Heart block and immunization safety

Patient: My 9 weeks old has complere heart block, she has her 1st immunisation next week,and later on same day she will have ecg for 24h – doctors will decide wheter she needs pacemker now or not based on ecg results. will immunisaTION AFFECT ECG? THANK YIU

Doctor: Routine immunization needs to be carried out as per schedule and may not affect her heart health or the ECG readings, as far as your baby is doing fine with no extra stress on her heart.