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中华危重症医学杂志(电子版) ›› 2016, Vol. 09 ›› Issue (05) : 328 -333. doi: 10.3877/cma.j.issn.1674-6880.2016.05.008

所属专题: 文献

论著

舌下微循环变化在猪失血严重程度评估中的应用价值
黄增1, 徐杰丰1, 陈国锋1, 徐洪铭1, 方雅1, 屠海霞1, 李子龙1,()   
  1. 1. 315400 浙江余姚,宁波大学医学院附属余姚市人民医院急诊科
  • 收稿日期:2016-03-14 出版日期:2016-10-01
  • 通信作者: 李子龙
  • 基金资助:
    浙江省医药卫生科技计划项目(2013KYA191)

Value of sublingual microcirculation on hemorrhage severity in the pig

Zeng Huang1, Jiefeng Xu1, Guofeng Chen1, Hongming Xu1, Ya Fang1, Haixia Tu1, Zilong Li1,()   

  1. 1. Department of Emergency Medicine, Yuyao People's Hospital, Medical School of Ningbo University, Yuyao 315400, China
  • Received:2016-03-14 Published:2016-10-01
  • Corresponding author: Zilong Li
  • About author:
    Corresponding author: Li Zilong, Email:
引用本文:

黄增, 徐杰丰, 陈国锋, 徐洪铭, 方雅, 屠海霞, 李子龙. 舌下微循环变化在猪失血严重程度评估中的应用价值[J]. 中华危重症医学杂志(电子版), 2016, 09(05): 328-333.

Zeng Huang, Jiefeng Xu, Guofeng Chen, Hongming Xu, Ya Fang, Haixia Tu, Zilong Li. Value of sublingual microcirculation on hemorrhage severity in the pig[J]. Chinese Journal of Critical Care Medicine(Electronic Edition), 2016, 09(05): 328-333.

目的

探讨舌下微循环变化在猪失血严重程度评估中的应用价值。

方法

健康雄性白猪20只,实验猪的总血容量被评估为70 ml/kg,根据失血比例的不同分为4组:对照组、25%失血组、35%失血组和45%失血组,每组5只。比较各组动物失血前体质量、心率、平均动脉压、心输出量、血乳酸及微血管流动指数(MFI)和灌注血管密度(PVD)变化,并分别于失血后30 min、1 h、2 h、3 h、4 h,评估动物的平均动脉压、心输出量、血乳酸、MFI及PVD的变化。

结果

各组动物失血前体质量、心率、平均动脉压、心输出量、血乳酸、MFI及PVD比较,差异均无统计学意义(F = 0.156、0.260、0.467、0.417、0.434、1.778、0.149,P均> 0.05)。随着各组动物失血量的增加,平均动脉压及心输出量于失血后30 min[(117 ± 8)、(56 ± 10)、(45 ± 4)、(31 ± 5)mmHg,(4.80 ± 0.54)、(3.32 ± 0.32)、(2.35 ± 0.37)、(1.67 ± 0.15)L/min]及失血后1 h [(123 ± 4)、(89 ± 6)、(67 ± 8)、(52 ± 8)mmHg,(4.79 ± 0.63)、(3.99 ± 0.37)、(2.75 ± 0.35)、(2.05 ± 0.39)L/min]逐渐下降(P均< 0.05),血乳酸于失血后1 h逐渐增加[(1.12 ± 0.33)、(2.10 ± 0.25)、(3.74 ± 1.38)、(5.88 ± 1.48)mmol/L,P均< 0.05],MFI[(2.92 ± 0.09)、(2.47 ± 0.28)、(1.30 ± 0.14)、(0.87 ± 0.27),P均< 0.05]及PVD水平[(4.95 ± 0.12)、(4.20 ± 0.54)、(2.98 ± 0.10)、(2.64 ± 0.31),P均< 0.05]于失血后30 min逐渐下降。Pearson相关性分析显示MFI及PVD与平均动脉压(r = 0.903、0.923,P均< 0.05)、心输出量(r = 0.919、0.919,P均< 0.05)呈显著正相关,与乳酸水平呈显著负相关(r = -0.706、-0.745,P均< 0.05)。

结论

舌下微循环监测可实时反映机体失血程度,有助于判断失血严重程度。

Objective

To investigate the value of sublingual microcirculation on hemorrhage severity in the pig.

Methods

Twenty healthy male pigs were randomized into four groups according to the percentage of blood loss volume (the total blood volume was assessed for 70 ml/kg): sham group, 25% blood loss group, 35% blood loss group and 45% blood loss group, 5 pigs in each group. The levels of mean arterial pressure, cardiac output, blood lactic acid, microvascular flow index (MFI) and perfused vessel density (PVD) were regularly evaluated on 30 min, 1 h, 2 h, 3 h, and 4 h after hemorrhage. The body mass, heart rate, mean arterial pressure, cardiac output, blood lactic acid, MFI and PVD before hemorrhage were compared.

Results

The body mass, heart rate, mean arterial pressure, cardiac output, blood lactic acid, MFI and PVD before hemorrhage all showed no significant differences among four groups (F = 0.156, 0.260, 0.467, 0.417, 0.434, 1.778, 0.149; all P> 0.05). When the volume of blood loss was gradually increased, the mean arterial pressure and cardiac output on 30 min [(117 ± 8), (56 ± 10), (45 ± 4), (31 ± 5) mmHg, (4.80 ± 0.54), (3.32 ± 0.32), (2.35 ± 0.37), (1.67 ± 0.15) L/min], 1 h [(123 ± 4), (89 ± 6), (67 ± 8), (52 ± 8) mmHg, (4.79 ± 0.63), (3.99 ± 0.37), (2.75 ± 0.35), (2.05 ± 0.39) L/min] after hemorrhage decreased (all P< 0.05), blood lactic acid on 1 h after hemorrhage increased [(1.12 ± 0.33), (2.10 ± 0.25), (3.74 ± 1.38), (5.88 ± 1.48) mmol/L; all P< 0.05], and MFI [(2.92 ± 0.09), (2.47 ± 0.28), (1.30 ± 0.14), (0.87 ± 0.27); all P< 0.05] and PVD [(4.95 ± 0.12), (4.20 ± 0.54), (2.98 ± 0.10), (2.64 ± 0.31); all P< 0.05] on 30 min after hemorrhage declined. Pearson correlationanalysis showed that MFI and PVD were positively associated with mean arterial pressure (r = 0.903, 0.923; all P< 0.05) and cardiac output (r = 0.919, 0.919; all P< 0.05), and negatively correlated with blood lactic acid (r = -0.706, -0.745; all P< 0.05).

Conclusion

Sublingual microcirculation can indicate the changes of blood loss in real time, and effectively predict the severity of hemorrhage.

表1 各组动物的基本特征比较(±s
表2 各组动物失血后各时间MAP的变化(mmHg,±s
表3 各组动物失血后各时间心输出量的变化(L/min,±s
表4 各组动物失血后各时间乳酸水平的变化(mmol/L,±s
表5 各组动物失血后各时间MFI的变化(±s
表6 各组动物失血后各时间PVD的变化(±s
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