New Method for Terminating Cardiac Arrhythmias

摘要: THE ECTOPIC TACHYCARDIAS are currently treated by either vagal stimulation or drugs. The 3 most effective drugs quinidine, procainamide hydrochloride, and the digitalis glycosides. When ectopic mechanism drives ventricles at rates above 160 per minute, cardiac output falls coronary blood flow is compromised. This likely to occur with ventricular tachycardia which constitutes a serious emergency requiring immediate treatment. Frequently, however, arrhythmia cannot be terminated promptly. Reversion generally involves time-consuming biologic titration. Since it impossible in any one patient predict toxic dose, small increments of antiarrhythmic given frequent intervals until therapeutic end point reached. interval between doses determined gravity patient's illness as well rapidity action particular agent. It may thus take minutes, days, even weeks