Ressources et utilitaires

Scoring systems for ICU and surgical patients:

ISS - RTS - TRISS (Injury Severity Score - Revised Trauma Score - Trauma Injury Severity Score)


Variables Severity level (help) Points
Head and neck
Face
Chest
Abdomen, pelvic contents
Extremity, pelvic girdle
External
 
ISS =
Respiratory rate (per min)
Systolic blood pressure (mmHg)
Glasgow coma scale (help)

RTS
=
Age
(Pediatric cases (Ages < 15) use the blunt model for both blunt and penetrating mechanisms of injury.)

Predicted death rate (blunt)
TRISS
=



Predicted death rate (penetrating)
TRISS
=
ISS = Sum ((three most weighted region injury)2).
ISS equals 75 for any patient with an AIS 6 injury.
TRISS (blunt): Logit =-0.4499 + RTS*0.8085 + ISS*-0.0835 + (age.points)*-1.7430
Predicted death rate = 1/(1 + eLogit)
TRISS (penetrating): Logit =-2.5355 + RTS*0.9934 + ISS*-0.0651 + (age.points)*-1.1360
Predicted death rate = 1/(1 + eLogit)
RTS = Sum ((resp.rate.points)*0.2908; (sbp.points)*0.7326; (Glasgow.points)*0.9368)

 References

 

Definitions

The current definition of ISS as used in the TRISS model incorporates AIS 6 severity - described in the AIS Manual (AIS-90)

Recommendations For Uniform Reporting of Data following Major Trauma - The Utstein Style (An Initiative)
International Trauma Anaesthesia and Critical Care Society (ITACCS) Initiative
http://pdm.medicine.wisc.edu/itaccs.htm 

Blunt injury : Non-penetrating, but including crush, laceration, amputation and asphyxia.
Penetrating injury : Bullet, knife, or spike. 

Back to TRISS

Eyes Open Verbal Motor
Spontaneous
To speech
To pain
Absent
Converses / Oriented
Converses / Disoriented
Inappropriate
Incomprehensible
Absent
Obeys
Localizes pain
Withdraws (flexion)
Decorticate (flexion) rigidity
Decerebrate (extension) rigidity
Absent

Glasgow=

Back to TRISS