Document Detail


Recovery of long-axis left ventricular function after aortic valve replacement in patients with severe aortic stenosis.
MedLine Citation:
PMID:  20584056     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND: Patients with aortic stenosis (AS) should undergo aortic valve replacement (AVR) before irreversible LV dysfunction has developed. Assessment of long-axis left ventricular (LV) function may assist in proper timing of AVR.
OBJECTIVES: To assess serial changes in long-axis LV function before and after AVR in patients with severe AS and preserved LV ejection fraction.
METHODS: The study comprised 27 consecutive patients (mean age 64.9 ± 11.7 years, 15 males) with symptomatic severe AS, scheduled for AVR. Seventeen subjects without known cardiac disease, matched for age, gender, LV ejection fraction and cardiovascular risk factors, served as a control group. Long-axis LV function assessment was done with tissue Doppler imaging at 3 weeks, 6 months, and 12 months after AVR.
RESULTS: Mean aortic valve area in the AS group was 0.70 ± 0.24 cm². Pre-AVR peak systolic mitral annular velocities were significantly lower compared to controls (6.7 ± 1.5 vs. 8.9 ± 2.0 cm/s, P < 0.05). Post-AVR peak systolic mitral annular velocities improved to 9.1 ± 2.9 at 3 weeks, 8.6 ± 2.7 at 6 months, and 8.1 ± 1.7 cm/s at 12 months (P < 0.05). Improvements were seen over the whole range of pre-AVR peak systolic mitral annular velocities. Patients with improved Sm after AVR (defined as ≥ 10% compared to baseline values) did not differ in baseline characteristics as compared to those who did not improve.
CONCLUSIONS: In patients with severe AS and preserved LV ejection fraction, abnormal systolic mitral annular velocities improve after AVR, independent of the pre-AVR value.
Authors:
Tjebbe W Galema; Sing-Chien Yap; Osama I I Soliman; Robert J Van Thiel; Folkert J Ten Cate; Hans J Brandenburg; Ad J J C Bogers; Maarten L Simoons; Marcel L Geleijnse
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  27     ISSN:  1540-8175     ISO Abbreviation:  Echocardiography     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1177-81     Citation Subset:  IM    
Copyright Information:
© 2010, Wiley Periodicals, Inc.
Affiliation:
Department of Cardiology, Thoraxcentre, Erasmus MC, Rotterdam, The Netherlands. t.w.galema@erasmusmc.nl
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