Comparison of radiation dose administered during endovascular aneurysm repair under radiologist supervision versus the surgeona case control study

Introduction: The use of endovascular aneurysm repair (EVAR) versus open repair has increased significantly in recent times. As a result, patients and operating theatre staff are exposed to increased radiation dose. Radiation dose administered can have a significant impact on the patient and operating theatre staff. We conducted a casecontrol study in Cambridge University Hospital (CUH) and University Hospital Limerick (UHL) comparing radiation dose administered during EVAR. In CUH, radiation dose administered during EVAR is radiologist supervised, whereas in UHL the surgeon administers the radiation dose. Methods: Electronic databases were established in CUH and UHL. Using a ratio of 2:1 (CUH: UHL) we compared the radiation dose effects on patients (n = 129) in the two different hospital settings. We used endovascular aneurysm risk assessment (ERA) scores to reduce heterogeneity amongst patients. Radiation dose is measured in cGy cm2 . Results: In UHL, the surgeon performed EVAR median dose is 7, 950 cGy cm2 . In CUH, the radiologist supervised EVAR median dose is 15, 284 cGy cm2 (p = 0.0004). Conclusion: Radiation dose administered during EVAR can have deleterious effects on patients and operating staff. Using CUH and UHL, we have compared radiation dose administered during EVAR by two different groups, namely radiologists and surgeons, respectively. Our study shows that the median radiation dose given to patients in CUH during radiologist supervised EVAR is higher than the median radiation dose given by the surgeon during EVAR in UHL. A further prospective study is required in order to elicit patient and operating theatre staff outcomes as a result of differences in median radiation dose. Conflict of interest: No conflict of interest to declare Disclosures: No disclosures to declare.