低度不典型增生溃疡性结肠炎是发展为高度不

低度不典型增生溃疡性结肠炎是发展为高度不

这项研究的目的是肯定诊断为低度不典型增生(LGD)的溃疡性结肠炎(UC)患者发展为高度不典型增生(HGD)或结直肠癌(CRC)的危险因素。

该研究纳入的患者,病理证实为广泛溃疡性结肠炎。这些患者在-年间被StMark's医院确诊为低度不典型增生,且被随访至年7月1日。搜集人口统计学数据、内镜和组织学数据并与HGD或CRC的发展相干联。

共有例患者诊断为LGD,这些患者的中位随访时间为48个月(四分位距(IQR),个月)。总的来说,33名患者在研究期间发展为HGD或CRC(占研究总人数的19.1%,20CRCs)。多变量Cox比例风险分析表明,宏观非瘜肉(HR,8.6;95%CI,3..8;P0.)或隐形不典型增生(HR,4.1;95%CI,1..4;P=0.02),不典型增生病灶大小≥1?cm(HR,3.8;95%CI,1..4;P=0.01),和“不确定的不典型增生”的既往史(HR,2.8;95%CI,1..5;P=0.01),均是HGD或CRC发展的显著增进因素。

多病灶增生(HR,3.9;95%CI,1..8;P0.),异时性不典型增生(HR,3.5;95%CI,1..5;P=0.),或结肠狭窄(HR,7.4;95%CI,2..1;P0.)仅与HGD或CRC的发展呈单变量相关性。

结论:在诊断为LGD的UC患者中,非瘜肉或内镜下隐形增生,较大(≥1cm)或不确定不典型增生史是发展为HGD或CRC的独立危险因素。

Low-gradedysplasiainulcerativecolitis:riskfactorsfordevelopinghigh-gradedysplasiaorcolorectalcancer.

ChoiCH1,2,IgnjatovicWilsonA3etal.

1InflammatoryBowelDiseaseUnit,StMark'sHospital,UK;2TumourBiology,CharterhouseSquare,QueenMaryUniversityofLondon,London,UK;3WolfsonUnitforEndoscopy,StMark'sHospital,UK.

Abstract

OBJECTIVES:

Theaimofthisstudywastoidentifyriskfactorsassociatedwithdevelopmentofhigh-gradedysplasia(HGD)orcolorectalcancer(CRC)inulcerativecolitis(UC)patientsdiagnosedwithlow-gradedysplasia(LGD).

METHODS:

PatientswithhistologicallyconfirmedextensiveUC,whowerediagnosedwithLGDbetweenandatStMark'sHospital,mographic,endoscopic,andhistologicaldatawerecollectedandcorrelatedwiththedevelopmentofHGDorCRC.

RESULTS:

Atotalofpatientswerefollowedforamedianof48monthsfromthedateofinitialLGDdiagnosis(interquartilerange(IQR),months).Overall,33patientsdevelopedHGDorCRC(19.1%ofstudypopulation;20CRCs)ltivariateCoxproportionalhazardanalysisrevealedthatmacroscopicallynon-polypoid(hazardratio(HR),8.6;95%confidenceinterval(CI),3..8;P0.)orinvisible(HR,4.1;95%CI,1..4;P=0.02)dysplasia,dysplasticlesions≥1?cminsize(HR,3.8;95%CI,1..4;P=0.01),andaprevioushistoryofindefinitefordysplasia(HR,2.8;95%CI,1..5;P=0.01)ltifocaldysplasia(HR,3.9;95%CI,1..8;P0.),metachronousdysplasia(HR,3.5;95%CI,1..5;P=0.),oracolonicstricture(HR,7.4;95%CI,2..1;P0.)showedonlyunivariatecorrelationtodevelopmentofHGDorCRC.

CONCLUSIONS:

Lesionsthatarenon-polypoidorendoscopicallyinvisible,large(≥1?cm),orprecededbyindefinitedysplasiaareindependentriskfactorsfordevelopingHGDorCRCinUCpatientsdiagnosedwithLGD.

原文来源:t;(10):-71;i:10.

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