Angiopathy and Stroke Associated with Homocystinuria in Childhood.

A previously healthy 13 year-old boy presented with acute-onset headaches, aphasia and right-sided hemiparesis. Imaging showed cerebral ischemic infarction due to bilateral carotid occlusion, and investigation for stroke etiology diagnosed homocystinuria. Homocystinuria is an autosomal recessive condition that affects the metabolism of the amino acid methionine due to an enzyme deficiency. This disorder involves multiple organs systems, and complications include thromboembolic events, ectopia lentis, mental retardation, and skeletal abnormalities. The early diagnosis and treatment of hyperhomocystinemia can significantly improve outcomes. Therefore, metabolic screening for homocystinuria is strongly recommended for children presenting with stroke.

Neurological, cognitive and learning evaluation of students who were born preterm / Avaliação neurológica, cognitiva e de aprendizagem de escolares nascidos prematuros

ABSTRACT Objective: To evaluate the cognitive and academic profile of preterm newborns at school age and to determine the factors related to prematurity and sociodemographic profile that influence these results. Methods: Patients aged 6-14 years old that were assisted in the preterm follow-up clinic were recruited. The cognitive, academic, and neurological capacities were accessed through a detailed evaluation with a child neurologist, a neuropsychologist and a psychopedagogue. Neonatal data were collected from patient records. Results: 97 children were included and 14 were excluded from the study, resulting in 83 children. Gestational age (GA) was 30±3 weeks and weight at birth was 1138g (605 to 4185g). Poor performance was shown in 38.4% for writing, 57.5% for reading and 42.5% for mathematics. The mean total intelligence quotient (IQ) was 96±14.9 points, and 10.9% were considered altered. Children with unstructured families presented 78.3% of failure in reading tests (p=0.029). The multivariate analysis showed association between GA at birth and classic mini-mental score (p=0.043), total IQ (p=0.047), perceptual organization IQ (p=0.035), and processing speed IQ (p=0.036). There was also association between weight at birth and the classic (p=0.004) and adapted (p=0.007) mini-mental scores; invasive mechanic ventilation duration and classic mini-mental (p=0.049); and lower maternal age and processing speed IQ (p=0.033). Conclusions: Preterm infants at school age had high frequency of failure in cognitive and academic evaluation tests. Learning difficulties are high among them. Multiple neonatal variables are related with altered cognitive and students development.

RESUMO Objetivo: Avaliar o perfil de desenvolvimento cognitivo e acadêmico de recém-nascidos pré-termo em idade escolar e indicar os fatores relacionados à prematuridade e ao perfil sociodemográfico que influenciam esse resultado. Métodos: Recrutaram-se pacientes com idades entre 6 e 14 anos que fizeram seguimento no ambulatório de acompanhamento de prematuros. As capacidades cognitiva, acadêmica e neurológica foram acessadas por avaliação pormenorizada com neuropediatra, neuropsicóloga e psicopedagoga. Buscaram-se os dados neonatais nos prontuários. Resultados: Foram incluídos 97 recém-nascidos pré-termo e excluídos 14, resultando em 83 crianças. A idade gestacional foi 30±3 semanas e o peso de nascimento 1138g (605; 4185g). Tiveram mau desempenho em escrita 38,4%, leitura 57,5% e matemática 42,5%. A média de quociente de inteligência total foi de 96,0±14,9 pontos, sendo 10,9% considerados alterados. Crianças com famílias desestruturadas apresentaram 78,3% de falha de leitura (p=0,029). Pela regressão multivariada, houve relação entre idade gestacional ao nascimento e pontuação no miniexame do estado mental (minimental) clássico (p=0,043), quociente de inteligência total (p=0,047), quociente de inteligência organização perceptual (p=0,035) e quociente de inteligência velocidade de processamento (p=0,036); entre peso ao nascer e minimental clássico (p=0,004) e adaptado (p=0,007); entre tempo de ventilação mecânica invasiva e minimental clássico (p=0,049); e entre idade materna mais baixa e quociente de inteligência velocidade de processamento (p=0,033). Conclusões: Os recém-nascidos pré-termo apresentaram alta frequência de falha nos testes de avaliação cognitiva e acadêmica. Uma série de intercorrências neonatais apresenta associação com alterações no desenvolvimento cognitivo e escolar.

Neurological, cognitive and learning evaluation of students who were born preterm.

OBJECTIVE: To evaluate the cognitive and academic profile of preterm newborns at school age and to determine the factors related to prematurity and sociodemographic profile that influence these results. METHODS: Patients aged 6-14 years old that were assisted in the preterm follow-up clinic were recruited. The cognitive, academic, and neurological capacities were accessed through a detailed evaluation with a child neurologist, a neuropsychologist and a psychopedagogue. Neonatal data were collected from patient records. RESULTS: 97 children were included and 14 were excluded from the study, resulting in 83 children. Gestational age (GA) was 30±3 weeks and weight at birth was 1138g (605 to 4185g). Poor performance was shown in 38.4% for writing, 57.5% for reading and 42.5% for mathematics. The mean total intelligence quotient (IQ) was 96±14.9 points, and 10.9% were considered altered. Children with unstructured families presented 78.3% of failure in reading tests (p=0.029). The multivariate analysis showed association between GA at birth and classic mini-mental score (p=0.043), total IQ (p=0.047), perceptual organization IQ (p=0.035), and processing speed IQ (p=0.036). There was also association between weight at birth and the classic (p=0.004) and adapted (p=0.007) mini-mental scores; invasive mechanic ventilation duration and classic mini-mental (p=0.049); and lower maternal age and processing speed IQ (p=0.033). CONCLUSIONS: Preterm infants at school age had high frequency of failure in cognitive and academic evaluation tests. Learning difficulties are high among them. Multiple neonatal variables are related with altered cognitive and students development.