Kulaylat et al reported a score for predicting mortality following colectomy for Clostridium difficile colitis. This is based on the CARDS score of Kassam et al. The authors are from Pennsylvania State University, Massachusetts Institute of Technology and OpenBiome in Medford, Massachusetts.
Patient selection: status post colectomy for Clostridium difficile disease
Outcome: 30-day postoperative mortality
Parameters:
(1) age in years
(2) preoperative mechanical ventilation
(3) acute renal failure
(4) diabetes mellitus
(5) underlying cardiopulmonary disease
(6) hepatic disease
(7) chronic therapy with corticosteroids
(8) malignancy
Parameter
Finding
Points
age in years
<= 40 years
0
41-60 years
0.06
61 to 80 years
0.54
> 80 years
1.70
mechanical ventilation
no
0
yes
1.12
acute renal failure
no
0
yes
0.52
diabetes mellitus
no
0
yes
-0.26
cardiopulmonary diseaes
no
0
yes
0.69
hepatic disease
no
0
yes
0.47
history of corticosteroids
no
0
yes
1.06
cancer
no
0
yes
0.08
value of X =
= SUM(points for all 8 parameters) - 2.44
probability of death =
= 1 / (1 + EXP((-1) * X))
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