Classification of tendinous chords of the tricuspid valve (adapted from Silver and colleagues8)
| Chord | Site of insertion |
|---|---|
| Leaflet chords | |
| 1. Rough zone chords | Rough zone and free margin |
| 2. Free edge chords | Free edge |
| 3. Deep chords | Rough zone |
| 4. Basal chords | Basal zone (2 mm perimeter of the annular region) |
| Interleaflet chords | |
| 1. Fan shaped chords | Commissures between the leaflets |