|dc.description.abstract||In recent years, in connection with the rapid development of modern surgery and the expansion of the possibilities for surgical treatment of various diseases, which previously did not have effective surgical treatments or where surgical options were limited, there has been a growing demand for surgical treatment in patients of various age demographics. For various reasons, there has been an increase in injury rates among different demographics, which also calls for development of effective surgical treatment methods for pediatric, adult and geriatric patients. Nurses and physicians  of surgical departments must clearly distinguish the specific aspects of providing medical and nursing care to patients depending on their age, which is especially true in an emergency surgery setting [2, 7, 8, 30, 39], as well as the specific aspects of patient safety [43, 45, 46]. The teamwork of nurses and physicians is vitally important in surgery of all age groups [11, 27, 42], taking into consideration all social aspects  of these issues. High level surgical interventions require appropriate human resources and technical training of nurses and physicians.
The main aim of the study is to investigate the specific aspects of healthcare in surgical patients of various age groups and to conduct a comparative analysis of the number of lethal outcomes and postoperative complications in surgical patients of different age groups.
As a result of this research study, we have reviewed the special characteristics of nursing care in surgical patients of various age groups, defined the age groups in surgery and investigated the specific aspects of disease at different ages. We have defined the main stages in surgical treatment of patients of different age groups, investigated the types of postoperative complications and the specific aspects of their treatment in various age groups of surgical patients. We have also performed a comparative analysis of the number of lethal outcomes and postoperative complications in surgical patients of various age groups.||uk