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Related Experiment Videos

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
PubMed
Summary
This summary is machine-generated.

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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.

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.
Keywords:
Aortic valve replacementBSALeft ventricular mass indexProsthesis-patient mismatch

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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.