Long QT Syndrome Clinic Overview

People who visit the Long QT Syndrome and Genetic Heart Disorders Clinic are seen by cardiologists with deep expertise in treating long QT syndrome. They work closely with other experts to develop a treatment plan tailored to you. Your care team may include specialists in heart surgery and hereditary conditions (genetics). They provide whole-person, coordinated care. If you need help for a related medical condition, doctors from other areas may be brought into the discussion.

Each year Mayo Clinic specialists evaluate and treat more than 4,000 people with long QT syndrome. Pediatric cardiologists and cardiovascular surgeons at Mayo Clinic in Minnesota have extensive experience treating children who have long QT syndrome and other heart conditions.

Conditions treated

Conditions diagnosed and treated at the Long QT Syndrome and Genetic Heart Disorders Clinic include:

Your treatment plan may involve:

  • Genetic testing and counseling.
  • Risk stratification and diagnostics.
  • Screening of first-degree family members.
  • Medical treatments.
  • Invasive electrophysiology diagnostic testing.
  • Placement of pacemakers and defibrillators.
  • Molecular autopsy.

Innovative research

The experts of the Mayo Clinic Long QT Syndrome and Genetic Heart Disorders Clinic conduct research to establish new best practices for the treatment of genetic arrhythmias. Doctors of the Windland Smith Rice Sudden Death Genomics Laboratory at Mayo Clinic in Minnesota research genetics, risks, causes, and diagnostic and treatment options for long QT syndrome and other causes of sudden death.


You may be referred to the Long QT Syndrome and Genetic Heart Disorders Clinic by your primary doctor, or you may make an appointment without a referral. Not all services are available at all locations. Please confirm when you contact us for an appointment.

Nationally recognized expertise

Mayo Clinic is top-ranked in more specialties than any other hospital and has been recognized as an Honor Roll member according to the U.S. News & World Report's 2023-2024 "Best Hospitals" rankings.

Mayo Clinic campuses are nationally recognized for expertise in cardiology and cardiovascular surgery:

  • Mayo Clinic in Rochester, Minn., Mayo Clinic in Phoenix/Scottsdale, Ariz., and Mayo Clinic in Jacksonville, Fla., 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.