Background. The incidence of abdominal aortic aneurysm has been estimated at 20-40 cases per 100,000 per annum. The disease is often asymptomatic; in many cases, its first symptom is shock caused by a ruptured aneurysm. The aim of the present study was to assess retrospectively the selected perioperative factors in patients hospitalised in the intensive care unit (ICU) after repair of ruptured abdominal aortic aneurysm. Methods. Analysis involved medical records of patients after repair of ruptured abdominal aortic aneurysm treated in ICU in the years 2009-2010. Patients were divided into two groups: group I -survivors who were discharged from ICU and group II -non-survivors. Demographic factors, intraoperative data, vital parameters, laboratory results and severity of patient's state on admission to ICU were analysed. Results. Analysis of laboratory results on admission to ICU showed lower values of pH and HCO 3 -concentrations