Long QT syndrome (LQTS) can be asymptomatic-identifiable as an incidental finding on
electrocardiogram-or it can present with palpitation, syncope, seizures, or sudden cardiac …

Since the early description of its phenotypes, 1–3 congenital long QT syndrome (LQTS) has
been recognized as a disease entity showing prolonged QT intervals on electrocardiogram …

BACKGROUND The Long QT Syndrome (LQTS) is an infrequently occurring familial
disorder in which affected individuals have electrocardiographic QT interval prolongation …

Hereditary long QT syndrome (LQTS) is a congenital disorder characterized by a
prolongation of the QT interval detectable on the standard 12-leads ECG. The natural history …

A neonate who had presented with sustained irregular heart rate during labor was found to
have QT prolongation and repetitive polymorphic ventricular tachycardia (torsades de …

Congenital long QT syndrome is an inherited disorder of cardiac repolarization that
predisposes to syncope and to sudden death from polymorphic ventricular tachycardia. The …

INTRODUCTION—The long QT syndrome (LQTS) is a disorder of myocardial repolarization
characterized by a prolonged QT interval on the electrocardiogram (ECG)(waveform 1). This …

Long QT syndrome (LQTS) is an infrequently occurring familial disorder in which affected
members have electrocardiographic QT interval prolongation and a propensity to syncope …

The primary form of long QT syndrome (LQTS) is an infrequently occuring familial disorder in
which affected members have electrocardiographic QT interval prolongation and a …

Figure 1. Electrocardiographic traces from leads II and V5 (A, C–F) and lead II (B) in patients
with long QT syndrome. A, ECG traces from the initial patient described showing low …