·35, [1·05–1·74], p=0·018). Administration of parenteral nutrition (0·61, [0·47–0·79], p=0·0002) and use of a peripherally inserted central catheter (0·65 [0·50–0·86], p=0·0024) or percutaneous central line (0·69 [0·48–1·00], p=0·049) were associated with lower mortality. Interpretation Unacceptable differences in mortality exist for gastrointestinal congenital anomalies between lowincome, middle-income, and high-income countries. Improving access to quality neonatal surgical care in LMICs will be vital to achieve Sustainable Development Goal 3.2 of ending preventable deaths in neonates and children younger than 5 years by 2030

Neuropsicologia dos transtornos alimentares: revisão sistemática da literatura Neuropsychology of eating disorders: a systematic review of the literature

ANTECEDENTES: A etiologia dos transtornos alimentares (TA) ainda não se encontra estabelecida. Dentre os diversos fatores envolvidos, a hipótese de uma disfunção do sistema nervoso central tem sido explorada de diversas maneiras. Assim, a avaliação neuropsicológica de pacientes com TA tem por finalidade investigar a ocorrência de déficits cognitivos associados a estas patologias. OBJETIVOS: O objetivo deste artigo é avaliar o estado atual das investigações sobre a avaliação neuropsicológica em pacientes com TA. MÉTODOS: Foi realizada uma pesquisa bibliográfica - utilizando as seguintes bases de dados como estratégias de procura: MedLINE, PsychoINFO, LILACS e Cochrane Data Bank -, procurando artigos relacionados ao tema e publicados até o ano de 2004. RESULTADOS: A anorexia nervosa é o transtorno alimentar que conta com mais estudos neuropsicológicos e, de uma forma geral, os resultados apontam para déficits de atenção, déficits viso-espaciais e de viso-construção. Na bulimia nervosa, as alterações mais encontradas são déficits de atenção seletiva e das funções executivas. O transtorno da compulsão alimentar periódica ainda não conta com estudos neuropsicológicos até o momento. Após um tratamento bem-sucedido do transtorno alimentar, embora haja uma diminuição dos déficits cognitivos, algumas alterações cognitivas parecem persistir. CONCLUSÕES: Os transtornos alimentares parecem estar associados a algum grau de disfunção neuropsicológica, muito embora as funções específicas que se apresentam deficitárias variem entre os estudos encontrados, talvez em decorrência de variações metodológicas. O fato de que, após o tratamento, alguns pacientes apresentem uma melhora no funcionamento cognitivo poderia indicar que, em alguns casos, os déficits seriam funcionais. A ausência de melhora no funcionamento cognitivo de alguns pacientes, após diversas formas de intervenção, pode sugerir que estes déficits antecederiam o desenvolvimento dos transtornos alimentares, podendo, assim, contribuir para seu desenvolvimento ou para um pior prognóstico. O melhor delineamento do perfil cognitivo dos pacientes com transtorno alimentar torna-se importante para orientar abordagens terapêuticas mais seletivas.BACKGROUND: The pathophysiology of eating disorders is still unknown, with many factors possibly involved. The existence of a central nervous system (CNS) dysfunction is being investigated with particular interest. One of the most employed strategies to reach this goal is the evaluation of cognitive functioning of patients with eating disorders with neuropsychological tests. OBJECTIVE: To evaluate the current knowledge about the neuropsychology of ED. METHODS: We performed a review of several data bases (including MedLINE, PsychoINFO, LILACS and Cochrane Data Bank), using terms related to main theme of interest. The review comprised articles published up to January, 2004. RESULTS: Anorexia Nervosa (AN) was t­ ­ he most studied ED from the neuropsychological point-of-view, with studies tending to elicit attentive, visuo-spatial, and visuo-constructive deficits among such patients. On the other side, patients with Bulimia Nervosa (BN) exhibited déficits in the selective aspects of attention and in executive functions. As yet, there is no study covering the neuropsychological aspects of binge-eating disorder. After successful treatment, individuals show improvement of some cognitive deficits, while other seem to persist. CONCLUSIONS: The ED are possibly associated with a certain degree of neuropsychological dysfunction, even though there is no consesus with regard to which function is particularly impaired. The fact that some cognitive dysfunction tend to disappear after treatment argues in favor of the hypothesis that these are functional deficits. Other deficits, however, tend to persist, suggesting that they may precede the development of eating disorders or even contribute to their development or to a worse prognosis. The study of the neuropsychological aspects of ED may help tailoring more selective therapeutic approaches to patients suffering from these disorders

