%0 Case Reports %T A case of short QT-interval postventricular arrhythmia arrest from Torsade De Pointes, a new phenotype, or the result of tachycardia-mediated imbalance. %A Ifedili I %A Maturana M %A Kayali S %A Levine Y %A Kabra R %A Jha SK %J J Cardiovasc Electrophysiol %V 35 %N 3 %D 2024 Mar 4 %M 38174843 %F 2.942 %R 10.1111/jce.16164 %X BACKGROUND: We report the case of an 18-year-old female with recurrent syncope that was discovered to have congenital long QT syndrome (LQTS) and episodes of a transiently short QT interval after spontaneous termination of polymorphic ventricular tachycardia.
RESULTS: A cardiac event monitor revealed a long QT interval and initiation of polymorphic ventricular tachycardia by a premature ventricular complex on the preceding T-wave. After 1 minute of ventricular fibrillation, her arrhythmia spontaneously terminated with evidence of a short QT interval.
CONCLUSIONS: A transient, potentially artificial, short QT interval following Torsades de Pointes can occur in patients with LQTS.