Related Experiment Video
Updated: Sep 19, 2025
06:26
Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
503
Evolution of Native Aortic Valve Function following Ascending Aorta Replacement for Acute Type A Dissection.
Nicolas Everaert1, Thierry Bové2, Isabelle Claus2
1Faculty of Medicine, Ghent University, Ghent, Belgium.
Aorta (Stamford, Conn.)
|June 17, 2025
Summary
Supracoronary ascending aorta replacement (SCR) for acute type A aortic dissection (ATAAD) is a viable option for preserving aortic valve function. Preoperative aortic insufficiency and root dissection predict later valve issues, suggesting tailored surgical approaches.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Aortic Disease
Background:
- Acute type A aortic dissection (ATAAD) often requires surgical intervention involving the ascending aorta.
- The management of the aortic valve during ascending aorta replacement is a critical consideration for long-term outcomes.
- Supracoronary ascending aorta replacement (SCR) aims to address the dissection while potentially preserving the native aortic valve.
Purpose of the Study:
- To investigate the long-term functional evolution of the aortic valve after supracoronary ascending aorta replacement (SCR) in patients with acute type A aortic dissection (ATAAD).
- To identify factors predicting the development or progression of aortic insufficiency (AI) after SCR.
- To assess the need for reoperation on the aortic root in this patient cohort.
Main Methods:
- Retrospective analysis of 78 patients who underwent SCR for ATAAD between 2000 and 2021.
- Univariable analyses were performed to identify risk factors for developing AI grade ≥ 2.
- Evaluated anatomical parameters, perioperative findings, and longitudinal changes in aortic root dimensions.
Main Results:
- AI grade ≥ 2 developed in 29.4% of patients during follow-up, with cumulative incidences of 15.1% at 10 years.
- Aortic root reoperation was uncommon (4.0% within 3 years).
- Significant predictors of AI grade ≥ 2 included preoperative AI grade ≥ 2 (OR 1.46) and preoperative AI with ≥ 2 dissected sinuses (OR 2.88). Aortic root and graft diameters increased over time.
Conclusions:
- Preserving the native aortic valve during SCR for ATAAD is a feasible surgical strategy with a low rate of reoperation, particularly in patients without significant aortic root dilatation.
- Preoperative AI severity and the extent of aortic root dissection are key predictors of late AI progression.
- Consideration for valve-sparing root replacement may be warranted in patients with significant preoperative AI and extensive root dissection.
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