| pubmed-article:2386120 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:2386120 | lifeskim:mentions | umls-concept:C0018792 | lld:lifeskim |
| pubmed-article:2386120 | lifeskim:mentions | umls-concept:C0042458 | lld:lifeskim |
| pubmed-article:2386120 | lifeskim:mentions | umls-concept:C0004048 | lld:lifeskim |
| pubmed-article:2386120 | lifeskim:mentions | umls-concept:C0033095 | lld:lifeskim |
| pubmed-article:2386120 | lifeskim:mentions | umls-concept:C0344329 | lld:lifeskim |
| pubmed-article:2386120 | lifeskim:mentions | umls-concept:C0681916 | lld:lifeskim |
| pubmed-article:2386120 | lifeskim:mentions | umls-concept:C0750572 | lld:lifeskim |
| pubmed-article:2386120 | lifeskim:mentions | umls-concept:C0680844 | lld:lifeskim |
| pubmed-article:2386120 | pubmed:issue | 4 | lld:pubmed |
| pubmed-article:2386120 | pubmed:dateCreated | 1990-9-14 | lld:pubmed |
| pubmed-article:2386120 | pubmed:abstractText | To evaluate a simple noninvasive means of estimating right atrial (RA) pressure, the respiratory motion of the inferior vena cava (IVC) was analyzed by 2-dimensional echocardiography in 83 patients. Expiratory and inspiratory IVC diameters and percent collapse (caval index) were measured in subcostal views within 2 cm of the right atrium. Parameters were correlated with RA pressure by flotation catheter within 24 hours of the echocardiogram (38 were simultaneous). Correlations between RA pressure (range 0 to 28 mm Hg), expiratory and inspiratory diameters and caval index were 0.48, 0.71 and 0.75, respectively. Of 48 patients with caval indexes less than 50%, 41 (89%) had RA pressure greater than or equal to 10 mm Hg (mean +/- standard deviation, 15 +/- 6), while 30 of 35 patients (86%) with caval indexes greater than or equal to 50% had RA pressure less than 10 mm Hg (mean 6 +/- 5). Sensitivity and specificity for discrimination of RA pressure greater than or equal to or less than 10 mm Hg were maximized at the 50% level of collapse. Thus, IVC respiratory collapse on echocardiography is easily imaged and can be used to estimate RA pressure. A caval index greater than or equal to 50% indicates RA pressure less than 10 mm Hg, and caval indexes less than 50% indicate RA pressure greater than or equal to 10 Hg. | lld:pubmed |
| pubmed-article:2386120 | pubmed:grant | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:2386120 | pubmed:language | eng | lld:pubmed |
| pubmed-article:2386120 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:2386120 | pubmed:citationSubset | AIM | lld:pubmed |
| pubmed-article:2386120 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:2386120 | pubmed:month | Aug | lld:pubmed |
| pubmed-article:2386120 | pubmed:issn | 0002-9149 | lld:pubmed |
| pubmed-article:2386120 | pubmed:author | pubmed-author:SchillerN BNB | lld:pubmed |
| pubmed-article:2386120 | pubmed:author | pubmed-author:HimelmanR BRB | lld:pubmed |
| pubmed-article:2386120 | pubmed:author | pubmed-author:KircherB JBJ | lld:pubmed |
| pubmed-article:2386120 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:2386120 | pubmed:day | 15 | lld:pubmed |
| pubmed-article:2386120 | pubmed:volume | 66 | lld:pubmed |
| pubmed-article:2386120 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:2386120 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:2386120 | pubmed:pagination | 493-6 | lld:pubmed |
| pubmed-article:2386120 | pubmed:dateRevised | 2007-11-14 | lld:pubmed |
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| pubmed-article:2386120 | pubmed:meshHeading | pubmed-meshheading:2386120-... | lld:pubmed |
| pubmed-article:2386120 | pubmed:meshHeading | pubmed-meshheading:2386120-... | lld:pubmed |
| pubmed-article:2386120 | pubmed:year | 1990 | lld:pubmed |
| pubmed-article:2386120 | pubmed:articleTitle | Noninvasive estimation of right atrial pressure from the inspiratory collapse of the inferior vena cava. | lld:pubmed |
| pubmed-article:2386120 | pubmed:affiliation | University of California, San Francisco, Division of Cardiology, John Henry Mills Echocardiography Laboratory. | lld:pubmed |
| pubmed-article:2386120 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:2386120 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
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