Clinical symptoms and performance on the continuous performance test in children with attention deficit hyperactivity disorder between subtypes: a natural follow-up study for 6 months

<p>Abstract</p> <p>Background</p> <p>The aims of this study were to determine the time course of improvements in attention deficit hyperactivity disorder (ADHD) clinical symptoms and neurocognitive function in a realistic clinical setting, and the differences in ADHD symptom improvement using different classifications of ADHD subtypes.</p> <p>Methods</p> <p>The Child Behavior Checklist (CBCL) was completed by parents of ADHD children at the initial visit. The computerized Continuous Performance Test (CPT), Swanson, Nolan, and Pelham, and Version IV Scale for ADHD (SNAP-IV), and ADHD Rating Scale (ADHD-RS) were performed at baseline, one month, three months, and six months later, respectively. Patient care including drug therapy was performed at the discretion of the psychiatrist. The ADHD patients were divided into DSM-IV subtypes (Inattentive, Hyperactive-impulsive and Combined type), and were additionally categorized into aggressive and non-aggressive subtypes by aggression scale in CBCL for comparisons.</p> <p>Results</p> <p>There were 50 ADHD patients with a mean age of 7.84 ± 1.64 years; 15 of them were inattentive type, 11 were hyperactive-impulsive type, and 24 were combined type. In addition, 28 of the ADHD patients were grouped into aggressive and 22 into non-aggressive subtypes. There were significant improvements in clinical symptoms of hyperactivity and inattention, and impulsivity performance in CPT during the 6-month treatment. The clinical hyperactive symptoms were significantly different between ADHD patients sub-grouping both by DSM-IV and aggression. Non-aggressive patients had significantly greater changes in distraction and impulsivity performances in CPT from baseline to month 6 than aggressive patients.</p> <p>Conclusions</p> <p>We found that ADHD symptoms, which included impulsive performances in CPT and clinical inattention and hyperactivity dimensions, had improved significantly over 6 months under pragmatic treatments. The non-aggressive ADHD patients might have a higher potential for improving in CPT performance than aggressive ones. However, it warrant further investigation whether the different classifications of ADHD patients could be valid for predicting the improvements in ADHD patients' clinical symptoms and neurocognitive performance.</p

Prevalence of attention deficit hyperactivity disorder in schoolchildren in the city of Salvador, Bahia, Brazil Prevalência do transtorno de déficit de atenção e hiperatividade em escolares na cidade do Salvador, Bahia, Brasil

BACKGROUND: Attention deficit hyperactivity disorder (ADHD) is the most common neuropsychiatric disorder of infancy and one of the most prevalent chronic diseases found in schoolchildren. OBJECTIVE: To evaluate the prevalence of ADHD in schoolchildren through the use of a questionnaire responded by school-teachers. METHOD: A total of 774 children enrolled in the public and private school systems were evaluated. The diagnostic instrument used was a Teacher ADHD scale. RESULTS: Results showed that 6.7% of children were considered highly likely to have the disorder. Of the more severe cases of ADHD, the hyperactive-impulsive subtype was more frequently identified in girls, while the inattentive subtype was more prevalent among boys. CONCLUSION: The symptoms of attention deficit in hyperactive children may be underestimated by teachers since the symptoms of hyperactivity are more noticeable and disruptive.<br>INTRODUÇÃO: O transtorno de déficit de atenção e hiperatividade (TDAH) é o distúrbio neuropsiquiátrico mais comum na infância, estando, também, entre as doenças crônicas mais prevalentes em crianças escolares. OBJETIVO: Estimar a prevalência do TDAH em escolares através de inquérito com professores. MÉTODO: Foram avaliadas 774 crianças, matriculados na rede pública e privada de ensino. O instrumento diagnóstico utilizado foi a Escala de TDAH versão para professores. RESULTADOS: Estimou-se que 6,7% das crianças apresentavam alta probabilidade de apresentar o distúrbio. Dentre os casos mais severos de TDAH o subtipo hiperativo-impulsivo foi mais prevalente nos escolares do sexo feminino, enquanto o subtipo desatento foi mais prevalente entre as crianças do sexo masculino. CONCLUSÃO: Os sintomas do déficit de atenção em crianças hiperativas podem ser subestimados pelos professores visto que os sintomas da hiperatividade são mais disruptivos e visíveis

Estudo piloto da prevalência do transtorno de déficit de atenção e hiperatividade entre crianças escolares na cidade do Salvador, Bahia, Brasil A pilot study of prevalence of hyperactivity and attention deficit disorder in scholar children in Salvador, Bahia, Brazil

O presente estudo se propõe a estimar a prevalência do transtorno de déficit de atenção e hiperatividade (TDAH) em escolares através de inquérito com professores. Foi realizado um estudo piloto baseado no total de alunos do ensino fundamental, em escolas da rede pública e privada da cidade do Salvador, BA. O instrumento diagnóstico utilizado foi a Escala de TDAH versão para professores. Oito crianças (5,3%) apresentavam alta probabilidade de ter o subtipo predominantemente desatento, três escolares (2%) apresentavam alta probabilidade de apresentar o subtipo predominantemente hiperativo/impulsivo e uma criança (0,6%) apresentava alta probabilidade de apresentar o subtipo combinado. Crianças com TDAH podem ter sérios problemas de funcionamento social. O problema não se resume aos déficits trazidos pela doença, mas à associação co-mórbida com outros transtornos, que pode resultar em comprometimento social grave. O reconhecimento precoce e o manejo adequado do TDAH pode redirecionar o desenvolvimento educacional e psicossocial dessas crianças.<br>This study aims to estimate the prevalence of attention deficit hyperactivity disorder (ADHD) in scholar children through a teacher's questionnaire. A pilot study was conducted based in the total number of students under high school, in public and private schools in Salvador, Bahia, Brazil. The instrument used was Teacher's version of ADHS scale. Eight kids (5.3%) were recognized as highly probability of attention deficit disorder, three (2%) with high probability of subtype hyperactive/impulsive, and one (0.6%) as combined subtype. Children with ADHD might have serious social problems, not only brought by the disorder, but also due to co morbidity with other disorders, leading to serious social withdrawn. Early diagnostic and treatment of ADHD might improve educational and psychosocial development of these kids