Two surgical patients are presented with tricuspid valve prolapse. One
had severe isolated prolapse of the posterior leaflet at its junction
with the anterior leaflet accompanied by chordal elongation that was
successfully repaired; the other had mild prolapse of all three leafle
ts with chordal elongation. Myxomatous degeneration of the tricuspid v
alve was the suspected underlying pathologic disorder in both patients
and was histologically proven in the resected leaflet tissue of patie
nt 1.