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Pacemaker Insertion

What is a pacemaker?

A pacemaker is a small electronic device that helps regulate slow electrical problems in the heart. The pacemaker is usually implanted in the chest, just below the collarbone. A pacemaker may be recommended to keep the heartbeat from slowing down to a dangerously low rate.


The heart is a pump made up of muscle tissue that is stimulated by electrical currents, which normally follow a specific circuit within the heart. These natural electrical impulses coordinate contractions of the different parts of the heart to keep blood flowing the way it should. A pacemaker may be needed when there are problems with the natural electrical conduction system of the heart.

A pacemaker is made of three parts: a pulse generator, one or more leads, and an electrode on each lead. A pacemaker signals the heart to beat when the natural heartbeat is too slow or irregular.

Why might I need a pacemaker?

A pacemaker may be put in to stimulate a faster heart rate when the heart is beating too slowly and causing problems that cannot be corrected with other treatments.

Problems with the heart rhythm may mean the heart is not pumping enough blood to the body. If the heart rate is too slow, the blood is pumped too slowly. If the heart rate is too fast or too irregular, the heart chambers are unable to fill up with enough blood to pump out with each beat. When the body does not get enough blood, symptoms such as tiredness, dizziness, fainting, and/or chest pain may occur.

Some examples of heart rate and rhythm problems for which a pacemaker might be inserted include:

  • Bradycardia. This is when the heart beats too slowly.
  • Tachy-brady syndrome. This is characterized by alternating fast and slow heartbeats.
  • Heart block. This occurs when the electrical signal is delayed or blocked as it travels through the heart muscle. There are several types of heart blocks.

There may be other reasons for your healthcare provider to recommend pacemaker insertion.

What are the risks of pacemaker insertion?

Possible risks of pacemaker insertion include, but are not limited to:

  • Bleeding from the incision (cut) or catheter insertion site
  • Damage to the vessel where the catheter is put into the heart
  • Infection of the incision or catheter site
  • Pneumothorax. If the nearby lung is punctured during the procedure, leaking air becomes trapped in the pleural space (outside the lung but within the chest wall); this can cause breathing problems and in extreme cases may cause the lung to collapse.

For some patients, having to lie still on the procedure table for the length of the procedure may cause some discomfort or pain.

There may be other risks depending on your specific medical condition. Be sure to discuss any concerns with your healthcare provider prior to the procedure.

How do I get ready for pacemaker insertion?


  • Your healthcare provider will explain the procedure to you and ask if you have any questions.
  • You will be asked to sign a consent form that gives your permission to do the procedure. Read the form carefully and ask questions if anything is not clear.
  • Tell your healthcare provider if you are sensitive to or are allergic to any medications, iodine, latex, tape, or anesthetic agents (local and general).
  • You will need to fast (not eat or drink) for a certain period prior to the procedure. Your healthcare provider will tell you how long to fast, usually overnight.
  • If you are pregnant or think you might be pregnant, you should tell your healthcare provider.
  • Be sure your healthcare provider knows about all medications (prescription and over-the-counter), vitamins, herbs, and supplements that you are taking.
  • Tell your healthcare provider if you have heart valve disease, as you may need to take antibiotics prior to the procedure.
  • Tell your healthcare provider if you have a history of bleeding disorders or if you are taking any anticoagulant (blood-thinning) medications, aspirin, or other medications that affect blood clotting. You may need to stop some of these medications prior to the procedure.
  • Your healthcare provider may do a blood test prior to the procedure to see how long it takes your blood to clot. Other blood tests may be done as well.
  • You may get a sedative prior to the procedure to help you relax. If a sedative is given and there is a possibility that you may be able to go home afterward, you will need someone to drive you home. You will likely spend at least one night in the hospital after the procedure for observation and to be sure that the pacemaker is working the way it should.
  • Based on your medical condition, your healthcare provider may request other specific preparation.


What happens during pacemaker insertion?