Assessment of executive functions in obese individuals with binge eating disorder Avaliação de funções executivas em indivíduos obesos com transtorno da compulsão alimentar periódica

OBJECTIVE: The aim of this study was to assess executive functions of obese individuals with binge eating disorder. METHOD: Thirty-eight obese individuals with binge eating disorder were compared to thirty-eight obese controls without binge eating disorder in terms of their executive functions. All individuals were assessed using the following instruments: Digit Span, Trail Making Tests A and B, Stroop Test and the Wisconsin Card Sorting Test. In addition, four subtests from the Behavioral Assessment of the Dysexecutive Syndrome Battery were also used, namely the Zoo Map Test, the Modified Six Elements Test, the Action Program Test and the Rule Shift Cards Test. RESULTS: When compared to obese controls, obese individuals with binge eating disorder presented significant impairment in the following tests: Digit Span backward, Zoo Map Test, Modified Six Elements Test, and Action Program Test. Subjects with binge eating disorder also showed significant more set shifting and perseverative errors in the Wisconsin Card Sorting Test. In other measures such as the Digit Span Forward, the Trail Making Test, the Stroop Test and the Rule Shift Cards Test, obese subjects with binge eating disorder did not differ significantly from obese subjects without binge eating disorder. CONCLUSION: These results suggest that, in the present sample, obese individuals with binge eating disorder presented executive deficits, especially impairments relating to problem-solving, cognitive flexibility and working memory.OBJETIVO: O objetivo desse estudo foi avaliar as funções executivas de indivíduos obesos com transtorno da compulsão alimentar periódica. MÉTODO: Trinta e oito indivíduos obesos com transtorno da compulsão alimentar periódica foram comparados com 38 controles obesos sem transtorno da compulsão alimentar periódica em termos de suas funções executivas. Todos os indivíduos foram avaliados utilizando os seguintes instrumentos: Digit Span, Trail Making Tests A e B, Stroop Test e Wisconsin Card Sorting Test. Adicionalmente, quatro subtestes da Behavioral Assessment of the Dysexecutive Syndrome Battery foram também utilizados, a saber: Zoo Map Test, Modified Six Elements Test, Action Program Test e The Rule Shift Cards Test. RESULTADOS: Quando comparados a controles obesos, indivíduos obesos com transtorno da compulsão alimentar periódica apresentaram déficits significativos no Digit Span Backward, Zoo Map Test, Modified Six Elements Test e no Action Program Test. Os indivíduos com transtorno da compulsão alimentar periódica também apresentaram significativamente mais erros perseverativos e de mudança de set no Wisconsin Card Sorting Test. Em outras medidas, tais como Digit Span Forward, Trail Making Test, Stroop Test e The Rule Shift Cards Test, os indivíduos obesos com transtorno da compulsão alimentar periódica não diferiram significativamente dos obesos sem transtorno da compulsão alimentar periódica. CONCLUSÃO: Esses resultados sugerem que, neste estudo, os indivíduos obesos com transtorno da compulsão alimentar periódica apresentaram déficits executivos evidenciados por dificuldades na capacidade para resolução de problemas, na flexibilidade cognitiva e na memória operacional

Virtual Reality as a Promising Strategy in the Assessment and Treatment of Bulimia Nervosa and Binge Eating Disorder: A Systematic Review

