Document Detail

Twelve-lead high-frequency QRS electrocardiography during anesthesia in healthy subjects.
MedLine Citation:
PMID:  15781519     Owner:  NLM     Status:  MEDLINE    
Analysis of the high-frequency (HF) components of the QRS complex has been shown to be a more sensitive indicator of myocardial ischemia and infarction than conventional ST segment analysis in settings outside of the operating room. In this study, we documented the effect of general anesthesia on HF QRS analysis in healthy patients as the first step in determining the potential of this technique for monitoring anesthetized patients. HF QRS electrocardiograms (ECGs) were obtained from all 12 ECG leads in 30 healthy subjects before and after the induction of anesthesia. When compared with preinduction values, there were significant postinduction changes in multiple variables of the HF QRS in many leads studied that were within previously described normal limits. Additional study is needed to understand the potential of this monitoring technique for enhancing detection of myocardial ischemia in the anesthetized population.
Thomas N Spackman; Martin D Abel; Todd T Schlegel
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Anesthesia and analgesia     Volume:  100     ISSN:  0003-2999     ISO Abbreviation:  Anesth. Analg.     Publication Date:  2005 Apr 
Date Detail:
Created Date:  2005-03-22     Completed Date:  2005-04-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1310650     Medline TA:  Anesth Analg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1043-7     Citation Subset:  AIM; IM    
Department of Anesthesiology, Division of Cardiovascular/Thoracic Anesthesiology, Mayo Clinic College of Medicine, Rochester, MN, USA.
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MeSH Terms
Electrocardiography / drug effects,  instrumentation*
Middle Aged
Monitoring, Intraoperative / instrumentation*

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

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