Cardiothoracic & vascular anesthesia
Tricuspid Annular Geometry as a Marker of Right Ventricular Function and Remodeling
Authors' conclusion
Reduced tricuspid annular dynamism and increased leaflet tenting are associated with impaired RV-PA coupling.
Study context
- Population
- Adults undergoing cardiac surgery with CPB, with intraoperative 3D TOE and clinically indicated pulmonary artery (PA) catheterization
- Participants
- 53 adults
- Exposure
- Impaired vs preserved RV-PA coupling
- Impaired couplingn = 17
- Outcome
- Association of dynamic 3D tricuspid valve indices with RV-PA coupling (Ees/Ea, single-beat pressure-volume methods)
Methodological detailssingle-centre
- Single-centre
Main finding
As reported in the abstract
Annulus area change
Impaired coupling
11.9%
mean · SD 5.2%
Preserved coupling
15.8%
mean · SD 5.9%
P = 0.025
Observational data: associations, not effects.
Further findings
BSA-indexed tenting volume
P = 0.044
Correlation with Ees/elastance (Ea)
- Annulus area change, positive correlation (R²; p < 0.001)
- 0.96
- Indexed tenting volume, inverse correlation (R²; p < 0.001)
- 0.95
Discrimination of impaired coupling
- Annulus area change <11% and indexed tenting volume >0.7118 mL/m² identified impaired coupling with moderate discrimination
Original publication
Tricuspid Annular Geometry as a Marker of Right Ventricular Function and Remodeling. J Cardiothorac Vasc Anesth. Published 21 July 2026. doi:10.
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