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Published on: July 5, 2021
Hyperkalemia Presenting as Sinus Bradycardia, Junctional Rhythm and Atrial Bigeminy
Balaram Krishna J Hanumanthu1, Yashasvi Chugh2, Michael Grushko3
1Cardiology, Mount Sinai Beth Israel Medical Center, New York, USA.
Abstract:
The spectrum of electrocardiographic changes seen with hyperkalemia is known to progress gradually with increasing serum levels of potassium. Initial changes are limited to peaked T waves and QT shortening, which subsequently progress to prolonged QRS/QT intervals, and finally sinus arrest, sinus bradycardia and asystole. We report a unique case of severe sinus bradycardia with atrial bigeminy and junctional rhythm in the setting of moderate hyperkalemia, a rarely reported electrocardiographic finding.
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