Relationship Between Shock Index and Clinical Outcome in Patients with Multiple Traumas

Background: Initial assessment of hemodynamic parameters and timely management of patients regarding hypovolemic shock occurrence is the most essential clinical action in trauma patients and shock index (SI) has considerable accuracy associated with wide application. Therefore, this study is planned to evaluate the relationship of the shock index and clinical outcome in patients with multiple trauma referring to Shahid Sadoughi Hospital of Yazd in 2011.Methods: The present study was a descriptive cross-sectional study carried out on 334 patients with multiple trauma referring to Emergency Center of Shahid Sadoughi Hospital of Yazd in 2011. Patients were divided into two separate groups based on Shock index score (≥ 0.9 as abnormal SI and < 0.9 as normal SI).Finally, data were analyzed using Chi-square and independent sample t-test in SPSS ver.19.Results: There was significant difference between the two groups in terms of mean of and gender distribution (P= 0.001). There was also a significant difference between patients with head and neck trauma and pelvic injuries in terms of frequency distribution (P< 0.05). Hemodynamic parameters were also significantly different in the two studied groups (P< 0.001). Also, with regard to the frequency distribution of intensive care unit admission (ICU) and mortality rate, there was significant difference in the two groups.Conclusion: Shock index has considerable predictive value in patients with multiple trauma and can be used in initial management and assessment of patients with multiple trauma before any other diagnostic procedures since it is easily calculated. Shock index can also rapidly diagnose the real condition of trauma patient in primary hours and prevent secondary unpleasant clinical outcomes.