Background
The aim of the study is to determine whether performing endovascular aortic aneurysm
repair (EVAR) in a dedicated vascular hybrid operating room (OR) is associated with
a decreased patient radiation and contrast dose compared with mobile C-arm imaging
in a conventional OR.
Methods
This is a retrospective study of patients undergoing standard EVAR from 2009–2016.
“Standard EVAR” was defined as the elective EVAR performed with bifurcated graft for
infrarenal aneurysm with no iliac aneurysms. Patients were divided into 2 groups.
Group 1 included EVARs performed in conventional theater with a mobile C-arm (January
2009 to June 2012) and group 2 EVARs performed in the dedicated vascular hybrid OR
(July 2012 to December 2016). Data collected included patient demographics, aneurysm
diameter, neck length, radiation dose, screening time, and contrast use of each patient.
Results
There were 286 patients, 78 and 208 patients in group 1 and 2, respectively. There
was no difference in age (77.6 years [76.3–78.9] vs. 76.6 years [75.9–77.9], P > 0.05), body mass index (26.5 kg/m2 [25.1–28.0] vs. 27.9 kg/m2 [27.1–28.7] P > 0.05), and mean aneurysm diameter (6.48 cms [6.13–6.82] vs. 6.81 cms [6.0–7.7],
P > 0.05) between groups. Patients in group 2 received approximately half the mean
radiation dose (16,807 cGy cm2 [±11,078] vs. 8,233 cGy cm2 [±7,471], P < 0.001), shorter fluoroscopy time (36.02 min [±21.3] vs. 26.96 min [±19], P = 0.001), and less contrast use (114 mls [±44.2] vs. 158 mls [±63.9], P < 0.001).
Conclusions
Performing EVAR in a dedicated vascular Hybrid OR may be associated with a lower patient
radiation dose, shorter screening time, and less contrast use than performing EVAR
in a conventional OR.
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Article Info
Publication History
Published online: July 20, 2019
Accepted:
April 10,
2019
Received:
December 26,
2018
Identification
Copyright
© 2019 Elsevier Inc. All rights reserved.
