Lown-Ganong-Levine syndrome

(Redirected from Lown-Ganong-Levine Syndrome)

Background

  • Poorly understood pre-excitation condition
  • Atrioventricular re-entrant tachycardia (AVRT) due to James fibers
    • Bundle of James accessory pathway creates atrio-hisian bypass tract
      • Convincing existence of the James accessory pathway has not been conclusively demonstrated

Clinical Features

Differential Diagnosis

Narrow-complex tachycardia

Palpitations

Evaluation

  • ECG
    • Short PR interval
    • Normal QRS
    • No delta wave
    • May have ventricular premature complexes
  • May appear similar to:
    • WPW
    • AV junctional rhythm

Management

  • Vagal manoeuvres may terminate episodes of SVT
  • Counsel to avoid alcohol, coffee, and other stimulants
  • Patients with demonstrated accessory pathways on electrophysiological study may benefit from ablation

Disposition

  • Home with cardiology follow up
  • Consider referral for Holter monitor, echo to rule out structural disease, and electrophysiologic studies

See Also

References

Authors:

Ross Donaldson