Một nghiên cứu từ Israel phát hiện ra rằng trẻ em với SDB có điểm số thấp hơn về thử nghiệm nhận thức thần kinh so với điều khiển nhưng điểm số cải thiện sau khi điều trị (23). Nghiên cứu tiềm năng của 39 trẻ em từ 5-9 tuổi đã trải qua một loạt các bài kiểm tra nhận thức thần kinh có chứa quy mô thông minh quá trình theo định hướng. | 268 Pelayo and Li A study from Israel found that children with SDB had lower scores on neuro-cognitive testing compared to controls but the scores improve after treatment 23 . This prospective study of 39 children aged five to nine years underwent a battery of neurocognitive tests containing process-oriented intelligence scales. Children with SDB had lower scores compared with healthy children in some Kaufman Assessment Battery for Children K-ABC subtests and in the general scale Mental Processing Composite indicating impaired neurocognitive function. Six to 10 months after adenotonsillectomy the children with OSAs demonstrated significant improvement in sleep characteristics as well as in daytime behavior. Their neurocognitive performance improved considerably reaching the level of the control group in the subtests Gestalt Closure Triangles Word Order and the Matrix analogies as well as in the K-ABC general scales Sequential and Simultaneous Processing scales and the Mental Processing Composite scale. The authors concluded neurocognitive function is impaired in otherwise healthy children with SDB. Most functions improve to the level of the control group indicating that the impaired neurocognitive functions are mostly reversible at least 3 to 10 months following adenotonsillectomy 23 . An abrupt and persistent deterioration in grades must also raise the question of abnormal sleep and SDB 20 21 50 51 . In schools the tiredness and sleepiness may be labeled as inattentiveness in class daydreaming or not being there 22 52 . Concerns about school performance were raised in the original description of OSA syndrome in children 3 . More recently the possible association between SDB learning problems and attention-deficit disorder has been studied 8 18 19 21 22 52-56 . A study by Gozal et al. examined the hypothesis that domains of neurobehavioral function would be selectively affected by SDB. They study children with reported symptoms of attention-deficit hyperactivity .