Having 2nd ablation next week - r/t tachycardia- doc said might end up with a pacemaker. How will a pacemaker keep my heart rate from going too high (highest is 237)? I thought I would need a ICD with the pacemaker but doc said no?

Tachycardia. A pacemaker is usually not used to treat supraventricular tachycardia but is placed to allow certain patients to take antiarrythymic medication that may slow the heart rate too much. Such patients go from too fast to too slow. The pacemaker protects against the too slow rates while the antiarrythmic prevents the paroxysmal tachycardia.