This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All are true regarding hyperophic cardiomyopathy EXCEPT: September 2012 
Select and explain. 
A. Digoxin is helpful, B. Irregular thickness of septa, C. Dynaic obstruction, D. Double aical impulse
A: Digoxin is helpful
Answer: A: Digoxin is helpful 
Explanation: Ans: A i.e. Digoxin is helpful Digitalis is contraindicated in the hyperdynamic phase of the disease when obstruction is present and the left ventricular cavity is small, because digitalis increases the vigor of left ventricular contraction and thus increases the outflow obstruction HOCM ECHO may show mitral regurgitation Murmur of HOCM: Ejection systolic murmur Sudden death may be a complication Avoid digoxin