盆腔恶性肿瘤术后输尿管下段梗阻的腔镜手术治疗
盆腔恶性肿瘤术后输尿管下段梗阻的腔镜
手术治疗
《癌症》ChineseJournalofCancer,2007,26(11):1227—1230l227 盆腔恶性肿瘤术后输尿管下段梗阻的腔镜手术治疗
温星桥,高新,张勇,
邱剑光.
EndouroI
司徒杰,湛海伦,
蔡育彬.
王德娟
ogicTreatmentsofDistalUreteralObstructioninPatients
临床研究
withHistoryofPelvicMalignancies:EfficacyandSafetyEvaluation
WENXing—Qiao',GAOXin',ZHANGYong,CAIYu—Bin',QIUJian—Guang', SITUJie',ZHANHai—Lun',WANGDe—Juan'
1.中山大学附属第三医院
泌尿外科.
广东广州510630
2.中山大学附属第三医院
核医学科.
广东广州510630
J.DepartmentofUrology,
TheThirdAffiliatedHospitd, SunYat—senUniversity,
Guangzhou,Cuangdong,510630, P.R.China
2.DepartmentofNuclearMedicine,
TheThirdAffiliatedHospitd,
SunYat—senUniversity,
Guangzhou,Cuangdong,510630,
P.R.Chinn
通讯作者:高新
Correspondenceto:GAOXin
Tel:86—20—85516867—2052
E—mail:gaoxin44@163.con
收稿日期:2007—03—20
修回日期:2007—07—05
[ABSTRACT]BACKGROUND&OBJECTIVE:Postoperativetissue adherence.scarringandradiotherapyOftenJeadtoextrinsiccompression andstrictureinthedistaIureterofthepatientswhohadhistoryofpelvic malignancies.Ouraimwastoevaluatetheefficacyandsafetv0f endourologictechniquesintreatingthiskindofureteraIobstruction. METHODS:FromJan.1998toMar.2007.46patientswithobstructioninthe distaIureterandhadhistoryofpelvicmalignanciesunderwentendoscopic treatmentsattheThirdAffiliatedHospitalofSunYat—senUniversityforreliefof
theobstruction.Perioperativeandfollow—updatawereanalyzed.RESULTS:
Ofthe46patients.25underwentlaparoscopicureterolysisanduretero—
neocystostomy,18underwentplacementofureterstentunderureteroscope, 3underwentDercutaneOusnephrostomy.Noseverecomplicationwas recorded.Themeanoperatingtimewas82.5rain(range.30—140min).The
meanbloodIosswas45.5ml(range.5—180mI).Nobloodtransfusionwas
needed.Themedianfollow—uptimewas18.2months(range.3monthsto
6.5years).Threemonthsafteroperation.B—uItrasOnOaraphVandintravenous
urography(IVU)showedthat39(84.8%)patientshadrecoverednOrmaI renalfunction.theother7(15.2%)hadhvdrOnephrOsisreliefandrenaI functionimprovement.NuclearrenaIscanningshowedthatthemean postoperativeglomerularfiltrationrate(GFR)intheobstructivekidneywas
higherthanthepreoperativeIeveI(37.6mI/minvs.21.3mI/min.P<0.05).
Nostrictureintheuretero—bladderanastomoticstomawasrecorded. CONCLUSION:Endoscopicoperationisaneffectiveandfeasibleoptionfor managingsomeselectedkindsofdistalureteraIobstructioncausedby postoperativetissueadherenceandradiotherapyinthepatientswithhistory
ofpelvicmalignancies.
