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JAMA:肺间质性异常增加患者病死率

2016-02-21 MedSci MedSci原创

根据2月16日发表在JAMA的一项研究结果,间质性肺异常与较低的生存率相关。

根据2月16日发表在JAMA的一项研究结果,间质性肺异常与较低的生存率相关。

间质性肺异常是指没有间质性肺病病史患者行胸部CT扫描,发现肺间质密度异常,包含100多种不同的临床类型。

除了CT证据,间质性肺异常与一氧化碳扩散能力较低、6分钟步行距离较低、肺总量降低和运动能力降低有关。这些症状和体征也是诊断特发性肺纤维化的依据。

在本研究中,作者推测某些情况下肺间质异常是特发性肺纤维化早期或温和的表现,如果推测成立,肺间质异常可能与死亡风险增加相关。研究人员分析肺间质异常与全因死亡率增加之间可能存在的关联。

研究人员鉴别四个队列中参与者胸部CT数据。四个队列研究分别是:FHS(,Framingham 心脏研究,Framingham Heart Study )2633名参与者;AGES-Reykjavik研究(年龄基因/环境易感性,the Age Gene/Environment Susceptibility )5320名参与者,COPDGene(慢性阻塞性肺疾病基因研究,Chronic Obstructive Pulmonary Disease Gene Study )2068名参与者,ECLIPSE研究1670名参与者。随访患者3-9年。AGES-Reykjavik 研究还包括死亡原因,并且包含老年人口。

总体而言,177例(7%)FHS参与者,378 (7%) AGES-Reykjavik 参与者,156例(8%) COPDGene 参与者,157 (9%) ECLIPSE参与者有肺间质异常。

随访期间存在间质性肺异常的参与者死亡率较高。FHS 7% vs 1% ( 95%CI 2%-10%), AGES-Reykjavik  56% vs 33%  (95%CI 18%-28%), ECLIPSE 11% vs 5% (95%CI 1%-11%)。COPDGene研究存在间质性肺异常的参与者绝对死亡率没有差异(16% vs 11%;  95%CI 1%-11%)。

调整协变量(吸烟、癌症、慢性阻塞性肺病、冠状动脉疾病)后,四个队列中存在肺间质异常的参与者死亡风险均较高。FHS(HR 2.7,95%CI 1.1-6.5; P 0.03),AGES-Reykjavik (HR 1.3,95%CI 1.2-1.4,P<0.001),COPDGene(HR 1.8,95%CI 1.1-2.8,P=0.01),Eclipse(HR 1.4,95%CI 1.1-2.0,P=0.02)。

作者指出,在AGES-Reykjavik 队列中,呼吸系统死因在肺间质异常参与者中较常见(13% vs 4%), 其中肺间质异常参与者中随访期间进展为肺间质纤维化。

本研究也存在一些限制。该研究不能区分早期病变与正常老化,也不能说明间质性肺异常的高患病率与特发性肺纤维化的罕见之间的关系。

研究者建议进行后续研究识别间质肺异常的风险因素和存在间质肺异常的患者的病程。目前已有较好地治疗肺间质纤维化的方法,未来的试验着重于减少肺间质纤维化患者的总体病死率,关注肺间质纤维化的早期阶段。

原始出处:

1. Ricki Lewis. Interstitial Lung Abnormalities Tied to Increased Mortality. Medscape Medical News. February 16, 2016.

2. Rachel K. Putman, et all. Association Between Interstitial Lung Abnormalities and All-Cause Mortality. JAMA. 2016;315:672-681.

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    2016-04-04 小猫cathy

    间质性肺炎多了

    0

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    2016-04-04 小猫cathy

    间质性肺炎多了

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1677401, encodeId=c4f616e740144, content=<a href='/topic/show?id=0101e089022' target=_blank style='color:#2F92EE;'>#病死率#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70890, encryptionId=0101e089022, topicName=病死率)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b4da27497284, createdName=soongzhihua, createdTime=Thu Dec 22 10:32:00 CST 2016, time=2016-12-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1815749, encodeId=f00f1815e4956, content=<a href='/topic/show?id=82e99e291b0' target=_blank style='color:#2F92EE;'>#间质性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=97291, encryptionId=82e99e291b0, topicName=间质性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=99cf2500102, createdName=zjshifan_98647306, createdTime=Thu Jan 19 02:32:00 CST 2017, time=2017-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=75462, encodeId=8004e546263, content=间质性肺炎多了, beContent=null, objectType=article, channel=null, level=null, likeNumber=124, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cbd11668261, createdName=小猫cathy, createdTime=Mon Apr 04 14:12:00 CST 2016, time=2016-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=75463, encodeId=0820e54639d, content=间质性肺炎多了, beContent=null, objectType=article, channel=null, level=null, likeNumber=113, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cbd11668261, createdName=小猫cathy, createdTime=Mon Apr 04 14:12:00 CST 2016, time=2016-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=75464, encodeId=48bce5464a2, content=间质性肺炎多了, beContent=null, objectType=article, channel=null, level=null, likeNumber=122, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cbd11668261, createdName=小猫cathy, createdTime=Mon Apr 04 14:12:00 CST 2016, time=2016-04-04, status=1, ipAttribution=)]
    2016-04-04 小猫cathy

    间质性肺炎多了

    0

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