Key result
The use of a 3D printed model for complex left atrial appendage closure in a 61-year-old woman guided prosthesis selection and device sizing, reducing procedure time and complications.
Why the study?
Left atrial appendage closure has emerged as an alternative to oral anticoagulation for stroke prevention in atrial fibrillation, but anatomical complexity can present procedural challenges.
Does 3D printing system simulation improve device selection and procedure outcomes in complex LAA closure for a patient with a mechanical mitral prosthesis?
Case Report (n=1)
Does 3D printing system simulation improve device selection and procedure outcomes in complex LAA closure for a patient with a mechanical mitral prosthesis?
3D printing simulation can effectively guide device selection and sizing for complex left atrial appendage closure in patients with challenging anatomy, such as those with a mechanical mitral prosthesis.
Supports 3D printing for device sizing in select complex LAAc cases; hypothesis-generating and should not yet change practice.
Background: Left atrial appendage (LAA) closure (LAAc) has emerged as a safe and effective alternative to oral anticoagulation (OAC) for stroke prevention in patients with atrial fibrillation (AF) and contraindications to OAC. Case summary: A 61-year-old woman with permanent AF and a history of mitral surgery replacement with mechanical prosthesis was referred to our cardiology department to undergo LAAc. The preoperative computed tomography (CT) revealed that the ostium of the LAA was close to the mitral prosthesis ring. As a result of the difficult LAA morphology, a CT image-based virtual model was created, then a 3D printing model was prepared in our laboratory, and procedure simulation was performed with the two different LAA occlusion devices (plug- vs. pacifier-like models) to see which one was more suitable for the patient anatomy. Discussion: In this case of complex LAAc in a patient with mechanical prosthetic mitral valve, the use of a 3D printed model has guided prosthesis selection and device sizing reducing procedure time and complications.
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Scajola et al. (2024) conducted a case report in Atrial fibrillation (n=1). 3D printing system simulation was evaluated. The use of a 3D printed model for complex left atrial appendage closure in a 61-year-old woman guided prosthesis selection and device sizing, reducing procedure time and complications.
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