Determinants of Radiation Exposure during EVAR

Abstract Objectives Endovascular aneurysm repair (EVAR) is an established method of aortic aneurysm repair, in favourable anatomical configurations. It does however expose patients to radiation. The study aim was to determine if the aneurysm neck morphology influenced radiation exposure. Patients an...

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Bibliographic Details
Published in:European journal of vascular and endovascular surgery 2010-09, Vol.40 (3), p.320-325
Main Authors: Badger, S.A, Jones, C, Boyd, C.S, Soong, C.V
Format: Article
Language:English
Subjects:
Aged
Aortic Aneurysm - diagnostic imaging
Aortic Aneurysm - surgery
Aortic Rupture - diagnostic imaging
Aortic Rupture - surgery
Aortography - adverse effects
Blood Vessel Prosthesis
Blood Vessel Prosthesis Implantation - instrumentation
Contrast Media
Elective Surgical Procedures
EVAR
Female
Humans
Male
Middle Aged
Northern Ireland
Patient safety
Radiation Dosage
Radiation exposure
Radiography, Interventional - adverse effects
Risk Assessment
Stents
Surgery
Time Factors
Tomography, X-Ray Computed - adverse effects
Treatment Outcome
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Summary:Abstract Objectives Endovascular aneurysm repair (EVAR) is an established method of aortic aneurysm repair, in favourable anatomical configurations. It does however expose patients to radiation. The study aim was to determine if the aneurysm neck morphology influenced radiation exposure. Patients and methods All elective and emergency EVAR patients were identified. Elective patients had a bifurcated stent-graft deployed, while emergency patients were repaired with an aorto-uni-iliac stent-graft and fem–fem crossover bypass. Proximal and distal aortic neck diameters, neck length, neck angles and sac diameter were recorded, with the radiation dose, screening time and contrast volume. The two subgroups of elective and emergency patients were compared and correlation between anatomical and radiological parameters calculated by using Pearson’s correlation coefficient. Results 320 (270 male) elective patients and 64 (55 male) emergency patients from October 1998 to October 2008 underwent EVAR. The mean proximal ( p  = 0.004) and distal ( p  = 0.01) neck diameters were smaller and mean sac diameter ( p  
ISSN:1078-5884
1532-2165
DOI:10.1016/j.ejvs.2010.05.018