trauma | The Journal of Critical Care Medicine

Can APACHE II, SOFA, ISS, and RTS Severity Scores be Used to Predict Septic Complications in Multiple Trauma Patients?

Sebastian Trancă¹, Cristina Petrișor¹, Natalia Hagău¹, Constantin Ciuce²

1 Department of Anaesthesia and Intensive Care II, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, Romania
2 Surgical Department I, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, Romania

DOI: 10.1515/jccm-2016-0019

Background: Physiological composite scores are used to predict mortality in multiple trauma patients. Sepsis is the leading cause of late mortality in trauma victims brought about by immune suppression due to homeostasis dysregulation.
Objective: To determine whether APACHE II, SOFA, ISS and RTS scores can predict the occurrence of sepsis in multiple trauma patients.
Methods: APACHE II, SOFA, ISS, and RTS scores were calculated during the first twenty-four hours after the injury for sixty-four adult poly-traumatic patients. The occurrence of infectious complications was investigated over a fourteen-day period. The infection-free rates for the multiple trauma patients were considered as end-points in the Kaplan-Meier plot analysis.
Results: For SOFA, a cutoff score of 4 points was identified as a predictor of the occurrence of sepsis, with 89% of the patients with SOFA<4 being infection-free, while 37% of those with SOFA>4 were infection-free (p<0.01). None of the patients with APACHE II≤5 points developed infections. Eighty-four percent of patients with APACHE II scores of 5-10 did not develop sepsis, while 49% with APACHE II≥11 were infection-free (p<0.01). A cutoff of 7 points was found to be most discriminative for RTS. Eighty-eight percent of the patients with RTS≥7 and 43% of those with RTS<7 were infection-free (p<0.01). Eighty-eight percent of patients with ISS<22 did not develop sepsis and 56% with ISS≥22 did not develop sepsis (p<0.01).
Conclusion: APACHE II, SOFA, ISS, and RTS functional severity scores can predict mortality as well as the occurrence of sepsis in multiple trauma patients.

Background: Trauma in its early stages leads to an acute inflammatory condition affecting all cellular lines. Neutrophil granulocytes make up the largest population of human white blood cells and are fundamental to the innate immune system. The objective of our pilot study was to evaluate neutrophil death and viability alterations in critically ill trauma patients in correlation with their clinical outcome.
Material and method: Critical ill trauma patients were enrolled in the study. In order to assess alterations in cellular death, blood samples were drawn using EDTA containing tubes and analyzed in the first twenty four hours after admission, then after forty eight and seventy two hours. Annexin V was used as a marker for apoptotic cells and propidium iodide for necrotic cells.
Results: The first two cases exhibited an increase in cellular viability by the second day as shown by a small increase in neutrophil apoptosis and a decrease in neutrophil necrosis. These patients progressed to a positive clinical outcome. The second two cases showed slight modifications in either physiological or pathological cellular death, and increasing levels of cellular necrosis. These patients progressed to a negative clinical outcome.
Conclusions: These cases suggest that neutrophil cell viability and death were associated with the patient’s clinical outcome.