Aims
This study sought to investigate patient and operator radiation dose in patients undergoing
percutaneous coronary intervention (PCI) and the impact of body mass index (BMI) on
patient and operator dose.
Methods
In patients undergoing PCI, radiation dose parameters, baseline characteristics and
procedural data were collected in a tertiary centre for 3.5 years. Operators wore
real time dosimeters. Patients were grouped by BMI. Dose area product (DAP) and operator
radiation dose were compared across patient BMI categories. Multivariable analysis
was performed to investigate the impact of patient BMI and other procedural variables
on patient and operator dose.
Results
2,043 patients underwent 2,197 PCI procedures. Each five-unit increase in BMI increased
patient dose (expressed as DAP) by an average 31% (95% CI: 29–33%) and operator dose
by 27% (95% CI: 20–33%). Patient dose was 2.3 times higher and operator dose was 2.4
times higher in patients with a BMI>40 than for normal BMI patients. Multivariable
analysis indicated that there were many procedural factors that were predictors for
increasing operator dose and patient dose but that patient BMI was a major contributor
for both operator dose and patient dose.
Conclusion
Increasing BMI increases the DAP and operator dose for PCI procedures and BMI is demonstrated
to be a major factor that contributes to both patient and operator radiation dose.
Keywords
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Article info
Publication history
Published online: October 12, 2021
Accepted:
August 23,
2021
Received in revised form:
August 18,
2021
Received:
January 21,
2021
Identification
Copyright
Crown Copyright © 2021 Published by Elsevier B.V. on behalf of Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). All rights reserved.
