Valvular & structural heart diseaseCohort study
Institutional Variation in Patient Radiation Doses During Transcatheter Valve Interventions
- Retrospective registry study
- multicentre
- statewide registry
- Bayesian random effects modeling
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 participants
- Outcome
- Institutional variability in procedural air kerma (AK ≥2 Gy)
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. JACC Cardiovasc Interv. Published 23 October 2024. doi:10.1016/j.jcin.2024.08.048
Summarised from the published abstract; every number is checked against it