Functional murmurs are benign (an "innocent murmur"). Pulmonary valve regurgitation presents as a diastolic decrescendo murmur at the left lower sternal border. Presystolic accentuation of diastolic murmur disappears. Cats with a heart murmur may develop blood clots that travel through arteries. Cases with a late systolic regurgitant murmur may still be associated with significant hemodynamic consequences. Creak, murmur, rhoticity et al. The handgrip maneuver diminishes the murmur of an MVP and the murmur of hypertrophic cardiomyopathy. I hear people murmur the dreaded word "decoherence". An alternative minimalist implementation of the mumble-server (Murmur) is called uMurmur. This may be confused with a heart murmur. Another uncommon cause of a continuous murmur is a ruptured sinus of valsalva. Patent ductus arteriosus may present as a continuous murmur radiating to the back. The heart murmur was diagnosed when he was 6 weeks old. Many cats that have a heart murmur do not have HCM. Other symptoms may include a heart murmur, finger clubbing, and easy tiring upon breastfeeding.