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. 2023 Feb 23;10:1080101. doi: 10.3389/fcvm.2023.1080101

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Copyright © 2023 Blusztein and Hahn.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Tricuspid Valve Nomenclature Classification Scheme. (Left) A proposed tricuspid valve nomenclature classification scheme is shown. The anterior papillary muscle is indicated as a blue circle and defines the separation of the anterior from the posterior leaflets. (A) Type I: 3-leaflet configuration. (B) Type II: 2-leaflet configuration. (C–E) Type III: 4-leaflet configurations. (F) Type IV: 5-leaflet configuration. (Right) Incidence of each morphology in the present study of 579 patients. Adapted version from Dr. Hahn with permission.