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The Effect of Extralumenal Safety Wires on Ureteral Injury and Insertion Force of Ureteral Access Sheaths: Evaluation Using an Ex Vivo Porcine Model.
MedLine Citation:
PMID:  22245301     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To evaluate the effect that a safety wire (SW) had on insertion force and direct ureteral trauma using ureteral access sheaths (UAS) in an ex vivo porcine model. MATERIAL AND METHODS: UASs were advance into 20 fresh ex vivo porcine kidney-ureters, either with or without SWs. The average and max force of insertion were recorded. Retrograde saline injection was used to identify the presence of lacerations. RESULTS: For SW vs no SW, the mean insertion force (1.79 vs 0.67, P = .0003, respectively) and max insertion force (2.29 kg vs 1.00, P = .0007) was greater in the SW group. There were 9 lacerations, 6 of which were partial and 3 complete. Of the partial injuries, 2 were in the no SW group and 4 were in the SW group. Of the complete lacerations, 2 occurred in the no SW group and 1 in the SW group. However, there was no significant difference in the total number of lacerations (P = 1.00), the number of partial lacerations (P = .628), or the number of complete lacerations (P = 1.00) between the 2 groups. CONCLUSIONS: The use of an SW significantly increases the force required to insert a UAS; however, it does not appear to affect the force or the degree of ureteral injury.
Authors:
Joseph A Graversen; Oscar M Valderrama; Ruslan Korets; Adam C Mues; Jaime Landman; Ketan K Badani; Mantu Gupta
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-12
Journal Detail:
Title:  Urology     Volume:  -     ISSN:  1527-9995     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0366151     Medline TA:  Urology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Affiliation:
University of California, Department of Urology, Irvine, Orange, CA.
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