2021 Cardiac Surgery Annual Report

Pre-operative cardiac status

Risk factors Table 23 outlines the patient risk factors and pre-operative cardiac status for isolated valve surgery cases.

Pre-op cardiac status

% of isolated valve

n

The two highest contributing risk factors in this patient cohort are: • Hypertension (45.6%) • Hypercholesterolarmia (38.6%)

History of congestive heart failure

20

35.1

Congestive heart failure at admission

12

21.1

Risk factors

% of isolated valve

n

NYHA

I (no limitation of activity)

8

14.0

Hypertension

26

45.6

II (slight limitation of activity)

19

33.3

Hypercholesterolaemia

22

38.6

III (marked limitation of activity)

26

45.6

Obesity (BMI>30)

18

31.6

IV (inability to carry out any activity)

4

7.0

Diabetes

8

14.0

Arrhythmia

13

22.8

Smoking (history)

6

10.5

Atrial fibrillation or flutter

11

19.3

PVD

3

5.3

Atrial fibrillation type Paroxsysmal

Chronic renal failure

2

3.5

7

12.3

Permanent

3

5.26

Table 23. Risk factors for isolated valve patients

Unknown

1

1.75

Complete heart block

1

1.75

Table 24. Pre-operative cardiac status breakdown for isolated valve cases

38

39

Cardiac Surgery Annual Report 2021

Cardiac Surgery Annual Report 2021

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