Related Experiment Video
Updated: Aug 6, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
A simple modification of 'David-V' aortic root reimplantation
Shinichi Takamoto1, Kan Nawata, Tetsuro Morota
1Department of Cardiothoracic Surgery, Graduate School of Medicine, University of Tokyo, Tokyo, Japan. takamoto-tho@h.u-tokyo.ac.jp
This study presents a modified David-V technique for valve-sparing aortic root reimplantation. The technique allows for precise adjustment of the aortic annulus and pseudosinus size and shape using a single Dacron graft.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Surgical Innovation
Background:
- Annuloaortic ectasia and ascending aortic aneurysms require complex surgical repair.
- Valve-sparing aortic root reimplantation is a promising approach.
- The David-V technique offers a method for aortic root reconstruction.
Purpose of the Study:
- To describe a simple modification of the David-V technique.
- To facilitate precise adjustment of the aortic annulus and pseudosinus.
- To achieve excellent pseudosinus shape with a single Dacron graft.
Main Methods:
- Modification of the standard David-V valve-sparing aortic root reimplantation technique.
- Utilizing a single Dacron graft for aortic root reconstruction.
- Enabling free adjustment of the neo-aortic annulus and pseudosinus dimensions.
Main Results:
- The modified technique allows for patient-specific tailoring of the aortic annulus and pseudosinus.
- Excellent pseudosinus shape can be achieved.
- The procedure utilizes a single Dacron graft for reconstruction.
Conclusions:
- The modified David-V technique offers a simplified and effective approach for valve-sparing aortic root reimplantation.
- This method provides enhanced control over aortic annulus and pseudosinus geometry.
- It represents a valuable advancement for treating annuloaortic ectasia and ascending aortic aneurysms.
More Related Videos
12:17Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
13:10Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
Published on: April 24, 2017