Document Detail

Supine vs semirecumbent and upright 12-lead electrocardiogram: does change in body position alter the electrocardiographic interpretation for ischemia?
MedLine Citation:
PMID:  17870476     Owner:  NLM     Status:  MEDLINE    
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.
Robert H Baevsky; Marc D Haber; Fidela S Blank; Howard Smithline
Related Documents :
15958356 - Thirty day prognosis of patients with acute pulmonary oedema complicating acute coronar...
11691496 - St segment resolution as a tool for assessing the efficacy of reperfusion therapy.
11019716 - Management of patients with non-st-segment elevation acute coronary syndromes: insights...
1211836 - Effects of intra-aortic balloon pumping on experimental acute myocardial ischaemia.
7617506 - Ruptured interventricular septum after blunt chest trauma: ultrasonographic diagnosis.
12132516 - Preconditioning effect during coronary angioplasty in patients with stable angina pecto...
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  The American journal of emergency medicine     Volume:  25     ISSN:  1532-8171     ISO Abbreviation:  Am J Emerg Med     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-09-17     Completed Date:  2007-10-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8309942     Medline TA:  Am J Emerg Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  753-6     Citation Subset:  IM    
Department of Emergency Medicine, Tufts University School of Medicine, Baystate Medical Center, Springfield, MA 01199, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Electrocardiography / methods*
Emergency Service, Hospital
Middle Aged
Myocardial Ischemia / diagnosis*,  physiopathology*
Observer Variation
Predictive Value of Tests
Single-Blind Method

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

Previous Document:  How sensitive is the synovial fluid white blood cell count in diagnosing septic arthritis?
Next Document:  Recovery from a psychotropic drug overdose tends to depend on the time from ingestion to arrival, th...