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SVT

Any Tachycardia orginating above AV node

Diagnosis

  • ECG

SVTs can be classified based on:

  • Site of origin (atria or AV node) or;
  • Regularity (regular or irregular)
  • Classification based on QRS width is unhelpful as influenced by the presence ,
    • pre-existing bundle branch block,
    • rate-related aberrant conduction,
    • presence of accessory pathways.

alt text

Carotid massamge 10% sucess rate in Reversal

Valsalva mauvar 45% sucess rate