الفهرس 
ANATOMY OF KIDNEY AND URETEROnly 14 pages are availabe for public view
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Abstract
Background: Ureteral access sheath use has been widely accepted by urologists since older ureteroscopes were difficult to insert into the ureter due to their stiffness, width and limited deflection angles. However, with advancing technology and design improvement, new generation ureteroscopes are thinner and built with lighter and more flexible materials than their older counterparts. This in turn has produced devices that are easier to maneuver, meaning that procedures can be performed without needing UAS thus the actual benefit of UAS was under question.
Aim of the Work: to compare the usage of UAS versus not using the UAS during FURS regard operative time, intra operative, postoperative complications and patient satisfaction.
Patients and Methods: fifty patients with symptomatic upper ureteric stone disease were enrolled, they were divided into 2 equal groups one underwent FURS with UAS and the second group underwent FURS without UAS.
Results: there was no significant difference between the 2 groups regarding demographic or clinical data. Moreover, no significant difference was detected between the 2 groups regarding intra or post-operative complications, stone free rate or duration of hospital stay. However, statistically significant longer operative time was recorded in UAS group compared to no UAS group.
Conclusion: compare the usage of UAS versus not using the UAS during FURS regard operative time, intra operative, postoperative complications and patient satisfaction. In the included patients, longer operative time was recorded in UAS group compared to no UAS group, there was no significant difference between the 2 groups regarding intra or post operative complications, stone free rate or duration of hospital stay. Moreover, significant association of postoperative sepsis with residual stones in included patients. UAS didn’t offer any superior advantage over no-UAS in the current study.