prediastolic murmur

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Related to prediastolic murmur: early diastolic murmur, late diastolic murmur


an auscultatory sound, benign or pathologic, loud or soft, particularly a periodic sound of short duration of cardiac or vascular origin.
aortic murmur a sound indicative of disease of the aortic valve.
apex murmur (apical murmur) a heart murmur heard over the apex of the heart.
arterial murmur one in an artery, sometimes aneurysmal and sometimes constricted.
Austin Flint murmur a loud presystolic murmur at the apex heard when aortic regurgitation is preventing the mitral valve from closing; called also Flint's murmur.
blood murmur one due to an abnormal, commonly anemic, condition of the blood. Called also hemic murmur.
cardiac murmur heart murmur.
cardiopulmonary murmur one produced by the impact of the heart against the lung.
continuous murmur a humming heart murmur heard throughout systole and diastole.
crescendo murmur one marked by progressively increasing loudness that suddenly ceases.
Cruveilhier-Baumgarten murmur one heard at the abdominal wall over veins connecting the portal and caval systems.
diastolic murmur a heart murmur heard at diastole, due to mitral obstruction or to aortic or pulmonic regurgitation with forward flow across the atrioventricular valve; it has a rumbling quality.
Duroziez's murmur a double murmur during systole and diastole, palpated over the femoral or another large peripheral artery; due to aortic insufficiency.
ejection murmur a systolic murmur heard predominantly in midsystole, when ejection volume and velocity of blood flow are at their maximum; it is produced by ejection of blood into the pulmonary artery and aorta.
Flint's murmur Austin Flint murmur.
friction murmur friction rub.
functional murmur a heart murmur occurring in the absence of structural changes in the heart, usually due to high cardiac output states. Called also innocent murmur and physiologic murmur.
Gibson murmur a long rumbling sound occupying most of systole and diastole, usually localized in the second left interspace near the sternum, and usually indicative of patent ductus arteriosus. Called also machinery murmur.
Graham Steell murmur a high-pitched diastolic murmur due to pulmonic regurgitation in patients with pulmonary hypertension and mitral stenosis.
heart murmur see heart murmur.
hemic murmur blood murmur.
innocent murmur functional murmur.
machinery murmur Gibson murmur.
mitral murmur a heart murmur due to disease of the mitral valve; it can be either obstructive or regurgitant.
musical murmur one that has a periodic harmonic pattern; it may be either a heart murmur or a vascular murmur.
organic murmur one due to a lesion in the organ or organ system being examined, e.g., in the heart, in a blood vessel, or in lung tissue.
pansystolic murmur a regurgitant murmur heard throughout systole, due to blood flow between two chambers normally of very different pressures in systole; the most common causes are mitral regurgitation, tricuspid regurgitation, and ventricular septal defects.
physiologic murmur functional murmur.
prediastolic murmur one occurring just before and with diastole, due to aortic regurgitation or pulmonic regurgitation.
presystolic murmur one shortly before the onset of ventricular ejection, usually associated with a narrowed atrioventricular valve.
pulmonic murmur one due to disease of the pulmonary valve or artery.
regurgitant murmur a heart murmur due to a dilated valvular orifice with consequent valvular regurgitation.
seagull murmur a raucous murmur resembling the call of a seagull, frequently heard in aortic stenosis or mitral regurgitation.
Still's murmur a functional heart murmur of childhood, with a buzzing or vibratory tone heard in midsystole; it usually disappears by puberty.
systolic murmur a heart murmur heard at systole, usually due to mitral or tricuspid regurgitation or to aortic or pulmonary obstruction.
to-and-fro murmur a friction sound or murmur heard with both systole and diastole.
tricuspid murmur a heart murmur caused by disease of the tricuspid valve; it may be either obstructive or regurgitant.
vascular murmur one heard over a blood vessel.
vesicular murmur vesicular breath sounds.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


