Valvular & structural heart disease
Novel Real-Time Fluoroscopic Assessment Method of Transcatheter Heart Valve (THV) Expansion Following Balloon-Expandable TAVR
Authors' conclusion
The commissural post height method is a novel real-time fluoroscopic tool that has the potential to assess THV expansion and guide further optimization after balloon-expandable transcatheter aortic valve replacement.
Study context
- Population
- Patients who underwent TAVR with a SAPIEN 3 (S3) THV with documented 3 cusp and cusp overlap views and post-implant computed tomographypatients included
- Participants
- 40 patients
- Comparison
- The correlation between the 2 methods and computed tomography was evaluated.
- Outcome
- Commissural post height on the bench
Main finding
As reported in the abstract
20 mm S3
3.3 mm
23 mm S3
3.5 mm
26 mm S3
4.0 mm
29 mm S3
4.5 mm
Further findings
| Outcome | Commissural post height method | Pigtail method |
|---|---|---|
| Pearson correlation coefficient (r) with computed tomography for THV diameter (inflow, mid-portion, outflow) | ||
| Inflow | 0.98 | 0.82 |
| Mid-portion | 0.97 | 0.81 |
| Outflow | 0.98 | 0.78 |
Correlation across THV sizes and views
- Unlike the pigtail method, the correlation between the commissural post height method and computed tomography remained strong across all THV sizes and in both the 3 cusp and cusp overlap views
Original publication
Novel Real-Time Fluoroscopic Assessment Method of THV Expansion Following Balloon-Expandable TAVR. Circ Cardiovasc Interv. Published 24 January 2025. doi:10.
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