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Long QT syndrome

Long QT syndrome (LQTS) is a genetic disorder of the heart's electrical system. It is named after the distinctive pattern seen on an electrocardiogram (ECG or heart tracing).

If you have long QT syndrome, you may have been born with a gene that puts you at risk. It might also be caused by certain medications. 

People with long QT syndrome may experience fast or irregular heartbeats, fainting or seizures. If the heart is beating erratically for a long period it can cause cardiac arrest in some people, and possibly sudden death. 

Treatment for long QT syndrome often involves limiting physical activity, avoiding certain medications or taking medications to help prevent the development of fast or irregular heartbeats. Some people with long QT syndrome may also need surgery and an implantable device to control the rhythm of the heart. 

Follow the links below to find trusted information about long QT syndrome.

Last reviewed: July 2016

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Found 49 results

Long QT syndrome - myDr.com.au

Find out about Long QT syndrome, and how an electrical problem in the heart can cause a very fast heart beat and sudden death.

Read more on myDr website

Long QT syndrome - Better Health Channel

You should be investigated for long QT syndrome if you faint for no apparent reason, during or after exercise or emotional excitement.

Read more on Better Health Channel website

Holter Monitoring | Heart Centre for Children

What is a holter monitor, how does it work and what should I expect if my child needs to have one?

Read more on Sydney Children's Hospitals Network website

Heart arrhythmias and palpitations | Better Health Channel

Read more on Better Health Channel website

Arrhythmias (abnormal heart rhythms)

Arrhythmia is when you have an abnormal heart rhythm and heart palpitations are an awareness of your heartbeat.

Read more on WA Health website

Heart conditions - atrial fibrillation

Atrial fibrillation (AF) is a type of arrhythmia, which means that the heart beats in an irregular fashion. This is caused by a distortion of electrical messages that control the steady rhythm of the heart, which we know as the ‘heartbeat’.

Read more on Better Health Channel website

Digoxin - Lab Tests Online AU

To determine if the concentration of digoxin in your blood is at a therapeutic level or to detect toxic levels

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Heartbeat - myDr.com.au

The heartbeat is usually a regular rhythm, but when disturbed it becomes irregular and is felt as palpitations. Find out about extra beats and arrhythmias and when to visit the doctor.

Read more on myDr website

Electrocardiogram (ECG) | Heart Centre for Children

A description of what an electrocardiogram (ECG) involves and what to expect if your child needs one.

Read more on Sydney Children's Hospitals Network website

Atrial fibrillation

Atrial fibrillation is one of a number of disorders commonly referred to as arrhythmias, where your heart does not beat normally.

Read more on WA Health website

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