2.50
Hdl Handle:
http://hdl.handle.net/10755/159694
Type:
Presentation
Title:
Estimating posterior and RV leads from the standard 12-lead ECG
Abstract:
Estimating posterior and RV leads from the standard 12-lead ECG
Conference Sponsor:Midwest Nursing Research Society
Conference Year:2001
Author:Wung, Shu-Fen, PhD
P.I. Institution Name:University of Arizona
Title:Associate Professor
Contact Address:College of Nursing, PO Box 210203, Tucson, AZ, 85721-0203, USA
Contact Telephone:520.626.4305
The purpose of this study was to determine if posterior and right ventricular (RV) ECG leads can be accurately estimated from the standard 12-lead ECG. Methods: Continuous 18-lead ECGs (12+V3-5R +V7-9) were recorded in 68 patients with left circumflex (LCX) balloon occlusions (posterior ischemia model) or proximal right coronary artery (RCA) balloon occlusions (RV ische mia model). ST amplitudes from the 12 standard leads were then used to estimate ST amplitudes for posterior and RV leads, using the transformation technique of Lux. Results: Estimated ST amplitudes in the posterior and RV leads are frequently underestimated at pre-angioplasty baseline and during occlusions. In 53 LCX occlusions, 3 patients (16%) had ST elevation > 1mm in directly measured posterior leads but the estimated posterior leads did not reach 1mm. During 16 proximal RCA occlusions, 5 patients (50%) exhibited ST elevation > 1mm in directly measured RV leads but the estimated RV leads did not reach 1mm. Conclusion: Posterior leads can be accurately estimated from the standard 12-lead ECG in majority of patients with LCX-related acute ischemia. Future studies are needed to fine-turning the transformation technique to minimize disparity in ST amplitudes between estimated and directly measured posterior and RV leads.
Repository Posting Date:
26-Oct-2011
Date of Publication:
17-Oct-2011
Sponsors:
Midwest Nursing Research Society

Full metadata record

DC FieldValue Language
dc.typePresentationen_GB
dc.titleEstimating posterior and RV leads from the standard 12-lead ECGen_GB
dc.identifier.urihttp://hdl.handle.net/10755/159694-
dc.description.abstract<table><tr><td colspan="2" class="item-title">Estimating posterior and RV leads from the standard 12-lead ECG</td></tr><tr class="item-sponsor"><td class="label">Conference Sponsor:</td><td class="value">Midwest Nursing Research Society</td></tr><tr class="item-year"><td class="label">Conference Year:</td><td class="value">2001</td></tr><tr class="item-author"><td class="label">Author:</td><td class="value">Wung, Shu-Fen, PhD</td></tr><tr class="item-institute"><td class="label">P.I. Institution Name:</td><td class="value">University of Arizona</td></tr><tr class="item-author-title"><td class="label">Title:</td><td class="value">Associate Professor</td></tr><tr class="item-address"><td class="label">Contact Address:</td><td class="value">College of Nursing, PO Box 210203, Tucson, AZ, 85721-0203, USA</td></tr><tr class="item-phone"><td class="label">Contact Telephone:</td><td class="value">520.626.4305</td></tr><tr class="item-email"><td class="label">Email:</td><td class="value">shufen@uic.edu</td></tr><tr><td colspan="2" class="item-abstract">The purpose of this study was to determine if posterior and right ventricular (RV) ECG leads can be accurately estimated from the standard 12-lead ECG. Methods: Continuous 18-lead ECGs (12+V3-5R +V7-9) were recorded in 68 patients with left circumflex (LCX) balloon occlusions (posterior ischemia model) or proximal right coronary artery (RCA) balloon occlusions (RV ische mia model). ST amplitudes from the 12 standard leads were then used to estimate ST amplitudes for posterior and RV leads, using the transformation technique of Lux. Results: Estimated ST amplitudes in the posterior and RV leads are frequently underestimated at pre-angioplasty baseline and during occlusions. In 53 LCX occlusions, 3 patients (16%) had ST elevation &gt; 1mm in directly measured posterior leads but the estimated posterior leads did not reach 1mm. During 16 proximal RCA occlusions, 5 patients (50%) exhibited ST elevation &gt; 1mm in directly measured RV leads but the estimated RV leads did not reach 1mm. Conclusion: Posterior leads can be accurately estimated from the standard 12-lead ECG in majority of patients with LCX-related acute ischemia. Future studies are needed to fine-turning the transformation technique to minimize disparity in ST amplitudes between estimated and directly measured posterior and RV leads.</td></tr></table>en_GB
dc.date.available2011-10-26T22:14:55Z-
dc.date.issued2011-10-17en_GB
dc.date.accessioned2011-10-26T22:14:55Z-
dc.description.sponsorshipMidwest Nursing Research Societyen_GB
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