Final answer:
The treatment of choice for paroxysmal atrial tachycardia can involve medications like beta blockers and procainamide, with procedures such as cardioversion or defibrillation for severe symptoms and artificial pacemakers for chronic conditions.
Step-by-step explanation:
The treatment of choice for paroxysmal atrial tachycardia often includes medication management and can escalate to medical procedures depending on severity. Antiarrhythmic agents such as beta blockers or procainamide are usually administered to control the heart rate and attempt to restore normal sinus rhythm. More severe symptoms may necessitate urgent treatments such as cardioversion or defibrillation, which involve a controlled electric shock to the heart. For chronic arrhythmias, an artificial pacemaker may be implanted to manage the heart rhythm more permanently, particularly when the heart maintains a junctional rhythm and ordinary medications are insufficient.