Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8 Suppl
pubmed:dateCreated
2007-9-3
pubmed:abstractText
Cardiac auscultation remains the most important method of screening for valvular heart diseases. Echocardiography is recommended for symptomatic patients or even asymptomatic patients with heart murmurs. Echocardiography is one of the most important examinations for the diagnosis and assessment of severity of valvular heart diseases. The severity of the aortic or mitral stenosis can be defined with Doppler echocardiographic measurements of maximum jet velocity, mean transvalvular pressure gradient, which can be measured from the continuous-wave Doppler signal across the valve with the modified Bernoulli equation, and continuity equation valve area. Planimetry of the orifice area may be possible from the short-axis view. The mitral valve area can also be derived from Doppler echocardiography with the diastolic pressure half-time method. In addition to semiquantitative assessment of the severity of aortic or mitral regurgitation by color flow jet area by Doppler echocardiography, quantitative measurement of regurgitant volume, regurgitant fraction, and regurgitant orifice area can be performed. Indirect measures of severity of aortic regurgitation are helpful, using the rate of decline in regurgitant gradient measured by the slope of diastolic flow velocity, or using the degree of reversal in pulse wave velocity in the descending aorta
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0021-5252
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
647-52
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
[Echocardiography is necessary to confirm the presence and severity of valvular heart disease].
pubmed:affiliation
Department of Cardiology, Kawasaki Medical School, Kurashiki, Japan.
pubmed:publicationType
Journal Article, English Abstract