A pacemaker insertion may be done on an outpatient basis or as part of your hospital stay. Procedures may vary depending on your condition and your healthcare providers practice.

Generally, a pacemaker insertion follows this process:

  1. You will be asked to remove any jewelry or other objects that may interfere with the procedure.
  2. You will be asked to remove your clothing and will be given a gown to wear.
  3. You will be asked to empty your bladder prior to the procedure.
  4. If there is a lot hair at the incision site, it may be clipped off.
  5. An intravenous (IV) line will be started in your hand or arm prior to the procedure for injection of medication and to administer IV fluids.
  6. You will lie on your back on the procedure table.
  7. You will be connected to an electrocardiogram (ECG) monitor that records the electrical activity of your heart and monitors the heart during the procedure using small, plastic electrodes that stick to your skin. Your vital signs (heart rate, blood pressure, breathing rate, and oxygen level) will also be monitored during the procedure.
  8. You will get a sedative medication in your IV before the procedure to help you relax. However, you will likely stay awake during the procedure.
  9. The skin at the pacemaker insertion site will be cleaned with antiseptic soap.
  10. Sterile towels and a sheet will be placed around this area.
  11. A local anesthetic will be injected into the skin of the chest at the insertion site.
  12. Once the area is numb, the healthcare provider will make a small incision (cut) at the insertion site.
  13. A sheath, or introducer, is put into a large blood vessel, usually under the collarbone. The sheath is a plastic tube through which the pacer lead wire(s) will be threaded into the blood vessel and advanced into the heart.
  14. It will be very important for you to stay still during the procedure so that the catheter does not move and to prevent damage at the insertion site.
  15. The lead wire will be threaded through the introducer into the blood vessel. The healthcare provider will advance the lead wire through the blood vessel into the heart. Fluoroscopy, (a special type of X-ray “movie” that is displayed on a TV monitor), may be used to help check the location of the leads.
  16. Once the lead wire is inside the heart, it will be tested to be sure it’s in the right location and it works. There may be 1, 2, or 3 lead wires inserted, depending on the type of device your healthcare provider has chosen for your condition.
  17. The pacemaker generator will be slipped under your skin through the incision (just below the collarbone) after the lead wire is attached to it. Generally, the generator will be placed on the nondominant side. (If you are right-handed, the device will be placed in your upper left chest. If you are left-handed, the device will be placed in your upper right chest).
  18. The ECG will be checked to be sure that the pacer is working correctly.
  19. The skin incision will be closed with sutures, adhesive strips, or a special glue.
  20. A sterile bandage or dressing will be applied.

What happens after pacemaker insertion?

In the hospital

After the procedure, you may be taken to the recovery room for observation or returned to your hospital room. A nurse will monitor your vital signs.

You should let your nurse know right away if you feel any chest pain or tightness, or any other pain at the insertion site.

After the period of bed rest has been completed, you may get out of bed with help. The nurse will be with you the first time you get up, and will check your blood pressure while you are lying in bed, sitting, and standing. You should move slowly when getting up from the bed to avoid any dizziness.

You will be able to eat or drink once you are completely awake.

The insertion site may be sore or painful. Pain medication may be taken if needed.

Your healthcare provider will see you in your room while you are recovering. The healthcare provider will give you specific instructions and answer any questions you may have.

Once your blood pressure, pulse, and breathing are stable and you are alert, you will be taken to your hospital room or allowed to go home. It’s common to spend at least one night in the hospital after pacemaker implantation.

You should arrange to have someone drive you home from the hospital following your procedure.

At home

You should be able to return to your normal daily routine within a few days. Your healthcare provider will tell you if you will need to wait before returning to your normal activities. You should not do any lifting or pulling for a few weeks. You may need to limit movement of the arm on the side that the pacemaker was placed.

You will most likely be able to go back to your usual diet, unless your healthcare provider tells you differently.

It will be important to keep the insertion site clean and dry. You will be given instructions about bathing and showering.

