Mine was put in because my left side of my heart was weak and I had a low ejection fraction rate.

Thanks Steve. My Cardiologist is thinking about taking me off the 12.5mg dose of Metoprolol Succinate ER to boost my heart rate. I personally don't need the medication as I have only had one incidence where my heart raced up was when I contracted Covid last year. My watch woke me up indicating heart rate during sleep averaged 100-104 when it typically is in the mid 40's. Originally placed on 25mg dose November 2019 while exercising when heart went into AFIB. After 2 months at that dosage had to get a lower dose cause my heart rate was in low 40's all the time, dizzy, just couldn't function.

mine was for Atrial fibrillation

I have been in heart failure. There are so many reasons why they put in a pacer .

Mine was bradycardia and afib guess from what they were saying was the irregular rythum and heart rate were going hand in hand. Be at a 40 and regular then a 200 and afib. Haven't had any issues with it since I got it May 2018.