Comparison of high-frequency QRS components and ST-segment elevation to detect and quantify acute myocardial ischemia.
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1541266
- author
- Ringborn, Michael LU ; Pettersson, Jonas LU ; Persson, Eva LU ; Warren, Stafford G ; Platonov, Pyotr LU ; Pahlm, Olle LU and Wagner, Galen S
- organization
- publishing date
- 2010
- 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
- 2016-04-04 07:03:24
- date last changed
- 2022-04-15 18:26:32
@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 (<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}}, doi = {{10.1016/j.jelectrocard.2009.11.009}}, volume = {{43}}, year = {{2010}}, }