Document Detail

Perioperative tissue Doppler echocardiography and bypass graft flowmetry in patients undergoing coronary revascularization: predictive power for late recovery of regional myocardial function.
MedLine Citation:
PMID:  12411906     Owner:  NLM     Status:  MEDLINE    
To assess if recovery of regional myocardial function can be predicted by perioperative Doppler tissue echocariography, 20 patients undergoing coronary artery bypass graft surgery (mean 4.1 grafts) had serial transthoracic and transesophageal echocardiography. Systolic velocities were lower in basal posterior and anterior segments, and higher in the midanterior septum, at intraoperative transesophageal echocardiography compared with preoperative transthoracic echocardiography (-45%, -30%, +18%, respectively), but comparable elsewhere. After bypass, velocities were increased in midposterior, basal lateral, basal anterior, and midanterior septal segments (+41%, 25%, 27%, 44%, respectively, P <.05). Increased velocities in circumflex segments at 6 weeks (midposterior, basal lateral, and midlateral +54%, 45%, 39%, respectively, P <.05) were not predicted by perioperative changes or related to graft flow (transit-time flowmetry; R -0.09, -0.14, and -0.32, respectively, not significant). Myocardial velocities measured by transthoracic and transesophageal echocardiography are not comparable in segments with different angles of insonation. Perioperative changes in resting myocardial systolic velocity are highly variable and do not predict late recovery.
R Ian Williams; Rune Haaverstad; Georgios Sianos; Eleni Vourvouri; Alan G Fraser
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography     Volume:  15     ISSN:  0894-7317     ISO Abbreviation:  J Am Soc Echocardiogr     Publication Date:  2002 Oct 
Date Detail:
Created Date:  2002-11-04     Completed Date:  2003-02-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8801388     Medline TA:  J Am Soc Echocardiogr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1202-10     Citation Subset:  IM    
Cardiovascular Sciences Research Group, University of Wales College of Medicine, Cardiff, UK.
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MeSH Terms
Arteries / physiopathology,  surgery
Blood Flow Velocity / physiology
Cardiopulmonary Bypass
Coronary Artery Bypass*
Coronary Vessels / physiopathology,  surgery
Echocardiography, Doppler*
Feasibility Studies
Follow-Up Studies
Middle Aged
Myocardial Ischemia / diagnosis,  physiopathology,  surgery
Myocardial Revascularization*
Perioperative Care*
Predictive Value of Tests
Preoperative Care
Recovery of Function / physiology
Systole / physiology
Time Factors
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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