Comparison of Simplified Acute Physiology Score-III and Mortality Probability Model-III in Trauma Patients

Document Type : Original Article (s)

Authors

1 Assistant Professor, Anesthesiology and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran

2 Professor, Anesthesiology and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran

3 Student of Medicine, Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Abstract

Background: Intensive care unit (ICU) is among the most important hospital wards. Variety of scoring systems for evaluation of patients' status and prediction of hospitalization outcomes in ICU has been raised that each has strong and weak points; assessment of these characteristics tends to promote new scoring systems. The current study compared scoring systems of Mortality Probability Model-III (MPM-III) and Simplified Acute Physiology Score-III (SAPS-III) in trauma patients in ICU.Methods: This randomized cross-sectional study was conducted on 200 patients admitted in ICU because of trauma in years 2016-17. Patients' information including demographics, mean of systolic, diastolic, and arterial blood pressure, pulse, respiratory rate, temperature, Glasgow coma scale (GCS), arterial gas analysis, white blood cell (WBC) counts, hematocrit, bilirubin, creatinine, type of admission, and presence of underlying diseases were extracted from records; MPM-III and SAPS-III were measured for these patients and compared.Findings: MPM-III scoring system had discrimination of 0.935 [95% confidence interval (95%CI): 0.89-0.97; P < 0.001) in cut-off point of 0.13, and its sensitivity and specificity was 87% and 84%, respectively. For SAPS-III system, in cut-off point of 0.13, the discrimination was 0.77 (95%CI: 0.69-0.85; P < 0.001), with the sensitivity of 80% and specificity of 68%. Based on both MPM-III and SAPS-III systems, mortality was in correlation with duration of ICU admission (P = 0.001 for both systems) and duration of intubation (P < 0.001 for both systems), while only for SAPS-III, total duration of hospitalization was in correlation with mortality (P < 0.001).Conclusion: MPM-III scoring system was superior to SAPS-III regarding discrimination power in trauma patients. In addition, based on both systems, mortality rate was in direct association with days of ICU admission and intubation duration.

Keywords

References

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Journal of Isfahan Medical School
Volume 37, Issue 522 - Serial Number 522
March and April 2019
Pages 350-356

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History

  • Receive Date: 21 November 2018
  • Revise Date: 01 November 2024
  • Accept Date: 06 April 2022

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