[The problem of comorbid disorders in attention deficit hyperactivity disorder in children and adolescents: clinical cases]. / Problema komorbidnykh rasstroistv pri sindrome defitsita vnimaniya s giperaktivnost'yu u detei i podrostkov i ikh korrektsiya: klinicheskie nablyudeniya.

The problem of comorbid disorders in attention deficit hyperactivity disorder (ADHD) is considered, which occur in at least 60% of patients and lead to additional difficulties in intra-family, school and social adaptation. Children and adolescents with ADHD have a wide range of neurological and somatic disorders caused by complex polygenic pathogenetic mechanisms. Among the pathologies associated with ADHD in this cohort of children, neurotic and anxiety manifestations, motor disorders: dyspraxia, discoordination, impaired gross and fine motor skills, tics, behavioral disorders, enuresis, tension cephalgia are common disorders. Treatment of ADHD should be pathogenetic, taking into account the main symptoms of ADHD and manifestations of comorbid disorders, since it is quite long. When choosing pharmacotherapy, it is preferable to use drugs with verified efficacy not only in the correction of ADHD, but also concomitant behavioral, motor and emotional disorders. Also an important aspect in the pediatric clinic is the use of drugs with a reliable safety profile.

[Imaging of brain activity using fMRI in a patient with subjective cognitive decline]. / Vizualizatsiya mozgovoi aktivnosti s pomoshch'yu fMRT u patsientki s sub"ektivnym kognitivnym snizheniem.

In clinical practice, subjective cognitive decline (SCD) is often difficult to diagnose because it is not detected by standard neuropsychological and cognitive tests.The described clinical case is presented to demonstrate the difficulties of diagnosis and treatment choice in a patient with SCD. fMRI might be considered as an instrumental method to analyze the functional relationship between the activity of brain structures and cerebral circulation in patients with SCD. Patient clinical and neuropsychological data with a detailed description of fMRI with a cognitive paradigm are presented. The article is focused on the early diagnosis of SCD and the prognostic assessment of the transition of SCD to dementia.

[Neurological manifestations of postcovid syndrome]. / Nevrologicheskie proyavleniya postkovidnogo sindroma.

The problem of postcovid syndrome (PCS) attracts great interest due to the wide prevalence and variety of clinical manifestations. The main neurological manifestations of PCS are considered. The information about the proposed mechanisms of the formation of PCS is given. The possibility of using the drug Mexidol for the treatment of patients with PCS is discussed.

Neurological Signs of Postcovid Syndrome.

The challenge of postcovid syndrome (PCS) is of great interest due to its wide distribution and variety of clinical signs. The main neurological signs of PCS are discussed. Data on the presumptive mechanisms forming PCS are presented. The potential for using the drug Mexidol to treat patients with PCS is addressed.