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Related Experiment Video

Updated: Jul 23, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Published on: May 21, 2017

Aortic valve replacement in small patients.

Y Hisata¹, S Yokose², S Hazama²

¹Division of Cardiovascular Surgery, Oita Prefectural Hospital, 476 Bunyo, Oita City, Oita 870-8511, Japan.

Asian Journal of Surgery

|October 17, 2017

Summary

Aortic valve replacement (AVR) outcomes in smaller patients were evaluated. Despite smaller implanted valves and more bioprosthetic use in small patients, short- and mid-term results were favorable with no difference in mortality.

Keywords:

Aortic valve replacement BSA Left ventricular mass index Prosthesis-patient mismatch

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Technique and Patient Selection Criteria of Right Anterior Mini-Thoracotomy for Minimal Access Aortic Valve Replacement

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Published on: March 26, 2018

Area of Science:

Cardiology
Cardiac Surgery
Biomedical Engineering

Background:

Aortic valve replacement (AVR) is a common procedure, but outcomes in smaller patients, often observed in Asian populations, are not well-established.
Understanding the implications of body size on AVR outcomes is crucial for personalized treatment strategies.

Purpose of the Study:

To compare short- and mid-term outcomes of AVR in small versus non-small patients.
To investigate differences in baseline characteristics, procedural variables, and post-procedural outcomes between these groups.

Main Methods:

Retrospective analysis of 173 patients undergoing AVR, divided into small (body surface area ≤1.6 m² in men, ≤1.5 m² in women) and non-small groups.
Comparison of demographic data, implanted valve size, prosthesis type, effective orifice area index, patient-prosthesis mismatch, hospitalization duration, 30-day mortality, survival rates, and valve-related complications.

Main Results:

Small patients were older and had a higher proportion of women.
Significantly smaller valves and a higher use of bioprosthetic valves were observed in the small group.
No significant differences were found in effective orifice area index, patient-prosthesis mismatch, hospitalization duration, 30-day mortality, survival rates, or valve-related complications.

Conclusions:

Despite demographic differences and smaller implanted valves in the small patient group, AVR demonstrated safe and favorable short- and mid-term outcomes.
Patient-prosthesis mismatch and mortality rates were comparable between small and non-small patients, suggesting AVR is effective across different body sizes.