ArticleHeart rhythm O22026
Safety and efficacy of ultralow-dose fluoroscopy in left atrial appendage occlusion.
Article in Heart rhythm O2, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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12 authors.
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Abstract
Background: Minimizing radiation exposure has become a growing priority in electrophysiology, with increasing adoption of zero- or minimal-fluoroscopy techniques. Little is known about left atrial appendage occlusion (LAAO) using ultralow-dose fluoroscopy. Objective: This study aimed to assess the safety and efficacy of an ultralow-dose fluoroscopy strategy for LAAO. Methods: In a prospectively maintained registry at our center, 46 patients underwent LAAO with ultralow-dose fluoroscopy using Watchman FLX devices (Boston Scientific, Minneapolis, MN). The ultralow-dose strategy was a priori planned for these patients with the goal of minimizing radiation exposure (total radiation exposure <10 mGy), while relying on transesophageal echocardiography guidance for device placement. The ultralow-dose fluoroscopy group was compared using propensity score matching with patients treated with standard fluoroscopy guidance (1:3 matching; n = 46 vs 138). Baseline characteristics, procedural metrics, and clinical outcomes were compared between groups. Results: Procedural success was 100% in both groups, with significantly shorter procedural duration in the ultralow-dose group (42 vs 60 minutes; Conclusion: Ultralow-dose fluoroscopy is a safe and effective, radiation-sparing strategy for LAAO.
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