Society of Diabetic Nephropathy Prevention Journal of Preventive Epidemiology 2476-3934 2 2 2017 07 01 The incidence of pressure ulcer in old patients undergoing open heart surgery and the relevant factors e15 e15 EN Mojtaba Senmar Jalil Azimian Hossein Rafiei Mitra Habibollahpour Fatemeh Yousefi Journal Article 2017 04 09 2017 06 12 Introduction: The proportion of old inpatients in cardiac intensive care units (CICUs) is increasing. Objectives: This study was conducted to determine the relationship of hemodynamic and oxygenation status with the risk of pressure ulcers following open heart surgery in old patients. Patients and Methods: The present descriptive study was conducted over three months in 2016 on 48 patients selected using convenience sampling. The data collection tools included a three-part demographic information checklist, hemodynamic clinical data collection forms, oxygenation clinical data collection forms and the Braden scale. The data collected were analyzed in SPSS using descriptive tests, the independent t test and Pearson’s correlation coefficient. Results: Of the 48 patients, 28 (58.3%) were male and 20 (41.7%) were female. The mean age of the patients was 68.16 ± 5.53 years and their mean length of stay was 2.95 ± 0.96 days. All the pressure ulcers were stage 1 and 2. The incidence of pressure ulcers in these patients was found to have statistically significant relationships with the mean heart rate on the second day (P = 0.01), the mean arterial carbon dioxide level on the fourth day (P = 0.02), diabetes (P = 0.01) and smoking (P = 0.001), while it lacked statistically significant relationships with the other hemodynamic and oxygenation variables studied. Conclusion: Old patients undergoing open heart surgeries are at a high risk of the incidence and development of pressure ulcers. Thus, factors such as diabetes, smoking, heart rate and arterial carbon dioxide level affect the incidence of these ulcers.