| pubmed-article:12574738 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:12574738 | lifeskim:mentions | umls-concept:C0030705 | lld:lifeskim |
| pubmed-article:12574738 | lifeskim:mentions | umls-concept:C0031809 | lld:lifeskim |
| pubmed-article:12574738 | lifeskim:mentions | umls-concept:C1277187 | lld:lifeskim |
| pubmed-article:12574738 | lifeskim:mentions | umls-concept:C0019010 | lld:lifeskim |
| pubmed-article:12574738 | lifeskim:mentions | umls-concept:C0554756 | lld:lifeskim |
| pubmed-article:12574738 | lifeskim:mentions | umls-concept:C0264716 | lld:lifeskim |
| pubmed-article:12574738 | pubmed:issue | 2 | lld:pubmed |
| pubmed-article:12574738 | pubmed:dateCreated | 2003-2-7 | lld:pubmed |
| pubmed-article:12574738 | pubmed:abstractText | We sought to evaluate whether contrast-enhanced Doppler echocardiography can improve the noninvasive estimation of hemodynamic variables in left ventricular (LV) dysfunction. Right-heart catheterization and Doppler echocardiography were simultaneously performed in 45 patients with LV dysfunction (ejection fraction: 29 +/- 7%) in sinus rhythm. Noninvasive variables were estimated as follows: cardiac output by pulsed Doppler of LV outflow tract; pulmonary capillary wedge pressure by a regression equation including mitral and pulmonary venous flow variables; pulmonary artery mean pressure from the calculated systolic and diastolic pulmonary artery pressures; and pulmonary vascular resistance from the previous measurements according to hemodynamic definition. Contrast enhancement increased the feasibility of pulmonary capillary wedge pressure estimation from 60% to 100%; of pulmonary artery mean pressure from 42% to 91%; and of pulmonary vascular resistance from 42% to 91%. Strong correlations between invasive and noninvasive hemodynamic variables were found: r = 0.90, standard error of the estimate (SEE) 0.45 L/min for cardiac output; r = 0.90, SEE 3.1 mm Hg for pulmonary capillary wedge pressure; r = 0.93, SEE 3.7 mm Hg for pulmonary artery mean pressure; and r = 0.85 SEE 1.0 Wood units for pulmonary vascular resistance. Weaker correlations for PAMP (r = 0.82, SEE 5.6 mm Hg) and PVR (r = 0.66, SEE 1.7 Wood units) were apparent prior to contrast enhancement. When patients were separated according to PVR threshold values, the contrast allowed the correct placement of 88% of patients, whereas only 57% were correctly assigned without it. The contrast increased accuracy and reduced interobserver variability in the evaluation of hemodynamic variables. The contrast-enhanced study is capable of increasing the value of noninvasive hemodynamic assessment in LV dysfunction. | lld:pubmed |
| pubmed-article:12574738 | pubmed:language | eng | lld:pubmed |
| pubmed-article:12574738 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12574738 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:12574738 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12574738 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12574738 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12574738 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:12574738 | pubmed:month | Feb | lld:pubmed |
| pubmed-article:12574738 | pubmed:issn | 0894-7317 | lld:pubmed |
| pubmed-article:12574738 | pubmed:author | pubmed-author:CobelliFranco... | lld:pubmed |
| pubmed-article:12574738 | pubmed:author | pubmed-author:DiniFrank... | lld:pubmed |
| pubmed-article:12574738 | pubmed:author | pubmed-author:MicheliGiovan... | lld:pubmed |
| pubmed-article:12574738 | pubmed:author | pubmed-author:TraversiEgidi... | lld:pubmed |
| pubmed-article:12574738 | pubmed:author | pubmed-author:FranchiniMire... | lld:pubmed |
| pubmed-article:12574738 | pubmed:author | pubmed-author:PozzoliMassim... | lld:pubmed |
| pubmed-article:12574738 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:12574738 | pubmed:volume | 16 | lld:pubmed |
| pubmed-article:12574738 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:12574738 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:12574738 | pubmed:pagination | 124-31 | lld:pubmed |
| pubmed-article:12574738 | pubmed:dateRevised | 2007-11-15 | lld:pubmed |
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| pubmed-article:12574738 | pubmed:meshHeading | pubmed-meshheading:12574738... | lld:pubmed |
| pubmed-article:12574738 | pubmed:year | 2003 | lld:pubmed |
| pubmed-article:12574738 | pubmed:articleTitle | Contrast-enhanced Doppler hemodynamics for noninvasive assessment of patients with chronic heart failure and left ventricular systolic dysfunction. | lld:pubmed |
| pubmed-article:12574738 | pubmed:affiliation | Unità Operativa di Cardiologia, Villamarina Hospital, Pisa, Italy. frank.dini@tiscali.it | lld:pubmed |
| pubmed-article:12574738 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:12574738 | pubmed:publicationType | Evaluation Studies | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:12574738 | lld:pubmed |
