All::Cardiovascular System::Diseases::Atrial flutter

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What is Atrial flutter?

a form of supraventricular tachycardia characterised by a succession of rapid atrial depolarisation waves

Atrial flutter

What are the ECG findings in atrial flutter?

  • 'sawtooth' appearance
  • as the underlying atrial rate is often around 300/min the ventricular or heart rate is dependent on the degree of AV block. For example if there is 2:1 block the ventricular rate will be 150/min

Atrial flutter

What's the management of Atrial flutter?

  • is similar to that of atrial fibrillation although medication may be less effective
  • atrial flutter is more sensitive to cardioversion however so lower energy levels may be used
  • radiofrequency ablation of the tricuspid valve isthmus is curative for most patients

Atrial flutter