CARES Surgical Risk Calculators of Chan et al: Combined Outcome Score

Description

Chan et al reported the CARES Surgical Risk Calculators for evaluating a surgical patient. These can help to identify a patient who may require more aggressive management. The authors are from Singapore General Hospital, University of Singapore and Duke-NUS Medical School in Singapore.

CARES stands for Combined Assessment of Risk Encountered in Surgery

Patient selection: surgical patient >= 18 years of age

Outcome: mortality within 30 days or ICU stay > 24 hours after surgery

Parameters:

(1) age in years

(2) surgical risk

(3) anemia status

(4) RDW (red cell distribution width) in percent

(5) ischemic heart disease

(6) ASA classification

(7) surgical acuity

(8) sex

(9) congestive heart failure

Parameter	Finding	Points
age in years	18 to 29	0
	30 to 49	4
	50 to 74	7
	75 to 84	8
	>= 85	10
surgical risk	low	0
	moderate	5
	severe	5
anemia	none	0
	mild	2
	moderate	5
	severe	5
RDW	<= 15.7	0
	> 15.7	3
ischemic heart disease	absent	0
	present	3
ASA	1 or 2	0
	3	7
	4	11
surgical acuity	elective	0
	urgent	0
	emergency	5
sex	male	2
	female	0
congestive heart failure	absent	0
	present	2

total score =

= SUM(points for all 9 parameters)

Interpretation:

• minimum score: 0

• maximum score: 40

• The higher the score the greater the risk for a poor outcome.

Score	Risk Group	30-Day Mortality	ICU > 24 Hours
0 to 10	low	0%	0.1%
11 to 20	low-moderate	0.2%	0.9%
21 to 30	moderate-high	1.9%	4.9%
> 30	high	11.5%	14.9%

Performance:

• The area under the ROC curve was 0.934 for mortality and 0.86 for ICU stay.

To read more or access our algorithms and calculators, please log in or register.

CARES Surgical Risk Calculators of Chan et al: Combined Outcome Score

Description

Specialty