systolic murmur

a cardiac murmur occurring during systole; usually due to mitral or tricuspid regurgitation or to aortic or pulmonary obstruction. These are often distinguished as either ejection or regurgitant murmurs, and on the basis of cardiac cycle timing, they may be classified as early systolic, midsystolic, late systolic, or pansystolic murmurs.

Systolic murmur (SM) in a child with valvular pulmonary stenosis. The phonocardiogram is recorded at the left upper sternal border and also shows an intermittent systolic ejection click (EC) occurring in the expiratory phase of the respiratory cycle. (S2), Second heart sound.


Medical dictionary. 2011.

Look at other dictionaries:

  • systolic murmur — noun a murmur heard during systole • Hypernyms: ↑heart murmur, ↑cardiac murmur, ↑murmur …   Useful english dictionary

  • early systolic murmur — a regurgitant cardiac murmur beginning at the first heart sound and diminishing and ending well before the second heart sound; it results from abbreviation of pansystolic murmurs due to special circumstances such as acute mitral regurgitation or… …   Medical dictionary

  • late systolic murmur — a regurgitant murmur beginning in the middle or last third of systole and continuing until the second heart sound; it is often associated with a midsystolic click and mitral valve prolapse …   Medical dictionary

  • midsystolic click–late systolic murmur syndrome — mitral valve prolapse s …   Medical dictionary

  • Systolic — Sys*tol ic, a. Of or pertaining to systole, or contraction; contracting; esp., relating to the systole of the heart; as, systolic murmur. Dunglison. [1913 Webster] …   The Collaborative International Dictionary of English

  • Systolic — The blood pressure when the heart is contracting. It is specifically the maximum arterial pressure during contraction of the left ventricle of the heart. The time at which ventricular contraction occurs is called systole. In a blood pressure… …   Medical dictionary

  • Murmur — A Murmur is an abnormal "whooshing" sound created by blood flow through heart valves, as well as flow through chamber narrowings or unusual connections seen with congenital heart disease. It is usually heard by the doctor while… …   Medical dictionary

  • systolic bruit — see under murmur …   Medical dictionary

  • murmur — n. a noise, heard with the aid of a stethoscope, that is generated by turbulent blood flow within the heart or blood vessels. Turbulent flow is produced by damaged valves, septal defects, narrowed arteries, or arteriovenous communications. Heart… …   The new mediacal dictionary

  • systolic click–murmur syndrome — mitral valve prolapse s …   Medical dictionary

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