Atrial Flutter Secondary to Hypokalemia

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Abstract
Electrophysiologic studies support significant hypokalemia as a cause of atrial flutter in a patient without manifest heart disease. Atrial flutter, reproducibly initiated and terminated by rapid atrial pacing during hypokalemia, was not inducible after potassium correction. In an individual with existing atrial conduction disease, hypokalemia may generate both non‐uniform atrial refractoriness and atrial premature beats, and it may facilitate the development of atrial flutter as a re‐entrant arrhythmia.