Conversation so far:
pacemaker is related to which part of body
A pacemaker is a small device that's placed in the chest or abdomen.
what is the function of a pacemaker device
A pacemaker is a device placed in the chest or abdomen to help control abnormal heart rhythms, using electrical pulses to prompt the heart to beat at a normal rate.
What happens when then heart rhythms are abnormal
During an arrhythmia, the heart may not be able to pump enough blood to the body.

Question: What are the consequences
Self-contained rewrite: What are the consequences of Arrhythmia