Supraventricular Tachycardia (SVT)

Synonyms: SVT, AVNRT, AVRT, atrial tachycardia

Basic overview

SVT represents a group of ‘electrical short-circuits’ originating in the top chambers of the heart. This causes an abnormally fast heart rhythm (usually >120 bpm)


Palpitations, dizziness, breathlessness, chest discomfort


If they are infrequent and self-terminating then sometimes no treatment is required.

If they are frequent or uncomfortable then there are two strategies:

  • Medications: these may include either a pill-in-the- pocket approach or regular prophylactic medications (beta-blockers, calcium channel blockers, sotalol, flecainide or rarely amiodarone)
  • Ablation: this involves an electrophysiological (EP) study to identify the abnormal electrical tissue, then using radiofrequency ablation the area is burnt therefore disrupting the pathway

Our Locations

Free Parking At All Locations
Cardiology Tasmania has 5 specialist centres located in Derwent Park, Huonville, Oatland, Swansea and Rokeby. As well as our fixed locations, our cardiology specialists and consultants travel to regional and remote areas to ensure all patients have access to cardiology services regardless of where they live.
Call Us:
0439 195 660
Derwent Park
  • Northcare Health Centre, 254 Main Road, Derwent Park, TAS

  • 62728869
  • Huon Valley Health Centre, 85 Main Road, Huonville, TAS
  • 62642800
  • Midlands Multipurpose Health, 13 Church Street, Oatlands, TAS
  • 61350540
  • Swansea General Practice: 37 Wellington Street, Swansea, TAS
  • 62578205
  • Knopwood Medical Centre: 46 South Arm Road, Rokeby, TAS
  • 62471019

Your Appointment

Important information you should know

© Cardiology Tasmania. All rights reserved.
Built by FWRD Digital.