your input on living with pacemaker will be greatly appreciated

my father is 82 years old. his heart beat is very slow, sometimes below 40. long time ago, he was advised to have pacemaker, he refused. he lives on herbal medicine, jinsheng and qigong. This Monday he fainted and fell, but immediately woke up, my mother was with him.

He's now in hospital. Should he go through the surgery and put in the pacemaker?

Your input & suggestions will be greatly appreciated.