Linked Life Data

10496439

Source:http://linkedlifedata.com/resource/pubmed/id/10496439

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1999-9-28
pubmed:abstractText
Left ventricular (LV) systolic dysfunction, as indicated by a reduced LV ejection fraction (EF) is a potent predictor of cardiovascular mortality. Radionuclide angiography accurately and reproducibly assesses LVEF; however, echocardiography is used more frequently in clinical practice. Whether these methods predict similar mortality has not been fully investigated. We performed a retrospective analysis of patients with baseline radionuclide angiographic (RNA; n = 4,330) and echocardiographic (echo; n = 1,376) based EFs < or =0.35 who were enrolled in the Studies Of Left Ventricular Dysfunction (SOLVD) to address this hypothesis. After adjusting for important prognostic variables, the risk of death (RR 1.15; 95% confidence interval 1.01 to 1.30; p = 0.03) and of cardiovascular death (RR 1.15; 95% confidence interval 1.01 to 1.32; p = 0.04) was higher for patients with ECG-based EFs. To compare the 2 techniques across a range of EF values, we divided the cohort into tertiles of EF. The adjusted risk estimates for all-cause and cardiovascular mortality were similar within each tertile. Of note, the mortality difference in patients with echo- versus RNA-based EFs was most prominent in women. Further, patients with echo-based EFs had significantly higher mortality at sites where this technique was less frequently used to assess the EF. Thus, for a given EF < or =0.35, an echo-based value was associated with a higher risk of death compared with the RNA-based method of measurement. These data suggest that EF values determined by echocardiography and radionuclide angiography predict different mortality and this may, in part, be related to technical proficiency as well as patient characteristics.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0002-9149
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
299-303
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Comparison of echocardiography and radionuclide angiography as predictors of mortality in patients with left ventricular dysfunction (studies of left ventricular dysfunction).
pubmed:affiliation
Clinical Trials Research Group and Office of Biostatistics Research, Division of Epidemiology and Clinical Applications, National Heart, Lung, and Blood Institute, Bethesda, Maryland 20892, USA. RashidH@gwgate.nhlbi.nih.gov
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't