Advanced

Reduced high-frequency QRS components in electrocardiogram leads facing an area of the heart with intraventricular conduction delay due to bundle branch block.

Trägårdh, Elin LU ; Pettersson, Jonas LU ; Wagner, Galen S and Pahlm, Olle LU (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:
author
organization
publishing date
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
2007-07-24 11:41:35
date last changed
2017-01-15 03:40:22
@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},
  keyword      = {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},
  volume       = {40},
  year         = {2007},
}