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  "documentTitle": "AtriCure, Inc. (ATRC)",
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  "notes": "The slide uses clinical study data to challenge the validity of the Convergent trial's control group by showing superior outcomes for modern catheter-based PW ablation.",
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      "text": "Of the group that underwent PVI and PW ablation, 65% were free of AF/AT/AFL at 12 months compared to only 20% of the group that underwent PVI alone.",
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      "text": "The most recent, largest, and significant study of PW ablation via catheter in patients with persistent AF was conducted between October 2014 and February 2017. In 390 consecutive patients in multiple centers, the first 222 received a PVI and PW ablation, while the next 168 received only a PVI. At 12 months, 70% of the group undergoing a single-procedure PVI and PW ablation were free from all atrial arrhythmias compared to 42% in the",
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      "text": "In a prospective (but admittedly non-randomized) study published in January of 2016, Bai and colleagues split 52 consecutive patients with persistent AF into a group of 20 that underwent a PVI alone, and a group of 32 that had an additional ablation of the posterior wall. Of the group that underwent PVI and PW ablation, 65% were free of AF/AT/AFL at 12 months compared to only 20% of the group that underwent PVI alone.",
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      "text": "A prospective randomized study conducted in South Korea between 2011 and 2012 compared two groups of 60 persistent AF patients undergoing catheter ablation. 83% (50/60) of the box lesion group were free from AF at 12 months compared to only 63% (38/60) of the PVI-only group.",
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      "text": "which creates a lesion along the roof of the posterior wall connecting the pulmonary veins on each side - see the diagram on page 12), whereas the Convergent arm underwent a full ablation of the posterior wall.",
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      "text": "Bai, R, et al, Proven isolation of the pulmonary vein antrum with or without left atrial posterior wall isolation in patients with persistent atrial fibrillation — Footnote 10; Kim, JS, et al, Does isolation of the left atrial posterior wall improve clinical outcomes after radiofrequency catheter ablation for persistent atrial fibrillation? A prospective randomized clinical trial — Footnote 11",
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      "text": "10 Bai, R, et al, Proven isolation of the pulmonary vein antrum with or without left atrial posterior wall isolation in patients with persistent atrial fibrillation\n11 Kim, JS, et al, Does isolation of the left atrial posterior wall improve clinical outcomes after radiofrequency catheter ablation for persistent atrial fibrillation? A prospective randomized clinical trial",
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