Detection of inter-atrial conduction defects with unfiltered signal-averaged P-wave ECG in patients with lone atrial fibrillation
(2000) In Europace 2(1). p.32-41- Abstract
- AIMS: To demonstrate a possible inter-atrial conduction delay in patients with lone paroxysmal atrial fibrillation (PAF) using 'unfiltered' signal-averaged P-wave ECG (PSAECG) and compare these results with those obtained with conventional filter settings. METHODS AND RESULTS: Twenty one patients with lone PAF and 20 healthy volunteers (control group) were enrolled in the study. An orthogonal lead surface ECG was high-pass filtered at 0.8 Hz, averaged with template matching, and combined into a spatial magnitude ('unfiltered' technique). Results were compared with conventionally filtered (40-300 Hz) PSAECG. The filtered technique revealed no differences in P-wave duration between the two groups (121 +/- 12 vs 128 +/- 15 ms, control and PAF... (More)
- AIMS: To demonstrate a possible inter-atrial conduction delay in patients with lone paroxysmal atrial fibrillation (PAF) using 'unfiltered' signal-averaged P-wave ECG (PSAECG) and compare these results with those obtained with conventional filter settings. METHODS AND RESULTS: Twenty one patients with lone PAF and 20 healthy volunteers (control group) were enrolled in the study. An orthogonal lead surface ECG was high-pass filtered at 0.8 Hz, averaged with template matching, and combined into a spatial magnitude ('unfiltered' technique). Results were compared with conventionally filtered (40-300 Hz) PSAECG. The filtered technique revealed no differences in P-wave duration between the two groups (121 +/- 12 vs 128 +/- 15 ms, control and PAF groups respectively, ns). Double-peaked P-wave spatial magnitudes (interpeak distance >30 ms) were revealed in 11 of 21 PAF patients but only in two of 18 controls (P<0.01). The nadir in the spatial magnitude was located significantly later in the PAF group (114 +/- 13 vs 103 +/- 9 ms, P<0.01). CONCLUSION: 'Unfiltered' PSAECG revealed significant differences in orthogonal P-wave morphology in patients with lone PAF, indicating the possibility of an inter-atrial conduction delay, while conventional P-wave duration analysis failed to discriminate between the two groups. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1116590
- author
- Platonov, Pyotr
LU
; Carlson, Jonas
LU
; Ingemansson, Max LU ; Roijer, Anders LU ; Hansson, A ; Chireikin, L V and Olsson, Bertil LU
- organization
- publishing date
- 2000
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Signal-averaged P-wave ECG, paroxysmal atrial fibrillation, inter-atrial conduction
- in
- Europace
- volume
- 2
- issue
- 1
- pages
- 32 - 41
- publisher
- Oxford University Press
- external identifiers
-
- pmid:11227584
- scopus:0033760028
- pmid:11227584
- ISSN
- 1532-2092
- DOI
- 10.1053/eupc.1999.0072
- language
- English
- LU publication?
- yes
- id
- d2cdbd78-734d-409b-b1ca-a815d7c61efc (old id 1116590)
- date added to LUP
- 2016-04-01 12:17:49
- date last changed
- 2022-01-27 01:39:36
@article{d2cdbd78-734d-409b-b1ca-a815d7c61efc, abstract = {{AIMS: To demonstrate a possible inter-atrial conduction delay in patients with lone paroxysmal atrial fibrillation (PAF) using 'unfiltered' signal-averaged P-wave ECG (PSAECG) and compare these results with those obtained with conventional filter settings. METHODS AND RESULTS: Twenty one patients with lone PAF and 20 healthy volunteers (control group) were enrolled in the study. An orthogonal lead surface ECG was high-pass filtered at 0.8 Hz, averaged with template matching, and combined into a spatial magnitude ('unfiltered' technique). Results were compared with conventionally filtered (40-300 Hz) PSAECG. The filtered technique revealed no differences in P-wave duration between the two groups (121 +/- 12 vs 128 +/- 15 ms, control and PAF groups respectively, ns). Double-peaked P-wave spatial magnitudes (interpeak distance >30 ms) were revealed in 11 of 21 PAF patients but only in two of 18 controls (P<0.01). The nadir in the spatial magnitude was located significantly later in the PAF group (114 +/- 13 vs 103 +/- 9 ms, P<0.01). CONCLUSION: 'Unfiltered' PSAECG revealed significant differences in orthogonal P-wave morphology in patients with lone PAF, indicating the possibility of an inter-atrial conduction delay, while conventional P-wave duration analysis failed to discriminate between the two groups.}}, author = {{Platonov, Pyotr and Carlson, Jonas and Ingemansson, Max and Roijer, Anders and Hansson, A and Chireikin, L V and Olsson, Bertil}}, issn = {{1532-2092}}, keywords = {{Signal-averaged P-wave ECG; paroxysmal atrial fibrillation; inter-atrial conduction}}, language = {{eng}}, number = {{1}}, pages = {{32--41}}, publisher = {{Oxford University Press}}, series = {{Europace}}, title = {{Detection of inter-atrial conduction defects with unfiltered signal-averaged P-wave ECG in patients with lone atrial fibrillation}}, url = {{http://dx.doi.org/10.1053/eupc.1999.0072}}, doi = {{10.1053/eupc.1999.0072}}, volume = {{2}}, year = {{2000}}, }