ArticleJournal of arrhythmia2026
Hemoglobin Levels as a Marker of Arrhythmia Recurrence After Atrial Fibrillation Ablation.
Article in Journal of arrhythmia, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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11 authors.
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Abstract
Background: Low hemoglobin (Hb) is associated with hemodynamic stress and adverse cardiac remodeling. However, its clinical significance for arrhythmia recurrence after atrial fibrillation (AF) ablation remains unclear. Methods: We retrospectively studied 2202 patients undergoing AF ablation between 2014 and 2024 (radiofrequency ablation [RFA]: Results: In the RFA cohort, low Hb was associated with a higher risk of arrhythmia recurrence after the index procedure (adjusted HR 1.33, 95% CI 1.07-1.65) and after multiple procedures (adjusted HR 1.57, 95% CI 1.22-2.02). No significant association was observed in the CBA cohort (adjusted HR 1.03, 95% CI 0.68-1.54). The interaction between Hb level and ablation modality was not statistically significant ( Conclusions: Lower Hb levels were associated with an increased risk of arrhythmia recurrence. The association differed according to AF type, suggesting that low Hb may reflect an adverse atrial substrate rather than a procedural effect.
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