Several lines of evidence suggest that Virtual Reality (VR) has a potential utility in eating disorders. The objective of this study is to review the literature on the use of VR in bulimia nervosa (BN) and binge eating disorder (BED). Using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement for reporting systematic reviews, we performed a PubMed, Web of Knowledge and SCOPUS search to identify studies employing VR in the assessment and treatment of BN and BED. The following search terms were used: “virtual reality”, “eating disorders”, “binge eating”, and “bulimia nervosa”. From the 420 articles identified, 19 were selected, nine investigated VR in assessment and 10 were treatment studies (one case-report, two non-controlled and six randomized controlled trials). The studies using VR in BN and BED are at an early stage. However, considering the available evidence, the use of VR in the assessment of those conditions showed some promise in identifying: (1) how those patients experienced their body image; and (2) environments or specific kinds of foods that may trigger binge–purging cycle. Some studies using VR-based environments associated to cognitive behavioral techniques showed their potential utility in improving motivation for change, self-esteem, body image disturbances and in reducing binge eating and purging behavior

Review of literature of attention-deficit/hyperactivity disorder with comorbid eating disorders Revisão da literatura sobre a comorbidade do transtorno do déficit de atenção e hiperatividade com transtornos alimentares

OBJECTIVE: According to studies of prevalence, up to 70% of adults with attention deficit/hyperactivity disorder have at least one psychiatric comorbidity, which leads to diagnostic and therapeutic difficulties as well as more severe functional impairment. There is a paucity of data on the comorbidity of attention deficit/hyperactivity disorder and eating disorders. The objective of this study was to review the literature regarding the attention deficit/hyperactivity disorder/eating disorders comorbidity, performing a critical analysis of relevant data. METHOD: Articles in Medline, Lilacs, SciELO, ISI and PsycINFO databases from 1980 up to 2008, were searched. The references from the articles were used as additional sources of data. RESULTS: Fourteen articles were found: five prevalence studies, four case reports, three case-control studies, one symptom-assessment study of attention deficit/hyperactivity disorder and eating disorders, and one article regarding possible causes of the association between attention deficit/hyperactivity disorder and eating disorders. These articles suggested that adult women with attention deficit/hyperactivity disorder are at higher risk of developing eating disorders, especially bulimia nervosa. Bulimia Nervosa rates found in attention deficit/hyperactivity disorder groups ranged from 1% to 12%, versus 0% to 2% in control groups. CONCLUSIONS: Although there seems to be a relationship between attention deficit/hyperactivity disorder and eating disorders, the reduced number of studies available, with various methodologies, and small sample sizes limit the generalization of the findings.OBJETIVO: De acordo com os estudos de prevalência de comorbidades, até 70% dos adultos com transtorno do déficit de atenção e hiperatividade apresentam pelo menos uma comorbidade psiquiátrica, ocasionando dificuldades diagnósticas e terapêuticas, bem como um maior prejuízo funcional. Existem poucos estudos sobre a comorbidade entre transtorno do déficit de atenção e hiperatividade e transtornos alimentares. O objetivo deste estudo foi realizar uma revisão da literatura sobre a comorbidade transtorno do déficit de atenção e hiperatividade/transtornos alimentares, realizando uma análise crítica dos dados encontrados. MÉTODO: Procedeu-se a uma revisão sistemática da literatura por meio de pesquisa bibliográfica de artigos publicados no período de 1980 a 2008, utilizando as bases de dados Medline, Lilacs, SciELO, ISI e PsycINFO. RESULTADOS: Foram identificados 14 artigos, sendo cinco estudos de prevalência de comorbidades, quatro relatos de casos, três estudos caso-controle, um estudo de avaliação de sintomas de transtorno do déficit de atenção e hiperatividade e de transtornos alimentares e um sobre as possíveis causas da associação entre transtorno do déficit de atenção e hiperatividade e transtornos alimentares. Os artigos identificados evidenciaram maior risco de desenvolvimento de transtornos alimentares, especialmente bulimia nervosa, em mulheres portadoras de transtorno do déficit de atenção e hiperatividade. As taxas de bulimia nervosa encontradas nos grupos com transtorno do déficit de atenção e hiperatividade variaram de 1% a 12%, enquanto que nos grupos controle foram de 0% a 2%. CONCLUSÕES: Embora pareça existir uma relação entre transtorno do déficit de atenção e hiperatividade e transtornos alimentares, a escassez de trabalhos existentes, com metodologias variadas e pequenas amostras avaliadas não permitem a generalização dos resultados