Linked Life Data

6667481

Source:http://linkedlifedata.com/resource/pubmed/id/6667481

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1984-4-16
pubmed:abstractText
In order to compare an invasive with a noninvasive index of left ventricular stiffness during late diastole, M-mode echocardiogram, left ventricular pressure (LVP) and apexcardiogram (QLAC) were recorded simultaneously during acute dog experiments. The slope of the log pressure (P)-log volume (V) relationship is expressed by the ratio VdP/PdV. This index has been proven to be valid for the evaluation of left ventricular stiffness during late diastole. Diameter (D) changes were assumed to be proportional to volume changes. Continuous data from the ascending part of the A wave (due to atrial contraction) and the corresponding diameter change were used to calculate the slope (k1) of the log LVP--log D relation. During the same period the slope (k2) of the log QLAC--log D relation was also calculated. A significant linear correlation was found between values obtained semi-invasively from LVP-D (k1) and noninvasively from QLAC-D (k2) data: n = 21, r = 0.93, p less than 0.001. This shows the usefulness of VdP/PdV derived noninvasively from QLAC and M-mode echo for the assessment of stiffness of the left ventricle during late diastole.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0008-6312
pubmed:author
pubmed:issnType
Print
pubmed:volume
70
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
263-72
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Noninvasive determination of stiffness of the left ventricle by combined M-mode echo- and apexcardiography. An experimental method.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't