Pre-operative cardiac status
Risk factors Table 14 outlines the patient risk factors and pre-operative cardiac status for CABG surgery cases. In total, 71.3% of the patients undergoing isolated CABG surgery had a diagnosis of hypertension, which was the most common risk factor, followed by hypercholesterolaemia and diabetes. These remain the three highest contributing risk factors for CABG surgery.
Pre-op cardiac status
% of isolated CABG
n
Previous MI
78
45.6
MI type
Risk factors
% of isolated CABG
n
NSTEMI
57
33.3
STEMI
18
10.5
Hypertension
122
71.3
Unknown
3
1.8
Hypercholesterolaemia
111
64.9
MI timing
Diabetes
60
35.1
≤ 6hrs
2
1.2
Smoking (history)
57
33.3
1 to 7 days
32
18.7
Obesity (BMI>30)
55
32.2
8 to 21 days
35
20.5
PVD
11
6.4
>21 days
9
5.3
Chronic renal failure
2
1.2
Unstable angina
136
79.5
Angina classification
Table 14. Risk factors for isolated CABG cases
Prolonged extertion
25
14.6
Slight limitation of ordinary activity
75
43.9
Marked limitation of ordinary activity
24
14.0
IV GTN
15
8.8
Angina treatment IV Heparin
47
27.5
Therapeutic heparinoids
2
1.2
Inability to carry out any physical activity 12
7.0
Table 15. Pre-operative cardiac status breakdown for isolated CABG cases
30
31
Cardiac Surgery Annual Report 2021
Cardiac Surgery Annual Report 2021
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