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中华危重症医学杂志(电子版) ›› 2017, Vol. 10 ›› Issue (06) : 391 -396. doi: 10.3877/cma.j.issn.1674-6880.2017.06.006

所属专题: 文献

论著

下腔静脉变异度在冠状动脉搭桥术后患者容量反应性评估中的作用
肖继来1, 聂帅1, 章文豪1, 宋晓春1, 施乾坤1, 赵谊1, 徐巧莲1, 穆心苇1,()   
  1. 1. 210006 南京,南京医科大学附属南京医院重症医学科
  • 收稿日期:2017-03-08 出版日期:2017-12-01
  • 通信作者: 穆心苇
  • 基金资助:
    南京市卫生和计划生育委员会计划项目(YKK15099)

Effect of inferior vena cava variability in the assessment of volumetric reactivity in patients with coronary artery bypass grafting

Jilai Xiao1, Shuai Nie1, Wenhao Zhang1, Xiaochun Song1, Qiankun Shi1, Yi Zhao1, Qiaolian Xu1, Xinwei Mu1,()   

  1. 1. Department of Critical Care Medicine, Nanjing Hospital Affiliated to Nanjing Medical University, Nanjing 210006, China
  • Received:2017-03-08 Published:2017-12-01
  • Corresponding author: Xinwei Mu
  • About author:
    Corresponding author: Mu Xinwei, Email:
引用本文:

肖继来, 聂帅, 章文豪, 宋晓春, 施乾坤, 赵谊, 徐巧莲, 穆心苇. 下腔静脉变异度在冠状动脉搭桥术后患者容量反应性评估中的作用[J]. 中华危重症医学杂志(电子版), 2017, 10(06): 391-396.

Jilai Xiao, Shuai Nie, Wenhao Zhang, Xiaochun Song, Qiankun Shi, Yi Zhao, Qiaolian Xu, Xinwei Mu. Effect of inferior vena cava variability in the assessment of volumetric reactivity in patients with coronary artery bypass grafting[J]. Chinese Journal of Critical Care Medicine(Electronic Edition), 2017, 10(06): 391-396.

目的

探讨下腔静脉变异度(IVCV)在冠状动脉搭桥术(CABG)后患者容量反应性评估中的指导意义。

方法

选取22例冠状动脉搭桥术后放置肺动脉漂浮导管(PAC)的机械通气患者,在入ICU病房加强监护的第1小时分别进行被动抬腿试验(PLR),将PLR后心输出量上升≥ 15%的患者纳入容量反应阳性组,心输出量上升< 15%的患者纳入容量反应阴性组。记录两组患者PLR前后的心率、动脉血压、中心静脉压、肺动脉楔压、心输出量、右室舒张末期容积指数(EDVI)、每搏输出量等血流动力学参数及心脏超声指标包括下腔静脉内径最大值(IVCmax)、下腔静脉内径最小值(IVCmin)和IVCV水平。对两组患者的一般资料、血流动力学参数以及心脏超声指标进行比较,采用受试者工作特征曲线(ROC)评价IVCV对容量反应性的预测价值。

结果

两组患者年龄[(64 ± 8)岁vs.(69 ± 6)岁]、性别比(10/6 vs. 3/3)、急性病生理学和长期健康评价(APACHE)Ⅱ评分[(11.6 ± 2.7)分vs.(12.7 ± 2.4)分]、体外循环时间[(52 ± 32)min vs.(68 ± 34)min]、机械通气时间[(11 ± 5)h vs.(12 ± 6)h]及住ICU时间[(1.8 ± 1.0)d vs.(1.7 ± 0.5)d]等方面比较,差异均无统计学意义(P均> 0.05)。容量反应阳性组患者PLR前心输出量[(4.5 ± 0.8)mL/m2 vs.(5.0 ± 0.8)mL/m2]、每搏输出量[(56 ± 9)mL vs.(62 ± 11)mL]及IVCmin[(1.61 ± 0.28)cm vs.(9 ± 3)cm]水平较容量反应阴性组均显著降低(t = 2.586、2.236、4.217,P = 0.012、0.021、< 0.001);而IVCV[(21 ± 7)% vs.(68 ± 34)%]水平比较发现,容量反应阳性组高于容量反应阴性组(t = 9.242,P < 0.001)。ROC曲线分析显示IVCV的曲线下面积为0.941(95%CI:0.879~1.000,P < 0.001),其对CABG后患者容量反应性具有预测价值。

结论

IVCV可以作为CABG后患者容量反应性预测的有效指标。

Objective

To investigate the significance of inferior vena cava variability (IVCV) in the evaluation of volumetric reactivity in patients with coronary artery bypass grafting (CABG).

Methods

Totally 22 mechanical ventilation patients with pulmonary artery catheter (PAC) after CABG were collected, and the passive leg raising (PLR) tests were carried out on them in the first hour of intensive monitoring in the ICU ward. Patients with elevated cardiac output ≥ 15% after PLR were included in the volume-reactive positive group, while patients with elevated cardiac output < 15% were included in the volume-reactive negative group. The hemodynamic parameters of heart rate, arterial blood pressure, central venous pressure, pulmonary artery wedge pressure, cardiac output, end-diastolic volume index (EDVI), stroke volume, and the echocardiographic indexes of the maximum diameter of the inferior vena cava (IVCmax), the minimum diameter of the inferior vena cava (IVCmin) and the IVCV expression were all recorded before and after PLR in both groups. The general data, hemodynamic parameters and echocardiographic indexes of the two groups were compared, and then the predictive value of IVCV to volumetric reactivity was evaluated by the receiver operating characteristic curve (ROC).

Results

The age [(64 ± 8) years vs. (69 ± 6) years], the sex ratio (10/6 vs. 3/3) , the acute physiology and chronic health evaluation (APACHE) Ⅱ scores [(11.6 ± 2.7) vs. (12.7 ± 2.4)], the extracorporeal circulation time [(52 ± 32) min vs. (68 ± 34) min], the mechanical ventilation time [(11 ± 5) h vs. (12 ± 6) h] and the ICU residence time [(1.8 ± 1.0) d vs. (1.7 ± 0.5) d] all showed no statistically significant difference between the two groups (all P > 0.05). The expressions of cardiac output [(4.5 ± 0.8) mL/m2 vs. (5.0 ± 0.8) mL/m2], the stroke volume [(56 ± 9) mL vs. (62 ± 11) mL] and the IVCmin [(1.61 ± 0.28) cm vs. (9 ± 3) cm] before PLR were all significantly lower in the volume-reactive positive group compared to the volume-reactive negative group (t = 2.586, 2.236, 4.217; P = 0.012, 0.021, < 0.001). Meanwhile, the expression of IVCV [(21 ± 7)% vs. (68 ± 34)%] was higher in the volume-reactive positive group (t = 9.242, P < 0. 001). ROC curve analysis showed that the area under the curve of IVCV was 0.941 (95%CI: 0.879~1.000, P < 0.001) and it had predictive value for volumetric reactivity of patients after CABG.

Conclusion

IVCV could be used as an effective indicator for volumetric reactivity prediction in patients after CABG.

表1 两组行CABG术患者一般资料比较( ± s
表2 两组行CABG术患者PLR前血流动力学参数及心脏超声指标比较( ± s
表3 中心静脉压、肺动脉楔压、EDVI和IVCV对容量反应性预测能力的ROC曲线分析
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