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Updated: Aug 22, 2025

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
A case of infective endocarditis in an 8-year-old boy 3 months after transcatheter atrial septal defect closure using
Yuka Toyoshima1, Toshikatsu Tanaka1, Hironori Matsuhisa2
1Department of Cardiology, Kobe Children's Hospital, Kobe, Japan.
Abstract:
Infective endocarditis is a rare complication of atrial septal defect closure using transcatheter procedure. We report about infective endocarditis in an 8-year-old boy 3 months after transcatheter closure using a Figulla Flex II atrial septal defect occluder. Transesophageal echocardiography showed vegetation attached to the left atrium side of the device. Device removal and atrial septal defect closure were performed. The device was less endothelialized on the left than on the right atrium side. Therefore, insufficient endothelialization may cause infective endocarditis.
Insights
Infective endocarditis is a rare complication after transcatheter closure of atrial septal defects. Insufficient device endothelialization may increase the risk of infection, as seen in a pediatric case report.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Infectious Diseases
Background:
- Atrial septal defect (ASD) closure is commonly performed using transcatheter devices.
- Infective endocarditis (IE) is a serious but rare complication following device implantation.
- The Figulla Flex II occluder is one type of device used for transcatheter ASD closure.
Purpose of the Study:
- To report a case of infective endocarditis in a child following transcatheter atrial septal defect closure.
- To investigate the potential role of device endothelialization in the development of infective endocarditis.
Main Methods:
- Case report of an 8-year-old boy.
- Transcatheter closure of an atrial septal defect using a Figulla Flex II occluder.
- Transesophageal echocardiography to visualize device and vegetation.
- Surgical removal of the device and closure of the ASD.
Main Results:
- Infective endocarditis occurred 3 months after device implantation.
- Transesophageal echocardiography revealed vegetation on the left atrial side of the device.
- The device showed inadequate endothelialization on the left atrial side compared to the right.
Conclusions:
- Insufficient endothelialization of the transcatheter occluder may be a risk factor for infective endocarditis.
- Early recognition and management are crucial for patients developing IE post-device closure.
- Further research into device material and endothelialization is warranted to prevent IE.
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