الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Trauma is mechanical damage to the body caused by an external force. It is the disease of young and the leading cause of death in the first four decades of life.
Trauma scoring systems are routinely used to evaluate and monitor traumatic injury outcomes. It is done in order to reduce the number of preventable deaths .Trauma and injury severity score (TRISS) is a combination index based on Revised Trauma Score (RTS), Injury Severity Score (ISS), and patient’s age. APACHE IV was developed by remodeling APACHE III with the same physiological variables and weights but different predictor variables and refined statistical methods
This study aimed to compare the performances of Trauma-Injury Severity Score and Acute Physiology and chronic health Evaluation IV score in predicting mortality of poly-trauma patients.
This study was conducted on one hundred (100) of seriously injured (Poly-traumatized patients) attending to the Emergency Department (ED) of the Menoufia University Hospital from April 2016 to April 2017 All the patients selected according to inclusion and exclusion were clinically assessed and managed through (ATLS) protocol including: 1. Primary survey. 2. Secondary survey. 3. Investigations.
Evaluation using both TRISS &APACHE IV scores were carried out at the same setting with no time interval during the first 24 hours after resuscitation and ICU admission. The results of this study within the limitations of this study shown that:
The majority of our patients were males 74 (74%) with and mean age (37.9± 5.9).
The most common cause of injury was road traffic accident (RTA) (71%).
Most of studied patients (75%) had been subjected to conservative treatment.
Most of studied patients (77%) of patients had been survived.
There was statistically significant difference noted between survived and dead patients regarding sex (p=0.031), Vital signs (p=0.001).
There was no statistically significant difference noted between survived and dead patients regarding age (p=0.768), mechanism of injury (p=0.252).
The best cut off value of TRISS score for prediction of mortality among studied patients is 32.5% with sensitivity (the ability to predicting mortality) of 96% and specificity (the ability to exclude mortality) of 98%,and accuracy 97%.
The best cut off value of APACHE IV score for prediction of mortality among studied patients is 32% with sensitivity of 84% and specificity of 96%and accuracy 93%.
TRISS score has significant positive correlation with APACHE IV score (0.818).
The results of our study, give us the support to use both TRISS and APACHE IV scores for mortality prediction in critically ill trauma patients but TRISS more better and more applicable than APACHE IV.
The results of this study were discussed and compared with other studies.