持续存在的非异常增生性巴雷特食管患者食管癌风险较低

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现代医院2014年2月第14卷第2期业技术篇Modem Hospial Feb 2014 Vol 14 No 2 
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持续存在的非异常增生性巴雷特食管患者食管癌风险较低 
最近的研究显示非异常增生性的巴雷特(Bar)食管患者发生食管癌的风险较低。近日,来自美国华盛顿大 学医学院Srndvas Gaddam针对Barett食管患者进行了一项多中心的队列研究,评价了在多次连续的内镜随访过 程中,是否持续存在的非增生性巴雷特食管(NDBE)能够用于Baett食管患者的危险分层。研究发现NDBE持续 存在的患者发生食管癌的风险较低,这些发现支持延长内镜随访时间间隔或无需持续随访有NBDE的患者。 
研究者根据显示NDBE的内镜随访次数,将患者分成为5组;第1组患者在其第一次内镜随访时发现NDBE, 第2组患者在连续2次内镜随访时发现NDBE;类似的,第3、4、5组患者分别连续的3、4、5次发现NDBE。建立通 过logistc回归模型来明确是否NDBE的持续存在能够避免发生癌症。总共3515例Barett食管患者,1401例患者 符合入组标准(93.3%白人;87.5%男性;中位年龄60±17岁);中位随访时间为5±3.9年,各组每年发生食管癌 的风险分别为0.32%,0.27%,0.16%,0.2%和0.11%(P=0.03);调整年龄、性别、BE长度后,根据多次内镜随 
访,NDBE的持续存在与发生食管癌的风险呈负相关。 
摘自《医学论坛网》 

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