DEAR MAYO CLINIC: I recently read that long QT syndrome is quite common. What is it, and how is it diagnosed? I have read that fainting may be one sign of the disorder. Can long QT syndrome be treated ...

Prolonged QT syndrome (a.k.a. Long QT Syndrome) consists of multiple different variations including long QT type 1-12, Romano-Ward syndrome and Jervell-Lange-Nielsen syndrome. A prolonged QT interval ...

Stories of athletes who collapse and die grab the headlines, but you may not hear about the other 4,000 or so American children and young adults who die each year when their hearts malfunction because ...

Please provide your email address to receive an email when new articles are posted on . In long QT syndrome, patients doing vigorous exercise did not have more events than those doing nonvigorous ...

A machine learning model was more effective at detecting congenital long QT syndrome on resting ECGs than manual measurement of QT intervals by arrhythmia experts, in a new study. Researchers ...

A tool predicted whether patients with long QT syndrome (LQTS) are at risk of life-threatening events that could be prevented by an implantable cardioverter-defibrillator (ICD) or beta-blockers. "This ...

Timothy syndrome (TS), a rare autosomal-dominant disorder, is characterized by presence of a heart arrhythmia (long QT syndrome), which causes the cardiac muscle to take longer than usual to recharge ...

SAN FRANCISCO, CA—Consuming a large quantity of grapefruit juice has effects on the QT interval in healthy adults similar to those seen with moxifloxacin, an antibiotic with known QT-prolonging ...

Diagnosis of LQTS may be prompted by symptoms or may be made as a chance finding on Electrocardiography (EKG or ECG). Diagnosis of LQTS includes looking at a patient’s medical history, physical ...

Long QT syndrome (LQTS) is the prototypic cardiac channelopathy underscored by profound genetic and phenotypic heterogeneity. In 1991, the first LQTS chromosome locus was identified and subsequently ...

Long QT syndrome (LQTS) is a disease that affects the normal heart rhythm and electrical activity. It may lead to sudden onset and dangerous arrhythmias (irregularities of heart rate and rhythm) which ...

In 1995 and 1996, the three main genes for LQTS were identified. 5,6,7 Their identification modified understanding and even terminology; the LQT1 form involves mutations on the KCNQ1 (formerly KVLQT1) ...