The importance of atherosclerotic lesions of the coronary arteries in the development of cardiac arrhythmias in ischemic heart disease in patients with type 2 diabetes mellitus

Aim . To analyze the relationship between coronary artery damage and the development of changes in cardiac rhythm and conductivity in patients with chronic coronary heart disease and type 2 diabetes mellitus. Material and methods . A cross-sectional retrospective observational study was conducted among 222 patients with diagnosed coronary artery disease, the patients were divided into 2 groups: 126 patients with coronary artery disease and type 2 diabetes and 96 patients with coronary artery disease without carbohydrate metabolism disorders. Statistical processing was performed using IBM SPSS Statistics Version 25.0, nonparametric statistical methods were used. Results . In patients of the main group, there was a more frequent association of right coronary artery lesions with the presence of atrioventricular block (p = 0,021) and right bundle branch block (p = 0,019). Conclusion . The analysis demonstrated that in patients with coronary heart disease in combination with type 2 diabetes, coronary artery disease is an important link in the pathogenetic chain of cardiac arrhythmias and conduction disorders. The results obtained emphasize the need to use comprehensive methods to assess the risk of arrhythmias in patients with various clinical variants of coronary heart disease, especially in the presence of concomitant metabolic disorders such as type 2 diabetes mellitus.