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The world’s smallest pacemaker

The world’s smallest pacemaker

Unlike most pacemakers that are placed in the patient's chest with leads running to the heart, Micra is implanted directly into the patient’s heart.

  • Less invasive — Micra is placed in the heart via a vein in the leg, thus no chest incision, scar, or bump that results from conventional pacemakers.
  • Self-contained — Micra is completely self-contained within the heart. It eliminates potential medical complications arising from a chest incision and from wires running from a conventional pacemaker into the heart.
  • Small — Micra is 93% smaller than conventional pacemakers, about the size of a large vitamin capsule.

For most patients, the Micra design translates to fewer medical complications and fewer post-implant activity restrictions. 

Proven features

  • Permits you to safely undergo magnetic resonance imaging (MRI), a diagnostic tool doctors use to "see" inside the body
  • Adjusts your heart rate automatically by sensing changes in your body related to your activity level and adjusting your heart rate accordingly
  • Features an estimated battery longevity of 12 years
  • Proven features

    Is Micra the right pacemaker for all patients?
    No. Micra is intended for patients who need a single chamber pacemaker (also known as a ventricular pacemaker, or VVIR). Talk  to your doctor about the suitability, benefits, and risks of Micra for you.

    How is Micra placed into my heart?
    Your doctor will insert a "straw-like" catheter into a vein in your upper thigh and use the catheter to move Micra into the right ventricle of your heart. The catheter is then removed. 

    Are MRI scans okay with my Micra?
    Micra was designed, tested, and approved to be used safely with MRI scanners. You can undergo an MRI scan as long as patient eligibility requirements are met. Your pacemaker ID card specifies the implanted device model. If your doctor has questions about scanning eligibility, he or she should contact a Medtronic representative or Medtronic Technical Services.  

    Will items containing magnets affect my Micra?
    Maybe. We recommend keeping items containing magnets at least 6 inches away from an implanted pacemaker. This includes mobile phones, magnetic therapy products, stereo speakers, and handheld massagers. We do not recommend putting a mobile phone in your shirt pocket or using magnetic mattress pads and pillows.

    Is it safe to go through an airport metal detector?
    Yes, you can safely go through airport security with this device
    .
    Are household appliances safe to use?
    Yes, household appliances that are properly maintained and in good working order are safe. This includes microwave ovens, major appliances, electric blankets, and heating pads.

    Can I exercise, resume my regular activities?
    Yes, you should be able to return to your usual activities, as long you do not exceed your fitness level. Discuss questions about specific activities with your doctor.

    Does Micra last forever?
    No, Micra has a battery and the battery life depends on your heart condition. The estimated average longevity is 12 years.3 Individual patient experience may vary. Your doctor will check on the battery when you come in for a checkup. 

    What happens when the Micra battery runs low?
    Micra is designed to provide options when a new device is needed. It may be turned off and a new Micra or a traditional system may be implanted. The Micra also offers a retrieval feature to enable retrieval, when possible. Your doctor will determine what is best for you.

    How often will I need to visit the doctor after Micra is implanted?
    Your doctor will decide how often he or she wants to see you. Typically, your first follow-up appointment is one month after implant, with additional follow-ups every 6-12 months.

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