Implantable Cardioverter Defibrillators
Helping People with Heart
Conditions Live Better
What is Long QT Syndrome?
Long QT syndrome (LQTS) is a disorder of the heart's electrical activity that may cause dangerous heart rhythms in response to exercise or stress.
What are the causes and risk factors of Long QT Syndrome?
LQTS is a rare condition that is usually inherited, but may also be acquired by certain medicines and conditions.
What are the symptoms of Long QT Syndrome?
The signs and symptoms of LQTS-related arrhythmias include unexplained fainting or seizures, drowning or near drowning (due to fainting while swimming), sudden cardiac arrest and sudden death.
How is Long QT Syndrome diagnosed?
To diagnose LQTS, your doctor will consider your electrocardiogram (ECG or EKG) results, your personal and family medical histories, and genetic test results.
How is Long QT Syndrome treated?
Treatments for LQTS include lifestyle changes, medicines, implanted medical devices, and surgery to regulate your heartbeat.