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Related Experiment Video

Updated: Jan 31, 2026

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Mini-sternotomy versus full sternotomy aortic valve replacement: a single-centre experience.

Patrícia M Castro1, Francisca A Saraiva1, Rui J Cerqueira2

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Revista Portuguesa De Cirurgia Cardio-Toracica E Vascular : Orgao Oficial Da Sociedade Portuguesa De Cirurgia Cardio-Toracica E Vascular
|January 2, 2019
PubMed
Summary

Minimally invasive aortic valve replacement (AVR) via mini-sternotomy (MS) is a safe alternative to full sternotomy (FS). This study found similar mid-term survival rates, supporting MS as a viable option for AVR.

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Area of Science:

  • Cardiovascular Surgery
  • Minimally Invasive Cardiac Surgery
  • Aortic Valve Replacement

Background:

  • Full sternotomy (FS) is the standard surgical approach for aortic valve replacement (AVR).
  • Minimally invasive techniques, such as upper mini-sternotomy (MS), have been developed to reduce surgical trauma.

Purpose of the Study:

  • To compare immediate postoperative outcomes and mid-term mortality between AVR performed via MS and FS.
  • To evaluate the safety and efficacy of MS as an alternative to FS for AVR.

Main Methods:

  • A single-centre retrospective study matched 41 patients who underwent isolated AVR via MS with 41 patients who underwent AVR via FS.
  • Coarsened exact matching was used for age, gender, body mass index, and diabetes mellitus.
  • Postoperative results were compared using statistical tests, and mid-term mortality was analyzed using Kaplan-Meier curves.

Main Results:

  • Aortic cross-clamp and cardiopulmonary bypass times were significantly longer in the MS group compared to the FS group.
  • No statistically significant differences were observed in red blood cell transfusions, mechanical ventilation, inotropic support, ICU length of stay, or new-onset atrial fibrillation.
  • Cumulative survival at 6 years was comparable between the MS (86.7%) and FS (88.5%) groups.

Conclusions:

  • Aortic valve replacement using upper mini-sternotomy (MS) is a safe alternative to the traditional full sternotomy (FS) approach.
  • The study supports MS as a viable option for AVR, demonstrating similar mid-term survival outcomes.