Arrythmias ========== Antiarrhythmic Drugs Arrhythmias, Potentially- Lethal Atrial Fibrillation Bradycardia/Heart Blocks Carotid Sinus Massage Digitalis Toxicity Electrocardiograms Heart Blocks/Bradycardia Long QT Syndrome MAT (Multifocal Atrial Tachycardia) Rate-Related EKG changes: ST and T-wave changes can persist for hours or even days after the tachycardia has terminated. This is called the post- tachycardia syndrome. [Marriott, Practical Electrocardiography 8th ed. p 176] Sick Sinus Syndrome Supraventricular Tachycardia Toursades de Pointes Wolf-Parkinson-White Wide-Complex Tachycardia