diamond-shaped murmur

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di·a·mond-shaped mur·mur

a crescendo-decrescendo murmur, from the shape of the frequency intensity curve of the phonocardiogram, often audible as such.


an auscultatory sound, particularly a periodic sound of short duration of cardiac or vascular origin.

anemic murmur
see blood murmur (below).
aortic murmur
a sound indicative of disease of the aortic valve.
apex murmur
one heard over the apex of the heart.
arterial murmur
one in an artery, sometimes aneurysmal and sometimes constricted.
blood murmur
one due to an abnormal, commonly anemic, condition of the blood. Called also anemic murmur.
cardiac murmur
see heart murmur (below).
cardiopulmonary murmur
one produced by the impact of the heart against the lung.
continuous murmur
a humming murmur heard throughout systole and diastole.
crescendo murmur
one marked by progressively increasing loudness.
crescendo-decrescendo murmur
one with increasing intensity until mid- to late systole, then a decreasing intensity, giving a diamond-shaped tracing on phonocardiography. Characteristic of pulmonary stenosis.
decrescendo murmur
one with an intensity that gradually decreases. Heard during diastole in aortic or pulmonary valvular insufficiency.
diamond-shaped murmur
refers to the phonocardiographic tracing of a crescendo-decrescendo murmur.
diastolic murmur
one at diastole, due to mitral obstruction or to aortic or pulmonary regurgitation.
ejection murmur
systolic murmur heard predominantly in mid-systole, when ejection volume and velocity of blood flow are at their maximum.
friction murmur
friction rub.
functional murmur
a cardiac murmur occurring in the absence of structural changes in the heart.
heart murmur
any adventitious sound heard over the region of the heart. It may indicate a leaking or stenotic valve, a congenital patency between the right and left sides of the heart, or be a functional murmur which does not indicate cardiac disease. These occur in young foals, some of them disappear before maturity.
hemic murmur
see blood murmur (above).
innocent murmur
one caused by increased velocity of blood rather than a cardiac lesion.
machinery murmur, machinery-like murmur
a long, rumbling sound occupying most of systole and diastole. Characteristic of patent ductus arteriosus and arteriovenous fistulas.
mitral murmur
one due to disease of the mitral valve.
musical murmur
a cardiac murmur having a periodic harmonic pattern.
organic murmur
one due to structural change in the heart.
pansystolic murmur
one heard throughout systole.
prediastolic murmur
one occurring just before and with diastole, due to mitral obstruction or to aortic or pulmonary regurgitation.
presystolic murmur
one occurring shortly before the onset of ventricular ejection, usually associated with a narrowed atrioventricular valve.
pulmonary murmur
one due to disease of the valves of the pulmonary artery.
radiating heart murmur
one which is heard over a wider area or over another area. The systolic murmur of subaortic stenosis radiates up the aortic arch and carotid arteries. It can be heard over the right, as well as left, heart base and occasionally over the head.
regurgitant murmur
one due to a dilated valvular orifice, with consequent regurgitation of blood through the valve.
seagull murmur
a raucous murmur resembling the call of a seagull, frequently heard in aortic insufficiency.
systolic murmur
one occurring at systole, usually due to mitral or tricuspid regurgitation, or to aortic or pulmonary obstruction.
tricuspid murmur
one caused by disease of the tricuspid valve.
vascular murmur
one heard over a blood vessel.
vesicular murmur
the normal breath sounds heard over the lungs.