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Comparison of high-frequency QRS components and ST-segment elevation to detect and quantify acute myocardial ischemia.

Ringborn, Michael LU ; Pettersson, Jonas LU ; Persson, Eva LU ; Warren, Stafford G; Platonov, Pyotr LU ; Pahlm, Olle LU and Wagner, Galen S (2010) In Journal of Electrocardiology 43. p.113-120
Abstract
OBJECTIVE: This study tests the ability of high-frequency components of the depolarization phase (HF-QRS) vs conventional ST-elevation criteria to detect and quantify myocardial ischemia. METHODS: Twenty-one patients admitted for elective percutaneous coronary intervention were included. Quantification of the ischemia was made by myocardial scintigraphy. High-resolution electrocardiogram before and during percutaneous coronary intervention was recorded and signal averaged. The HF-QRS were determined within the frequency band 150 to 250 Hz. ST-segment deviation was measured in the standard frequency range (<100 Hz). RESULTS: HF-QRS criteria were met by 76% of the patients, whereas 38% met the ST-elevation criteria (P = .008). Both HF-QRS... (More)
OBJECTIVE: This study tests the ability of high-frequency components of the depolarization phase (HF-QRS) vs conventional ST-elevation criteria to detect and quantify myocardial ischemia. METHODS: Twenty-one patients admitted for elective percutaneous coronary intervention were included. Quantification of the ischemia was made by myocardial scintigraphy. High-resolution electrocardiogram before and during percutaneous coronary intervention was recorded and signal averaged. The HF-QRS were determined within the frequency band 150 to 250 Hz. ST-segment deviation was measured in the standard frequency range (<100 Hz). RESULTS: HF-QRS criteria were met by 76% of the patients, whereas 38% met the ST-elevation criteria (P = .008). Both HF-QRS reduction and ST elevation correlated significantly with the amount of ischemia (HF-QRS: r = 0.59, P = .005 for extent and r = 0.69, P = .001 for severity; ST elevation: r = 0.49, P = .023 for extent and r = 0.57, P = .007 for severity). CONCLUSIONS: This study suggests that HF-QRS analysis could provide valuable information both to detect acute ischemia and to quantify myocardial area at risk. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Journal of Electrocardiology
volume
43
pages
113 - 120
publisher
Elsevier
external identifiers
  • wos:000277941400003
  • pmid:20060122
  • scopus:76549112164
ISSN
1532-8430
DOI
10.1016/j.jelectrocard.2009.11.009
language
English
LU publication?
yes
id
65b6402d-aae3-474b-9742-3dccbd1104c2 (old id 1541266)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/20060122?dopt=Abstract
date added to LUP
2010-02-02 12:43:02
date last changed
2018-05-29 11:15:54
@article{65b6402d-aae3-474b-9742-3dccbd1104c2,
  abstract     = {OBJECTIVE: This study tests the ability of high-frequency components of the depolarization phase (HF-QRS) vs conventional ST-elevation criteria to detect and quantify myocardial ischemia. METHODS: Twenty-one patients admitted for elective percutaneous coronary intervention were included. Quantification of the ischemia was made by myocardial scintigraphy. High-resolution electrocardiogram before and during percutaneous coronary intervention was recorded and signal averaged. The HF-QRS were determined within the frequency band 150 to 250 Hz. ST-segment deviation was measured in the standard frequency range (&lt;100 Hz). RESULTS: HF-QRS criteria were met by 76% of the patients, whereas 38% met the ST-elevation criteria (P = .008). Both HF-QRS reduction and ST elevation correlated significantly with the amount of ischemia (HF-QRS: r = 0.59, P = .005 for extent and r = 0.69, P = .001 for severity; ST elevation: r = 0.49, P = .023 for extent and r = 0.57, P = .007 for severity). CONCLUSIONS: This study suggests that HF-QRS analysis could provide valuable information both to detect acute ischemia and to quantify myocardial area at risk.},
  author       = {Ringborn, Michael and Pettersson, Jonas and Persson, Eva and Warren, Stafford G and Platonov, Pyotr and Pahlm, Olle and Wagner, Galen S},
  issn         = {1532-8430},
  language     = {eng},
  pages        = {113--120},
  publisher    = {Elsevier},
  series       = {Journal of Electrocardiology},
  title        = {Comparison of high-frequency QRS components and ST-segment elevation to detect and quantify acute myocardial ischemia.},
  url          = {http://dx.doi.org/10.1016/j.jelectrocard.2009.11.009},
  volume       = {43},
  year         = {2010},
}