rms 难治性输尿管狭窄

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1、WorldJUrolDOI10.1007/s00345-008-0245-4ORIGINALARTICLEInitialclinicalexperiencewithfull-lengthmetalureteralstentsforobstructiveureteralstenosisUdoNagele·MarkusA.Kuczyk·MarcusHorstmann·JörgHennenlotter·Karl-DietrichSievert·DavidSchilling·UteWalcher·ArnulfStenzl·AristotelisG.AnastasiadisReceiv

2、ed:11October2007/Accepted:13February2008©Springer-Verlag2008AbstractciatedwithinadequatestentlengthandshouldincreaseObjectivesLong-termureteralstentingisusedtoensurepatientcomfortandstentdurability.urinarydrainageifareconstructiveapproachorareleaseofanextrinsicobstructionisnotpossible.Inthi

3、scontribution,KeywordsUreteralobstruction·Endourology·Metalstentalong-termexperiencewithanewfull-length,metalindwellingstentispresented.MethodsFourteenpatientswithureteralobstructionIntroductionreceivedfullmetalindwellingstentsin18collectingsys-tems(benigndiseasein5andmalignantdiseasein13).

4、Theaimoflong-termureteralstentinginthecaseofStentplacementwasperformedcystoscopicallyunderXuo-obstructionoftheupperurinarytractistoensureurinaryroscopicguidance.Follow-upwasdoneevery3monthsdrainagefromthekidneytothebladder,ifareconstructivewithultrasonographicexamination,creatininelevels,an

5、daapproachcannotbeachievedduetopatientstatusorifavisualanalogpainscore.releaseofanextrinsicobstructionisnotpossiblebymedi-ResultsEightstentswereremoved,whereaseightarestillcalorinterventionaltreatments.However,thelong-terminsitu.Onepatientwithoutstent-relatedproblemsdiedfailurerateofindwell

6、ingureteralstentsishigh[1,2].becauseofprogressiverectalcancer9monthsafterbilateralOntheotherhand,placementofanephrostomytubestentinsertion.Meanstentduration(8stentsstillinsitu)isdecreasesqualityoflife,isapossibleentrysiteforbacteria8.6months,whereasmeanstentdurationforbenignandandtherefore,

7、apossiblesourceofinfection.Thelattermalignantdiseaseis11.8(median13)and7.3(median6)shouldbeavoided,especiallyinpatientsundergoingmonths,respectively(p<0.05).Allremovedstentswerechemo-and/orimmunotherapy.extractedendoscopicallywithoutanyproblemsandhadnoVa