CARDIAC-ARREST AFTER RECEIVING A COMBINATION OF INTRAVENOUS DRUGS FORTREATING ORTHODROMIC TACHYCARDIA IN WOLFF-PARKINSON-WHITE-SYNDROME

Antiarrhythmic drugs administered intravenously run the risk of produc ing a hemodynamic collapse even when used by expert and well trained h ands. The arrhythmias in the focal point of a preexcitation syndrome c onstitute a very special situation in which extreme caution must be us ed when using intravenous drugs, because the conduction through acceso ry channels can vary, depending on multiple factors. We describe a cas e of a patient with an accessory atrioventricular pathway and orthodro mic tachycardia who developed cardiac arrest by wide QRS tachycardia a fter receiving intravenous amiodarone.