Аннтотация

© 2018 ABV-Press Publishing House. All rights reserved. Background. Memory and attention deficits are prevalent in the chronic pain population. There are multiple common mechanisms in chronic pain and cognitive impairment. However, the presence, prevalence and clinical burden of such impairment are frequently underestimated. Objective: to evaluate subjective and objective cognitive deficits in patients with chronic migraine (CM). Materials and methods. We recruited 53 subjects with CM and 22 gender- and age-matched controls with low-frequency episodic migraine (a maximum of 4 headache days per month) aged 18-59. All patients filled in the HADS (Hospital Anxiety and Depression Scale) anxiety and depression scale and Pittsburg Sleep Quality Inventory (PSQI). Cognitive function was assessed with Montreal Cognitive Assessment (MoCA), Digital Symbol Substitution Test (DSST), Rey Auditory Verbal Learning Test (RAVLT) and the Perceived Deficits Questionnaire (PDQ-20). Results. 56 % of patients with CM complained of memory problems. Decreased cognitive function was also observed during self-assessment using the PDQ-20 questionnaire. Objectively, we found a significant decrease in 90-second DSST results and RAVLT total recall and learn ing rates. 44 % of subjects with CM scored lower than 26 points on MoCA. Most frequently we found impairments in attention (75 %), memory/delayed recall (50 %), language (50 %) and executive function (37 %). Depression and sleep quality correlated with only several parameters of cognitive tests. Conclusion. Subjective and objective cognitive deficits are prevalent in the CM population. Most often memory and attention are impaired. Cognitive complaints need to be carefully assessed, and treatment of such impairment may improve quality of life and decrease disability in CM.