部分液体通气对内毒素诱导急性肺损伤幼猪炎症反应的影响  被引量:13

The effect of partial liquid ventilation on inflammatory response in piglets with acute lung injury induced bylipopolysaccharide

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作  者:唐瑾[1] 张洁[2] 厉旭光[3] 郭忠良[2] 

机构地区:[1]同济大学附属东方医院中心ICU,上海200120 [2]同济大学附属东方医院呼吸内科,上海200120 [3]宁波大学附属医院重症医学科

出  处:《中华危重病急救医学》2014年第2期74-79,共6页Chinese Critical Care Medicine

基  金:国家自然科学基金面上项目,上海市科委科技计划项目

摘  要:目的动态观察部分液体通气(PLV)对内毒素诱导急性肺损伤(ALI)幼猪促炎/抗炎因子的影响。方法选择12头上海小白猪,按随机数字表法分为单纯机械通气(MV)组和PLV组,每组6头。静脉输注内毒素60μg·kg-1·h-静脉维持2h诱导Au模型。PLV组在MV基础上气管内注入全氟萘烷(PFC)10mL/kg。两组分别于基础状态下和ALI模型制备成功后0、1、2、4h时监测血流动力学、呼吸力学、动脉血气分析等参数,并采用酶联免疫吸附试验(ELISA)动态检测血清白细胞介素(IL-1B、IL-6、IL-8、IL-10)和肿瘤坏死因子-α.(TNF-OL)的水平;光镜下观察肺组织病理学改变,并进行病理学评分。结果PLV组给药后通气和氧合功能逐渐改善,气道阻力下降,在成模4h时各指标与MV组比较差异均有统计学意义[心率(HR,次/rain):144±6比179±9,呼吸频率(RR,次/min):58±4比77±6,平均动脉压(MAP,mmHg,1mmHg=O.133kPa):99±7比75±29,肺顺应性(Cdyn,mL·cmH202·kg-1:1.9±0.3比1.2±0.4,潮气量(VT,mL/kg):7.8±0.4比5.8±0.9,平均气道阻力(Raw,emH20·L-1·S-1):20.5±6.6比35.2±4.0,平均气道压(Paw,emil20,1emil20=0.098kPa):1.0±0.5比3.0±0.9,通气效率指标(VEI):0.18±0.02比0.08±0.02,pH值:7.386±0.143比7.148±0.165,动脉血氧分压(PaO2,mmHg):121.8±12.5比73.6±10.9,动脉血二氧化碳分压(PaCO:,mmHg):39.6±20.3比66.8±23.5,氧合指数(Pa02/FiO:,mmHg):311±35比184±27,P〈O.05或P〈O.01]。两组成模时血清TNF-α.、IL-1β、IL-6、IL-8、IL-10均较基础状态时明显升高,且随时间延长逐渐上升,成模后各时间点PLV组促炎因子明显低于MV组,以4h时最为明显[TNF-α(ng/L):98.4±21.1比178.0±55.0,IL-β(ng/L):142.0±38.0比226.0±55.0,IL-6(ng/LObjective To evaluate the effect of partial liquid ventilation (PLV) on pro-inflammatory and anti-inflammatory factors change in lipopolysaeeharide (LPS)-indnced piglets acute lung injury (ALI). Methods Twelve Shanghai white piglets were randomly divided into mechanical ventilation (MV) group (n = 6 ) and PLV group (n=6). 60 μg'kg-1 ·h-1 LPS were intravenous infused continuously for 2 hours to induce ALI model. PLV model was set on the basis of the MV by endotracheal injection of perfluorodecalin (PFC, 10 mL/kg). The hemodynamie and respiratory parameters such as mechanics and arterial blood gas analysis were monitored at basic condition and after lung injury establishment (0, 1, 2, 4 hours). The serum levels of interleukin (IL-113, IL-6, IL-8, IL-10) and tumor necrosis factor-α (TNF-α) were dynamically monitored by enzyme linked immuuosorbent assay (ELISA). A lung injury score was used to quantify lung tissues change under light microscopic observations. Results Ventilation and oxygenation function were improved gradually after PFC endotracheal injection in PLV group, and there were significant difference compared with MV group at 4 hours Iheart rate (HR, beats/min) : 144 ± 6 vs. 179 ± 9, respiratory rate (RR, beats/min) : 58 ± 4 vs. 77 ± 6, mean arterial blood pressure (MAP, mmHg, 1 mmHg=0.133 kPa) : 99 ± 7 vs. 75 ±29, dynamic lung compliance (Cdyn, mL·cmH20-1·kg-1 ) : 1.9 ± 0.3 vs. 1.2 ± 0.4, tidal volume (VT, mL/kg) : 7.8±0.4 vs. 5.8 ± 0.9, mean airway resistance (Raw, cmH20·L-1 ·s-1): 20.5 ± 6.6 vs. 35.2 ± 4.0, mean airway pressure (Paw, cmH20, 1 cmH20=0.098 kPa): 1.0±0.5 vs. 3.0 ±0.9, ventilation efficacy index (VEI): 0.18 ±0.02 vs. 0.08 ± 0.02, pH value: 7.386 ± 0.143 vs. 7.148 ± 0.165, arterial partial pressure of oxygen (PaOz, mmHg): 121.8 ± 12.5 vs. 73.6 ± 10.9, arterial partial pressure of carbon dioxide (PaCOz, mmHg): 39.6 ± 20.3 vs. 66.8 ± 23.5, oxygenation index �

关 键 词:肺损伤 急性 部分液体通气 机械通气 炎症反应 血流动力学 

分 类 号:R563.8[医药卫生—呼吸系统]

 

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