KEYWORDS:Laparoscopy;Ureteroscopy;UreteraIobstruction/ complication;Surgicaloperation;Pelvicneoplasm 【摘要】背景与目的:盆腔恶性肿瘤手术后组织粘连,瘢痕形成或放射治疗等
常导致输尿管下段受压梗阻及肾积水.本研究旨在评价利用腔镜技术治疗此类
输尿管梗阻的疗效与安全性.方法:1998年1月至2007年3月,46例有输尿管下
段梗阻伴盆腔肿瘤史的患者在中山大学附属第医院接受了腔镜手术,
围手
术期及随访
.结果:46例患者中,25例行腹腔镜输尿管一膀胱吻合术,18例行
输尿管镜放置支架管引流,3例行经皮肾造瘘术,未发生严重并发症.平均手术时
间825min(30,140min),术中出血45.5ml(5,180m1),均未接受输血.中位随
访时间18.2个月(3个月,6.5年).术后3个月,静脉尿路造影及B超提示39例
(84.8%)肾分泌恢复正常,其余7例(15.2%)肾积水减轻,肾功能改善;核素扫描
提示平均患侧肾小球滤过率比术前升高(37.6ml/minvs.21.3ml/min,P<0.05). 所有输尿管一膀胱吻合El无狭窄.结论:腔镜手术治疗部分类型盆腔肿瘤手术后
或
放疗后下段输尿管梗阻是有效,可行的.
关键词:腹腔镜;输尿管镜;输尿管梗阻/并发症;外科手术;盆腔肿瘤
中图分类号:R692文献标识码:A
文章编号:1000—467X(2007)11—1227—04
1228温星桥,等.盆腔恶性肿瘤术后输尿管下段梗阻的腔镜手术治疗
Postoperativetissueadherence,scarring,and
radiotherapyoftenleadtoextrinsiccompressionand strictureinthedistalureterofthepatientswithpelvic
malignancies[引.Theclinicalmanifestationsofthese patientsmaybeasymptomatic,orsymptomaticonly duringtheperiodofdiuresis,orsymptomaticwith severerenalcolic.Thedegreeofsymptomsshowsno correlationtothedegreeofobstruction.Effective treatmentmustbeinstitutedimmediatelysince prolongedobstructionmaycausepain,infection,and eventuallyimpairedrenalfunction.Operationssuchas ureterolysis,ureteroneocystostomy,placementof ureterstent,andnephrostomyarethesurgical optionsforthesepatients.Traditionally,opensurgery istheonlychoicetoperformtheseprocedures. However,asmodemendourologyisnOWinprogress, urologistscanperformtheseoperationsinamini—
invasivewaybyusingendourologictechniquessuch aslaparoscopy,ureteroscopy,andpercutaneous nephrostomyrPCN)[,.
Inthisstudy,wepresentedourexperienceof managingthedistalureteralobstructionvia endourologictechniquesinthepatientswithhistoryof pelvicmalignancies.Theefficacyandsafetyofthese procedureswereevaluated.
1PATlENTSANDMETHODS
1.1ClinicaIdataofpatients
FromJan.1998toMar.2007,46patients
underwentendourologictreatmentsforureteral obstructionattheThirdAmliatedHospitalofSun Yat—senUniversity.Allpatientshadupperureteral dilationandhydronephrosis.Ofthe46patients,18 weremen,28werewomen,withamedianageof
41.5(range,23-78);11hadcervicalcancer,7had ovariancancer.5haduterinecorpuscancer,12had colorectalcancer.8hadbladdercancer,and3had prostatecancer.AccordingtotheTNMstagingsystem (UICC,2002),22patientswereatstageI,18at stage11,6atstagell1whentheycometothe
hospitalf0rinitia1treatmentsf0rthepelvictumors.Of the46patients,30hadreceivedsurgicaloperation forpelvicmalignancies,9hadreceivedradiotherapy, 7hadreceivedbothsurgicaloperationand
radiotherapy.Beforeendourologictreatments,the malignanciesin40patientswerecompletely controlled,whilethoseintheother6patientswere not.
Theselectioncriteriafortheendourologic treatmentsincludedradiographicevidencesofureteral obstructioninanydegreeofhydronephrosiswith intractablepain,urinarytractinfection,andimpaired renalfunction.Allpatientshaddistensioninthe upperuretersandhydronephrosisthatwereconfirmed byB—uhrasonogrphyorintravenousurography(IVU). Theseverityofhydronephrosiswasgradedon ultrasonographyaccordingtothesystemoftheSociety forFetalUrology[]:"mild''indicatessplittingof normalechogeniccentralrenalcomplex;"moderate'' indicatesdilatedpelvisbeyondthesinus,uniformly dilatedcalices,andthickenedparenchyma;"severe'' indicatesattenuatedparenchymaatleasthalfasthin asonthecontralateralside.Accordingtothissystem, 6patientshadmildhydronephrosis,23hadmoderate
hydronephrosis,and17hadseverehydronephrosis. Noadditionalpathologicfeaturesoftheuppertract, suchascalculiandtumors,werefound.
