摘要目的 探讨经口插管雾化吸入不同剂量布地奈德与静注地塞米松对慢性阻塞性肺病急性加重期(AECOPD)机械通气患者支气管肺泡灌洗液(BALF)中白介素-8(IL-8)、C-反应蛋白(CRP)和前降钙素原(PCT)的影响。方法 采用前瞻性、随机、对照研究设计,收集2008年1月至2010年9月绍兴市人民医院ICU符合2007年中华医学会呼吸病学分会慢性阻塞性肺疾病学组《慢性阻塞性肺疾病诊治指南》AECOPD机械通气患者共90例,在呼吸机支持、抗炎、化痰、扩张细支气管等常规治疗的基础上,随机(随机数字法)分为3组,分别给予布地奈德口插管内雾化吸入2 mg/d、4 mg/d和静注地塞米松2.5 mg q12 h。采用ELISA法测定三组患者在治疗初始、治疗3d以及治疗7d支气管肺泡灌洗液与血清IL-8、PCT和CRP值变化。所有数据均采用SPSS 13.0处理,组间分析采用方差分析,因素之间的相关性分析采用Pearson直线相关分析。结果 在治疗3,7d后,支气管肺泡灌洗液IL-8水平呈现不同程度下降,吸入布地奈德(4 mg/d)组＞吸入布地奈德(2 mg/d)组＞静滴地塞米松组,差异具有统计学意义(P＜0.05);血浆IL-8水平虽亦呈现相同趋势,三组在各时相点差异无统计学意义。CRP和PCT在支气管肺泡灌洗液和血浆无类似显著变化。治疗3,7d后支气管肺泡灌洗液IL-8水平与患者机械通气时间呈正相关。结论 通过口插管雾化吸入布地奈德与静注地塞米松相比,可较显著下调AECOPD机械通气患者支气管肺泡灌洗液IL-8水平,而对CRP和PCT的影响均不明显。支气管肺泡灌洗液IL-8水平或可作为评价AECOPD病情预后的一个指标。

abstractsObjective To investigate the effects of budesonide inhaled on the levels of interleukin-8 (IL-8), C-reactive protein (CRP) and procalcitonin (PCT) in bronchoalveolar lavage fluid (BALF) of patients with AECOPD treated by using inhalation of budesonide in different doses or by using injection of dexamethasone. Methods Ninety AECOPD patients with mechanical ventilation in ICU ward were enrolled from Jan. 2008 through Sep. 2010. All patients were selected in this study as per the criteria of AECOPD set by the Chinese Medical Association. Ninety AECOPD patients treated with routine therapy were randomly (random number) divided into 3 groups. The patients of group A were given budesonide 2 mg inhaled 1 time/d. The patients of group B was given budesonide 4 mg inhaled 1 time/d. The patients of group C had dexamethasone 2. 5 mg injected 1 time/12h. The changes of IL-8, PCT and CRP in both BALF and serum were respectively detected in three groups at the beginning of treatment, and 3 days and 7days after treatment. The detected data of variables were analyzed by SPSS 13.0 package. Results The level of IL-8 in BALF declined in 3days and 7days after treatment, and the magnitude of decrease in the following order:Group B ( budesonide 4mg/d) ＞ Group A ( budesonide 2 mg/d) ＞ Group C ( intravenous dexamethasone)with significant differences among them ( P ＜ 0. 05 ). The decrease in IL-8 in serum showed the similar trend, but there were no statistical differences among them. The CRP and PCT in both BALF and serum had no significant changes. There was a correlation between the concentration of IL-8 in BALF and the duration of mechanical ventilation. Conclusions The treatment with the inhalation of budesonide could more significantly reduced the IL-8 level in BALF compared with intravenous dexamethasone, whereas the CRP and PCT were not changed. The dynamic changes of IL-8 in BALF might be used as an indicator of prognosis in AECOPD patients with mechanical ventilation.