| Supine vs semirecumbent and upright 12-lead electrocardiogram: does change in body position alter the electrocardiographic interpretation for ischemia? | |
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MedLine Citation:
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PMID: 17870476 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: The goal of this study was to determine if a change in body position alters the 12-lead electrocardiographic (ECG) interpretation for ischemia and ST-segment elevation, the latter having direct implications for initial patient management in the emergency department. METHODS: Twelve-lead ECGs were sequentially obtained from a convenience sample of healthy adult volunteers in 3 positions (supine, 0 degrees; inclined, 45 degrees; and upright, 90 degrees). The tracings were randomized, blinded, and then independently read by 2 trained emergency medicine physicians who also assessed for the presence of ischemia and ST-segment elevation myocardial infarction. RESULTS: Seventy-five subjects were enrolled, with 7 (9%; 95% confidence interval [CI], 4-18) having ischemia on the supine ECG, 9 (12%; 95% CI, 6-22) on the incline, and 9 on the upright tracings. ST-segment elevation myocardial infarction pattern was present on 2 (3%; 95% CI, 0-9) supine, 2 inclined, and 2 upright ECGs. CONCLUSIONS: Changes in body position result in some ischemic variations of the 12-lead ECG. |
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Authors:
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Robert H Baevsky; Marc D Haber; Fidela S Blank; Howard Smithline |
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Publication Detail:
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Type: Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: The American journal of emergency medicine Volume: 25 ISSN: 1532-8171 ISO Abbreviation: Am J Emerg Med Publication Date: 2007 Sep |
Date Detail:
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Created Date: 2007-09-17 Completed Date: 2007-10-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8309942 Medline TA: Am J Emerg Med Country: United States |
Other Details:
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Languages: eng Pagination: 753-6 Citation Subset: IM |
Affiliation:
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Department of Emergency Medicine, Tufts University School of Medicine, Baystate Medical Center, Springfield, MA 01199, USA. robert.baevsky@bhs.org |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Electrocardiography / methods* Emergency Service, Hospital Female Humans Male Middle Aged Myocardial Ischemia / diagnosis*, physiopathology* Observer Variation Posture* Predictive Value of Tests Single-Blind Method |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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