Bidirectional ventricular tachycardia following ricin intoxication: a case report

To the best of our knowledge, this is the first reported case of bidirectional ventricular tachycardia following ricin intoxication. A likely mechanism involves toxin-induced myocardial injury resulting in increased automaticity or triggered activity. Re-entry appears unlikely due to the absence of structural heart disease and the failure of electrical cardioversion. This case underscores the importance of recognizing rare toxin-induced arrhythmias in the differential diagnosis of wide-complex tachycardias, highlighting a need for heightened awareness among cardiologists in the context of acute poisoning.