2021 Cardiac Surgery Annual Report

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

Made with FlippingBook - professional solution for displaying marketing and sales documents online