الفهرس 
ANATOMY OF THE URETEROnly 14 pages are availabe for public view
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Abstract
Advances in endourology diverted the management of ureteric stones by open surgery to minimal invasive methods like extracorporeal shock wave lithotripsy and ureterorenoscopy. Nevertheless, these techniques are not risk-free. Ureteric calculi more than 10mm in diameter should be removed by URS, because large calculi tend to impact on the ureter and are unlikely to migrate to the distal region. The use of varient adjuvant therepy as MET for DUS help to reduce pain, complication and increase rate of stone clearance. The selective alpha blocker tamsulosin has 10 folds affinity for alpha 1Aand alpha 1D subtypes than alpha 1B adrenoceptor subtypes. But affinity of silodosin for alpha 1A subtype is 162 and 50 fold greatly affecting than alpha1Band alpha 1D subtypes respectively .