1.2Preoperativeexaminationsandpreparation Acombinationofurography(intravenous,
antegrade,andretrograde),computedtomography (CT)/CT—guidedurography(CTU),andmagnetic
resonanceimaging(MRI)wereperformedtoobtain anaccurateassessmentofthestricturelengthand location.Nuclearrenalscanningwasperformedto assessthedegreeofobstructionandtherelativerenal functionoftheipsilateralkidneybeforeoperation. Antibioticswereusedtoensurethatthepatienthas asterileurineculturebeforeendourologictreatment. Antibioticbowelpreparationwasperformed preoperativelyonthepatientswithpossiblebowel injury.
1.3Jndicationsandoperationpatterns
Theindic&ionsforendourologictreatments includedureteralobstructionandhydronephrosiswith intractablepain,urinarytractinfection,andimpaired renalfunction.Thecaseswithheavytissuescarring, severeadherenceoracuteedemawereexcluded. Surgicalproceduresincludeddirectureteroneo—
温星桥,等.盆腔恶性肿瘤术后输尿管下段梗阻的腔镜手术治疗1229
cystostomy,ureteroneocystostomyusingpsoashitchor Boaribladderflap,retrogradeplacementofureter stentunderureteroscope,andpercutaneous nephrostomy.
Theendourologicoperationswereselected
accordingtothepatients'generalcondition,defect lengthoftheureter,andtheseverityof
hydronephrosis.Afterresectionoftheconstrictivepart oftheureter,directureteroneocystostomyunder laparoscopewasconducted.Whentheureterwastoo shortfordirectureteroneocystostomy.Boaribladder flaporpsoashitchprocedureswereconductedto createatension.freeanastomosisE73.Inthepatients withadvancedtumors,whowereextremelyold,or hadahighsurgicalriskandcouldtolerateinternal stentdrainagewell,placementofureterstentunder ureteroscopewasperformed【8].Whenretrogradestent
insertionfailed,thepatientswerereferredto percutaneousnephrostomy.
Thelaparoscopicoperationswereperformedvia transperitonealrouteinmostpatients.Aftersettingup thepneum0perit0neum,thelaparoscopicinstruments wereusedtodissectandexposethedistalobstructive ureter,preservingasheathof3—4mmthickin
periureteraltissue.Thestricturepartoftheureterwas incised.anda6一IOFcatheterwasinsertedasan
internalstent.Absorbablesuturewasusedtofinish theanastomosis.AUtheureteralanastomoseswere freeoftension.Drainageinductiontubeswere routinelyplacedbesidetheanastomoticstoma. 1.4Follow—up
Thepatientswereinterviewedpostoperatively evcry3months.Examinationofurinetest,detection
oftheserumlevelofcreatine,andB—uhrasonography
wereperformedroutinelyatthefollow—upobservation.
Atthethirdmonthafteroperation,IVUwas performedwhenitcanbetoleratedbythepatient, nuclearrenalscanningwasperformedtoassessthe renalfunctionoftheipsilateralkidney. 2RESULTS
Inthisgroup,25patientsunderwent
laparoscopicureteroneocystostomy(including12 underwentdirectureteroneocystostomy,6usedpsoas hitch,and7usedBoariflap);18underwentdilation orplacementofureterstentunderureteroscope;3 underwentpercutaneousnephrostomyafterthefailure ofstentplacementforrapidlyrelievingureteral obstruction.
Themeanoperatingtimewas82.5min(range, 30—140min).ThemeanbloodlOSSwas45.5ml
(range,5—180m1).Nobloodtransfusionwasneeded. Allprocedureswereperformedsuccessfullywithout anyconversiontoopensurgicaloperation.Nosevere complicationswereencountered.
Themedianfollow—uptimewas18.2months
(range,3monthsto6.5years).Forty—two(91.3%)
patientswerealiveattheendoffollow—up.N0
strictureintheanastomoticstomawasrecorded, whichwasconfirmedbyIVUatthe6thmonthafter operation.
