Long QT syndrome (patient information)

Jump to navigation Jump to search

Long QT syndrome

Overview

What are the symptoms?

What are the causes?

Who is at highest risk?

Diagnosis

When to seek urgent medical care?

Treatment options

Where to find medical care for Long QT syndrome?

Prevention

What to expect (Outlook/Prognosis)?

Possible complications

Long QT syndrome On the Web

Ongoing Trials at Clinical Trials.gov

Images of Long QT syndrome

Videos on Long QT syndrome

FDA on Long QT syndrome

CDC on Long QT syndrome

Long QT syndrome in the news

Blogs on Long QT syndrome

Directions to Hospitals Treating Long QT syndrome

Risk calculators and risk factors for Long QT syndrome

For the WikiDoc page for this topic, click here

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief:; Assistant Editor(s)-In-Chief:

Overview

Long QT syndrome is a condition resulting in an abnormality in the way electrical impulses are conducted within the heart. It can cause sudden cardiac arrhythmias in response to exercise or stress. Arrhythmias are abnormalities in the rhythm of the heartbeat. These arrhythmia's can be dangerous and fatal, but not everyone with long QT syndrome will have arrhythmias.

What are the symptoms of Long QT syndrome?

  • Seizures - if the heart continues to beat abnormally, the brain can become deprived of oxygen, which can then cause seizures.
  • Fainting - fainting or syncope is the most common symptom in persons with long QT syndrome. The fainting can occur spontaneously without warning, or in response to certain stressors such as emotional stress, exercise, excitement or loud noises. Often when people are about to faint, they may experience lightheadedness, heart palpitations, blurred vision or weakness.
  • Sudden death - in some circumstances a fatal arrhytmia that is not quickly intervened on, may cause sudden death.

What causes Long QT syndrome?

Who is at highest risk?

Diagnosis

When to seek urgent medical care?

Treatment options

Lifestyle changes and medications can be used to help treat long QT syndrome. These are:

Where to find medical care for Long QT syndrome?

Directions to Hospitals Treating Condition

Prevention

What to expect (Outlook/Prognosis)?

People who are treated with lifestyle modifications and medications live longer than those who are not. For people who are not treated, half of them, mostly those with the inherited form of long QT syndrome, will die within 10 years.

Possible complications

Long QT syndrome can result in fatal heart arrhythmias and death.

Sources