Advanced

Physiological variation in left atrial transverse orientation does not influence orthogonal P-wave morphology

Petersson, Richard LU ; Mosén, Henrik LU ; Steding-Ehrenborg, Katarina LU ; Carlson, Jonas LU ; Faxén, Lisa; Mohtadi, Alan; Platonov, Pyotr G. LU and Holmqvist, Fredrik LU (2016) In Annals of Noninvasive Electrocardiology
Abstract

Background: It has previously been demonstrated that orthogonal P-wave morphology in healthy athletes does not depend on atrial size, but the possible impact of left atrial orientation on P-wave morphology remains unknown. In this study, we investigated if left atrial transverse orientation affects P-wave morphology in different populations. Methods: Forty-seven patients with atrial fibrillation, 21 patients with arrhythmogenic right ventricular cardiomyopathy, 67 healthy athletes, and 56 healthy volunteers were included. All underwent cardiac magnetic resonance imaging or computed tomography and the orientation of the left atrium was determined. All had 12-lead electrocardiographic recordings, which were transformed into orthogonal... (More)

Background: It has previously been demonstrated that orthogonal P-wave morphology in healthy athletes does not depend on atrial size, but the possible impact of left atrial orientation on P-wave morphology remains unknown. In this study, we investigated if left atrial transverse orientation affects P-wave morphology in different populations. Methods: Forty-seven patients with atrial fibrillation, 21 patients with arrhythmogenic right ventricular cardiomyopathy, 67 healthy athletes, and 56 healthy volunteers were included. All underwent cardiac magnetic resonance imaging or computed tomography and the orientation of the left atrium was determined. All had 12-lead electrocardiographic recordings, which were transformed into orthogonal leads and orthogonal P-wave morphology was obtained. Results: The median left atrial transverse orientation was 87 (83, 91) degrees (lower and upper quartiles) in the total study population. There was no difference in left atrial transverse orientation between individuals with different orthogonal P-wave morphologies. Conclusions: The physiological variation in left atrial orientation was small within as well as between the different populations. There was no difference in left atrial transverse orientation between subjects with type 1 and type 2 P-wave morphology, implying that in this setting the P-wave morphology was more dependent on atrial conduction than orientation.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
in press
subject
keywords
Atrial electrophysiology, Atrial orientation, Atrium, Echocardiography, Electrocardiography, P-wave morphology
in
Annals of Noninvasive Electrocardiology
publisher
Wiley-Blackwell
external identifiers
  • Scopus:84981747113
ISSN
1082-720X
DOI
10.1111/anec.12392
language
English
LU publication?
yes
id
aa6e4798-df2a-4132-9955-af2f47f9937b
date added to LUP
2016-09-05 15:41:39
date last changed
2016-09-20 03:02:54
@misc{aa6e4798-df2a-4132-9955-af2f47f9937b,
  abstract     = {<p>Background: It has previously been demonstrated that orthogonal P-wave morphology in healthy athletes does not depend on atrial size, but the possible impact of left atrial orientation on P-wave morphology remains unknown. In this study, we investigated if left atrial transverse orientation affects P-wave morphology in different populations. Methods: Forty-seven patients with atrial fibrillation, 21 patients with arrhythmogenic right ventricular cardiomyopathy, 67 healthy athletes, and 56 healthy volunteers were included. All underwent cardiac magnetic resonance imaging or computed tomography and the orientation of the left atrium was determined. All had 12-lead electrocardiographic recordings, which were transformed into orthogonal leads and orthogonal P-wave morphology was obtained. Results: The median left atrial transverse orientation was 87 (83, 91) degrees (lower and upper quartiles) in the total study population. There was no difference in left atrial transverse orientation between individuals with different orthogonal P-wave morphologies. Conclusions: The physiological variation in left atrial orientation was small within as well as between the different populations. There was no difference in left atrial transverse orientation between subjects with type 1 and type 2 P-wave morphology, implying that in this setting the P-wave morphology was more dependent on atrial conduction than orientation.</p>},
  author       = {Petersson, Richard and Mosén, Henrik and Steding-Ehrenborg, Katarina and Carlson, Jonas and Faxén, Lisa and Mohtadi, Alan and Platonov, Pyotr G. and Holmqvist, Fredrik},
  issn         = {1082-720X},
  keyword      = {Atrial electrophysiology,Atrial orientation,Atrium,Echocardiography,Electrocardiography,P-wave morphology},
  language     = {eng},
  publisher    = {ARRAY(0xcf8f890)},
  series       = {Annals of Noninvasive Electrocardiology},
  title        = {Physiological variation in left atrial transverse orientation does not influence orthogonal P-wave morphology},
  url          = {http://dx.doi.org/10.1111/anec.12392},
  year         = {2016},
}