An arrhythmia is a disturbance in the normal rate or rhythm of your heartbeat, caused by abnormalities in the heart's electrical system. Arrhythmias can range from annoying palpitations to life threatening sudden cardiac death risks
Some arrhythmias may require an implanted device to keep the heart beating in a healthy rhythm. These devices are implanted under the skin and have wires that deliver electrical energy to the heart. At The Heart Hospital Baylor, we use proven medical expertise to implant the appropriate device designed to manage your arrhythmia effectively. The types of devices we implant may include implantable cardiac defibrillators, cardiac resynchronization therapy (CRT) and pacemakers.
What is a Pacemaker?
A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses electrical pulses to prompt the heart to beat at a normal rate.
Pacemakers are used to treat arrhythmias. A pacemaker can relieve some arrhythmia symptoms, such as fatigue and fainting. A pacemaker also can help a person who has abnormal heart rhythms resume a more active lifestyle.
Faulty electrical signaling in the heart causes arrhythmias. Pacemakers use low-energy electrical pulses to overcome this faulty electrical signaling. Pacemakers can:
Pacemakers can be temporary or permanent. Permanent pacemakers are used to control long-term heart rhythm problems. Temporary pacemakers are used to treat short-term heart problems, such as a slow heartbeat that's caused by a heart attack, heart surgery, or an overdose of medicine.
Temporary pacemakers also are used during emergencies. They might be used until your doctor can implant a permanent pacemaker or until a temporary condition goes away. If you have a temporary pacemaker, you'll stay in a hospital as long as the device is in place.
How Does a Pacemaker Work?
A pacemaker consists of a battery, a computerized generator, and wires with sensors at their tips. The battery powers the generator, and both are surrounded by a thin metal box. The wires connect the generator to the heart.
A pacemaker helps monitor and control your heartbeat. The electrodes detect your heart's electrical activity and send data through the wires to the computer in the generator. If your heart rhythm is abnormal, the computer will direct the generator to send electrical pulses to your heart.
New pacemakers can monitor your blood temperature, breathing, and other factors. They also can adjust your heart rate to changes in your activity.
The pacemaker's computer also records your heart's electrical activity and heart rhythm. Your doctor will use these recordings to adjust your pacemaker so it works better for you.
Pacemakers have one to three wires that are each placed in different chambers of the heart.
Types of Pacemaker Programming
The two main types of programming for pacemakers are demand pacing and rate-responsive pacing.
Your doctor will work with you to decide which type of pacemaker is best for you.
What to Expect During Pacemaker Surgery
Placing a pacemaker requires minor surgery. The surgery usually is done in a hospital or special heart treatment laboratory.
Your doctor will insert a needle into a large vein, usually near the shoulder opposite your dominant hand. Your doctor will then use the needle to thread the pacemaker wires into the vein and to correctly place them in your heart.
An x-ray "movie" of the wires as they pass through your vein and into your heart will help your doctor place them. Once the wires are in place, your doctor will make a small cut into the skin of your chest or abdomen. They will slip the pacemaker's small metal box through the cut, place it just under your skin, and connect it to the wires that lead to your heart. The box contains the pacemaker's battery and generator.
Once the pacemaker is in place, your doctor will test it to make sure it works properly. The entire surgery takes a few hours.
Pacemaker Surgery Risks
Pacemaker surgery generally is safe. If problems do occur, they may include:
Talk with your doctor about the benefits and risks of pacemaker surgery.
Source: National Heart, Lung, and Blood Institute; National Institutes of Health; U.S. Department of Health and Human Services.
Why The Heart Hospital Baylor?
Advanced technology meets compassionate, five-star care at The Heart Hospital Baylor. Providing innovative treatment methods for arrhythmias to our guests is an important part of The Heart Hospital Baylor patient experience. Using advanced technology, our guests receive patient-centered care from highly skilled leaders in the electrophysiology field.
Following a pacemaker implant, The Heart Hospital Baylor stays in contact with you and your physicians. Ongoing device maintenance and management are important. With remote device follow-up, your implanted device can transmit information to a device in your home. Your home unit downloads the recorded information and sends it to our team where we can monitor how well your pacemaker is working. This allows timely checks on your device's performance.
The electrophysiologists on the medical staff at The Heart Hospital Baylor also investigate tomorrow's treatments today to provide you with the advanced care. The specialists on our medical staff take lead and participate in many different clinical trials, such as an atrial fibrillation study that compares medication to ablation to assess the risks and benefits and another study investigating hybrid surgery combining a surgical and catheter approach for atrial fibrillation.
To learn more, call 940.220.0600 or toll-free 1.855.760.0600. For a physician referral, patients may call 1.855.9BAYLOR (1.855.922.9567).
Physicians are members of the medical staff at one of Baylor Health Care System's subsidiary, community or affiliated medical centers and are neither employees nor agents of those medical centers, The Heart Hospital Baylor Denton or Baylor Health Care System.