Menu
×
Main Library
9 a.m. - 6 p.m.
Phone: (843) 805-6930
West Ashley Library
9 a.m. - 4 p.m.
Phone: (843) 766-6635
Folly Beach Library
Closed for renovations
Phone: (843) 588-2001
John L. Dart Library
9 a.m. - 6 p.m.
Phone: (843) 722-7550
St. Paul's/Hollywood Library
9 a.m. - 5 p.m.
Phone: (843) 889-3300
Mt. Pleasant Library
9 a.m. – 6 p.m.
Phone: (843) 849-6161
Dorchester Road Library
9 a.m. - 6 p.m.
Phone: (843) 552-6466
Edgar Allan Poe/Sullivan's Island Library
9 a.m. - 6 p.m.
Phone: (843) 883-3914
John's Island Library
9 a.m. - 6 p.m.
Phone: (843) 559-1945
McClellanville Library
Closed for renovations
Phone: (843) 887-3699
Edisto Library
9 a.m. - 3 p.m.
Phone: (843) 869-2355
Wando Mount Pleasant Library
9 a.m. - 6 p.m.
Phone: (843) 805-6888
Otranto Road Library
9 a.m. - 6 p.m.
Phone: (843) 572-4094
Hurd/St. Andrews Library
9 a.m. - 6 p.m.
Phone: (843) 766-2546
Baxter-Patrick James Island
9 a.m. - 6 p.m.
Phone: (843) 795-6679
Bees Ferry West Ashley Library
9 a.m. - 6 p.m.
Phone: (843) 805-6892
Village Library
9 a.m. - 6 p.m.
Phone: (843) 884-9741
Keith Summey North Charleston Library
9 a.m. – 6 p.m.
Phone: (843) 744-2489
Mobile Library
9 a.m. - 5 p.m.
Phone: (843) 805-6909
Today's Hours
Main Library
9 a.m. - 6 p.m.
Phone: (843) 805-6930
West Ashley Library
9 a.m. - 4 p.m.
Phone: (843) 766-6635
Folly Beach Library
Closed for renovations
Phone: (843) 588-2001
John L. Dart Library
9 a.m. - 6 p.m.
Phone: (843) 722-7550
St. Paul's/Hollywood Library
9 a.m. - 5 p.m.
Phone: (843) 889-3300
Mt. Pleasant Library
9 a.m. – 6 p.m.
Phone: (843) 849-6161
Dorchester Road Library
9 a.m. - 6 p.m.
Phone: (843) 552-6466
Edgar Allan Poe/Sullivan's Island Library
9 a.m. - 6 p.m.
Phone: (843) 883-3914
John's Island Library
9 a.m. - 6 p.m.
Phone: (843) 559-1945
McClellanville Library
Closed for renovations
Phone: (843) 887-3699
Edisto Library
9 a.m. - 3 p.m.
Phone: (843) 869-2355
Wando Mount Pleasant Library
9 a.m. - 6 p.m.
Phone: (843) 805-6888
Otranto Road Library
9 a.m. - 6 p.m.
Phone: (843) 572-4094
Hurd/St. Andrews Library
9 a.m. - 6 p.m.
Phone: (843) 766-2546
Baxter-Patrick James Island
9 a.m. - 6 p.m.
Phone: (843) 795-6679
Bees Ferry West Ashley Library
9 a.m. - 6 p.m.
Phone: (843) 805-6892
Village Library
9 a.m. - 6 p.m.
Phone: (843) 884-9741
Keith Summey North Charleston Library
9 a.m. – 6 p.m.
Phone: (843) 744-2489
Mobile Library
9 a.m. - 5 p.m.
Phone: (843) 805-6909
Patron Login
menu
Item request has been placed!
×
Item request cannot be made.
×
Processing Request
First-phase ejection fraction by cardiovascular magnetic resonance predicts outcomes in aortic stenosis.
Item request has been placed!
×
Item request cannot be made.
×
Processing Request
- Author(s): Gu, Haotian; Bing, Rong; Chin, Calvin; Fang, Lingyun; White, Audrey C.; Everett, Russell; Spath, Nick; Park, Eunsoo; Chambers, John B.; Newby, David E.; Chiribiri, Amedeo; Dweck, Marc R.; Chowienczyk, Phil
- Source:
Journal of Cardiovascular Magnetic Resonance (BioMed Central); 6/9/2021, Vol. 23 Issue 1, p1-11, 11p- Subject Terms:
AORTIC valve surgery; ECHOCARDIOGRAPHY; BIOMARKERS; VENTRICULAR ejection fraction; RESEARCH evaluation; CONFIDENCE intervals; CARDIOMYOPATHIES; MULTIVARIATE analysis; AORTIC stenosis; MAGNETIC resonance imaging; FIBROSIS; TREATMENT effectiveness; RISK assessment; COMPARATIVE studies; INTER-observer reliability; PROSTHETIC heart valves; DISEASE complications; PROPORTIONAL hazards models - Source:
- Additional Information
- Abstract: Background: First-phase ejection fraction (EF1; the ejection fraction measured during active systole up to the time of maximal aortic flow) measured by transthoracic echocardiography (TTE) is a powerful predictor of outcomes in patients with aortic stenosis. We aimed to assess whether cardiovascular magnetic resonance (CMR) might provide more precise measurements of EF1 than TTE and to examine the correlation of CMR EF1 with measures of fibrosis. Methods: In 141 patients with at least mild aortic stenosis, we measured CMR EF1 from a short-axis 3D stack and compared its variability with TTE EF1, and its associations with myocardial fibrosis and clinical outcome (aortic valve replacement (AVR) or death). Results: Intra- and inter-observer variation of CMR EF1 (standard deviations of differences within and between observers of 2.3% and 2.5% units respectively) was approximately 50% that of TTE EF1. CMR EF1 was strongly predictive of AVR or death. On multivariable Cox proportional hazards analysis, the hazard ratio for CMR EF1 was 0.93 (95% confidence interval 0.89–0.97, p = 0.001) per % change in EF1 and, apart from aortic valve gradient, CMR EF1 was the only imaging or biochemical measure independently predictive of outcome. Indexed extracellular volume was associated with AVR or death, but not after adjusting for EF1. Conclusions: EF1 is a simple robust marker of early left ventricular impairment that can be precisely measured by CMR and predicts outcome in aortic stenosis. Its measurement by CMR is more reproducible than that by TTE and may facilitate left ventricular structure–function analysis. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Journal of Cardiovascular Magnetic Resonance (BioMed Central) is the property of BioMed Central and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Abstract:
Contact CCPL
Copyright 2022 Charleston County Public Library Powered By EBSCO Stacks 3.3.0 [350.3] | Staff Login
No Comments.