CABG Risk of Mortality Score

Description

The risk of mortality following isolated coronary artery bypass graft (CABG) surgery can be estimated based on preoperative factors. The score was developed by the American College of Cardiology, the American Heart Association, the American Association of Thoracic Surgery and the Society of Thoracic Surgeons.

Parameters:

(1) age

(2) gender

(3) diabetes

(4) COPD

(5) peripheral vascular disease

(6) dialysis

(7) serum creatinine

(8) time from myocardial infarction

(9) history of prior CABG surgery

(10) left ventricular ejection fraction (LVEF)

(11) 3 vessel disease

(12) occlusion in left main coronary artery

(13) white blood cell (WBC) count

(14) timing of surgery

Parameter	Finding	Points
age	< 60 years	0
	60 - 69 years	1.5
	70 - 79	2.5
	>= 80	6.5
gender	male	0
	female	2
diabetes	absent	0
	present	1
COPD	absent	0
	present	2
peripheral vascular disease	absent	0
	present	1.5
need for dialysis	no	0
	yes	4
serum creatinine	< 2 mg/dL	0
	>= 2 mg/dL	2
time from MI	> 7 days	0
	<= 7 days	1.5
history of previous CABG	absent	0
	present	2.5
LVEF	>= 40%	0
	< 40%	2
3 vessel disease	absent	0
	present	1.5
left main coronary artery	< 50%	0
	50 - 89%	1.5
	>= 90%	2
WBC count	<= 12,000 per µL	0
	> 12,000 per µL	2.5
timing of surgery	elective	0
	urgent	2
	emergency	5

total score =

= SUM(points for all 14 parameters

Interpretation:

• minimum score: 0

• maximum score: 36

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

Total Score	Mortality
0 - 1	0.2%
2 - 3	0.3%
4	0.5%
5	0.7%
6	1.0%
7	1.3%
8	1.8%
9	2.3%
10	3.0%
11	4.0%
12	5.3%
13	6.9%
14	8.8%
15	11.5%
16	14.1%
17	18.7%
18	>= 23%

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

Description

Specialty

Objective

ICD-10

Purpose: To estimate the mortality risk following isolated coronary artery bypass graft (CABG) surgery with the 2004 ACC/AHA risk score.

Description

Specialty

Objective

ICD-10