Valvular & structural heart disease
Institutional Variation in Patient Radiation Doses During Transcatheter Valve Interventions: A Statewide Experience
Authors' conclusion
In a large, multicenter state-wide registry, there is wide institutional variability in patient-level radiation doses during transcatheter valve interventions, with the performing hospital having a higher odds of an AK ≥2 Gy than any patient or procedural factors.
Study context
- Population
- Transcatheter edge-to-edge mitral repair, transcatheter mitral valve replacement and TAVR procedures with air kerma recorded, statewide registry, 2020–2022procedures, 30 hospitals
- Participants
- 9,446 procedures
- Outcome
- Institutional variability in procedural air kerma (AK ≥2 Gy)
Methodological detailsmulticentre, statewide registry, Bayesian random effects modeling
- Multicentre
- Statewide registry
- Bayesian random effects modeling
Main finding
As reported in the abstract
Procedural AK
Median (Q1-Q3) procedural air kerma (AK)
0.592 Gy
0.348–0.989 Gy
AK ≥2 Gy
533 cases
5.6%
Institutional frequency of AK ≥2 Gy
0.0% to 29.5%
Hospital median OR for AK ≥2 Gy (95% CrI 2.52-16.66); hospital more strongly associated than any patient or procedural factor
3.54
Observational data: associations, not effects.
Original publication
Institutional Variation in Patient Radiation Doses During Transcatheter Valve Interventions: A Statewide Experience. JACC Cardiovasc Interv. Published 23 October 2024. doi:10.
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