Letter by Jin-shan and Xue-bin Regarding Article, “Worsening Conduction Delay in Hypertrophic Cardiomyopathy: What Drug Is Responsible?”
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To the Editor:
We read with great interest the case presented by García-Granja and colleagues1 about worsening conduction delay in hypertrophic cardiomyopathy when taking propafenone for atrial fibrillation. We have 3 questions about this interesting case. First, baseline ECG shows first atrioventricular block …