Deterioration of ventricular tachycardia to ventricular fibrillation after rapid intravenous administration of magnesium sulfate.
نویسندگان
چکیده
We report the case of a patient who had development of ventricular fibrillation following rapid intravenous administration of magnesium sulfate (2 g over 5 s) for treatment of sustained monomorphic ventricular tachycardia. Initial slowing of the tachycardia was followed by gradual widening of QRS complexes and electrical alternans, leading to ventricular fibrillation within 3 min of magnesium administration.
منابع مشابه
Nonsustained polymorphous ventricular tachycardia during amiodarone therapy for atrial fibrillation complicating cardiomyopathy. Management with intravenous magnesium sulfate.
A case is presented in which amiodarone was administered to suppress paroxysmal atrial fibrillation in a patient with an idiopathic cardiomyopathy. Eleven days after initiation of therapy with amiodarone, the patient experienced syncope and was noted to have recurrent episodes of polymorphous ventricular tachycardia. The patient was hospitalized and treated with a bolus as well as continuous in...
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Intravenous magnesium has been used to prevent and treat many different types of cardiac arrhythmia. It has diverse electrophysiological actions on the conduction system of the heart; including prolonging sinus node recovery time, and reducing automaticity, atrioventricular nodal conduction, antegrade and retrograde conduction over an accessory pathway, and His-ventricular conduction. Intraveno...
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BACKGROUND There is a high incidence of ventricular arrhythmia and sudden death in patients with heart failure. Unfortunately, currently available antiarrhythmic agents have only limited efficacy and may result in proarrhythmia and hemodynamic deterioration in these patients. METHODS AND RESULTS We studied the acute effect of intravenous magnesium chloride on the frequency and severity of ven...
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ورودعنوان ژورنال:
- Chest
دوره 101 5 شماره
صفحات -
تاریخ انتشار 1992