Description

Asensio et al developed a model for predicting postoperative wound infection in a patient with traumatic injury of the femoral blood vessels. This can help identify patients who may require prophylactic antibiotic therapy or closer monitoring. The authors are from Los Angeles County and the University of Southern California Medical Center.


Wound infections occurred in 15% of the study group of 204 patients (predominantly male)

 

Parameters:

(1) coagulopathy noted in the operating room (OR)

(2) intimal disruption in a femoral artery

(3) bony fracture

(4) reverse saphenous vein graft performed on a femoral artery

(5) fasciotomies performed on the calf

 

Parameter

Finding

Points

coagulopathy noted in OR

absent

0

 

present

1

intimal disruption in artery

absent

0

 

present

1

bony fracture

absent

0

 

present

1

saphenous vein graft

absent

0

 

present

1

fasciotomies on the calf

absent

0

 

present

1

 

X =

= (2.4617 * (points for coagulopathy)) + (2.3420 * (points for intimal disruption)) + (1.8405 * (points for bony fracture)) + (1.4597 * (points for graft)) + (1.1051 * (points for fasciotomies)) - 4.0796

 

probability of post-operative wound infection =

= 1 / (1 + EXP((-1) * X))


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