容积二氧化碳图对支气管哮喘患者急性加重分级的意义  被引量:7

The significance of volumetric capnography in assessment of asthmatic acute exacerbation staging

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作  者:刘锦铭[1] 胡华成[1] 施敏华[1] 杨文兰[2] 郑卫[2] 王英敏[2] 

机构地区:[1]苏州大学附属第二医院呼吸科,215004 [2]同济大学附属上海市肺科医院肺功能室

出  处:《中华结核和呼吸杂志》2008年第3期186-190,共5页Chinese Journal of Tuberculosis and Respiratory Diseases

摘  要:目的探讨容积二氧化碳图(VCap)参数对支气管哮喘(简称哮喘)诊断的临床价值。方法2006年7月至2007年5月对64例哮喘急性发作期患者(哮喘组)及20名健康者(健康对照组)进行肺通气功能以及VCap测定,并依据FEV1占预计值%将哮喘患者分为A组(〉80%,18例)、B组(40%~80%,26例)、C组(〈40%,20例),所有受试者先行VCap测定,随后完成FEV1占预计值%、FEV1/FVC、FVC占预计值%、最大呼气中段流量(MMEF)占预计值%测定。统计学处理采用SPSS 13.0软件。计量资料采用元^-x±s表示,计数资料采用卡方检验,计量资料两组间比较采用t检验。肺通气参数与VCap参数间的相关性采用一元线性回归检验;哮喘组与对照组间的差异采用独立样本t检验;健康对照组及哮喘各亚组间的比较采用单因素方差分析。结果哮喘组患者FEV1占预计值%、FEV1/FVC、PEF占预计值%、MMEF占预计值%分别为(52±20)%、(50±10)%、(49±16)%、(28±16)%,与健康对照组[(98±9)%、(80±6)%、(91±15)%、(73±7)%]比较差异有统计学意义(t值分别为6.93~13.29,P均〈0.01);哮喘组患者Ⅱ期斜率(dC2/DV)、Ⅲ期斜率(dC3/DV)、Ⅲ期与Ⅱ期斜率之比(SR23)分别为(19±6)%/L、(2.9±1.2)%/L、(16.8±10.6)%,与健康对照组[(31±8)%/L、(1.0±0.4)%/L,(3.3±1.5)%]比较差异有统计学意义(t值分别为5.09、-6.14、-6.54,P均〈0.01);哮喘B、C组dC2/DV分别为(17±5)%/L、(13±4)%/L,与健康对照组[(31±8)%/L]比较差异有统计学意义(t=-11.82、-16.75,P均〈0.01);哮喘B、C组患者dC3/DV、SR23分别为(3.2±0.8)%/L、(17.2±3.5)%,(4.1±1.2)%/L、(28.3±6.9)%,与健康对照组[(1.0±0.4)%/L、(3�Objective To investigate the diagnostic value of volumetric capnography in the assessment of asthmatic exacerbation. Methods Sixty-four patients with asthma exacerbation and 20 normal controls performed spirometry and volumetric capnography recording. The patients with asthma were divided into three sub-groups according to FEV1% pred ( A: 〉 80%, B: 40% ±80%, C: 〈 40% ). Results FEV1% pred,FEV1/FVC , PEF% pred and MMEF% pred were(98 ± 9)% ,(80 ± 6)% ,(91 ± 15)% and (73 ± 7) % respectively in the control group, but were (52 ± 20) %, (50 ± 10) %, (49 ±16) % and (28 ± 16) % respectively in the asthma group, the difference being significant ( t = 6. 93 - 13. 29, all P 〈 0. 01 ).Compared with the control group, dC2/DV [ ( 19 ± 6) %/L vs ( 31 ± 8 ) %/L, t = 5. 09, P 〈 0. 01 ] showed a decrease in the asthma group, dC3/DV [ (2. 9 ± 1.2)%/L vs ( 1.0 ± 0. 4) %/L, t = -6. 14, P 〈 0. 01 ] and SR23[(16.8±10.6)% vs(3.3±1.5)%,t= -6.54,P〈0.01] showed an increase in the asthma group compared to the control group, the difference being significant. Compared with that of the control group, dC2/DV [ B : ( 17 ± 5 ) %/L, C : ( 13 ± 4) %/L ] showed a decrease ( t = - 11.82, - 16.75, all P 〈 0.01 ) and dC3/DV [B:(3.2±0.8)%/L,C:(4.1 ±1.2)%/L] and SR23 [B: (17.2 ±3.5)% ,C: (28.3 ± 6. 9)% ] showed an increase(t =2. 16 -26.08,all P 〈0. 01) in asthma sub-groups B and C. For dC3/DV and SR23, the difference was significant between asthma sub-groups ( t = 0. 91 - 22. 18, all P 〈 0. 05 ). In Pearson correlation analysis, dC2/DV ( r = 0. 69,0. 54,0. 59,0. 54, all P 〈 0. 01 ) and dC3/DV ( r = -0.62,-0.45, -0.69, -0.58, all P〈0.01) and SR23(r= -0.75, -0.52, -0.74, -0.62, all P〈 0.01) correlated with FEV1% pred, FEV1/FVC, PEF% pred and MMEF% pred. Conclusion Volumetric capnography is a quantitative method for evaluating the severity of airflow obstruction and it can he performed

关 键 词:哮喘 呼吸功能试验 容积二氧化碳图 

分 类 号:R686[医药卫生—骨科学]

 

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