Dependence of cardiovascular diseases mortality on helioseismic indicators in the Sheki region of the Azerbaijan Republic

Abstract

Aim. To study the dependence of cardiovascular diseases mortality on geophysical and seismic indicators in the Sheki region of the Azerbaijan Republic.Material and methods. In 2013, seismological information was obtained from 35 telemetry stations, which included a review of the seismic setting of the republic, the distribution of seismic waves, the dynamics of seismic processes, the intensity of earthquakes, magnitude, etc. Based on the spatial distribution of the focal zones identifi ed by weak seismicity and the magnitudes of the maximum possible earthquakes in them, a map of the seismic hazard of the territory of Azerbaijan was compiled. To analyze the connection with diseases in the Sheki region, 742 case histories of patients (48.8% — 362 men and 51.2% — 380 women) who died in 2013 from various diseases, were analyzed.Results and discussion. Statistically signifi cant (p < 0.001), more deaths among men were from acute coronary syndrome (63.3%), from acute heart failure (46.0%) and from hypertensive crisis (HС) (45.3%). 59.3% died from acute cerebrovascular accident, 54.7% died from a hypertensive crisis and 54,0% from acute heart failure among women. Statistically signifi cant number of deaths was in the age range of 70–79 years old and 80–89 years old.The largest number of deaths was at a depth of 11–20 km — 20.6%, 21–30 km — 16.7%, less than 10 km — 10.5%. When the depth of the process was less than 10 km, the largest percentage of mortality was from acute coronary syndrome — 24.4%, with the depth of 11–20 km — from hypertensive process (40.5%); 24.2% died from heart failure.Conclusion. Thus, there is a close correlation between geomagnetic changes and CVD mortality in Sheki region of Azerbaijan. It is realized in the form of an increase in the frequency of cases and deaths, and the number of these cases is highly dependent on patients’ age.