murmur /mur·mur/ (mur´mer) [L.] an auscultatory sound, particularly a periodic sound of short duration of cardiac or vascular origin.
machinery murmur.
murmur [mer´mer]
machinery murmur
anemic murmur a cardiac murmur heard in anemia.
aortic murmur one generated by blood flowing through a diseased aorta or aortic valve.
arterial murmur one over an artery, sometimes aneurysmal and sometimes constricted.
Austin Flint murmur a presystolic murmur heard at the apex in aortic regurgitation.
cardiac murmur one of finite length generated by turbulence of blood flow through the heart.
Carey Coombs murmur a rumbling mid-diastolic murmur occurring in the active phase of rheumatic fever.
continuous murmur a humming cardiac murmur heard throughout systole and diastole.
Cruveilhier-Baumgarten murmur one heard at the abdominal wall over veins connecting the portal and caval systems.
diastolic murmurs cardiac murmurs heard during diastole, usually due to semilunar valve regurgitation or to altered blood flow through atrioventricular valves.
Duroziez's murmur a double murmur over the femoral or other large peripheral artery; due to aortic insufficiency.
ejection murmur a type of systolic murmur usually heard in midsystole when ejection volume and velocity of blood flow are maximal, such as in aortic or pulmonary stenosis.
extracardiac murmur one heard over the heart but originating from another structure.
friction murmur see rub.
functional murmur a cardiac murmur generated in the absence of organic cardiac disease.
Gibson murmur a long, rumbling cardiac murmur heard for most of systole and diastole, usually in the second left interspace near the sternum, indicative of patent ductus arteriosus.
Graham Steell's murmur one due to pulmonary regurgitation in patients with pulmonary hypertension and mitral stenosis.
heart murmur cardiac m.
innocent murmur functional m.
machinery murmur Gibson m.
musical murmur a cardiac murmur having a periodic harmonic pattern.
organic murmur one due to a lesion in an organ, e.g., the heart, a vessel, or a lung.
pansystolic murmur a regurgitant murmur heard throughout systole.
pericardial murmur see under rub.
prediastolic murmur a cardiac murmur heard just before and with diastole; due to mitral obstruction, or to aortic or pulmonary regurgitation.
presystolic murmur a cardiac murmur heard just before ventricular ejection, usually associated with atrial contraction and the acceleration of blood flow through a narrowed atrioventricular valve.
pulmonic murmur one due to disease of the pulmonary valve or artery.
regurgitant murmur one due to regurgitation of blood through an abnormal valvular orifice.
seagull murmur a raucous murmur with musical qualities, such as that heard occasionally in aortic insufficiency.
Still's murmur a low-frequency, vibratory or buzzing, functional cardiac murmur of childhood, heard in midsystole.
systolic murmurs cardiac murmurs heard during systole; usually due to mitral or tricuspid regurgitation or to aortic or pulmonary obstruction.
to-and-fro murmur a friction rub heard in both systole and diastole.
vascular murmur one heard over a blood vessel.
vesicular murmur vesicular breath sounds.
ma·chin·er·y murmur (m -sh  n-r, -shnr)n. See Gibson murmur. |
machinery murmur.
See Gibson's murmur.
Machinery Murmur
A continuous, harsh, rasping or rumbling cardiac murmur, which is characteristic of patent ductus arteriosus. It begins shortly after the first heart sound, reaches a maximum at the end of systole and wanes in late diastole. The machinery murmur is best heard in the 2nd left intercostal space, transmits to the chest and neck and may be felt by the patients as a palpable thrill or ‘buzz’; it may also be heard in ventricular septal defect, rarely in pulmonary hypertension and in penetrating soft-tissue injury with formation of an arteriovenous fistula
murmur [mer´mer]
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.
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.
machinery murmur
Cardiology A continuous harsh, rasping or rumbling cardiac murmur characteristic of patent ductus arteriosus that begins shortly after the first sound, reaches a maximum at the end of systole and wanes in late diastole; the
MM is best heard in the 2nd left intercostal space, transmits to the chest and neck and may be felt by the Pts as a palpable thrill or 'buzz'; it may also be heard in VSD, rarely in pulmonary HTN and in penetrating
soft-tissue injury with formation of an AV fistula
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