Jul 19, 2024 · Long QT syndrome (LQTS) is caused by changes in the heart's electrical signaling system. It doesn't affect the shape or form of the heart. To understand the causes of LQTS, it may …

Many people with long QT syndrome have no signs or symptoms. When symptoms occur, they are generally caused by abnormal heart rhythms (arrhythmias), most commonly a form of ventricular …

The term “long QT” refers to the heart’s electrical activity as graphed on an electrocardiogram (ECG or EKG). Doctors name the different waves on the ECG graph P, Q, R, S and T. Letters Q through T …

Long QT syndrome is a problem with the electrical system in your heart taking too long to recharge. This issue can lead to a life-threatening type of abnormal heart rhythm.

Mar 24, 2022 · Long QT syndrome (LQTS) is a type of conduction disorder. A conduction disorder is a problem with the electrical system that controls your heartbeat. Learn about the causes, symptoms, …

Oct 7, 2022 · A long QT interval is diagnosed by ECG showing prolongation of the rate-corrected QT interval (QTc). Normal QTc values are < 0.43 second for males and < 0.45 second for females and …

Jul 31, 2025 · Long QT syndrome - an easy to understand guide covering causes, diagnosis, symptoms, treatment and prevention plus additional in depth medical information.

Long or prolonged QT interval is the name of the abnormal pattern displayed on an electrocardiogram. Long QT syndrome is often inherited, meaning it runs in the family and you're born with it.

May 22, 2024 · Long QT syndrome (LQTS) is an uncommon disorder where your heart takes longer than usual to recover after each beat.

Find out about long QT syndrome, including what the symptoms are, when and where to get medical help, the causes and how it's treated.