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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
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Modified composite-graft technique for aortic root replacement
Yorihiko Matsumoto1,2, Yashutosh Joshi3, Mathew Doyle3
1Department of Cardiothoracic Surgery, St Vincent's Hospital, Sydney, New South Wales, Australia. yori.matsumoto@gmail.com.
General Thoracic and Cardiovascular Surgery
|October 22, 2022
Summary
This novel aortic root graft modification allows larger valve implantation and simultaneous left ventricular outflow tract (LVOT) reconstruction. The technique is particularly beneficial for redo-aortic root replacement in patients with restricted LVOT.
Area of Science:
- Cardiovascular Surgery
- Biomaterials Science
- Medical Device Engineering
Background:
- Aortic root and left ventricular outflow tract (LVOT) replacement often requires complex surgical solutions.
- Conventional methods may limit the size of prosthetic valves that can be implanted.
- Redo-aortic root replacement presents unique challenges, especially with LVOT restrictions.
Purpose of the Study:
- To describe a novel self-assembled composite graft modification for aortic root and LVOT replacement.
- To enable the implantation of a larger bioprosthesis than typically possible.
- To facilitate simultaneous reconstruction of the LVOT during aortic root surgery.
Main Methods:
- A modified self-assembled composite graft technique was developed.
- The technique involves the use of an Inspiris Resilia aortic valve and a Gelweave Valsalva graft.
- The bioprosthesis is positioned within the sinus portion of the graft to accommodate a slightly smaller valve.
Main Results:
- The described technique allows for the implantation of a larger aortic valve.
- Simultaneous reconstruction of the LVOT is achieved.
- The method provides a suitable collar length for LVOT reconstruction.
Conclusions:
- This novel graft modification offers a viable solution for aortic root and LVOT replacement.
- It is particularly advantageous for patients undergoing redo-aortic root surgery with LVOT restrictions.
- The technique facilitates the use of larger prosthetic valves in complex cases.
