Long Qt Syndrome

New genes for regulating the heart rhythm discovered

The QT interval is part of the heart's electrical cycle as measured by ECG, and represents the electrical depolarization and repolarization of the ventricles. Lengthened intervals indicate dysfunction in the heart beat and ...

Jul 02, 2014
popularity not rated yet | comments 0

Congenital heart disease causes hypoglycaemia

In a new study, scientists from University of Copenhagen document a connection between congenital arrhythmia and the bodies' ability to handle sugar. The results can be of vital importance for patients with the disease and ...

Dec 19, 2013
popularity not rated yet | comments 0

New research takes aim at heart's 'safe zone'

Sudden cardiac arrest is the leading cause of death in the industrialized world. However, it's not well understood and is challenging to both predict and effectively prevent, according to Alain Karma, Arts and Sciences Distinguished ...

Oct 28, 2013
popularity not rated yet | comments 0

Genes provide clues to gender disparity in human hearts

Healthy men and women show little difference in their hearts, except for small electrocardiographic disparities. But new genetic differences found by Washington University in St. Louis researchers in hearts with disease could ...

Jan 24, 2013
popularity not rated yet | comments 0 | with audio podcast

The long QT syndrome (LQTS) is a rare inborn heart condition in which delayed repolarization of the heart following a heartbeat increases the risk of episodes of torsade de pointes (TDP, a form of irregular heartbeat that originates from the ventricles). These episodes may lead to palpitations, fainting and sudden death due to ventricular fibrillation. Episodes may be provoked by various stimuli, depending on the subtype of the condition.

The condition is so named because of the appearances of the electrocardiogram (ECG/EKG), on which there is prolongation of the QT interval. In some individuals the QT prolongation occurs only after the administration of certain medications.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

Monitoring pulse after stroke may prevent a second stroke

New research suggests that regularly monitoring your pulse after a stroke or the pulse of a loved one who has experienced a stroke may be a simple and effective first step in detecting irregular heartbeat, a major cause of ...

Targeting the brain to treat obesity

Unlocking the secrets to better treating the pernicious disorders of obesity and dementia reside in the brain, according to a paper from American University's Center for Behavioral Neuroscience. In the paper, researchers ...

Study links enzyme to autistic behaviors

Fragile X syndrome (FXS) is a genetic disorder that causes obsessive-compulsive and repetitive behaviors, and other behaviors on the autistic spectrum, as well as cognitive deficits. It is the most common ...

Strategy proposed for preventing diseases of aging

Medicine focuses almost entirely on fighting chronic diseases in a piecemeal fashion as symptoms develop. Instead, more efforts should be directed to promoting interventions that have the potential to prevent ...

Genetics of cancer: Non-coding DNA can finally be decoded

Cancer is a disease of the genome resulting from a combination of genetic modifications (or mutations). We inherit from our parents strong or weak predispositions to developing certain kinds of cancer; in addition, we also ...