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Updated: Jan 21, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
Aortic Root Dynamics in Sleeve Aortic Sparing Procedure: Echocardiographic and Computational Studies
Giordano Tasca1, Matteo Selmi2, Beatrice Riva3
1Cardiovascular Department, Operative Units of Cardiac Surgery, Ospedale "A. Manzoni" ASST-Lecco, Lecco, Italy; Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milano, Italy.
The Sleeve procedure partially preserves aortic root dynamics and leaflet motion, potentially improving long-term valve durability. This technique maintains Valsalva sinus shape and dynamics for near-normal valve function.
Area of Science:
- Cardiovascular Surgery
- Biomedical Engineering
- Medical Imaging
Background:
- The Sleeve procedure aims to preserve aortic root (AR) dynamics and leaflet kinematics.
- Maintaining the leaflets-sinus unit is hypothesized to limit leaflet tension and improve AR function.
Purpose of the Study:
- To test the hypothesis that the Sleeve procedure preserves AR dynamics and leaflet kinematics.
- To assess the impact of the Sleeve procedure on the mechanical behavior of the aortic root.
Main Methods:
- Transthoracic echocardiography in 10 Sleeve procedure patients and 10 controls.
- Finite Element Method (FEM) computational modeling to analyze AR and leaflet dynamics.
Main Results:
- AR expansion was partially preserved in Sleeve patients compared to controls (P=0.038).
- Sinotubular junction dynamics were significantly preserved (P=0.003).
- Aortic valve leaflet kinematics showed no significant differences between groups.
Conclusions:
- The Sleeve procedure preserves AR distensibility and leaflet kinematics, supporting near-normal valve opening/closing.
- Maintaining Valsalva sinus shape and dynamics is key to functional preservation.
- Long-term valve durability benefits require further investigation.
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