Abstract

A 63-year-old man undergoing treatment for Parkinson's disease and with no history of cardiac disease showed a newly emergent arrhythmia during a follow-up visit. The 12-lead ECG suggested atrial flutter with a cycle length of 180ms (330 cycles/min or 5.5Hz) pattern in all the leads. With an intrinsic ventricular rate of 86bpm, the initial machine-based assessment was atrial flutter with 4:1 AV conduction. Multiple ECGs were recorded and a closer scrutiny of the serially recorded digital ECG waveforms manually helped in ruling out the arrhythmia and diagnosing it as a Parkinson's tremor-induced artifact.

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