🫀 Mirza's Cardiology Notes

Tricuspid Valve

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  • The TV is the largest and most apically positioned valve and its functional anatomy, similar to the MV, can be divided into four components:1
    • fibrous annulus
    • three leaflets
    • papillary muscles
    • chordal attachments
  • A normal annulus is triangular as well as saddle shaped. When functional dilatation occurs, the annulus becomes more circular and planar, dilating in the septal to lateral direction.1
  • The TV is composed of 3 leaflets: the anterior, septal, and posterior leaflets, using standard nomenclature. However, pathologic assessment of the TV demonstrates a heterogeneous number of leaflets ranging from 2 to 5 or more leaflets. 2

Footnotes

  1. https://www.asecho.org/wp-content/uploads/2017/04/2017VavularRegurgitationGuideline.pdf ↩ ↩2

  2. Welle GA, Hahn RT, Lindenfeld J, Lin G, Nkomo VT, Hausleiter J, Lurz PC, Pislaru SV, Davidson CJ, Eleid MF. New Approaches to Assessment and Management of Tricuspid Regurgitation Before Intervention. JACC Cardiovasc Interv. 2024 Apr 8;17(7):837-858. doi: 10.1016/j.jcin.2024.02.034. PMID: 38599687. ↩

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