[Features of cognitive impairment in bipolar affective disorder]

The study of cognitive impairment in bipolar disorder (BD) combined with anxiety-phobic disorders, as the most common comorbid pathology, is a new, little-studied and relevant direction for further research on BD, promising for clarifying the neurobiological mechanisms of the disease and improving the quality of the diagnostic process. By searching for combinations of the keywords «bipolar disorder», «anxiety disorders», «cognitive impairment», «cognitive dysfunction», «meta-analysis» and «review» in the databases «PubMed» and «Google Scholar», meta-analyses, analytical, review and original relevant research articles were identified. A generalization of the information accumulated in the literature indicates a) the presence in BD of both phase-dependent and persistent cognitive impairments that also occur during the period of euthymia, b) different structure and severity of neurocognitive disorders in cases of «pure» BD and anxiety-phobic disorders, c) the unique structure of cognitive impairment in BD with comorbid anxiety-phobic disorders, which incorporates the features of neurocognitive impairments that are characteristic of both disorders and have the greatest severity compared to them. The results of this review are of interest for planning further empirical studies of this topic on the Russian patient population.