Abstract:
:No studies have evaluated both the time-to-isolation (TTI) and the sequence of pulmonary vein (PV) potentials in cryoballoon ablation (CBA) for atrial fibrillation (AF). This study aimed to prospectively evaluate the acute results of pulmonary vein isolation (PVI) using a novel CBA technique-the earliest potential (EP) of PV-guided CBA-in paroxysmal AF. We pressed a balloon against the earliest PV potential site during PVI when TTI could not be achieved within 60 s (EP-guided CBA group). We compared 32 patients consecutively treated by EP-guided CBA to 32 patients treated without pressing the balloon against the EP site (conventional CBA group). The cryoapplication protocol was the same, except with regard to the pressing of the balloon. All 256 PVs (EP-guided CBA group, 128 PVs; conventional CBA group, 128 PVs) were isolated successfully. The TTI observation rate was similar in both groups. Compared with conventional CBA, EP-guided CBA was associated with a lower non-success rate of TTI ≤ 90 s (9% vs. 26%; P = 0.040) and shorter left atrial dwell time (38 ± 9 vs. 46 ± 19 min; P = 0.036), total procedure time (76 ± 15 vs. 87 ± 23 min; P = 0.043), and fluoroscopy time (23 ± 8 vs. 30 ± 11 min; P = 0.006). This novel EP-guided CBA approach may help facilitate the ablation procedure.
journal_name
Heart Vesselsjournal_title
Heart and vesselsauthors
Mizutani Y,Kanashiro M,Makino Y,Satake A,Suzuki W,Kurobe M,Mizutani K,Ichimiya H,Uchida Y,Watanabe J,Ichimiya S,Inden Y,Murohara Tdoi
10.1007/s00380-019-01471-5subject
Has Abstractpub_date
2020-02-01 00:00:00pages
232-238issue
2eissn
0910-8327issn
1615-2573pii
10.1007/s00380-019-01471-5journal_volume
35pub_type
杂志文章abstract::Coronary slow flow (CSF) is characterized by delayed opacification of coronary arteries in the absence epicardial occlusive disease. QT duration and dispersion have been reported to be longer in patients with CSF. ACE inhibitors may improve CSF through positive effects on endothelial function. The study included 32 pa...
journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
pub_type: 杂志文章
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
pub_type: 杂志文章,多中心研究
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journal_title:Heart and vessels
pub_type: 杂志文章
doi:10.1007/BF02750638
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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journal_title:Heart and vessels
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