Features of cognitive disorders in patients with primary episodes of bipolar affective disorder

Abstract

The aim of the work was to study the features of cognitive disorders in the primary episode of bipolar affective disorder, taking into account the gender factor and clinical variant. Materials and methods. 153 patients with primary episode of bipolar affective disorder: with prevalence of depressive symptomatology (44 men and 75 women), with prevalence of manic symptoms (15 men and 8 women) and with simultaneous presence of depressive and manic symptomatology or with rapid or severe manic symptoms and 5 women) were examined using the Stroop test. Results and discussion. In patients with the depressed primary episode variant, a general slowdown in the performance of all four subtests of the Stroop test was detected: reading time of the names of colors printed in black font (TNFb) in all patients 63.7±8.1 sec., in men 65.0±9.6 sec., in women 63.0±7.0 sec.; names of colors (NС) were respectively 96.6±9.2 sec, 96.5±9.1 sec and 96.6±9.3; reading time of color names where the font color is different from the word value (TNCd) – respectively 153.5±20.3 sec., 153.8±23.3 sec., 153.3±18.6 sec.; name of the word color where the font color is different from the word value (NCWd) – 62.6±7.9 sec., 63.8±9.3 sec. and 61.9±6.9 sec. In patients with a manic variant, the time to perform the Strup test is the smallest of all groups: TNFb – 44.3±4.0 sec., 44.5±4.1 sec. and 43.8±4.1 sec.; NC – 62.7±4.9 sec., 61.7±5.5 sec. and 64.6±3.2 sec.; TNCd – 116.2±9.5 sec., 118.0±10.5 sec. and 112.9±6.4 sec.; NCWd – 43.3±4.0 sec., 43.5±4.1 sec. and 42.8±4.1 sec, respectively. In patients with mixed variant indicators occupy an intermediate position: TNFb – 59,8±16,1 sec., 57,3±14,6 sec. and 62.8±19.0 sec.; NC – 79.1±10.1 sec., 76.5±10.3 sec. and 82.2±10.0 sec.; TNCd – 124.3±22.5 sec., 120.7±18.9 sec. and 128.6±27.7 sec.; NCWd – 58.5±15.7 sec., 56.2±14.3 sec. and 61.4±18.5 sec. in accordance. Gender differences in Stroop test performance are not significant. Conclusions. The primary episode of BAD is characterized by the presence of cognitive impairment, the structure and expressiveness of which is determined by the clinical variant. In the depressive variant revealed the greatest overall slowdown in the execution of the Stroop test with a significant number of errors, with manic - deterioration of attention, behavioral inhibition and maximal impulse control when mixed - a marked slowdown in the performance of the Stroop test with a significant number of errors. Gender differences in cognitive impairment are insignificant