Cardiac Risk Score of Wong et al for Predicting Mortality Following Coronary Artery Bypass Graft (CABG) Surgery

Description

Wong et al developed 3 cardiac risk scores for patients undergoing coronary artery bypass graft (CABG) surgery. One of these helped to identify a patient who is at increased risk for morality following the surgery. The authors are from the University of Toronto.

Parameters:

(1) gender

(2) emergency surgery

(3) left ventricular dysfunction

All of these risk factors would be known prior to surgery.

Parameter	Finding	Points
gender	male	0
	female	3
emergency surgery	no	0
	yes	4
left ventricular dysfunction	none to Grade 3	0
	Grade 4	5

total score =

= SUM(points for all 8 parameters)

Interpretation:

• minimum score: 0

• maximum score: 12

• The higher the score the greater the risk of mortality.

Total Score	Percent Mortality
0	1%
1 to 4	7%
5 to 8	16%
9 to 11	36%
12	44%

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Cardiac Risk Score of Wong et al for Predicting Mortality Following Coronary Artery Bypass Graft (CABG) Surgery

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