Late-onset severe long QT syndrome

Ann Noninvasive Electrocardiol. 2018 Jul;23(4):e12517. doi: 10.1111/anec.12517. Epub 2017 Nov 30.

Abstract

We report a case of torsades de pointes arrhythmia as the first manifestation of congenital Long QT syndrome in a 77-year-old man with family history of sudden unexplained death. This case illustrates the importance of vigilant clinical assessment and genetic counseling in families with sudden death in order to identify properly asymptomatic relatives at risk for cardiac events. It also demonstrates that Long QT syndrome can still manifest with potentially fatal arrhythmias late in life in previously asymptomatic elderly patients.

Keywords: channelopathy; genetic test; long QT syndrome; sudden death.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Anti-Arrhythmia Agents / therapeutic use
  • Electrocardiography / methods*
  • Humans
  • Long QT Syndrome / diagnosis*
  • Long QT Syndrome / drug therapy
  • Long QT Syndrome / physiopathology*
  • Male
  • Propranolol / therapeutic use
  • Severity of Illness Index
  • Time

Substances

  • Anti-Arrhythmia Agents
  • Propranolol