Valvular & structural heart diseaseCohort study
Outcomes of Supra-Annular vs Intra-Annular Self-Expanding Valves in Valve-In-Valve Transcatheter Aortic Valve Replacement
- Registry-based cohort study
- propensity score adjustment
- multivariable logistic regression
Findings consistent after propensity score adjustment and multivariable logistic regression
Authors' conclusion
Both SASEV and IASEV provide favorable and similar hemodynamic and clinical outcomes following ViV-TAVR.
Study context
- Population
- Patients undergoing Valve-in-valve Transcatheter Aortic Valve Replacement (ViV-TAVR) in the Australian Cardiovascular Outcomes Registry (ACOR)
- Participants
- 683 patients
- Exposure
- SASEV vs IASEV in ViV-TAVR
- SASEVn = 566reference
- IASEVn = 117
- Outcome
- Echocardiographic (gradients, LVEF) and clinical outcomes (MACCE per VARC criteria)
- Follow-up
- Postprocedure and 12 months
Main finding
As reported in the abstract
Postprocedure echocardiographic findings · postprocedure
| Group | Dimensionless Performance Index |
|---|---|
| SASEV | 0.4 |
| IASEV | 0.5 |
- SASEV vs IASEV: P < 0.001 — Dimensionless Performance Index
- Mean gradients 14.9 mm Hg vs 13.3 mm Hg
- P = 0.070
- Peak atrioventricular velocities 2.5 m/s vs 2.4 m/s
- P = 0.073
Observational data: associations, not effects.
Further findings
MACCE · 12 months · not statistically significant
P = 0.129
Stroke · 12 months · not statistically significant
P = 0.058
Mortality · 12 months
- No significant difference
Safety
Bleeding · 12 months
- No significant difference
Original publication
Outcomes of Supra-Annular vs Intra-Annular Self-Expanding Valves in Valve-In-Valve Transcatheter Aortic Valve Replacement. JACC Cardiovasc Interv. Published 24 August 2026. doi:10.1016/j.jcin.2026.06.022
Summarised from the published abstract; every number is checked against it