Fetal atrial flutter

Fetal atrial flutter is the second most common fetal tachyarrhythmia and can account for up to 30% of such cases 1,2

As with other tachyarrthymias it is often detected in the 3rd trimester.

It has a typical atrial rate of 300-600 beats per minute (bpm) and often has a variable ventricular rate due to the frequent presence of an atrioventricular (AV) conduction block (often 2:1 atrioventricular conduction 2):

  • mean atrial rate: 440-520 bpm 2,8
  • mean ventricular rate: 200-250 bpm 2,8
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Article information

rID: 13879
Tag: cases
Synonyms or Alternate Spellings:
  • Foetal atrial flutter

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