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Symptoms and Signs – Differential Diagnosis of Torsades de Pointes
• Antiarrhythmics known to increase the QT interval (e.g., quinidine, procainamide, amiodarone, disopyramide, sotalol)
• Antiviral and antifungal agents and antibiotics
• Bradyarrhythmias
• Chloroquine, pentamidine
• Cocaine abuse
• Congenital long QT syndrome
• Histamine (H1) antagonists (e.g., astemizole, terfenadine)
• Hypokalemia
• Hypomagnesemia
• Insecticide poisoning
• Subarachnoid hemorrhage
• Tricyclic antidepressants and phenothiazines
• Antiarrhythmics known to increase the QT interval (e.g., quinidine, procainamide, amiodarone, disopyramide, sotalol)
• Antiviral and antifungal agents and antibiotics
• Bradyarrhythmias
• Chloroquine, pentamidine
• Cocaine abuse
• Congenital long QT syndrome
• Histamine (H1) antagonists (e.g., astemizole, terfenadine)
• Hypokalemia
• Hypomagnesemia
• Insecticide poisoning
• Subarachnoid hemorrhage
• Tricyclic antidepressants and phenothiazines
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