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Non-invasive assessment of atrial electrophysiology in AF – Influence of posture change

Meurling, Carl LU ; Hnatkova, K; Waktare, J E P; Nagayoshi, H; Janota, T; Camm, A J and Malik, M (1998) Computers in Cardiology 1998. Annual conference of computers in cardiology In Computers in Cardiology 25. p.637-640
Abstract
The authors sought to non-invasively defect changes in atrial fibrillation rhythm during autonomic provocative maneuvers. Digital Holter from 23 patients with chronic AF before and after active postural change were subjected to routine editing, and then underwent QRS and T wave subtraction, leaving pure atrial fibrillatory records. Spectral analysis by autoregressive method was performed on this record. The total spectral power, and that in the 4-10 Hz range was calculated and compared before and after posture change. Analysable data was acquired front 17 patients. Postural change caused a fall in spectral power (total power: from 19442 to 8154, 4-10 Hz power: 4031 to 1764), and a concentration of the power in the 4-10 Hz range. Increased... (More)
The authors sought to non-invasively defect changes in atrial fibrillation rhythm during autonomic provocative maneuvers. Digital Holter from 23 patients with chronic AF before and after active postural change were subjected to routine editing, and then underwent QRS and T wave subtraction, leaving pure atrial fibrillatory records. Spectral analysis by autoregressive method was performed on this record. The total spectral power, and that in the 4-10 Hz range was calculated and compared before and after posture change. Analysable data was acquired front 17 patients. Postural change caused a fall in spectral power (total power: from 19442 to 8154, 4-10 Hz power: 4031 to 1764), and a concentration of the power in the 4-10 Hz range. Increased sympathetic tone due to active postural change causes a fall in total spectral power and a concentration of that power in the AF frequency band. Atrial electrophysiology during AF can be studied noninvasivel. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Computers in Cardiology
volume
25
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
Computers in Cardiology 1998. Annual conference of computers in cardiology
external identifiers
  • Scopus:12844251482
ISBN
0-7803-5200-9
DOI
10.1109/CIC.1998.731954
language
English
LU publication?
no
id
51ec2af3-5c72-46cb-be84-ab78f4a61ecf (old id 1114071)
date added to LUP
2008-07-16 15:44:37
date last changed
2016-10-13 04:43:16
@misc{51ec2af3-5c72-46cb-be84-ab78f4a61ecf,
  abstract     = {The authors sought to non-invasively defect changes in atrial fibrillation rhythm during autonomic provocative maneuvers. Digital Holter from 23 patients with chronic AF before and after active postural change were subjected to routine editing, and then underwent QRS and T wave subtraction, leaving pure atrial fibrillatory records. Spectral analysis by autoregressive method was performed on this record. The total spectral power, and that in the 4-10 Hz range was calculated and compared before and after posture change. Analysable data was acquired front 17 patients. Postural change caused a fall in spectral power (total power: from 19442 to 8154, 4-10 Hz power: 4031 to 1764), and a concentration of the power in the 4-10 Hz range. Increased sympathetic tone due to active postural change causes a fall in total spectral power and a concentration of that power in the AF frequency band. Atrial electrophysiology during AF can be studied noninvasivel.},
  author       = {Meurling, Carl and Hnatkova, K and Waktare, J E P and Nagayoshi, H and Janota, T and Camm, A J and Malik, M},
  isbn         = {0-7803-5200-9},
  language     = {eng},
  pages        = {637--640},
  publisher    = {ARRAY(0xb169fe8)},
  series       = {Computers in Cardiology},
  title        = {Non-invasive assessment of atrial electrophysiology in AF – Influence of posture change},
  url          = {http://dx.doi.org/10.1109/CIC.1998.731954},
  volume       = {25},
  year         = {1998},
}