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中高度海拔地区支气管哮喘中脉冲振荡技术测定与常规肺功能测定的对比研究
引用本文:妥亚军,多杰,杨小英,顾玉海. 中高度海拔地区支气管哮喘中脉冲振荡技术测定与常规肺功能测定的对比研究[J]. 临床荟萃, 2010, 25(15): 1298-1300
作者姓名:妥亚军  多杰  杨小英  顾玉海
作者单位:青海省人民医院呼吸科,青海,西宁,810007
摘    要:目的探讨脉冲振荡技术(IOS)在中高度海拔地区对支气管哮喘早期诊断的临床应用价值,并与常规肺功能进行相关性研究,就其是否可作为支气管哮喘诊断的敏感指标进行探讨。方法采用IOS测定100例支气管哮喘急性发作期患者的肺功能,在行支气管舒张试验后,应用常规肺功能测定方法和IOS肺功能测定方法先后测定肺通气功能和呼吸阻抗。结果吸入沙丁胺醇气雾剂15分钟后与用药前比较,用力肺活量(FVC)、第1秒用力呼气容积(FEV1)、呼出25%肺活量时最大呼气流量(FEV25)、呼出50%肺活量时最大呼气流量(FEF50)均明显增加,分别为FVC(2.74±0.79)Lvs(2.41±0.79)L,FEV1(1.65±0.53)Lvs(1.38±0.44)L,FEV1(1.65±0.53)Lvs(1.38±0.44)L,FEV25(2.18±1.72)L/svs(1.76±1.47)L/s,PEF50(1.21±1.04)L/svs(0.91±0.90)L/s(均P<0.01),治疗后IOS指标呼吸阻抗(Zrs)、5Hz振荡频率时黏性阻力(R5)、20Hz振荡频率时黏性阻力(R20)、共振频率(Fres)比治疗前均明显下降,分别为Zrs(0.52±0.23)kPa.L-1.s-1vs(0.73±0.37)kPa.L-1.s-1,R5(0.45±0.16)kPa.L-1.s-1vs(0.65±0.19)kPa.L-1.s-1,R20(0.40±0.12)kPa.L-1.s-1vs(0.50±0.10)kPa.L-1.s-1,X5(0.27±0.08)kPa.L-1.s-1vs(0.40±0.11)kPa.L-1.s-1,Fres(17.20±3.03)Hzvs(25.18±5.51)Hz(均P<0.01)。结论 IOS肺功能测定可客观地反映气道阻塞性疾病的实际情况,应用于支气管舒张试验是判断及鉴别诊断哮喘的一项敏感而可靠方法 ,在中高度海拔地区具有良好的临床应用前景。

关 键 词:哮喘  高海拔  呼吸功能试验  脉冲振荡技术

Comparative study of IOS test and routine pulmonary function test at moderate altitude area
TUO Ya-jun,DUO Jie,YANG Xiao-ying,GU Yu-hai. Comparative study of IOS test and routine pulmonary function test at moderate altitude area[J]. Clinical Focus, 2010, 25(15): 1298-1300
Authors:TUO Ya-jun  DUO Jie  YANG Xiao-ying  GU Yu-hai
Affiliation:Department of Respiratory Medicine,Qinghai Provincal People's Hospital,Xining 810007,China
Abstract:Objective To study the clinical value of impulse oscillometry(IOS) test in the early diagnosis of bronchial asthma at moderate altitude area,and study the correlation between IOS and routine pulmonary function test,to research whether IOS can be a sensitive index for the disease.Methods The pulmonary function was measured with IOS in 100 cases with bronchial asthma at acute attack stage.The pulmonary ventilation function and impedance of respiratory system were measured by using IOS test and routine pulmonary function test after bronchodilation test.Results The forced vital capacity(FVC),forced expiratory volume in one second(FEV1),maximal expiratory flow in 25% vital capacity(FEV25) and maximal expiratory flow in 50% vital capacity(FEF50) significantly increased,FVC(2.74±0.79) L vs (2.41±0.79) L,FEV1(1.65±0.53) L vs (1.38±0.44) L,FEV1(1.65±0.53)L vs (1.38±0.44) L,FEV25(2.18±1.72) L/s vs (1.76±1.47) L/s,PEF50(1.21±1.04) L/s vs (0.91±0.90) L/s,respectively(all P0.01),the respiratory impedance(Zrs),respiratory resistance at 5 Hz(R5),respiratory resistance at 20 Hz(R20) and resonance frequency(Fres) significantly decreased(P0.01),and reactance at 5 Hz(X5) significantly increased,Zrs(0.52±0.23) kPa·L-1·s-1 vs (0.73±0.37)kPa·L-1·s-1,R5(0.45±0.16) kPa·L-1·s-1 vs (0.65±0.19) kPa·L-1·s-1,reactance at 20 Hz(R20)(0.40±0.12) kPa·L-1·s-1 vs (0.50±0.10) kPa·L-1·s-1,X5(0.27±0.08) kPa·L-1·s-1 vs (0.40±0.11) kPa·L-1·s-1,Fres(17.20±3.03) Hz vs (25.18±5.51) Hz,respectively(all P0.01).There was significant correlation between the improvement rate of FEV1 and the changes of Zrs,R5,R20 and Fres in the impedance of respiratory system before and after the bronchodilation test.Conclusion The actual situation of airway obstructive disease could be described objectively by IOS test,which proved a sensitive and reliable method used in the bronchodilation test.It should have a promising future in clinical application at moderate altitude area.
Keywords:asthma  moderate altitude  respiratory function test  IOS
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