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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
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Cor Triatriatum Sinister With a Patent Foramen Ovale Presenting With Embolic Stroke
Ryo Sakuma1, Mary Carter Denny2, Yue-Hin Loke3
1US Naval Hospital Yokosuka, Kanagawa, Japan.
JACC. Case Reports
|June 6, 2025
Summary
Cor triatriatum sinister (CTS) is a rare heart condition that can cause embolic stroke. This case highlights the need for further research into CTS mechanisms and optimal treatments to prevent recurrent strokes.
Area of Science:
- Cardiology
- Neurology
- Medical Imaging
Background:
- Cor triatriatum sinister (CTS) is a congenital heart anomaly where the left atrium is divided into two compartments by a membrane.
- CTS is increasingly recognized as a potential risk factor for embolic stroke, though the precise mechanisms remain unclear.
Purpose of the Study:
- To present a case of embolic stroke in a young patient with an unobstructed Cor triatriatum sinister and patent foramen ovale.
- To discuss the association between CTS and embolic stroke and highlight the need for further investigation.
Main Methods:
- Echocardiogram and cardiac computed tomography were used for diagnosis.
- The patient underwent patent foramen ovale device closure and anticoagulation therapy.
Main Results:
- A 21-year-old woman presented with an embolic stroke.
- The diagnostic workup revealed an unobstructed Cor triatriatum sinister and a patent foramen ovale.
Conclusions:
- The mechanism by which CTS contributes to embolic stroke requires further elucidation.
- Optimal therapeutic strategies to minimize recurrent stroke risk in CTS patients need to be established through additional research.
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