Why the study?
Metformin demonstrates broad cardiovascular benefits beyond glucose lowering, but its roles in cardiac arrhythmias remain unclear.
Design
Review
Authors
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Metformin-associated AF reduction in diabetes is hypothesis-generating; prospective RCTs needed before clinical consideration.
This review highlights the potential of metformin to reduce atrial fibrillation incidence through AMPK-mediated structural and electrical remodeling, while noting a lack of clinical benefit for ventricular arrhythmias.
Nantsupawat et al. (2020) studied this question.
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