Heart disease is among the leading causes of deaths each year. However, many people with heart problems are increasing their longevity with pacemakers. A pacemaker’s main purpose is to keep the heart from beating too slowly thereby preventing the problems associated with slow heart rhythms (passing out, congestive heart failure, and death). Pacemakers are necessary because, while there are many medications that prevent the heart from going too fast, there are only a handful that make the heart beat faster. Medications that speed the heart rate are poorly tolerated and often associated with serious side effects. Pacemakers have become a reliable means of helping people live longer and improve …show more content…
3. When the problem with a slow rate occurs only occasionally and for relatively brief periods of time, a single lead in the ventricle may be all that is utilized to provide brief help at those times.
A dual-chamber pacemaker has one lead in the right atrium and one in the right ventricle. This pacemaker keeps the upper and lower heart chambers contracting in their proper sequence.
This style is the most common pacemaker used today. A rate-responsive pacemaker is needed when a heart cannot appropriately increase its rate according to a person’s needs. This type of pacemaker varies its rate depending upon a person’s level of activity, respiration, or other factors. Rate-responsive pacing can be a part of single-chamber and dual-chamber pacing.
Normal heart rhythms slow down or speed up many times during the day. The heart beats slower while resting or sleeping. Exercise or emotional excitement makes the heart beat faster because the body requires a greater amount of blood circulation. Rate-responsive pacemakers use special sensors that recognize body changes and help the heartbeat