Abstract
目的 研究部分液体通气对急性肺损伤幼猪心肺功能的影响.方法 12只上海小白猪,随机分为对照组(n=6)和治疗组(n=6).内毒素60 μg/kg静脉维持诱导肺损伤.治疗组成模后予高氟化碳(C10F18)10 ml/kg灌入气管.于基础状态,成模时,成模后1、2、4 h分别行血气分析、记录心率、血压、呼吸、肺动态顺应性、气道阻力、脉搏轮廓心输出量、全身血管阻力.结果 两组动物成模时氧合指数、肺动态顺应性、脉搏轮廓心输出量均明显下降,各参数组间比较无统计学差异.2 h后对照组氧合指数193.8±47.5,肺动态顺应性(0.8±1.7) ml/(cm H2O·kg),4 h后心输出量(2.1±0.7) L/min;治疗组2 h后氧合指数为261.5±25.8,肺动态顺应性(1.2±0.7) ml/(cm H2O·kg),4 h后心输出量(3.1±0.2) L/min,较对照组均有改善,差异有显著性(P＜0.05).结论 部分液体通气可明显改善肺损伤动物心肺功能。
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