Risk Factors of Tzemos et al for an Adverse Cardiac Event in an Adult with a Bicuspid Aortic Valve

Description

Tzemos et al evaluated adults with bicuspid aortic valves. They identified risk factors associated with adverse cardiac events in these patients. The authors are from the University of Toronto, McGill University, National University Singapore, University of Pennsylvania and the University of Western Ontario.

Patient selection: adult with a congenital bicuspid aortic valve

Adverse cardiac events: cardiac death, heart failure requiring hospital admission, aortic aneurysm or dissection, intervention on the aortic valve

Parameters:

(1) age of the patient in years

(2) severity of aortic stenosis

(3) severity of aortic regurgitation

Parameter	Finding	Points
age in years	<= 30	0
	> 30	1
aortic stenosis	none to mild	0
	moderate to severe	1
aortic regurgitation	none to mild	0
	moderate to severe	1

total number of risk factors =

= SUM(points for all 3 parameters)

Interpretation:

• minimum score: 0

• maximum score: theoretically 3 but practically 2

• The greater the score the greater the risk of adverse cardiac events.

Total Score	Risk of Adverse Cardiac Event in 10 Years
0	4%
1	16%
2 or 3	65%

estimated from Figure 3, page 1322.

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Description

Specialty

ICD-10