Heart Block

Synonyms: Ventricular standstill, sinus arrest

Basic overview

The heart is stimulated to contract via an internal electrical pathway. An impulse is normally generated from the sinoatrial node (the hearts internal ‘pacemaker’) and travels from the atria (tops chambers) to the ventricles (bottom chambers).

An interruption in the electrical pathway may cause the heart to miss beats, if several beats are missed in a row, the frequency of heart contraction may be so low that the brain does not get enough blood supply and the patient may blackout – this is usually quite sudden and can even occur whilst driving


Dizziness, excess fatigue and black-outs are the most common symptoms

Occasionally, heart block may be identified incidentally, such as during an ECG or Holter recording


Stopping the offending medications (if relevant)

Insertion of a pacemaker

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

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Important information you should know

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