Introduction: Cardiovascular diseases, despite preventive measures, represent one of the leading public health problems in Croatia and in the world, and ischemic heart disease is the leading among them. The regional differences that are evident in the approach to diagnostics, and the comparative development and concentration of health centers in urban areas, indicate that rural areas are lagging behind in the development of adequate health care. The aim of this research is to examine the frequency of ischemic heart disease as an indication for treatment in the General Hospital and the Hospital of Veterans of the Homeland War in Ogulin, and to determine the basic epidemiological characteristics of patients affected by this disease. Subjects and methods: This quantitative retrospective study included a total of 732 patients who were treated under the diagnosis of IBS in the Ogulin General Hospital in the period from January 1, 2014. Until 31.12.2023. years. The data for the research was collected from the hospital information system. Results: The findings indicate a higher prevalence of IBS among men and the elderly, and a seasonal pattern of disease onset with a peak in the cold months. Also, the high percentage of patients transported to other clinical centers emphasizes the need to strengthen the capacity of local hospitals. Conclusions: Research conducted at the Ogulin General Hospital and Veterans of the Patriotic War Hospital provides important insights into the incidence, demographic characteristics, seasonality, and clinical manifestations of IBS. These results have significant implications for health policy and clinical practice, and highlight the need for further research to improve treatment outcomes and quality of life in patients with IBS.