Maynard, SJ, Riddell, JW, Menown, IBA, Allen, J, Anderson, JMCC, Khan, MM and Adgey, AAJ (2004) Body surface potential mapping improves detection of ST segment alteration during percutaneous coronary intervention. International Journal of Cardiology, 93 (2-3). pp. 203-210. [Journal article]
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URL: http://ovidsp.ovid.com/athens/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=emed6&AN=2004084436; http://openurl.ac.uk/athens:uls/Resolver/?genre=article&sid=OVID:emed6&issn=0167-5273&isbn=&volume=93&issue=2-3&spage=203&date=2004&pid=<author>Maynard+S.J.
Background: The 12-lead electrocardiogram underestimates ST segment alteration in acute coronary syndromes compared with multi-lead body surface mapping. We assessed whether 80-lead mapping would improve detection of ST alteration during percutaneous coronary intervention. Methods: Simultaneous maps and 12-lead electrocardiograms were recorded pre-procedure, during balloon inflation and post-procedure from patients undergoing elective intervention to native coronary arteries. Recordings were obtained from 39 inflations (19 patients). All arteries were successfully stented. Results: Mean 'lead specific' ST alteration (the difference in ST elevation/depression between pre-procedure and inflation recordings in the lead showing maximal ST alteration) was greater on the map than on electrocardiogram, both for ST elevation (0.16+/-0.02 vs. 0.06+/-0.01 mV; p<0.001) and ST depression (0.11+/-0.017 vs. -0.03+/-0.006 mV; p<0.001). During first inflations (n=19), mean lead specific ST elevation and depression on map were greater than on electrocardiogram (0.20+/-0.034 vs. 0.07+/-0.015 mV; p<0.001 and 0.11+/-0.029 vs. 0.03+/-0.009 mV; p=0.001, respectively). Mapping detected greater summated ST elevation and depression during inflation than electrocardiogram (0.04+/-0.005 vs. 0.021+/-0.003 mV; p<0.001 and 0.026+/-0.004 vs. 0.011+/-0.002 mV; p<0.001, respectively). Qualitative analysis of maps and electrocardiograms showed that 21/39 (53.8%) maps recorded during inflation met criteria for myocardial ischaemia compared with 7/39 (17.9%) electrocardiograms (p<0.001). Conclusion: Body surface mapping compared with the 12-lead electrocardiogram improves detection of myocardial ischaemia during intervention. 2003 Elsevier Ireland Ltd. All rights reserved.
|Item Type:||Journal article|
|Keywords:||adult; article; clinical article; controlled study; electrocardiogram; electrocardiography; female; heart muscle ischemia/su [Surgery]; human; male; percutaneous coronary intervention; priority journal; qualitative analysis; recording; ST segment depression; ST segment elevation; stent|
|Faculties and Schools:||Faculty of Computing & Engineering|
Faculty of Computing & Engineering > School of Engineering
|Deposited By:||Mrs Ann Blair|
|Deposited On:||29 Jul 2011 13:26|
|Last Modified:||29 Jul 2011 13:26|
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