Valve Replacement
Valve Replacement - Related Videos
12:17
Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Cited by 4 •
2017
Full-root aortic valve replacement by stentless aortic xenograft is a viable option in patients with small aortic roots. We describe, a technique for the full-root implantation of stentless aortic xenografts, with emphasis on the management of the proximal suture line and coronary anastomoses, and discuss its limitations and alternative options.
14:14
Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
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2017
Valve-sparing aortic root replacement has the advantage of preserving the patient's own aortic valve. The complexity of the reported techniques to date restricts their use to a limited number of cardiac surgeons. This protocol describes step-by-step a standardized technique reproducible by a greater number of cardiac surgeons.
09:57
Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement
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Cited by 5 •
2022
This study assessed a new methodology with a straightened model generated from the four-dimensional cardiac computed tomography sequence to obtain the desired measurements for valve sizing in the application of transcatheter pulmonary valve replacement.
07:46
Automatic Surgery in Transcatheter Aortic Valve Replacement Using Augmented Reality
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Cited by 2 •
2024
This article presents the design and implementation of an automatic surgery module based on augmented reality (AR)- based 3D reconstruction. The system enables remote surgery by allowing surgeons to inspect reconstructed features and replicate surgical hand movements as if they were performing the surgery in close proximity.
05:31
Transcatheter Pulmonary Valve Replacement from Autologous Pericardium with a Self-Expandable Nitinol Stent in an Adult Sheep Model
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Cited by 4 •
2022
This study demonstrates the feasibility and safety of developing an autologous pulmonary valve for implantation at the native pulmonary valve position by using a self-expandable Nitinol stent in an adult sheep model. This is a step toward developing transcatheter pulmonary valve replacement for patients with right ventricular outflow tract dysfunction.
FAQs
Mechanical and bioprosthetic prostheses represent two replacement options, and the choice is not determined by valve substitution alone. Clinicians consider valve anatomy, disease severity, and patient factors when selecting between them. This individualized decision links the prosthesis to the patient’s clinical circumstances rather than applying one valve type universally.
A narrowed valve can obstruct forward flow, whereas an inadequately closing valve permits regurgitation, or backward flow. Replacement addresses these different sources of inefficient circulation by restoring more effective one-way movement through the heart. The intended clinical effects are improved cardiac output, symptom relief, and reduced risk of progressive heart failure.
Open-heart treatment may require removing the damaged valve and securing a replacement. In a catheter-based approach, a collapsible valve is positioned within the native valve instead. Clinical evaluation guides this procedural choice according to valve anatomy, disease severity, and patient factors, making the approach part of individualized treatment planning.
Treatment selection depends on the relationship between the valve problem and the patient’s clinical situation. Evaluation considers valve anatomy, disease severity, and patient factors, while also helping determine the valve type and procedural approach. These assessments support a plan aimed at improving flow, relieving symptoms, and limiting progression toward heart failure.
In open-heart treatment, the damaged valve is removed and a prosthetic replacement is secured in its place. The replacement may be mechanical or bioprosthetic, with the choice guided by clinical evaluation. This sequence directly addresses the diseased valve and is intended to reestablish efficient, one-way blood flow through the heart.
Follow-up focuses on the function of the replacement valve and on potential complications. Monitoring helps determine whether treatment is supporting efficient blood flow and achieving its intended clinical effects, such as improved cardiac output and symptom relief. Continued assessment is therefore important after either an open-heart or catheter-based procedure.