Atrial Flutter with Variable Block | Bradyarrhythmias - MedSchool
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Atrial flutter is typically a regular, narrow complex tachycardia with 2:1 or even higher levels of AV block. In some patients the AV block is variable; this may be either idiopathic or in the context of complete heart block.
 

Atrial Flutter with Variable Block

 
 
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Overview

  • Atrial flutter is typically a regular, narrow complex tachycardia with 2:1 or even higher levels of AV block. In some patients the AV block is variable; this may be either idiopathic or in the context of complete heart block.
    • Look For

    • Irregular rhythm
    • Saw-toothed baseline ‘flutter’ waves at ~300bpm
    • Variable atrioventricular block (inconsistent number of flutter waves between QRS complexes)
    •  
Last updated on December 31st, 2018
 
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Adan V, Crown LA. Diagnosis and treatment of sick sinus syndrome. American family physician. 2003 Apr;67(8):1725-32.
 Mangrum JM, DiMarco JP. The evaluation and management of bradycardia. New England Journal of Medicine. 2000 Mar 9;342(10):703-9.
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