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Related Experiment Videos

Pre-excitation with syncope: a false lead?

S C Toal1, P J Nathani, A K Gupta

  • 1Department of Cardiology, GS Medical College and KEM Hospital, Parel, Mumbai.

Indian Heart Journal
|January 5, 2002
PubMed
Summary
This summary is machine-generated.

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Pre-excitation syndrome management requires considering alternative tachycardia mechanisms post-ablation. A young patient experienced syncope due to polymorphic ventricular tachycardia after accessory pathway ablation.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Diagnostics

Background:

  • Pre-excitation syndromes, like Wolff-Parkinson-White, involve accessory electrical pathways in the heart.
  • Recurrent syncope and palpitations are common symptoms requiring investigation.

Observation:

  • An 18-year-old female presented with syncope and palpitations.
  • An accessory pathway with a long antegrade effective refractory period (340 ms) was identified and ablated in the left lateral region.

Findings:

  • Post-ablation, the patient developed reproducible sustained polymorphic ventricular tachycardia, identified as the cause of syncope.
  • Successful ablation of the accessory pathway did not resolve the syncope, indicating an alternative underlying mechanism.

Implications:

Related Experiment Videos

  • This case highlights the importance of considering alternative tachycardia mechanisms in pre-excitation patients with atypical presentations.
  • Atypical syncope post-accessory pathway ablation necessitates a broader diagnostic approach beyond the initially targeted pathway.