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The test battery used in this study, which is commonly used to evaluate mental status both in adults and children, did not show any negative effect of isotretinoin on executive functional parameters in acne patients.

The authors investigated the parameters for predicting epileptiform abnormalities in a group of children diagnosed with attention-deficit/hyperactivity disorder (ADHD). The sample consisted of 148 subjects aged between 6 and 13 (8.76 ± 1.26; 25.7% female) years. Subtypes of ADHD and comorbid psychiatric disorders were defined according to DSM-IV criteria. The Wechsler Intelligence Scale for Children-Revised was applied to all patients. Most of the subjects (89.2%) had wakefulness and sleep electroencephalography examinations lasting about one hour. The authors found out that the coexistence of speech sound disorder (odds ratio [OR] 3.90, 95% confidence interval [CI]: 1.61-9.48) and higher Digit Span test performance (OR 1.24, 95% CI: 1.06-1.44) predicted the presence of accompanying epileptiform abnormalities. The prevalence of epileptiform abnormalities was 26.4%, and they were frequently localized in the frontal (41%) and centrotemporal (28.2%) regions. Higher percentage of speech sound disorder co-occurrence (64%) in subjects with rolandic spikes suggests that epileptiform abnormalities associated with ADHD can be determined genetically at least in some cases. Pathophysiology of epileptiform abnormalities in ADHD might have complex genetic and maturational background.

Anti-N-methyl-d-aspartate (anti-NMDA) receptor encephalitis is an autoimmune/paraneoplastic encephalitis, with neurologic and psychiatric symptoms. Early and aggressive therapy has been shown to improve prognosis although problems with executive functions and memory have continued for several years. A 15-year-old girl had a history of initial symptoms including behavioral difficulties, poor attention, and frequent seizures progressing to a catatonia-like state, 2.5 months after onset of initial symptoms. Anti-NMDA receptor antibodies were detected in serum and cerebrospinal fluid. Subsequent to treatment with methylprednisolone starting 3 months after onset, motor skills, responsiveness, self-care, and speech improved rapidly. Her neuropsychologica profile assessed after 2 months showed global difficulties predominantly in attention, executive functions, memory, and visual perception, which moderately recovered in the 7th and 24th months, respectively. Contrary to current literature supporting the positive impact of early immunomodulatory therapy, a dramatic resolution of major neurologic and psychiatric symptoms was detected with steroid treatment given in the late phase.

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