出 处:《中华结核和呼吸杂志》2013年第7期510-515,共6页Chinese Journal of Tuberculosis and Respiratory Diseases
基 金:国家科技支撑计划呼吸系统疾病防治研究(2012BA105800);长江学者和创新团队发展计划(1RT0961)
摘 要:目的比较-口气法与重复呼吸法在健康人群及间质性肺疾病(ILD)和慢性阻塞性肺疾病(简称慢阻肺)患者肺弥散功能检测中的差别。方法2011年9月至2012年2月广州呼吸疾病研究所的ILI)患者32例为ILD组,其中男15例,女17例,年龄41~72岁;慢阻肺患者32例为慢阻肺组,其中男28例,女4例,年龄40—75岁;健康体检者29名为对照组,其中男9名,女20名,年龄42~74岁。随机数字表法交叉进行-口气法或重复呼吸法弥散功能测试。以对照组-口气法D。CO占预计值%为标准,分别校正3组的重复呼吸法D,CO占预计值%、D,CO/肺泡容积占预计值%。两组间比较采用配对t检验,多组问比较采用单因素方差分析,计算受试者工作特征曲线下面积(AUC)及其95%CI。结果用重复呼吸法检测,对照组中15例的D.CO占预计值%〈80%,其均值[(78.8±2.1)%]也低于80%。用-口气法检测对照组的D.CO占预计值%为标准,对重复呼吸法D.CO占预计值%进行校正,以校正值(1.097)分别校正3组的重复呼吸法D。CO/肺泡容积占预计值%。校正前-口气法和重复呼吸法测得的D。.CO占预计值%:对照组分别为(91.2±1.9)%和(78.8±2.1)%,ILD组分别为(45.8±2.6)%和(60.0±1.9)%,慢阻肺组分别为(66.3±2.9)%和(56.6±1.6)%;D.CO/肺泡容积占预计值%:对照组分别为(99.8±2.3)%和(84.6±4.5)%,ILD组分别为(75.9-t-3.0)%和(88.5±5.4)%,慢阻肺组分别为(80.2±3.7)%和(50.6±2.5)%,3组均有显著差别。校正后-口气法和重复呼吸法测得值,仅ILD组D.CO占预计值%[(45.8±2.6)%和(65.8±2.1)%]、D.CO/肺泡容积占预计值%[(75.9±3.0)%和(102.2±6.2)%],慢阻肺组DI.CO/肺泡容积占预计值%[(80.2±3.7)%�Objective To compare the difference of pulmonary diffusing capacity measured by single-breath (SB) and re-breathing (RB) in normal subjects, patients with interstitial lung disease (ILD) and chronic obstructive pulmonary disease (COPD). Methods We enrolled a cohort of subjects from theGuangzhou Institute of Respiratory Disease between September 2011 and February 2012: control group 29 (male 9, female 20, 42-74 y), ILD group 32 (male 15, female 17, 41-72 y), COPD group 32 (male 28, female 4, 40 -75 y). All subjects underwent pulmonary diffusing capacity test using SB or RB method according to random figures order list. Diffusing capacity of carbon monoxide per predicted measured by SB method (SB-DLCO% pred) of the normal group was used as the standard to adjust the diffusing capacity of carbon monoxide per predicted measured by RB method (RB-DLCO% pred) and diffusing capacity of carbon monoxide per liter of VA per predicted measured by RB (RB-DLCO/VA% pred) in the 3 groups, respectively. Comparisons between 2 groups were performed by using the independent-sample t test, among more than 2 groups by using the One-Way ANOVA test, while the ROC curve was used to calculate the area under curve (AUC) and its 95% CI. Results In the control group, 15 subjects' RB-DLCO% pred was lower than 80% , and the mean value (78.8 ±2. 1)% was also lower than 80%. Using SB-DLCO%pred of the normal group as a standard to adjust the RB-DLCO% pred, the corrected value was 1. 097, and then this value was used to adjust RB-DLCO/VA% pred in the 3 groups, respectively. Before correction DLCO% pred [the control group: (91.2 ±1.9)% vs (78.8 ±2.1)%; the ILD group: (45.8±2.6)% vs (60.0± 1.9) % ; the COPD group : (66. 3 ± 2.9) % vs (56. 6 ± 1.6) % ] and Dr CO/VA% pred [ the control group : (99.8±2.3)% vs (84.6 ±4.5)%; the ILD group: (75.9 ±3.0)% vs (88.5 ±5.4)%; the COPD group : ( 80. 2 ± 3.7 ) % vs ( 50. 6 ± 2.5 ) % ] betwe
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