Objective: The aim of this study is to estimate significance of preoperative clinical and demographic data and risk factors in prediction of short-term mortality in older patients after major non cardiac surgery.
Methods: This prospective, one-center, observational study entered 81 patients undergoing major non-cardiac surgery at Clinical Center Nis, Serbia. The initial clinical assessment of patients involved medical history, physical examination, cardiac ultrasonography, general haematology and biochemical tests, pulse oximetry, and chest X-ray. Patients were followed by the consulting physicians until discharge or up to 30 days after surgery. The end-point of study was to estimate all-cause mortality.
Results: The research included 81 patients (42 women – 51. 90% and 39 men – 48.10%). Average age was 71.30 ± 6.62 years. Within 30 days, 14 patients died in the tested population (17.30%). Ventricular fibrillation happened in six patients (10.9%) without risk factors, three patients with one risk factor (23.10%) and six patients with two risk factors (46.20%). A statistically significant difference was determined in the frequency of ventricular fibrillation in relation to the number of risk factors (X2 = 7.728, p = 0.021). Five patients (9.10%) without risk factors died, three patients (23.10%) with one risk factor and six patients (46.20%) with two risk factors. A statistically significant difference was determined in the frequency of fatal outcome in relation to the number of risk factors (X2 = 9.078, p = 0.011).
Conclusion: Patients with only two of large palette of preoperative risk factors have statistically significant higher short-term mortality.
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