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高分辨率CT示支气管扩张的慢性阻塞性肺疾病急性加重期患者的临床及气道炎症特征 被引量:4

Characteristics of clinical and airway inflammation in patients with acute exacerbation of COPD complicated by bronchiectasis showed on lung HRCT
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摘要 目的 探讨高分辨率CT(HRCT)示支气管扩张的慢性阻塞性肺疾病(COPD)急性加重期患者的临床及气道炎症特征.方法 入选2011年11月1日至2012年2月29日就诊于北京同仁医院呼吸内科的COPD急性加重期患者51例(男27例,女24例),行肺部HRCT进行支气管扩张评分,依据Smith等建议的评分标准由2名放射科医师对每一个肺叶进行支气管扩张评分.支气管扩张评分平均值在1.5分及以上者定为支气管扩张组(支扩组,17例),支气管扩张平均值为0~1分者定为无支气管扩张组(非支扩组,34例).比较两组患者在一般临床资料(年龄、性别、体质量指数、吸烟指数、急性加重频率)、肺功能、痰炎症细胞及炎症因子等方面的差异,分析支气管扩张对COPD急性加重期气道炎症反应及肺功能的影响.采用SPSS 17.0软件进行统计学分析,符合正态分布的计量资料以“(x)±s”表示,两组间比较采用t检验.非正态分布的计量资料,以中位数(四分位间距)表示,两组间比较采用非参数秩和检验.计数资料组间比较采用x2检验,P<0.05为差异有统计学意义.结果 入组患者中17例(33.3%,17/51)HRCT存在支气管扩张.诱导痰细胞总数支扩组[5420(1250~13 240)×106/L]与非支扩组[4880(3180~18 140)×106/L]比较,Z=-0.52,P=0.603;中性粒细胞计数支扩组[(3490(820~8870)×106/L)]与非支扩组[2200(1020~12 160)×106/L]比较,Z=-0.200,P=0.842;淋巴细胞数支扩组[(1200±860)×106/L]与非支扩组[(1430±1250)×106/L]比较,t=0.715,P=0.478;两组间差异均无统计学意义(P值均>0.05).支扩组患者痰上清液IL-8[760.5(400.4~932.1)pg/ml]水平较非支扩组[396.3(12.7~964.2)] pg/ml]明显升高(Z=-2.278,P=0.023),支扩组患者第1秒用力呼气容积占预计值百分比(FEV1%预计值)及第1秒用力呼气容积占用力肺活量百分比(FEV1/FVC)均较非支扩组低,其中支扩组患者FEV1%预计值[(47.5±11.8)%]、FEV1/FVC[(51.3±12.1)%],非支扩组FEV1%预计值[(55.9±14.7)%]、FEV1/FVC[(58.1±10.3)%],差异有统计学意义(t值分别为2.049、2.111,P值均<0.05).支气管扩张组咯黄痰的例数(52.9%,9/17)较无支气管扩张者(17.6%,6/34)高,差异有统计学意义(x2=6.8,P=0.009).结论 肺部HRCT示支气管扩张的COPD急性加重期患者气道IL-8明显升高,肺功能相对较差.
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出处 《结核病与肺部健康杂志》 2013年第2期-,共5页 Journal of Tuberculosis and Lung Health
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