Final answer:
Putting in a pacemaker can lead to right-sided heart failure (RHF).
Step-by-step explanation:
Putting in a pacemaker can lead to right-sided heart failure (RHF). A pacemaker is a medical device that helps regulate the heartbeat by sending electrical impulses to the heart muscle. However, in some cases, the placement of a pacemaker can disrupt the natural flow of blood within the heart, leading to RHF. RHF occurs when the right side of the heart is unable to pump blood effectively, resulting in fluid buildup in the body.