Document Detail

Analysis of radiation exposure during endovascular aneurysm repair.
MedLine Citation:
PMID:  23025933     Owner:  NLM     Status:  In-Data-Review    
Endovascular aneurysm repair (EVAR) is now the preferred procedure for abdominal aortic aneurysm repair. As a result of the need for fluoroscopy during EVAR, radiation exposure is a potential hazard. We studied the quantity of radiation delivered during EVAR to identify risks for excessive exposure. Fluoroscopy time, contrast volume used, and procedural details were recorded prospectively during EVARs. Using data collected from similar EVARs, an equation was derived to calculate approximate dose-area product (DAP) from fluoroscopy time. DAP values were then compared between procedures in which a relevant postdeployment procedure (PDP) was necessary intraoperatively with those without. Clinical data on 17 patients were collected. The mean age of patients was 68 (±9) years. Fluoroscopy times and approximate DAP values were found to be significantly higher in the seven patients with a PDP compared with the 10 patients without an intraoperative PDP (31.2 [±9.6] vs 22.7 [±6.0] minutes, P = 0.033 and 537 [±165] vs 390 [±103] Gy·cm(2), P = 0.033, respectively). The average amount of contrast volume used was not significantly different between groups. Radiation emitted during EVARs with PDPs was significantly greater relative to those without PDPs. Device design and operators should thus aim to decrease PDPs and to minimize fluoroscopy time.
Michael Butler; Madhukar S Patel; Samuel E Wilson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American surgeon     Volume:  78     ISSN:  1555-9823     ISO Abbreviation:  Am Surg     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370522     Medline TA:  Am Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1029-32     Citation Subset:  IM    
Department of Surgery, University of California, Irvine Medical Center, Orange, California, USA.
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