Gallop rhythm
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| Gallop rhythm | |
|---|---|
| Classification and external resources | |
| Specialty | Lua error in Module:Wikidata at line 446: attempt to index field 'wikibase' (a nil value). |
| ICD-9-CM | 427.9, 785.3 |
| Patient UK | Gallop rhythm |
A gallop rhythm refers to a (usually abnormal) rhythm of the heart on auscultation.[1] It includes three or four sounds, thus resembling the sounds of a gallop.
The normal heart rhythm contains two audible heart sounds called S1 and S2 that give the well-known "lub-dub" rhythm; they are caused by the closing of valves in the heart.
A gallop rhythm contains another sound, called S3 or S4, dependent upon where in the cycle this added sound comes.
It can also contain both of these sounds forming a quadruple gallop, and in situations of very fast heart rate can produce a summation gallop where S3 and S4 occur so close as to be indistinguishable.
Associated conditions
Gallop rhythms may be heard in young or athletic people, but may also be a sign of serious cardiac problems like heart failure as well as pulmonary edema.
References
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<references />, or <references group="..." />External links
- chfpatients.com - suitable for non-medical people, but requires some knowledge of medical terms
- familypractice.com - requires knowledge of medical terms
- http://circ.ahajournals.org/content/20/6/1053.short - American Heart Assoc., Gallop Rhythm of the Heart
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