Key result
A 64-year-old male with a first episode of atrial fibrillation was managed by direct current cardioversion and subsequently evaluated for ECG changes likely due to a prescribed drug.
Case Report (n=1)
An ECG challenge case highlighting worsening conduction delay in a patient with hypertrophic cardiomyopathy following treatment for atrial fibrillation.
May prompt ECG pattern recognition in new-onset AF; leaves open its prevalence and clinical implications.
ECG CHALLENGEWe present the case of a 64-year-old male who presented to the emergency room because of recent onset palpitations.He was diagnosed with a first episode of atrial fibrillation and was managed at the emergency room by direct current cardioversion.The patient's past medical record was unremarkable, and no relevant findings were discovered during the physical examination or laboratory tests.The baseline ECG is shown in Figure 1.On discharge the patient was referred for outpatient cardiology evaluation and was eventually seen 2 months later.The ECG at the outpatient clinic is shown in Figure 2.Which drug was most likely prescribed to the patient to account for the differences between the first and second ECGs?Please turn the page to read the diagnosis.
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García-Granja et al. (2017) conducted a case report in Atrial fibrillation and hypertrophic cardiomyopathy (n=1). Direct current cardioversion and unknown pharmacological therapy was evaluated. A 64-year-old male with a first episode of atrial fibrillation was managed by direct current cardioversion and subsequently evaluated for ECG changes likely due to a prescribed drug.
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