Malignant ventricular arrhythmias due to Aconitum napellus seeds

A 28-year-old man was admitted to the Emergency Department for syncope after several hours of violent vomiting and diarrhea. A few minutes after arrival, he complained of palpitations followed by a sudden loss of consciousness. An ECG showed a polymorphic ventricular tachycardia degenerating into ventricular fibrillation (Figure 1⇓). Because of recurrent major ventricular arrhythmias, resuscitation was necessary for 1 hour. The patient was eventually admitted to the Coronary Care Unit. Physical examination, ECG (Figure 2⇓), chest x-ray, …