We have located links that may give you full text access.
Use of Fluoroscopy and Potential Long-Term Radiation Effects on Cataract Formation.
Journal of Endourology 2017 September
INTRODUCTION: The lens of the eye is extremely susceptible to radiation and long-term exposure can induce cataract formation. Our objective was to explore the risk of cataract formation for urologists at our institution.
METHODS: A retrospective review of a multisurgeon database of fluoroscopic cases between October 2013 to December 2014 was queried. Procedures were performed by different subspecialties and ranged from stent insertion/ureteroscopy to percutaneous nephrolithotomy. Fluoroscopic parameters were recorded from all cases and the radiation dosimetry was calculated through methods described by the National Council on Radiation Protection. The data were extrapolated to determine the risk of cataract formation. The technical specifications of the GE OEC 990 mobile C-arm unit were used for calculations.
RESULTS: A total of 780 cases were analyzed, of which 182 were endourology cases. Average fluoroscopic time was 34.86 seconds per case. Average tube potential and current were 86.84 kV and 1.95 mA, respectively. Pediatric urologists utilized fluoroscopy the least, 11.84 seconds per case (p = 0.0022). Endourology trained faculty had fluoroscopy exposure of 68.35 seconds per case (p < 0.0001), whereas others were exposed 26.24 seconds per case (p < 0.0001). For the highest exposed urologist, the estimated dose to the eyes was 5.64 μGy per case. Total estimated cumulative dose over the study timeframe was 997.58 μGy, or 748.19 μGy per year.
CONCLUSIONS: The defined threshold in the absorbed dose for cataract formation is 0.5 Gy. Resident exposure was the highest, at 11% of the annual limit, and the most exposed urologists had an estimated dose of 5% of the annual limit. At current exposure levels, it would not be feasible to reach the stated safety limit during 50 to 60 years of practice. However, changing exposure guidelines could result in stricter safety limits.
METHODS: A retrospective review of a multisurgeon database of fluoroscopic cases between October 2013 to December 2014 was queried. Procedures were performed by different subspecialties and ranged from stent insertion/ureteroscopy to percutaneous nephrolithotomy. Fluoroscopic parameters were recorded from all cases and the radiation dosimetry was calculated through methods described by the National Council on Radiation Protection. The data were extrapolated to determine the risk of cataract formation. The technical specifications of the GE OEC 990 mobile C-arm unit were used for calculations.
RESULTS: A total of 780 cases were analyzed, of which 182 were endourology cases. Average fluoroscopic time was 34.86 seconds per case. Average tube potential and current were 86.84 kV and 1.95 mA, respectively. Pediatric urologists utilized fluoroscopy the least, 11.84 seconds per case (p = 0.0022). Endourology trained faculty had fluoroscopy exposure of 68.35 seconds per case (p < 0.0001), whereas others were exposed 26.24 seconds per case (p < 0.0001). For the highest exposed urologist, the estimated dose to the eyes was 5.64 μGy per case. Total estimated cumulative dose over the study timeframe was 997.58 μGy, or 748.19 μGy per year.
CONCLUSIONS: The defined threshold in the absorbed dose for cataract formation is 0.5 Gy. Resident exposure was the highest, at 11% of the annual limit, and the most exposed urologists had an estimated dose of 5% of the annual limit. At current exposure levels, it would not be feasible to reach the stated safety limit during 50 to 60 years of practice. However, changing exposure guidelines could result in stricter safety limits.
Full text links
Related Resources
Trending Papers
Heart failure with preserved ejection fraction: diagnosis, risk assessment, and treatment.Clinical Research in Cardiology : Official Journal of the German Cardiac Society 2024 April 12
Proximal versus distal diuretics in congestive heart failure.Nephrology, Dialysis, Transplantation 2024 Februrary 30
Efficacy and safety of pharmacotherapy in chronic insomnia: A review of clinical guidelines and case reports.Mental Health Clinician 2023 October
World Health Organization and International Consensus Classification of eosinophilic disorders: 2024 update on diagnosis, risk stratification, and management.American Journal of Hematology 2024 March 30
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app