Key result
Transfemoral TAVR shows higher radiation for primary versus secondary operators, worsened by obesity and complications.
Why the study?
The level of radiation exposure received by operators performing TAVR is not well investigated.
What is the radiation exposure to primary and secondary operators during transfemoral TAVR, and what factors increase it?
Observational (n=140)
What is the radiation exposure to primary and secondary operators during transfemoral TAVR, and what factors increase it?
Transfemoral TAVR exposes operators to modest radiation, with primary operators receiving significantly higher doses, exacerbated by patient obesity, complications, and ad hoc PCI.
Answers are grounded in this paper and cite their sources.
Primary TAVR operators may require targeted monitoring in obese or complicated cases; leaves open prospective trials on cumulative risks and shielding.
Background: The level of radiation exposure received by operators performing transcatheter aortic valve replacement (TAVR) is not well investigated. The aim of this study is to measure the amount of radiation received by operators performing transfemoral TAVR and to identify various patient and procedural characteristics associated with increased radiation exposure. Methods: Primary (operator 1) and secondary (operator 2) operators' equivalent radiation doses in micro Sieverts (µSv) were calculated prospectively using real-time radiation dosimeters for a total of 140 consecutive transfemoral TAVRs. Corresponding eye and thorax radiation exposures between the operators were compared. Associations between various patient and procedural characteristics and the radiation exposure were tested using the t-test and Wilcoxon Mann-Whitney rank-sum test with Monte Carlo estimation. Multivariable regression analysis was also conducted. On multivariable analysis, patient obesity and intraprocedural complications were associated with higher radiation exposure to both operators. Ad hoc percutaneous coronary intervention led to excessive radiation exposure to the secondary operator. Conclusions: Transfemoral TAVR is associated with a modest amount of radiation exposure to operators and is significantly higher for the primary operator than for the secondary operator.
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Goel et al. (2022) conducted an observational in Transfemoral transcatheter aortic valve replacement (n=140). Transfemoral TAVR was evaluated on Operator equivalent radiation doses in micro Sieverts (µSv). In 140 transfemoral TAVR procedures, radiation exposure was modest but significantly higher for the primary operator than the secondary operator, and increased by patient obesity and complications.
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