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Related Experiment Video

Updated: Jul 25, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Published on: February 8, 2022

Asymptomatic giant right atrial aneurysm.

R Chatrath¹, O Turek, E S Quivers

¹The Division of Pediatric Cardiology, Mayo Clinic, Rochester, Minnesota 55905, USA.

Texas Heart Institute Journal

|January 5, 2002

Summary

A giant right atrial aneurysm was incidentally discovered in an asymptomatic child. Surgical intervention successfully treated the condition, preventing potential complications like thrombus formation and arrhythmias.

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Area of Science:

Cardiology
Pediatric Cardiology
Cardiac Surgery

Background:

Congenital heart anomalies can present incidentally in asymptomatic children.
Giant right atrial aneurysms are rare cardiac malformations requiring careful evaluation and management.
Early detection and intervention are crucial for preventing serious cardiovascular complications.

Observation:

A 5-year-old asymptomatic boy presented with incidental gross cardiomegaly on chest radiography.
Echocardiography revealed a giant right atrial aneurysm as the cause of cardiomegaly.
The aneurysm presented as a paper-thin walled dilatation with focal endocardial fibrosis.

Findings:

The patient underwent successful surgical reduction of the right atrium.
Surgical procedures included closure of an atrial septal defect and tricuspid valve repair.
Histopathological examination of resected tissue confirmed idiopathic dilatation of the right atrium.

Implications:

Surgical management effectively addressed the giant right atrial aneurysm.
Intervention aimed to prevent thrombus formation, paradoxical embolism, and atrial arrhythmias.
This case highlights the importance of thorough cardiac evaluation for incidental findings like cardiomegaly in children.