Related Experiment Video
Updated: May 5, 2026

23:33
The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
83.6K
Device-related thrombosis after transcatheter closure of atrial septal defect using the Gore Cardioform ASD occluder
Muhammad Moolla1, Hatem Linjawi1, Dylan Taylor1
1Division of Cardiology, Department of Medicine, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada.
The Journal of Invasive Cardiology
|March 12, 2024
Summary
A large secundum atrial septal defect was identified in a 60-year-old woman. This finding was confirmed using transesophageal echocardiography, a key diagnostic tool.
Area of Science:
- Cardiology
- Medical Diagnostics
Background:
- Atrial septal defects (ASDs) are congenital heart conditions.
- Secundum ASDs are the most common type, involving a hole in the wall between the heart's upper chambers.
Purpose of the Study:
- To report the diagnosis of a secundum atrial septal defect in an adult patient.
- To highlight the utility of transesophageal echocardiography in diagnosing cardiac anomalies.
Main Methods:
- Diagnostic imaging was performed using transesophageal echocardiography.
- Measurements of the atrial septal defect were recorded.
Main Results:
- A secundum atrial septal defect was diagnosed.
- The defect measured 23 x 12 mm.
- The patient was previously healthy.
Conclusions:
- Transesophageal echocardiography is effective for diagnosing secundum atrial septal defects.
- Large atrial septal defects can be identified in previously healthy adult patients.

