Medicine General a65f0999 All except one is true regarding murmur heard in hypertrophic obstructive cardiomyopathy A Systolic murmur decreases on squatting B Systolic murmur increases on valsalva manoeuvre C Systolic murmur increases with hand grip D Systolic murmur decreases on taking beta blocker High-Yield Explanation Murmur in HOCM decreases with handgrip DYNAMIC CARDIAC ASCULTATION Effect of Murmurs.