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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1986-1-22
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pubmed:abstractText |
The purpose of this study is to evaluate four methods of determining left ventricular stroke volume (SV) from aortic valve (AV) and aortic root (AR) M-mode echocardiogram (Table I, formulas 1-4); secondly, to study relations between echocardiographic aortic variables and SV. We studied 20 patients (Pts) in our Coronary Unit, 14 men and 6 women; their ages ranged from 38 to 76 (mean 53.4) years. Seventeen Pts had acute myocardial infarction; two Pts had previous myocardial infarction and heart failure; one Pt had dilated cardiomyopathy and heart failure. Three out of the twenty Pts, had mitral insufficiency (Table II, clinical and hemodynamic data). Patients were studied with high quality M-mode echocardiography. Immediately after the examination repeated measurements of cardiac output by thermodilution technique (TD) were carried out, and values of SV calculated (SV-TD). Twenty-five complete procedures were accomplished. The formulas were applied to every patient's echocardiographic data, and results (SV-ECHO) compared with SV-TD (Table III). Echocardiographic variables, whether single or multiple (terms), were also studied with regard to their relation with SV-TD (Table IV). Mean +/- SD value of SV-TD of the study group was 60.3 +/- 24.7 ml; range 22.7 to 108 ml. Mean +/- SD values of SV-ECHO were as follows: Yeh's formula, based on squared mean AV opening and LVET, 56 +/- 22.6 (ml), r = 0.8278, SEE 12.98; Jacobs' formula, based on aortic box planimetry, 68 +/- 32.5 (ml), r = 0.7129, SEE 23.31.(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:language |
ita
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0046-5968
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
15
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
600-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:4065479-Adult,
pubmed-meshheading:4065479-Aged,
pubmed-meshheading:4065479-Aortic Valve,
pubmed-meshheading:4065479-Echocardiography,
pubmed-meshheading:4065479-Female,
pubmed-meshheading:4065479-Humans,
pubmed-meshheading:4065479-Male,
pubmed-meshheading:4065479-Middle Aged,
pubmed-meshheading:4065479-Stroke Volume
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pubmed:year |
1985
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pubmed:articleTitle |
[Methods of determination of stroke volume from M-mode echocardiogram of the aortic valve and aortic root. A comparative evaluation].
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pubmed:publicationType |
Journal Article,
Comparative Study,
English Abstract
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