The results of screening for main sleep disorders in patients with myocardial infarction at the hospital stage

I ntrodu cti on. Insomnia and syndrome of obstructive sleep apnea (SOAS) are the two most important sleep disorders, which increase the risk of development and progression of myocardial infarction (MI), but are very poorly diagnosed in clinical practice. Aim. To determine the frequency, structure of major sleep disorders and their relationship with the course of MI. Materials and methods. The study included 34 people with MI at the inpatient stage of rehabilitation, who were examined in accordance with clinical recommendations, a detailed survey and questionnaire on the Pittsburgh scale modified by Ya.I. Levin were performed to detect insomnia, a STOP-BANG scale was used to assess the risk of SOAS. Results. 22 men (64.7%) and 12 women (35.3%) with MI were examined. The age median was 63.5 (LQ = 56; UQ = 69) years. Initially, complaints of sleep disturbances were registered in 16 (47%) people; based on the results of a detailed questioning, 27 (79.4%) respondents already noted symptoms of insomnia. The frequency of insomnia with obvious and borderline sleep disorders determined due to Levin’s form amounted to 67.7%. Insomnia was significantly more common in women than in men. Medium and high risk of SOAS was identified in 58.8% and 23.5% of individuals, accordingly. Sleep duration was positively correlated with Simpson ejection fraction (r = 0.41) and hemoglobin concentration (r = 0.38). A relationship was identified between the values on the STOP BANG scale and body mass index (r = 0.37), waist circumference (r = 0.44), and leukocyte level (r = -0.36). Scores determined by the STOP BANG scale were higher in the group of patients with MI without ST elevation (Zadj. = -2.1; p = 0.037). Conclusions. Insomnia and a high risk of SOAS in patients with MI are more common than in the population and affect the course of MI, so it is important to promptly identify and correct these conditions.