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作 者:陈鸣宇[1] 王鹏磊 王希振 魏钦贤 刘宝娟[2] 刘春丽[2]
机构地区:[1]广州医科大学,510182 [2]广州医科大学附属第一医院广州呼吸疾病研究所,510120
出 处:《国际呼吸杂志》2014年第13期1010-1013,共4页International Journal of Respiration
基 金:广州市科信局珠江新星项目(201IJ2200005)
摘 要:目的 探讨肉桂醛咳嗽激发试验的方法.方法 采用吸气触发的定量吸入,对35名健康志愿者及25例咳嗽患者行肉桂醛咳嗽激发试验.受试者初步吸入雾化浓度倍增(50,100,200,400,800 mmol/L)的肉桂醛溶液,记录测试期间咳嗽次数.诱发产生≥2和≥5次咳嗽的浓度(C2,C5),用比对数值lg C2和lg C5来判断咳嗽反应的敏感性,并测定受试者前、后肺功能.结果 所有受试者中仅1名出现轻微不适,有恶心感.两组受试者咳嗽激发前、后肺通气指标FEV1、FVC、FEV1/FVC,{[(3.35±0.53) L,(3.35±0.52)L],[(2.76±0.82) L,(2.71±0.73)L]},{[(3.72±0.70) L,(3.71±0.71)L],[(3.30±0.78) L,(3.29±0.76)L]},{[(90.6±5.42)%,(90.9±4.92)%],[(83.6±4.45)%,(82.4+5.04)%]},差异无统计学意义(P值均>0.05).咳嗽敏感性lg C2和lg C5值分别为[2.48±0.43,2.72±0.35].结合本实验实际吸入浓度,估计肉桂醛咳嗽敏感性正常参考值C2≥200 mmol/L,C5≥400 mmol/L.咳嗽敏感性lg C2和lg C5与性别差异有统计学意义(P<0.05).结论定量吸入肉桂醛咳嗽激发试验,对正常咳嗽敏感性的建立有参考意义.Objective To assess the application of cinnamaldehyde cough provocation test.Methods Cinnamaldehyde inhalation cough challenge test by dosimeter method was performed on 35 health volunteers and 25 cough patients.Each subject inhaled doubling concentrations of cinnamaldehyde (50,100,200,400,800 mmol/L) by a breath-activated dosimeter until the concentration induceing [Inducing] five or more coughs (C5) was reached.The lg C2 and lg C5 were calculated as the cough reflex sensitivity.General lung ventilation was measured before and after the cough provocation test.Results There was no serious side effect of the test in all subjects,only one subject has a sense of nausea.Before and after the test,the provocation the values of FEV1,FVC,FEV1/FVC,{[(3.35 ± 0.53) L,(3.35 ± 0.52) L],[(2.76±0.82) L,(2.71±0.73) L]},{[(3.72±0.70) L,(3.71±0.71) L],[(3.30±0.78) L,(3.29±0.76) L]},{[(90.6±5.42) %,(90.9±4.92) %],[(83.6±4.45) %,(82.4+5.04) %]},showed no significant(P 〈 0.05).The lg C2 and lg C5 value is (2.48 ± 0.43) mmol/L,(2.59 ± 0.39) mmol/L.According to our study,we can know the reference value is C2 ≥200 mmol/L,C5 ≥400 mmol/L.However,cough sensitivity is different with gender.Each group all show significant difference (all P 〈0.05).Conclusions Cinnamaldehyde cough provocation test by dosimeter method is of benefit for the development of cough reflex sensitivity.
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