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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2000-3-21
pubmed:abstractText
Kornreich identified 6 body surface potential mapping (BSPM) leads outside the standard 12-lead electrocardiographic (ECG) sites for optimal recognition of ST segment elevation (+) and depression (-) during acute ischemia in anterior, inferior, and posterior myocardial zones (A+, A-, I+, I-, P+, P-). No comparison has been made between the 6 selected BSPM leads and 18-lead ECG (12 + V3-5R + V7-9) in detecting acute myocardial ischemia during coronary occlusion. Continuous 18-lead ECG and 6 selected BSPM leads were recorded in 68 patients (77 vessels) undergoing coronary angioplasty during balloon occlusion. Ischemia was defined as ST segment deviation (deltaST) > or = 100 microV > or = 1 lead from the preinflation baseline. The 18-lead ECG was a more frequent source of the maximal deltaST lead during left anterior descending artery, right coronary artery, and left circumflex artery occlusion (71 [92%]) than the 6 selected BSPM leads (5 [7%]). The 18-lead ECG was more efficacious than the 6 selected BSPM leads for detecting acute myocardial ischemia in the group as whole. The 18-lead ECG was also more efficacious for detecting right ventricular ischemia associated with proximal right coronary artery occlusion and for detecting ST segment elevation during left circumflex artery occlusion. Our findings indicate that the 18-lead ECG is the most frequent source of maximally deviated lead and is more efficacious in detecting myocardial ischemia during balloon occlusion than the 6 selected BSPM leads. The 6 selected BSPM leads do not add information above and beyond the 12- or 18-lead ECG, and thus cannot be recommended as optimal sites for continuous ST segment monitoring of patients with acute coronary syndromes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0022-0736
pubmed:author
pubmed:issnType
Print
pubmed:volume
32 Suppl
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
30-7
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:10688300-Aged, pubmed-meshheading:10688300-Angina, Unstable, pubmed-meshheading:10688300-Angioplasty, Balloon, Coronary, pubmed-meshheading:10688300-Body Surface Potential Mapping, pubmed-meshheading:10688300-Coronary Disease, pubmed-meshheading:10688300-Electrocardiography, pubmed-meshheading:10688300-Electrocardiography, Ambulatory, pubmed-meshheading:10688300-Female, pubmed-meshheading:10688300-Heart Conduction System, pubmed-meshheading:10688300-Humans, pubmed-meshheading:10688300-Male, pubmed-meshheading:10688300-Middle Aged, pubmed-meshheading:10688300-Myocardial Infarction, pubmed-meshheading:10688300-Myocardial Ischemia, pubmed-meshheading:10688300-Prospective Studies, pubmed-meshheading:10688300-Sensitivity and Specificity, pubmed-meshheading:10688300-Signal Processing, Computer-Assisted, pubmed-meshheading:10688300-Ventricular Function, Right
pubmed:year
1999
pubmed:articleTitle
Comparison of 18-lead ECG and selected body surface potential mapping leads in determining maximally deviated ST lead and efficacy in detecting acute myocardial ischemia during coronary occlusion.
pubmed:affiliation
Department of Physiological Nursing, University of California San Francisco, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't