Long-term prognosis of adverse cardiovascular events in patients with chronic heart failure depending on the RS1143634 polymorphism of the interleukin-1 gene

The course and prognosis of chronic heart failure (CHF) are associated with the activation of inflammatory cascades, the severity of which is genetically determined.Aim: To analyze adverse cardiovascular events in patients with chronic heart failure over 5 years depending on the rs1143634 polymorphism of the interleukin-1β gene.Material and Methods. Clinical signs were studied, genotyping was carried out at the polymorphic locus rs1143634 of the IL-1β gene in patients with CHF of ischemic origin (n = 445, average age 66.4 ± 10.4 years). Information on patient outcomes over 5 years was obtained by telephone interview with endpoints: all-cause death, cardiovascular death, fatal and non-fatal cardiovascular events formed a composite endpoint. Time to event was analyzed using the Kaplan-Meier method; hazard ratio - Cox regression. Statistical processing was carried out in the Jamovi, R 4.3.1 programs.Results and conclusions. The occurrence of genotypes of the rs1143634 polymorphism of the IL-1β gene in patients with CHF and the genetic control group did not differ and was commensurate with the theoretically expected Hardy-Weinberg equilibrium. Carriers of the TT genotype were characterized by a high level of inflammation and the development of myocardial infarction at a young age. In patients with CHF of the TT genotype, the risk of death from all causes is 2.85 times higher, achieving the combined endpoint is 3.3 times higher, fatal cerebral stroke is 17.1 times higher compared to CC, 14.9 times higher than compared to ST genotype. In patients with CHF and chronic kidney disease of the TT genotype, the risk of death from cerebral stroke is 29.33 times higher than the CC genotype, and 29.12 times higher for the CT genotype. In patients with CHF in combination with diabetes mellitus, the frequency of hospitalizations due to cardiac decompensation in the TT genotype is higher than in the CC and CT genotypes (χ2 = 6.33, p = 0.042).chronic heart failure; rs1143634 polymorphism of the IL-1β gene; prognosis; cardiovascular complications