A Case of the Toxicity of Pilsicainide Hydrochloride With Comparison of the Serial Serum Pilsicainide Levels and Electrocardiographic Findings

We treated an 88-year-old man with aortic valvular stenosis/insufficiency and paroxysmal atrial fibrillation, who developed ventricular tachycardia due to pilsicainide toxicity. He was treated at the outpatient clinic of his local hospital, and was administered pilsicainide (100 mg/day) for atrial fibrillation. The electrocardiographic findings on admission to our hospital indicated wide QRS with frequent episodes of ventricular tachycardia. We...