Model of Cadrin-Tourigny et al for Predicting Sustained Ventricular Tachycardia in a Patient with Arrhythmogenic Right Ventricular Cardiomyopathy

Description

Cadrin-Tourigny et al reported a score for predicting the risk of sustained ventricular tachycardia in a patient with arrhythmogenic right ventricular cardiomyopathy. The authors are from multiple institutions in the North America and Europe.

Patient selection: arrhythmogenic right ventricular cardiomyopathy

Outcome: sustained ventricular arrhythmia or sudden cardiac death

Parameters:

(1) sex

(2) age

(3) recent cardiac syncope

(4) non-sustained ventricular tachycardia

(5) 24-hour premature ventricular contraction (PVC) count

(6) number of anterior and inferior leads with T-wave inversion

(7) right ventricular ejection fraction (RVEF) in percent

Parameter	Finding	Points
sex	male	0.49
	female	0
age		-0.022 * (age)
recent syncope	no	0
	yes	0.66
non-sustained VT	no	0
	yes	0.81
24-hour PVC count		0.17 * LN(count)
leads with T-wave inversion		0.11 * (number)
RVEF		-0.025 * (percent)

value of X =

= SUM(points for all of the parameters)

5-year risk of sustained ventricular arrhythmia or sudden cardiac death =

= 1 - (0.8396 ^ EXP(X))

Performance:

• The area under the ROC curve is 0.77.

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Model of Cadrin-Tourigny et al for Predicting Sustained Ventricular Tachycardia in a Patient with Arrhythmogenic Right Ventricular Cardiomyopathy

Description

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