Result: Successfulness - recurrence: (patients ≥ 65 ages 100% - 0%), (patients < 65 years 99.4% - 06%) p=0.7; complication of third degree AV block: (patients ≥ 65 ages 0%), (patient < 65 ages 06%), p = 0.7; severe complications of 2 groups are 0%; mild complication (patient ≥65 ages 1.38%), (patients < 65 ages 2.38%), p =NS.