Redo mitral valve replacement using a mechanical prosthesis via a transeptal approach can be successfully performed in patients with degenerated bioprostheses.
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Guidelines for mitral prosthesis choice in ages 60-70 may warrant re-examination; Level 5 data leaves optimal selection open.
Current consensus guidelines of the American Heart Association and European Society of Cardiology, uniformly recommend either type of prosthetic mitral valve for patients aged 60 to 70 years, and mechanical prosthesis for patients less than 60 years.
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Chowdhury et al. (2021) studied this question.
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