Changes in f-wave characteristics during cryoballoon catheter ablation
(2018) In Physiological Measurement 39(10).- Abstract
OBJECTIVE: Changes in ECG-derived parameters are studied in atrial fibrillation (AF) patients undergoing cryoballoon catheter ablation.
APPROACH: Parameters characterizing f-wave frequency, morphology by phase dispersion, and amplitude are estimated using a model-based statistical approach. These parameters are studied before, during, and after ablation, as well as for AF type (paroxysmal/persistent). Seventy-seven (49/28 paroxysmal/persistent) AF patients undergoing de novo catheter ablation are included in the study, out of which 31 (16/15 paroxysmal/persistent) were in AF during the whole procedure. A signal quality index (SQI) is used to identify analyzable segments.
MAIN RESULTS: f-wave frequency decreased significantly... (More)
OBJECTIVE: Changes in ECG-derived parameters are studied in atrial fibrillation (AF) patients undergoing cryoballoon catheter ablation.
APPROACH: Parameters characterizing f-wave frequency, morphology by phase dispersion, and amplitude are estimated using a model-based statistical approach. These parameters are studied before, during, and after ablation, as well as for AF type (paroxysmal/persistent). Seventy-seven (49/28 paroxysmal/persistent) AF patients undergoing de novo catheter ablation are included in the study, out of which 31 (16/15 paroxysmal/persistent) were in AF during the whole procedure. A signal quality index (SQI) is used to identify analyzable segments.
MAIN RESULTS: f-wave frequency decreased significantly during ablation (p = 0.001), in particular after ablation of the inferior right pulmonary vein (p < 0.05). Frequency and phase dispersion differed significantly between paroxysmal and persistent AF (p = 0.001 and p < 0.05, respectively).
SIGNIFICANCE: This study demonstrates that a decrease in f-wave frequency can be distinguished during catheter ablation. The use of an SQI ensures reliable analysis and produces results significantly different from those obtained without an SQI.
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- author
- Henriksson, Mikael LU ; García-Alberola, Arcadi ; Goya, Rebeca ; Vadillo, Alba ; Melgarejo-Meseguer, Francisco Manuel ; Sandberg, Frida LU and Sörnmo, Leif LU
- organization
- publishing date
- 2018-10-04
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physiological Measurement
- volume
- 39
- issue
- 10
- pages
- 1 pages
- publisher
- IOP Publishing
- external identifiers
-
- scopus:85054442797
- pmid:30183676
- ISSN
- 0967-3334
- DOI
- 10.1088/1361-6579/aadf1d
- project
- Modelling and Quality Assessment of Atrial Fibrillatory Waves
- language
- English
- LU publication?
- yes
- id
- 3a5903f2-7769-4be9-97e9-fe43848309e0
- date added to LUP
- 2018-10-31 12:14:21
- date last changed
- 2024-04-15 15:33:36
@article{3a5903f2-7769-4be9-97e9-fe43848309e0, abstract = {{<p>OBJECTIVE: Changes in ECG-derived parameters are studied in atrial fibrillation (AF) patients undergoing cryoballoon catheter ablation.</p><p>APPROACH: Parameters characterizing f-wave frequency, morphology by phase dispersion, and amplitude are estimated using a model-based statistical approach. These parameters are studied before, during, and after ablation, as well as for AF type (paroxysmal/persistent). Seventy-seven (49/28 paroxysmal/persistent) AF patients undergoing de novo catheter ablation are included in the study, out of which 31 (16/15 paroxysmal/persistent) were in AF during the whole procedure. A signal quality index (SQI) is used to identify analyzable segments.</p><p>MAIN RESULTS: f-wave frequency decreased significantly during ablation (p = 0.001), in particular after ablation of the inferior right pulmonary vein (p < 0.05). Frequency and phase dispersion differed significantly between paroxysmal and persistent AF (p = 0.001 and p < 0.05, respectively).</p><p>SIGNIFICANCE: This study demonstrates that a decrease in f-wave frequency can be distinguished during catheter ablation. The use of an SQI ensures reliable analysis and produces results significantly different from those obtained without an SQI.</p>}}, author = {{Henriksson, Mikael and García-Alberola, Arcadi and Goya, Rebeca and Vadillo, Alba and Melgarejo-Meseguer, Francisco Manuel and Sandberg, Frida and Sörnmo, Leif}}, issn = {{0967-3334}}, language = {{eng}}, month = {{10}}, number = {{10}}, publisher = {{IOP Publishing}}, series = {{Physiological Measurement}}, title = {{Changes in f-wave characteristics during cryoballoon catheter ablation}}, url = {{http://dx.doi.org/10.1088/1361-6579/aadf1d}}, doi = {{10.1088/1361-6579/aadf1d}}, volume = {{39}}, year = {{2018}}, }