Related Experiment Video
Updated: Feb 13, 2026

Chronic Ovine Model of Right Ventricular Failure and Functional Tricuspid Regurgitation
Published on: March 17, 2023
Full Orifice Patching without Annuloplasty for Severe Functional Tricuspid Valve Regurgitation
Antonio Maria Calafiore1, Carlo Maria De Filippo1, Antonio Totaro1
1Department of Cardiovascular Diseases, John Paul II Foundation, Campobasso, Italy.
Abstract:
Surgical treatment of severe functional tricuspid regurgitation associated with dilated right ventricle and increased chordal tethering (>8 mm) is challenging. We designed a technique where the anterior and posterior leaflets are detached from 50% of the annulus and a patch as large as the tricuspid orifice is sewn to augment the leaflets' tissue to force the coaptation with the septal leaflet. Annuloplasty is not performed, as it can only increase the chordal tethering, reducing the benefit of tissue augmentation. Early and midterm results in a subgroup of patients with unfavorable anatomical aspects are encouraging.
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