Ofthe46patients,39(84.8%)hadrecovered normalrenalfunctionafteroperation,7(15.2%)had hydronephrosisreliefandrenalfunctionimprovement,
whichwasconfirmedbyB.uhrasonographyandIVU. Nuclearrenalscanningshowedthatthemean
postoperativeglomerularfihrationrate(GFR)ofthe kidneyattheobstructivesidewassignificantlyhigher thanthepreoperativelevel(37.6ml/minvs.21.3ml/ min.P<0.O5).
3DISCUSSION
Endourologictechniquesaresafeandfeasible mini.invasiveoptionsfortreatingdistalureteral obstructioninthepatientswithahistoryofoperation orradiotherapyforpelvicmalignancies.Inthisstudy, alltheprocedureswereperformedsuccessfully withoutanyconvemiontoopensurgicaloperation.No severecomplicationswereencountered.Asweknow, theextrinsicureteralobstructioninthepatientswith historyofpelvicmalignanciesishardtobemanaged. Theurologistsshouldbalancethepatient'slife quality,renalpreservationandtheriskof
complications.Withskillfulexperience,endoumlogic techniques,suchaslaparoscopy,ureteroscopy,and percutaneousnephrostomy,provideotheroptionswith theadvantagessuchaslesstrauma,mini—invaslveand
shortrecoverytimeforthepatients.
1230温星桥,等.盆腔恶性肿瘤术后输尿管下段梗阻的腔镜手术治疗
Laparoscopicoperationsbecomeanimportant partofmodemurologicpractice,andplayimportant rolesinablativeproceduresandreconstruction operations.Laparoscopicureteroneocystostomywas firstdescribedbyEhrlichetal[.anditsfirst
performanceinanadultwasreportedbyReddyet a1.[subsequently.Itisdescribedforavarietyof conditions,includingendometriosis,stricturedueto animpactedcalculus,andureteralinjuryduring laparoscopichysterectomy.Nezhateta1.LllJreporteda seriesof6patientswhounderwentlaparoscopic vesical—psoashitchforinfiltrativeureteral
endometriosisandconcludedthattheprocedureis safeandeffective,withtheknownbenefitsof laparoscopy.Inourexperience,successfulureteral reconstructionreliesonpreservationofadequate vascularperfusionandconstructionofatension—free
anastomosis.Theprocedurechoiceisdetermined traditionallydependonthestricturelength.Boariflap andpsoashitchproceduresarebestsuitedforthe stricturewithalengthexceeding6am.The
cystostomyshouldbemadelaterallyafterfillingthe bladderandensuringthattheanastomosiscanbe accomplishedwithouttension.Thebloodsupplyofthe uretershouldbemonitoredintheprocedureof dissection.Weprefertoplacetheinternalstentswith largediameter,suchas6Fand10F,intheureterfor betterinduction.Therequirementsforsuccessful completionincludeknowledgeofanatomy,askillful andexperiencedlaparoscopicsurgeon,and,lastbut notleast,gooddexterityintheintracoporeal laparoscopicsuturingtechnique.
Forthepatientswithadvancedtumors,orhavea highsurgicalriskandtoleratesinternalstentdrainage well,retrogradedilationorplacementofureterstent
underureteroscopearegoodchoicesforattenuating theobstructioninamini—invasiveway.Despite
significantimprovementsinendourologicdevicesand materials,endourologicureteralstentingmay occasionallybeachallengingprocedure,evenfor experiencedurologists.Percutaneousnephrostomyis anotherchoiceincasesoftransurethralprocedure failure【.However,itisassociatedwithahigh
incidenceofaccidentaltubedislodgement,andthus mayreducethepatients'qualityoflife.Additional researchbyourgroupisongoingtoassessthe efficiencyandlong—termresultsofpercutaneous
nephrostomyinthesepatients.Itshouldbenotedthat endourologicoperationcouldnottreatallkindsof distalureteralobstruction.Whenthepatienthas severetissuesca~ingoradherenceinthepelvis, traditionalopenoperationmaybeabetterchoice. Inconclusion,besidesopensurgery,endourologic operationisaneffectiveandfeasibleoptionfor managingsomecertainkindsofdistalureteral obstructioncausedbypostoperativetissueadherence andradiotherapyinthepatientswithhistoryofpelvic malignancies.
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