| LSM | late systolic murmur; lymphocyte separation medium; lysergic acid morpholide |
|---|---|
| MDM | medical decision making; mid-diastolic murmur; minor determinant mix [penicillin] |
| MER | mean ejection rate; medical emergency room; methanol extraction residue; murmur/energy ratio |
| PM | after death (Lat. post mortem); after noon [Lat. post meridiem]; mean pressure; pacemaker; pantomogr... |
| PSM | postmitochondrial supernatant; presystolic murmur |
neuro-cardiac
| organic murmur | A murmur caused by an organic lesion. (05 Mar 2000) |
|---|---|
| early diastolic murmur | A murmur that begins with the second heart sound, as the murmur of aortic insufficiency. (05 Mar 2000) |
| ejection murmur | A diamond-shaped systolic murmur produced by the ejection of blood into the aorta or pulmonary artery and ending by the time of the second heart sound component produced, respectively, by closing of the aortic or pulmonic valve. (05 Mar 2000) |
| to-and-fro murmur | Murmur heard in both systole and diastole of the heart, as in aortic stenosis and insufficiency. Synonym: seesaw murmur. (05 Mar 2000) |
| endocardial murmur | A murmur arising, from any cause, within the heart. (05 Mar 2000) |
| tricuspid murmur | A murmur produced at the tricuspid orifice, either obstructive or regurgitant. (05 Mar 2000) |
| extracardiac murmur | A bruit heard over or near the precordium originating from structures other than the heart; the term includes pericardial friction rubs and cardiopulmonary murmur's. (05 Mar 2000) |
| Flint's murmur | A diastolic murmur, similar to that of mitral stenosis, heard best at the cardiac apex in some cases of free aortic insufficiency; it is thought to be caused by the turbulent regurgitating stream from the aorta mixing into the stream simultaneously entering from the left atrium through the mitral valve, causing posterior movement of the anterior leaflet of the mitral valve with transient acceleration of blood flow through the mitral valve. Synonym: Austin Flint murmur. (05 Mar 2000) |
| late apical systolic murmur | A murmur previously considered benign, or even extracardiac, with a possible relationship to pericardial disease; it often represents mitral insufficiency, often localised and of moderate severity but with propensity for developing bacterial endocarditis, and is frequently associated with systolic click and mitral prolapse (Barlow syndrome; a balloon or billowing mitral valve leaflet) often producing a click, murmur, or both, as it prolapses during systole into the left atrium. (05 Mar 2000) |
| late diastolic murmur | A murmur heard at the end of ventricular diastole (during atrial systole if in sinus rhythm), usually due to obstruction at one of the atrioventricular orifices. Synonym: atriosystolic murmur, late diastolic murmur. (05 Mar 2000) |
| Frantzel's murmur | A murmur of mitral stenosis when louder at its beginning and end than in its midportion. (05 Mar 2000) |
| friction murmur | The sound, heard on auscultation, made by the rubbing of two opposed serous surfaces roughened by an inflammatory exudate, or, if chronic, by nonadhesive fibrosis. Synonym: friction murmur, friction rub. (05 Mar 2000) |
| functional murmur | A cardiac murmur not associated with a significant heart lesion. Synonym: innocent murmur, inorganic murmur. (05 Mar 2000) |
| abnormal cleavage of cardiac valve | Congenital malformation of a valve leaflet with a defect extending from the free margin. (05 Mar 2000) |
| anterior cardiac veins | Two or three small veins in the anterior wall of the right ventricle opening directly into the right atrium independently of the coronary sinus. Synonym: venae cordis anteriores. (05 Mar 2000) |