Channelopathies (Brugada's Syndrome, Long QT, Etc)

Etiology

  • Other
  • Idiopathic abnormalities that affect ion channels controlling depolarization/repolarization of heart
  • Long QT syndrome (congenital)
  • Brugada syndrome

Risk Factors

  • Family history
  • Often present with symptoms/events at young ages (< 40)
  • Sometimes precipitated by athletic activity

Symptoms

  • Lightheadedness, palpitations, racing heart, SOB
  • Syncope, pre-syncope, sudden death

Tests