Subclinical Tachyarrhythmias Tied to Increased Risk of Stroke

Subclinical atrial tachyarrhythmias, which occur in approximately 10 percent of patients in the first three months after pacemaker or defibrillator implantation, are associated with an increased risk of clinical atrial fibrillation, stroke, and systemic embolism, according to a study published in the Jan. 12 issue of the New England Journal of Medicine.
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