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MedGen

National Center for Biotechnology Information

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Items: 4

The following term was not found in MedGen: circleEpsilon.

Select item 5343801.

Fourth heart sound, S>4<, inaudible

MedGen UID:: 534380
•Concept ID:: C0232241
•: Finding

GTR
ClinVar
Genes
OMIM
GeneReviews

Select item 5343812.

Abnormal fourth heart sound, S>4<

Any abnormality of the fourth heart sound [from SNOMEDCT_US]

MedGen UID:: 534381
•Concept ID:: C0232242
•: Finding

GTR
ClinVar
Genes
OMIM
GeneReviews

Select item 8415763.

Fourth heart sound, S>4<

An auscultated finding that describes a low-frequency sound, heard late in diastole just before S1, caused by forceful atrial contractions, signifying the fourth heart sound. It is typically abnormal, except in highly trained athletes and the elderly. (ACC-AHA) [from NCI]

MedGen UID:: 841576
•Concept ID:: C3853525
•: Finding

GTR
ClinVar
Genes
OMIM
GeneReviews

Select item 6041544.

Fourth heart sound

The fourth heart sound (S4) is a low-pitched sound that occurs just before the first heart sound (S1) when the atria contract to force blood into the left ventricle, that is, coincident with late diastolic filling of the ventricle due to atrial contraction. [from HPO]