Reduced high-frequency QRS components in electrocardiogram leads facing an area of the heart with intraventricular conduction delay due to bundle branch block.
(2007) In Journal of Electrocardiology 40(2). p.127-132- Abstract
- Background: The mechanisms underlying high-frequency QRS components (HF-QRS) are incompletely understood. One theory is that HF-QRS are related to the conduction velocity of the heart. The purpose was to test this hypothesis by comparing HF-QRS in patients with left or right bundle branch block (LBBB and RBBB, respectively) to those in healthy subjects and in patients with ischemic heart disease (IHD). Methods: Twenty-two patients with LBBB, 19 patients with RBBB, 63 normal subjects, and 64 patients with IHD were included. Twelve-lead electrocardiograms were analyzed in the frequency interval 150 to 250 Hz. Results: The study showed reduced HF-QRS in patients with LBBB compared with healthy subjects and patients with IHD. The difference,... (More)
- Background: The mechanisms underlying high-frequency QRS components (HF-QRS) are incompletely understood. One theory is that HF-QRS are related to the conduction velocity of the heart. The purpose was to test this hypothesis by comparing HF-QRS in patients with left or right bundle branch block (LBBB and RBBB, respectively) to those in healthy subjects and in patients with ischemic heart disease (IHD). Methods: Twenty-two patients with LBBB, 19 patients with RBBB, 63 normal subjects, and 64 patients with IHD were included. Twelve-lead electrocardiograms were analyzed in the frequency interval 150 to 250 Hz. Results: The study showed reduced HF-QRS in patients with LBBB compared with healthy subjects and patients with IHD. The difference, however, was small in lead V-1 and V-2. In patients with RBBB, no differences in HF-QRS could be detected except in few leads; among those is lead V-1. Conclusion: The results support the theory that HF-QRS are related to the conduction velocity of the heart. (c) 2007 Elsevier Inc. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/160040
- author
- Trägårdh, Elin LU ; Pettersson, Jonas LU ; Wagner, Galen S and Pahlm, Olle LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- intraventricular conduction delay, HF-QRS, bundle branch block
- in
- Journal of Electrocardiology
- volume
- 40
- issue
- 2
- pages
- 127 - 132
- publisher
- Elsevier
- external identifiers
-
- wos:000245166900005
- scopus:33847411542
- ISSN
- 1532-8430
- DOI
- 10.1016/j.jelectrocard.2006.07.002
- language
- English
- LU publication?
- yes
- id
- 6d2ff2c7-18ab-4e51-9b54-8612ebe6f5b7 (old id 160040)
- alternative location
- http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16919677&dopt=Abstract
- date added to LUP
- 2016-04-01 12:28:17
- date last changed
- 2022-03-29 01:19:03
@article{6d2ff2c7-18ab-4e51-9b54-8612ebe6f5b7,
abstract = {{Background: The mechanisms underlying high-frequency QRS components (HF-QRS) are incompletely understood. One theory is that HF-QRS are related to the conduction velocity of the heart. The purpose was to test this hypothesis by comparing HF-QRS in patients with left or right bundle branch block (LBBB and RBBB, respectively) to those in healthy subjects and in patients with ischemic heart disease (IHD). Methods: Twenty-two patients with LBBB, 19 patients with RBBB, 63 normal subjects, and 64 patients with IHD were included. Twelve-lead electrocardiograms were analyzed in the frequency interval 150 to 250 Hz. Results: The study showed reduced HF-QRS in patients with LBBB compared with healthy subjects and patients with IHD. The difference, however, was small in lead V-1 and V-2. In patients with RBBB, no differences in HF-QRS could be detected except in few leads; among those is lead V-1. Conclusion: The results support the theory that HF-QRS are related to the conduction velocity of the heart. (c) 2007 Elsevier Inc. All rights reserved.}},
author = {{Trägårdh, Elin and Pettersson, Jonas and Wagner, Galen S and Pahlm, Olle}},
issn = {{1532-8430}},
keywords = {{intraventricular conduction delay; HF-QRS; bundle branch block}},
language = {{eng}},
number = {{2}},
pages = {{127--132}},
publisher = {{Elsevier}},
series = {{Journal of Electrocardiology}},
title = {{Reduced high-frequency QRS components in electrocardiogram leads facing an area of the heart with intraventricular conduction delay due to bundle branch block.}},
url = {{http://dx.doi.org/10.1016/j.jelectrocard.2006.07.002}},
doi = {{10.1016/j.jelectrocard.2006.07.002}},
volume = {{40}},
year = {{2007}},
}