| Autor: |
Takayuki Sekihara, Shinsuke Miyazaki, Daisetsu Aoyama, Moeko Nagao, Toshihiko Tsuji, Shota Kakehashi, Moe Mukai, Tomoya Eguchi, Kanae Hasegawa, Hiroyasu Uzui, Hiroshi Tada |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing. 65(1) |
| ISSN: |
1572-8595 |
| Popis: |
An acute cryothermal ablation lesion contains both reversible and irreversible elements. However, differences in lesions created with cryoballoon pulmonary vein isolation (PVI) between the acute and chronic phases have not been fully elucidated.We retrospectively analyzed 23 consecutive patients with atrial fibrillation who underwent cryoballoon PVI during the initial procedure followed by a second ablation procedure. In all patients, cryoballoon PVI lesions were evaluated with high-resolution voltage mapping just after PVI (acute phase) and during the second session (chronic phase). We compared the area and width of the non-isolated left atrial posterior wall (NI-LAPW) with voltage ≥ 0.5 mV during both sessions.PVI was successfully achieved in all patients. Cryoballoon PVI lesions were re-evaluated at 11 [2-17] months post-procedure. During the chronic phase, NI-LAPW width became significantly larger at the level of the roof (change, 5.8 ± 5.5 mm; p 0.001) and at the level of the carina (change, 3.3 ± 7.0 mm; p 0.05), and NI-LAPW area became significantly larger (change, 1.5 ± 1.9 cmAcute cryoballoon PVI lesions significantly regressed during the chronic phase. PV reconnections and the isolation area should be carefully re-evaluated during the second procedure. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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