Comparison of Intensive Care Unit Scoring Systems in Predicting Overall Mortality of Sepsis Patients

Introduction Predictive scoring systems are applied in intensive care units(ICU) to monitor patients' response to treatment and guide treatment modalities.These scoring systems are also used as predictors in sepsis where mortality is high.This study aims to compare the discussed scores (APACHE II, SOFA, SAPS II, OASIS) in their role of predicting overall mortality in patients admitted to ICU with a diagnosis of sepsis or septic shock. Methods Among 740 patients admitted to the tertiary intensive care unit within 2 years, 165 patients diagnosed with sepsis and septic shock were included in the study. Demographic data, comorbidities, SOFA, SAPS-2, OASIS and APACHE II scores, invasive or noninvasive mechanical ventilation requirement and duration, ICU admission, hospital stay and 28-day mortality were retrospectively evaluated. Results All scoring systems were positively correlated with mortality and CCI score. OASIS correlated with ICU admission time and duration of mechanical ventilation.When the role of mortality scoring systems was evaluated, APACHE was found to be the lowest, while SOFA, OASIS and SAPS were found to be the highest. Conclusion SAPS II and OASIS have a higher correlation with mortality compared to others.