Portsmouth - POSSUM

(Physiologic and Operative Severity Score for the enUmeration of Mortality and Morbidity) 
Age
Glasgow (Help)
Respiratory

Urea

Pulse (beats/min)

Cardiac signs

Hb (g/dL)

W.B.C.

ECG

Potassium (mEql/L)

Sodium (mEql/L)

Systolic Blood Pressure

Physiologic Score


Operative Severity (Help)
Multiple procedures
Total Blood Loss
Peritoneal soiling
Cancer
Mode of surgery
Operative Score



  Predicted Death Rate
R= (0.1692 * physiologic score)+(0.1550 *operative score)-9.065
Predicted Death Rate = 1 / ( 1+ e(-R) )

 

References :

Copeland GP et al. POSSUM : a scoring system for surgical audit. Br J Surg. 1991;78:356-360.
Prytherch DR et al. POSSUM and Portsmouth POSSUM for predicting mortality. Br J Surg. 1998;85:1217-20
 

 Web page by : Jean-Yves Marandon Centre Chirurgical Marie Lannelongue (France)

 

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Moderate surgery : cholecystectomy, appendicectomy, mastectomy, transurethral resection of prostate
Major surgery : any laparotomy , bowel resection, cholecystectomy with choledochotomy, peripheral vascular procedure or major amputation
Major surgery + : any aortic procedure, abdominoperineal resection, pancreatic or liver resection, oesophagogastrectomy.

 

 

 

 

 

 

 

 

 

 

 

 

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=

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