Subclinical Dysfunction of Left Atrial Compliance after Cryoballoon versus Radiofrequency Ablation for Paroxysmal Atrial Fibrillation
It has been suggested that cryoballoon (CB) ablation for paroxysmal atrial fibrillation (PAF) may lead to more extensive left atrial (LA) injury than radiofrequency (RF) ablation; however, results are conflicting. We sought to address this issue using modern echocardiographic techniques estimating t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Journal of Clinical Medicine |
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| Online Access: | https://www.mdpi.com/2077-0383/12/15/4974 |
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| author | Ewa Pilichowska-Paszkiet Agnieszka Sikorska Ilona Kowalik Krzysztof Smarż Małgorzata Sikora-Frąc Jakub Baran Roman Piotrowski Tomasz Kryński Piotr Kułakowski Beata Zaborska |
| author_facet | Ewa Pilichowska-Paszkiet Agnieszka Sikorska Ilona Kowalik Krzysztof Smarż Małgorzata Sikora-Frąc Jakub Baran Roman Piotrowski Tomasz Kryński Piotr Kułakowski Beata Zaborska |
| author_sort | Ewa Pilichowska-Paszkiet |
| collection | DOAJ |
| description | It has been suggested that cryoballoon (CB) ablation for paroxysmal atrial fibrillation (PAF) may lead to more extensive left atrial (LA) injury than radiofrequency (RF) ablation; however, results are conflicting. We sought to address this issue using modern echocardiographic techniques estimating the LA function after successful CB and RF ablation for PAF. A total of 90 patients (66% males, mean age 57 ± 10 years) successfully treated (no AF recurrences confirmed in serial 4–7 day ECG Holter monitoring) with RF (51%) or CB (49%) ablation for PAF were retrospectively studied. Echocardiography with speckle tracking (STE) was performed before and 12 months after the procedure. The peak longitudinal LA strain (LAS) and strain rate (LASR) during the reservoir (r), conduit (cd), and contraction (ct) phases were measured in sinus rhythm. Analysis of covariance was applied to compare changes in the echocardiographic parameters over time with the baseline measurements as covariance and the type of ablation as the factor. The parallelism of the slopes of the covariance was tested. The LA diameter decreased (38.3 ± 4.1 mm vs. 36.8 ± 3.6 mm, <i>p</i> < 0.001) in the whole study group at 12 months after ablation. The LASRr and LASRcd increased (1.1 ± 0.3 s<sup>−</sup>¹ vs. 1.3 ± 0.3 s<sup>−</sup>¹, <i>p</i> < 0.001 and 1.1 ± 0.3 s<sup>−</sup>¹ vs. 1.2 ± 0.3 s<sup>−</sup>¹, <i>p</i> < 0.001, respectively) whereas other LA strain parameters remained unchanged in the whole study group at 12 months after ablation. In the analysis of LA function at 12 months after the procedure regarding the mode of ablation, the worsening of parameters reflecting LA compliance was observed in patients with better pre-served baseline values in the CB ablation subgroup. For baseline LAScd >28%, the difference ΔCB − ΔRF was −7.6 (11.7; −3.4), <i>p</i> < 0.001, and for baseline LAScd >16%, ΔCB − ΔRF was −1.8 (−3.2; −0.4), <i>p</i> = 0.014. The traditional Doppler-derived parameter e′ showed the same trend—for baseline e′ ≥12 cm/s, ΔCB − ΔRF was −1.7 (−2.8; −0.6), <i>p</i> = 0.003. We conclude that worsening of parameters reflecting LA compliance was observed 12 months after CB ablation compared to RF ablation for PAF in patients who underwent a successful procedure and had better-preserved baseline LA function. This might suggest subclinical dysfunction of LA after the CB ablation procedure. The clinical significance of these findings warrants further investigations. |
| first_indexed | 2024-03-11T00:24:09Z |
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| institution | Directory Open Access Journal |
| issn | 2077-0383 |
| language | English |
| last_indexed | 2024-03-11T00:24:09Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Clinical Medicine |
| spelling | doaj.art-293f1fc3e359463eb71bfdfae38d85b42023-11-18T23:07:41ZengMDPI AGJournal of Clinical Medicine2077-03832023-07-011215497410.3390/jcm12154974Subclinical Dysfunction of Left Atrial Compliance after Cryoballoon versus Radiofrequency Ablation for Paroxysmal Atrial FibrillationEwa Pilichowska-Paszkiet0Agnieszka Sikorska1Ilona Kowalik2Krzysztof Smarż3Małgorzata Sikora-Frąc4Jakub Baran5Roman Piotrowski6Tomasz Kryński7Piotr Kułakowski8Beata Zaborska9Department of Cardiology, Centre of Postgraduate Medical Education, Grochowski Hospital, 04-073 Warsaw, PolandDepartment of Cardiology, Centre of Postgraduate Medical Education, Grochowski Hospital, 04-073 Warsaw, PolandClinical Research Support Center, National Institute of Cardiology, 04-073 Warsaw, PolandDepartment of Cardiology, Centre of Postgraduate Medical Education, Grochowski