Your healthcare provider will give you specific instructions about driving.

Ask your healthcare provider when you will be able to return to work. The nature of your work, your overall health, and your progress after surgery will determine how soon you may go back to work.

Contact your healthcare provider right away if you have any of the following:

  • Fever and/or chills
  • Increased pain, redness, swelling, or bleeding or other drainage from the insertion site
  • Chest pain/pressure, nausea and/or vomiting, profuse sweating, dizziness and/or fainting
  • Palpitations

After a pacemaker insertion, regularly scheduled appointments will be made to ensure the pacemaker is working the way it should. The healthcare provider uses a special computer, called a programmer, to review the pacemaker's activity and adjust the settings when needed.

Your healthcare provider may give you additional or alternate instructions after the procedure, depending on your particular situation.

Things to keep in mind

The following precautions should always be considered. Discuss these in detail with your healthcare provider, or call the company that made your device:

  • Always carry an ID card that states you have a pacemaker. In addition, you may want to wear a medical ID bracelet indicating that you have a pacemaker.
  • Let screeners know you have a pacemaker before going through airport security detectors. In general airport detectors are safe for pacemakers, but the small amount of metal in the pacemaker and leads may set off the alarm. If you are selected for additional screening by hand-held detector devices, politely remind the screeners that the detector wand should not be held over your pacemaker for longer than a few seconds, as these devices contain magnets that may affect the function or programming of your pacemaker.
  • You should not have a magnetic resonance imaging (MRI) imaging test (unless you have a specially designed pacemaker).
  • You should avoid large magnetic fields such as power generation sites and industrial sites such as automobile junkyards that use large magnets.
  • Do not use short-wave or microwave diathermy that uses high-frequency, high-intensity signals (this may be used in physical therapy to treat muscles). The signals can interfere with or damage your pacemaker.
  • Turn off large motors, such as cars or boats, when working close to them, they may create a magnetic field.
  • Avoid high-voltage or radar machinery, such as radio or television transmitters, electric arc welders, high-tension wires, radar installations, or smelting furnaces.
  • If you need a surgical procedure in the future, be sure to let the surgeon know that you have a pacemaker well before the operation. Also ask your cardiologist's advice on whether anything special should be done prior to and during the surgery, the electrocautery device that controls bleeding may interfere with the pacemaker. Sometimes the pacemaker's programming will be temporarily changed (using a magnet) during the surgery to minimize the possibility of interference from the electrocautery.
  • When involved in a physical, recreational, or sporting activity, protect yourself from trauma to the pacemaker. A blow to the chest near the pacemaker can affect its functioning. If you are hit in that area, you may want to see your healthcare provider to make sure your pacemaker is working the way it should be.
  • Cell phones in the U.S. with less than 3 watts of output do not seem to affect pacemakers or the pulse generator, but as a precaution, cell phones should be kept at least 6 inches away from your pacemaker. Do not carry a cell phone in your breast pocket over your pacemaker.
  • Always consult your healthcare provider when you feel ill after an activity, or when you have questions about beginning a new activity.
  • Always contact your healthcare provider if you have any questions about using certain equipment near your pacemaker.


Next steps

Before you agree to the test or the procedure make sure you know:

  • The name of the test or procedure
  • The reason you are having the test or procedure
  • The risks and benefits of the test or procedure
  • When and where you are to have the test or procedure and who will do it
  • When and how will you get the results
  • How much will you have to pay for the test or procedure 
Pacemaker Insertion - WellSpan Health

Online Medical Reviewer: Fraser, Marianne, MSN, RN
Online Medical Reviewer: Stump-Sutliff, Kim, RN, MSN, AOCNS
Last Review Date: 2014-02-27T00:00:00
Last Modified Date: 2016-05-23T00:00:00
Posting Date: 2014-02-27T00:00:00
Published Date: 2016-05-23T00:00:00
Last Review Date: 2007-03-30T00:00:00
© 2016 WellSpan Health. All Rights Reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

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