fetal atrial flutter

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

Clinical presentation

As with other tachyarrhythmias, it is often detected in the 3 trimester.

Pathology

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 ):

• mean atrial rate: 440-520 bpm
• mean ventricular rate: 200-250 bpm

Associations

• coexistence of another form of arrhythmia: present in 5-10% of cases
• structural cardiac anomalies
  • Ebstein anomaly
  • pulmonary stenosis

Complications

• development of hydrops fetalis is a serious concern

Siehe auch:

• Ebstein anomaly
• Hydrops fetalis
• fetal tachyarrhythmias
• pulmonic stenosis

und weiter:

• fetal tachyarrhythmia