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Composite aortic root replacement with a bovine pericardial valve conduit
Alan D Hilgenberg1, Bassem N Mora
1Cardiac Surgical Division, Massachusetts General Hospital, Boston, Massachusetts 02114, USA. ahilgenberg@partners.org
The Annals of Thoracic Surgery
|April 10, 2003
Summary
A new aortic root replacement technique uses a bovine pericardial valve within a Dacron graft. This intraoperative conduit construction offers tissue valve benefits for patients, especially those over 65.
Area of Science:
- Cardiovascular Surgery
- Biomaterials Engineering
- Medical Device Innovation
Background:
- Composite aortic root replacement is a complex procedure.
- Tissue valves offer advantages over mechanical valves but require specific implantation techniques.
- Existing methods may not be suitable for all anatomical variations or patient demographics.
Purpose of the Study:
- To develop an intraoperative technique for composite aortic root replacement using a tissue valve.
- To create a versatile conduit from readily available materials.
- To provide an option for patients, particularly older adults, needing aortic root repair.
Main Methods:
- Intraoperative construction of a conduit by suturing a stented bovine pericardial valve inside a Dacron tube graft.
- The graft and valve components are sourced from commercial manufacturers.
- The technique accommodates diverse anatomical challenges in aortic root aneurysm repair.
Main Results:
- The constructed conduit is quickly assembled using accessible materials.
- The conduit is easily implanted during surgery.
- The method is adaptable to various anatomical configurations encountered in aortic root repair.
Conclusions:
- This novel intraoperative conduit technique effectively integrates a tissue valve into aortic root replacement.
- The method is efficient, adaptable, and particularly beneficial for patients aged 65 and older.
- It offers a practical solution for composite aortic root repair, enhancing tissue valve utilization.