Hospital, 04-073 Warsaw, PolandDepartment of Cardiology, Centre of Postgraduate Medical Education, Grochowski Hospital, 04-073 Warsaw, PolandDepartment of Cardiology, Centre of Postgraduate Medical Education, Grochowski Hospital, 04-073 Warsaw, PolandDepartment of Cardiology, Centre of Postgraduate Medical Education, Grochowski Hospital, 04-073 Warsaw, PolandDepartment of Cardiology, Centre of Postgraduate Medical Education, Grochowski Hospital, 04-073 Warsaw, PolandDepartment of Cardiology, Centre of Postgraduate Medical Education, Grochowski Hospital, 04-073 Warsaw, PolandDepartment of Cardiology, Centre of Postgraduate Medical Education, Grochowski Hospital, 04-073 Warsaw, PolandIt has been suggested that cryoballoon (CB) ablation for paroxysmal atrial fibrillation (PAF) may lead to more extensive left atrial (LA) injury than radiofrequency (RF) ablation; however, results are conflicting. We sought to address this issue using modern echocardiographic techniques estimating the LA function after successful CB and RF ablation for PAF. A total of 90 patients (66% males, mean age 57 ± 10 years) successfully treated (no AF recurrences confirmed in serial 4–7 day ECG Holter monitoring) with RF (51%) or CB (49%) ablation for PAF were retrospectively studied. Echocardiography with speckle tracking (STE) was performed before and 12 months after the procedure. The peak longitudinal LA strain (LAS) and strain rate (LASR) during the reservoir (r), conduit (cd), and contraction (ct) phases were measured in sinus rhythm. Analysis of covariance was applied to compare changes in the echocardiographic parameters over time with the baseline measurements as covariance and the type of ablation as the factor. The parallelism of the slopes of the covariance was tested. The LA diameter decreased (38.3 ± 4.1 mm vs. 36.8 ± 3.6 mm, <i>p</i> < 0.001) in the whole study group at 12 months after ablation. The LASRr and LASRcd increased (1.1 ± 0.3 s<sup>−</sup>¹ vs. 1.3 ± 0.3 s<sup>−</sup>¹, <i>p</i> < 0.001 and 1.1 ± 0.3 s<sup>−</sup>¹ vs. 1.2 ± 0.3 s<sup>−</sup>¹, <i>p</i> < 0.001, respectively) whereas other LA strain parameters remained unchanged in the whole study group at 12 months after ablation. In the analysis of LA function at 12 months after the procedure regarding the mode of ablation, the worsening of parameters reflecting LA compliance was observed in patients with better pre-served baseline values in the CB ablation subgroup. For baseline LAScd >28%, the difference ΔCB − ΔRF was −7.6 (11.7; −3.4), <i>p</i> < 0.001, and for baseline LAScd >16%, ΔCB − ΔRF was −1.8 (−3.2; −0.4), <i>p</i> = 0.014. The traditional Doppler-derived parameter e′ showed the same trend—for baseline e′ ≥12 cm/s, ΔCB − ΔRF was −1.7 (−2.8; −0.6), <i>p</i> = 0.003. We conclude that worsening of parameters reflecting LA compliance was observed 12 months after CB ablation compared to RF ablation for PAF in patients who underwent a successful procedure and had better-preserved baseline LA function. This might suggest subclinical dysfunction of LA after the CB ablation procedure. The clinical significance of these findings warrants further investigations.https://www.mdpi.com/2077-0383/12/15/4974left atrial functionstraincryoablationatrial fibrillation |
| spellingShingle | Ewa Pilichowska-Paszkiet Agnieszka Sikorska Ilona Kowalik Krzysztof Smarż Małgorzata Sikora-Frąc Jakub Baran Roman Piotrowski Tomasz Kryński Piotr Kułakowski Beata Zaborska Subclinical Dysfunction of Left Atrial Compliance after Cryoballoon versus Radiofrequency Ablation for Paroxysmal Atrial Fibrillation Journal of Clinical Medicine left atrial function strain cryoablation atrial fibrillation |
| title | Subclinical Dysfunction of Left Atrial Compliance after Cryoballoon versus Radiofrequency Ablation for Paroxysmal Atrial Fibrillation |
| title_full | Subclinical Dysfunction of Left Atrial Compliance after Cryoballoon versus Radiofrequency Ablation for Paroxysmal Atrial Fibrillation |
| title_fullStr | Subclinical Dysfunction of Left Atrial Compliance after Cryoballoon versus Radiofrequency Ablation for Paroxysmal Atrial Fibrillation |
| title_full_unstemmed | Subclinical Dysfunction of Left Atrial Compliance after Cryoballoon versus Radiofrequency Ablation for Paroxysmal Atrial Fibrillation |
| title_short | Subclinical Dysfunction of Left Atrial Compliance after Cryoballoon versus Radiofrequency Ablation for Paroxysmal Atrial Fibrillation |
| title_sort | subclinical dysfunction of left atrial compliance after cryoballoon versus radiofrequency ablation for paroxysmal atrial fibrillation |
| topic | left atrial function strain cryoablation atrial fibrillation |
| url | https://www.mdpi.com/2077-0383/12/15/4974 |
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