KnowraLong QT syndromeLinked fromLinked fromThe 14 pages that link to Long QT syndrome, each with the reason it gives.All 14Broader topic 6Related 5Compared with 3Ion channelRelated: Variants in cardiac ion-channel genes can delay repolarization and prolong the QT interval.QT intervalBroader topic: It is the principal clinical syndrome defined by abnormal QT prolongation.Cardiac arrestRelated: It can provoke ventricular arrhythmias and arrest, particularly in otherwise young people.Sudden cardiac deathBroader topic: This specific electrical disorder is one cause of sudden death, particularly in younger people.Cardiac action potentialBroader topic: Prolonged ventricular action potentials contribute to the characteristic delayed repolarization.Ventricular fibrillationRelated: It can provoke torsades de pointes, which may degenerate into ventricular fibrillation.Excitation-contraction couplingRelated: Cardiac calcium cycling and contraction are coordinated with the electrical action potential.Ventricular tachycardiaCompared with: It is a substrate that can provoke torsades de pointes, not itself a ventricular tachycardia.Genetic heterogeneityBroader topic: Several genes can cause inherited forms with overlapping electrical and clinical features.Torsades de pointesRelated: The prolonged repolarization underlying torsades may result from inherited or acquired long QT syndrome.ArrhythmiaBroader topic: It illustrates how inherited or acquired electrical abnormalities can cause sudden fainting or cardiac arrest.Cascade screeningBroader topic: Testing relatives can identify people who need arrhythmia-risk management.Wolff–Parkinson–White syndromeCompared with: It is another electrical heart disorder, but its abnormality concerns repolarization rather than an extra conduction route.Brugada syndromeCompared with: It is another inherited arrhythmia syndrome, but its defining ECG abnormality differs.