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Bicuspid Aortic Valve: Unlocking the Morphogenetic Puzzle.

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Bicuspid aortic valve, the most common congenital heart defect, is likely a spectrum of diseases, not a single entity. Further research is needed to understand its varied phenotypes, genetic basis, and aortopathy pathogenesis.

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Area of Science:

  • Cardiology
  • Genetics
  • Medical Science

Background:

  • Bicuspid aortic valve (BAV) is the most common congenital heart abnormality.
  • Current understanding often treats BAV as a single entity, which may be inaccurate.
  • Lack of consensus on phenotypic descriptions and classification schemes complicates BAV discussion.

Purpose of the Study:

  • To review current evidence on unresolved issues concerning bicuspid aortic valve.
  • To explore the concept of BAV as a cluster of diseases with diverse phenotypes, etiologies, and pathogenesis.
  • To highlight the need for clarity in BAV classification and understanding.

Main Methods:

  • Literature review of recent scientific publications.
  • Analysis of studies on BAV phenotypes, genetic basis, and clinical manifestations.
  • Examination of research on BAV-associated aortopathy and aneurysms.

Main Results:

  • Evidence suggests BAV encompasses various phenotypes with distinct clinical associations.
  • A genetic basis for BAV is indicated, but specific genes remain largely undescribed.
  • Pathogenesis of bicuspid aortic valve aortopathy is not yet fully understood, despite increased focus on aneurysm risk.

Conclusions:

  • BAV should be considered a spectrum of diseases rather than a single clinical entity.
  • Further research is crucial to elucidate the genetic underpinnings and pathogenic mechanisms of BAV and its associated aortopathy.
  • Standardized classification and deeper understanding of BAV phenotypes are needed for improved clinical management.