Mayo Clinic's approach

At Mayo Clinic, electrophysiologists and care professionals with training in heart rhythm analysis use their expertise and heart monitoring methods, such as electrocardiograms, to provide exactly the care you need.

  • Individualized approach. Mayo Clinic care professionals in the Heart Rhythm Clinic talk to you about the types of heart rhythm monitoring available and which one meets your needs.
  • Latest technology. Many different types of heart-monitoring devices are available at Mayo Clinic. Some of them use wireless technology, so your ECG test can be downloaded and interpreted immediately. Results can be put into your medical record within minutes. Mayo Clinic helped develop and was among the first to use mobile cardiac outpatient telemetry. This method uses wireless ECG technology to continuously observe your heart rhythm from your home.
  • ECG interpretation service. Mayo Clinic's Heart Rhythm and Physiological Monitoring Laboratory in Rochester, Minnesota, offers high-quality interpretation of ECG exams for adults, adolescents and children. ECG interpretations are available 24 hours a day, seven days a week. In urgent situations, ECG interpretations are available within minutes.
  • Innovative research. Researchers at Mayo Clinic study new uses of ECG to help diagnose people with heart disease. For example, researchers are using artificial intelligence techniques with electrocardiograms to better detect atrial fibrillation (AFib), a type of irregular heartbeat. Researchers in Mayo Clinic's Cardiovascular Research Center study and adopt new techniques for and uses of electrocardiography.
Monitoring ECG readings Monitoring ECG readings

A nationally certified heart rhythm analysis professional at Mayo Clinic checks and interprets ECG results.

Expertise and rankings

Implantable loop recorder consultation Implantable loop recorder consultation

A heart rhythm specialist explains the risks and benefits of remote heart monitoring while holding the tiny implantable part of a loop recorder. A loop recorder is a device placed under the skin in the chest area to detect irregular heartbeats.

Heart rhythm disorders expertise

Mayo Clinic professionals in the Heart Rhythm Clinic are experts in diagnosing heart rhythm disorders with monitoring devices, including Holter monitors and implantable loop recorders. Mayo Clinic performs all types of heart rhythm monitoring.

The test results are interpreted with a team-based approach. Mayo Clinic doctors trained in heart rhythm disorders, called electrophysiologists, and nationally certified heart rhythm analysis professionals in the Heart Rhythm and Physiological Monitoring Laboratory interpret results at Mayo Clinic's campus in Rochester, Minnesota.

Mayo Clinic healthcare professionals have authored textbooks, such as Mayo Clinic Cardiology. They also lead seminars for other doctors on the use of electrocardiograms to diagnose complex heart rhythm disorders.

Nationally recognized expertise

Mayo Clinic in Rochester, Minnesota, Mayo Clinic in Phoenix/Scottsdale, Arizona, and Mayo Clinic in Jacksonville, Florida, are ranked among the Best Hospitals for heart and heart surgery by U.S. News & World Report. Mayo Clinic Children's Center in Rochester is ranked the No. 1 hospital in Minnesota, and the five-state region of Iowa, Minnesota, North Dakota, South Dakota and Wisconsin, according to U.S. News & World Report's 2023-2024 "Best Children's Hospitals" rankings.

Learn more about Mayo Clinic's cardiovascular medicine and cardiovascular surgery departments' expertise and rankings.

Locations, travel and lodging

Mayo Clinic has major campuses in Phoenix and Scottsdale, Arizona; Jacksonville, Florida; and Rochester, Minnesota. The Mayo Clinic Health System has dozens of locations in several states.

For more information on visiting Mayo Clinic, choose your location below:

Costs and insurance

Mayo Clinic works with hundreds of insurance companies and is an in-network provider for millions of people.

In most cases, Mayo Clinic doesn't require a physician referral. Some insurers require referrals or may have additional requirements for certain medical care. All appointments are prioritized on the basis of medical need.

Learn more about appointments at Mayo Clinic.

Please contact your insurance company to verify medical coverage and to obtain any needed authorization prior to your visit. Often, your insurer's customer service number is printed on the back of your insurance card.

More information about billing and insurance:

Mayo Clinic in Arizona, Florida and Minnesota

Mayo Clinic Health System

Clinical trials

Explore Mayo Clinic studies of tests and procedures to help prevent, detect, treat or manage conditions.

April 02, 2024
  1. Heart tests. National Heart, Lung, and Blood Institute. Accessed Dec. 28, 2023.
  2. Goldman L, et al., eds. Approach to the patient with suspected arrhythmia. In: Goldman-Cecil Medicine. 27th ed. Elsevier; 2024. Accessed Jan. 2, 2024.
  3. AskMayoExpert. Ambulatory heart rhythm monitoring. Mayo Clinic; 2023.
  4. Fowler GC, et al., eds. Office electrocardiograms. In: Pfenninger and Fowler's Procedures for Primary Care. 4th ed. Elsevier; 2020. Accessed Jan. 2, 2024.
  5. Noseworthy PA (expert opinion). Mayo Clinic. March 27, 2020.
  6. Libby P, et al., eds. Electrocardiography. In: Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 12th ed. Elsevier; 2022. Accessed Jan. 2, 2024.
  7. Heart arrhythmia. Mayo Clinic. Accessed Jan. 2, 2024.
  8. Yao X, et al. Realtime diagnosis from electrocardiogram artificial intelligence-guided screening for atrial fibrillation with long follow-up (REGAL): Rationale and design of a pragmatic, decentralized, randomized controlled trial. American Heart Journal. 2024; doi:10.1016/j.ahj.2023.10.005.
  9. Noseworthy PA, et al. Artificial intelligence-guided screening for atrial fibrillation using electrocardiogram during sinus rhythm: A prospective non-randomised interventional trial. 2022; doi:10.1016/S0140-6736(22)01637-3.
  10. Greenland P, et al. 2010 ACCF/AHA guideline for assessment of cardiovascular risk in asymptomatic adults: A report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. 2010; doi:10.1161/CIR.0b013e3182051b4c.
  11. Lopez-Jimenez F (expert opinion). Mayo Clinic. Jan 4, 2024.


Electrocardiogram (ECG or EKG)