Mayo Clinic's approach

At Mayo Clinic, electrophysiologists and rhythm analysis technicians use their expertise in electrocardiograms and other types of heart rhythm monitoring to provide exactly the care you need.

  • Individualized approach. Mayo Clinic specialists in the Heart Rhythm Clinic will talk with you about the types of heart rhythm monitoring available and which one meets your needs. They will develop an approach that fits with your life and condition.
  • Latest technology. Mayo Clinic care providers use many different type of heart-monitoring devices. Some of them use wireless technology, so your ECG test can be downloaded and interpreted immediately and 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 monitor 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. Doctors at Mayo Clinic research innovative uses of ECG diagnostic techniques to benefit people with heart disease. Doctors 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 rhythm analysis technician at Mayo Clinic monitors and interprets ECG readings.

Expertise and rankings

Implantable loop recorder consultation Implantable loop recorder consultation

A heart rhythm specialist holds the tiny implantable part of a loop recorder as he explains the risks and benefits of this method of remote heart monitoring.

Heart rhythm disorders expertise

Mayo Clinic specialists 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 many thousands of all types of heart rhythm monitoring each year.

These tests are interpreted with a team-based approach by Mayo Clinic doctors trained in heart rhythm disorders (electrophysiologists) and nationally certified rhythm analysis technicians in the Heart Rhythm and Physiological Monitoring Laboratory at Mayo Clinic's campus in Rochester, Minnesota.

Mayo Clinic heart specialists write textbooks, such as Mayo Clinic Cardiology, and 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 2022–2023 "Best Children's Hospitals" rankings.

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

March 19, 2022
  1. Electrocardiogram. National Heart, Lung, and Blood Institute. Accessed March 27, 2020.
  2. Goldman L, et al., eds. Approach to the patient with suspected arrhythmia. In: Goldman-Cecil Medicine. 26th ed. Elsevier; 2020. Accessed March 27, 2020.
  3. AskMayoExpert. Ambulatory heart rhythm monitoring. Mayo Clinic; 2021.
  4. Fowler GC, et al., eds. Office electrocardiograms. In: Pfenninger and Fowler's Procedures for Primary Care. 4th ed. Elsevier; 2020. Accessed Accessed March 27, 2020.
  5. What causes an arrhythmia? National Heart, Lung, and Blood Institute. Accessed March 27, 2020.
  6. Bonow RO, et al., eds. Electrocardiography. In: Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 11th ed. Saunders Elsevier; 2019. Accessed March 27, 2020.
  7. Heart arrhythmia. Mayo Clinic. Accessed March 27, 2020.
  8. Noseworthy PA (expert opinion). Mayo Clinic. March 27, 2020.


Electrocardiogram (ECG or EKG)