Evaluation and Management of Recurrent Atrial Flutter in Neonates

Area of Science:

• Neonatal cardiology
• Pediatric electrophysiology

Background:

• Fetal tachyarrhythmias affect <0.1% of pregnancies, with atrial flutter comprising one-third of cases.
• Neonatal atrial flutter is usually isolated, but recurrent cases are infrequently described and may link to various conditions.
• Potential associations include maternal diabetes, congenital heart disease, and genetic syndromes.

Purpose of the Study:

• To investigate recurrent atrial flutter in neonates.
• To identify triggers and underlying substrates guiding individualized therapy.
• To evaluate the role of antiarrhythmic medication in managing recurrent neonatal atrial flutter.

Main Methods:

• Retrospective chart review at a single institution.
• Analysis of four neonates diagnosed with recurrent atrial flutter.
• Correlation of clinical findings with treatment strategies and outcomes.

Main Results:

• Four neonates with recurrent atrial flutter were identified.
• Each case was associated with either a correctable trigger or an underlying substrate.
• Antiarrhythmic medication was necessary when no clear trigger was identified.

Conclusions:

• Recognizing potential triggers for recurrent neonatal atrial flutter is crucial.
• Individualized therapy based on identified triggers or substrates improves management.
• Antiarrhythmic agents should be considered when appropriate for recurrent neonatal atrial flutter.