thank you so much for your response it brings some comfort to us..
:)
Yes a pacemaker can be removed.
I can only guess: the doctor believes there is a (small?) chance the heart will slow down too much. The pacemaker will record, I believe, any action it takes to maintain a minimum HR. If, after some period of time, the pacemaker is never activated it may be possible to conclude the pacemaker is not needed, i.e., remove it.
Better safe than sorry...