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Updated: Feb 10, 2026
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Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
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Continuous suture technique for aortic valve replacement in patients with small aortic annulus
Shenghua Liang1, Kan Zhou1, Peizeng Liu1
1Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China.
Journal of Thoracic Disease
|February 9, 2026
Summary
Continuous suture technique (CST) for aortic valve replacement (AVR) in patients with small aortic annulus (SAA) showed better hemodynamic performance than interrupted pledgeted suture (IPS). CST resulted in significantly lower peak aortic velocity post-surgery.
Area of Science:
- Cardiac Surgery
- Cardiovascular Diseases
- Prosthetic Heart Valves
Background:
- Small aortic annulus (SAA) presents a surgical challenge for aortic valve replacement (AVR).
- Continuous suture technique (CST) may allow larger prosthesis implantation than interrupted pledgeted suture (IPS).
Purpose of the Study:
- To compare early clinical outcomes of CST versus IPS in patients with SAA undergoing surgical AVR.
Main Methods:
- Retrospective analysis of 250 patients (99 CST, 151 IPS) with SAA undergoing surgical AVR (prosthesis size <23 mm) between 2023-2025.
- Propensity score matching was used to analyze early clinical outcomes, with postoperative peak aortic velocity as the primary endpoint.
Main Results:
- CST group showed comparable early outcomes to IPS, with no paravalvular leak. Shorter surgery and cross-clamp times were observed in the raw CST group, also significant in isolated AVR subgroup analysis.
- AVR with CST was associated with significantly lower peak aortic velocity compared to IPS (P<0.001 raw, P=0.03 matched).
- CST independently predicted reduced postoperative peak aortic velocity (coefficient -0.192, P<0.001).
Conclusions:
- CST is a viable alternative for AVR in SAA patients.
- CST demonstrated a trend toward improved hemodynamic performance compared to IPS.
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