(mur'mur) [L. murmur]
An abnormal sound or extra beat heard when listening to the heart or neighboring large blood vessels. Murmurs may be soft, blowing, rumbling, booming, loud, or variable in intensity. They may be heard during systole, diastole, or both. A murmur does not necessarily indicate heart disease, and many heart diseases do not produce murmurs. See: heart

anemic murmur

Hemic murmur.

aneurysmal murmur

A whizzing systolic sound heard over an aneurysm. It is more commonly known as a bruit.

aortic murmur

An abnormal, soft sound heard on auscultation that may be due to stenosis or regurgitation. It is a sign of aortic valvular disease.
See: aortic regurgitant murmur

aortic obstructive murmur

A harsh systolic murmur heard with and after the first heart sound. It is loudest at the base.

aortic regurgitant murmur

A blowing or hissing following the second heart sound.

apex murmur

An inorganic murmur over the apex of the heart.

arterial murmur

A soft flowing murmur that is synchronous with the pulse.

Austin Flint murmur

See: Austin Flint murmur

bronchial murmur

A murmur heard over large bronchi, resembling respiratory laryngeal murmur.

cardiac murmur

A sound arising due to blood flow through the heart.

cardiopulmonary murmur

A murmur caused by movement of the heart against the lungs.

continuous murmur

A murmur that extends throughout systole and diastole.

crescendo murmur

A murmur that progressively builds up in intensity and then suddenly subsides.

Cruveilhier-Baumgarten murmur

See: Cruveilhier-Baumgarten murmur

diastolic murmur

A murmur occurring during relaxation of the heart.

Duroziez' murmur

See: Duroziez' murmur

ejection murmur

A systolic murmur that is most intense at the time of maximum flow of blood from the heart. This murmur is associated with pulmonary and aortic stenosis.

endocardial murmur

An abnormal sound produced by any cause and arising within the heart.

exocardial murmur

A cardiac murmur produced outside the cavities of the heart.

extracardiac murmur

Exocardial murmur.

friction murmur

A murmur caused by an inflamed mucous surface rubbing against another, as in pericarditis.

functional murmur

A murmur occurring in the absence of any pathological change in the structure of the heart valves or orifices. It does not indicate organic disease of the heart, and may disappear upon a return to health. It may be mistaken for a pathological murmur by an inexperienced listener.

Gibson's murmur

See: Gibson's murmur

Graham Steell's murmur

See: Graham Steell's murmur

heart murmur

Cardiac murmur.

hemic murmur

A sound heard on auscultation of anemic persons without valvular lesions and resulting from an abnormal, usually anemic, blood condition.

holosystolic murmur

Pansystolic murmur.

machinery murmur

Gibson's murmur.

mitral murmur

A murmur produced at the orifice of the mitral (bicuspid) valve.

musical murmur

A cardiac murmur with sounds that have an intermittent harmonic pattern.

organic murmur

A murmur due to structural changes.

pansystolic murmur

A heart murmur heard throughout systole.

pericardial murmur

A friction sound produced within the pericardium.

physiologic murmur

Functional murmur.

prediastolic murmur

Systolic murmur.

presystolic murmur

A murmur occurring just before systole, due to mitral or tricuspid obstruction.

pulmonary murmur

A murmur produced at the orifice of the pulmonary artery.

regurgitant murmur

A murmur due to leakage or backward flow of blood through a dilated valvular orifice.

seagull murmur

A murmur that resembles the cry of a seagull; sometimes associated with aortic insufficiency.

Still's murmur

See: Still's murmur

systolic murmur

A cardiac murmur during systole.

to-and-fro murmur

A pericardial murmur heard during both systole and diastole.

tricuspid murmur

A murmur produced at the orifice of the tricuspid valve and caused by stenosis or incompetency of the valve.

vascular murmur

A murmur occurring over a blood vessel.

vesicular murmur

Normal breath sounds.
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