2020
DOI: 10.1016/j.hrthm.2020.05.029
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Catheter ablation of atrial fibrillation using ablation index–guided high power (50 W) for pulmonary vein isolation with or without esophageal temperature probe (the AI-HP ESO II)

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Cited by 60 publications
(83 citation statements)
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“…With increased sample size, the present study continued to show the high efficiency of the AI‐HP PVI approach, exhibiting a high rate of procedural success (100%) and first‐pass PVI (96.7%), which was achieved with a very short RF application time (11 min) and fast procedural time (skin‐to‐skin 55 min). Of note, the mean RF application duration at the LA posterior wall was only around 3 min, and the postprocedural esophageal endoscopy revealed a low incidence (2.5%) of the esophageal lesion, as compared to conventional or lower power ablation 19–22 . It should be recalled that in our pilot study 15 four steam‐pops were noted most likely because of a strong contact force (43–57 g), since then the contact force has been carefully optimized before RF delivery and no audible steam‐pop has occurred thereafter.…”
Section: Discussionmentioning
confidence: 73%
“…With increased sample size, the present study continued to show the high efficiency of the AI‐HP PVI approach, exhibiting a high rate of procedural success (100%) and first‐pass PVI (96.7%), which was achieved with a very short RF application time (11 min) and fast procedural time (skin‐to‐skin 55 min). Of note, the mean RF application duration at the LA posterior wall was only around 3 min, and the postprocedural esophageal endoscopy revealed a low incidence (2.5%) of the esophageal lesion, as compared to conventional or lower power ablation 19–22 . It should be recalled that in our pilot study 15 four steam‐pops were noted most likely because of a strong contact force (43–57 g), since then the contact force has been carefully optimized before RF delivery and no audible steam‐pop has occurred thereafter.…”
Section: Discussionmentioning
confidence: 73%
“…The high‐power ablation strategy has demonstrated in animal models 15 to create lesions that are similar in volume, but broader and less deep compared with standard power and duration because high‐power heating causes immediate and irreversible tissue damage to the full atrial wall thickness, and short‐duration ablation reduces the conductive phase which may minimize damage to the surrounding tissue 15 . In previous studies, HPSD ablation has been demonstrated to be as effective as conventional power for PVI, notably with a higher rate of first‐round PVI, lower procedural and radiofrequency duration, and overall low procedural complication rate 1–5,16–19 . Besides PVI, HPSD has been recently described for posterior wall isolation 20 and cavotricuspid isthmus (CTI) ablation 21 …”
Section: Discussionmentioning
confidence: 99%
“…Nonetheless, if the use of standard temperature probes with thermocouples could have reduced the incidence of EDEL in this specific setting using 50 W ablation power and a relatively short ablation time in conjunction with a specialized ablation catheter, remains unanswered. Recently, Chen et al 17 published results of a prospective non‐randomized study comparing 60 patients undergoing 50 W high‐power short duration ablation with (cutoff luminal temperature > 39°C) and 60 patients without intraluminal esophageal temperature measurement resulting in a comparably low incidence of EDEL. Interestingly, in this study a target AI value of 400 at the posterior wall was chosen compared with a target AI of 350 in our study.…”
Section: Discussionmentioning
confidence: 99%