A 24-year-old male is diagnosed as having hypertrophic obstructive cardiomyopathy. Which one of the following markers is most useful in assessing risk of sudden death?
A. Abnormal blood pressure changes on exercise ***
B. Left ventricular outflow tract gradient
C. QT interval
D. Right atrial diameter
E. QRS duration
A. Abnormal blood pressure changes on exercise ***
B. Left ventricular outflow tract gradient
C. QT interval
D. Right atrial diameter
E. QRS duration
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cardiology