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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

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Published on: February 26, 2013

Left atrial appendage thrombus in a term neonate with ventricular dysfunction.

Kyung-Jin Ahn¹, Eung Re Kim²

¹Pediatrics, Gachon University Gil Medical Center, Republic of Korea.

Cardiology in the Young

|March 5, 2026

Summary

Left atrial appendage thrombosis is rare in newborns. Early echocardiography is crucial for diagnosing and treating this condition, leading to rapid recovery.

Keywords:

Left atrial appendage intracardiac thrombus neonate surgical management

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Area of Science:

Pediatric Cardiology
Neonatal Medicine
Cardiovascular Surgery

Background:

Left atrial appendage thrombosis is an uncommon condition in neonates.
Nonspecific clinical findings can delay diagnosis in newborns.

Purpose of the Study:

To report a case of left atrial appendage thrombosis in a neonate.
To emphasize the importance of echocardiography in diagnosing neonatal heart failure.

Main Methods:

Case report of a term neonate with poor feeding and gallop rhythm.
Diagnostic evaluation included echocardiography.
Treatment involved surgical excision of the thrombus.

Main Results:

A large left atrial appendage thrombus and ventricular dysfunction were identified.
Surgical excision led to rapid clinical improvement.
Early echocardiographic assessment was key to diagnosis.

Conclusions:

Left atrial appendage thrombosis, though rare, should be considered in neonates with heart failure symptoms.
Prompt echocardiographic evaluation and surgical intervention can result in favorable outcomes.