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中华重症医学电子杂志 ›› 2022, Vol. 08 ›› Issue (01) : 23 -30. doi: 10.3877/cma.j.issn.2096-1537.2022.01.003

临床研究

P(cv-a)CO2/C(a-v)O2 ratio在感染性休克早期目标导向性复苏中的潜在价值
徐丹斌1, 苏龙翔2, 巴音查汗·博然衣3, 王璐3, 木塔力甫·买合木提3, 王静静3, 王彩虹3, 王舸楠4, 隆云2,()   
  1. 1. 830000 乌鲁木齐,新疆维吾尔自治区人民医院重症医学科;100730 北京,中国医学科学院 北京协和医学院
    2. 100730 北京,中国医学科学院 北京协和医学院
    3. 830000 乌鲁木齐,新疆维吾尔自治区人民医院重症医学科
    4. 300457 天津科技大学生物工程学院
  • 收稿日期:2021-08-04 出版日期:2022-02-28
  • 通信作者: 隆云
  • 基金资助:
    新疆维吾尔自治区自然科学基金面上项目(2018D01C107)

Potential clinical value of P(cv-a)CO2/C(a-v)O2 ratio in early goal-directed resuscitation of septic shock

Danbin Xu1, Longxiang Su2, Bayinchahan·Boranyi3, Lu Wang3, Mutalifu·Maihemuti3, Jingjing Wang3, Caihong Wang3, Genan Wang4, Yun Long2,()   

  1. 1. Department of Intensive Care Unit, the People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830000, China;Department of Critical Care Medicine, Peking Union Medical College Hospital, Beijing 100730, China
    2. Department of Critical Care Medicine, Peking Union Medical College Hospital, Beijing 100730, China
    3. Department of Intensive Care Unit, the People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830000, China
    4. College of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China
  • Received:2021-08-04 Published:2022-02-28
  • Corresponding author: Yun Long
引用本文:

徐丹斌, 苏龙翔, 巴音查汗·博然衣, 王璐, 木塔力甫·买合木提, 王静静, 王彩虹, 王舸楠, 隆云. P(cv-a)CO2/C(a-v)O2 ratio在感染性休克早期目标导向性复苏中的潜在价值[J]. 中华重症医学电子杂志, 2022, 08(01): 23-30.

Danbin Xu, Longxiang Su, Bayinchahan·Boranyi, Lu Wang, Mutalifu·Maihemuti, Jingjing Wang, Caihong Wang, Genan Wang, Yun Long. Potential clinical value of P(cv-a)CO2/C(a-v)O2 ratio in early goal-directed resuscitation of septic shock[J]. Chinese Journal of Critical Care & Intensive Care Medicine(Electronic Edition), 2022, 08(01): 23-30.

目的

探讨中心静脉血二氧化碳分压-动脉血二氧化碳分压差/动脉血氧含量-静脉血氧含量差[P(cv-a)CO2/C(a-v)O2 ratio]在感染性休克早期目标导向性复苏中的应用。

方法

收集自2018年6月至2019年6月在新疆维吾尔自治区人民医院ICU接受治疗的感染性休克患者44例。根据P(cv-a)CO2/C(a-v)O2 ratio值将患者分为A、B 2组,其中A组为P(cv-a)CO2/C(a-v)O2 ratio<1.6,B组为P(cv-a)CO2/C(a-v)O2 ratio≥1.6。比较2组患者的基线资料[性别、年龄、感染部位、急性生理学与慢性健康状况(APACHE Ⅱ)评分与序贯器官衰竭评估(SOFA)评分]、基本参数[中心静脉压(CVP)、平均动脉压(MAP)、小时尿量、血管活性药物使用量、24 h出入量、血红蛋白、乳酸水平]、氧代谢参数[0、6、12、24 h的动脉血氧分压(PaO2),动脉血氧饱和度(SaO2),中心静脉血氧分压(PcvO2),中心静脉血氧饱和度(ScvO2),P(cv-a)CO2(gap),P(cv-a)CO2/C(a-v)O2 ratio,氧合指数,氧摄取率,及6、12 h的乳酸清除率]及转归[血管活性药物使用时间,机械通气时间,24、48、72、96 h的APACHEⅡ评分和SOFA评分,住ICU时间,住院时间,28 d病死率]等数据。

结果

2组患者基线资料比较差异无统计学意义(P>0.05)。0 h 2组间P(cv-a)CO2/C(a-v)O2 ratio、氧分压、氧合指数、氧摄取率、乳酸、P(cv-a)CO2(gap)比较,差异均有统计学意义(P<0.05);6 h 2组间乳酸清除率比较,差异有统计学意义(P<0.05)。2组间1、3、5、7 d APACHE Ⅱ评分、SOFA评分、血管活性药物使用时间(去甲肾上腺素)、机械通气时间、住ICU时间、住院时间及28 d病死率比较,差异均无统计学意义(P>0.05)。

结论

P(cv-a)CO2/C(a-v)O2 ratio在感染性休克早期目标导向性复苏中可作为补充指标,评价组织乏氧代谢,指导治疗。

Objective

To investigate the application possibility of septic shock's early goal-directed resuscitation therapy by monitoring the gap of central venous partial pressure of carbon dioxide (PcvCO2) and arterial partial pressure of carbon dioxide (PaCO2)/the gap of arterial oxygen content (CaO2) and venous oxygen content (CvO2) [P(cv-a)CO2/C(a-v)O2].

Methods

A total of 44 samples of patients who received treatment in the intensive care department with septic shock in our hospital from June 2018 to June 2019 were collected and divided into two groups, according to the P(cv-a)CO2/C(a-v)O2 ratio, the patients' P(cv-a)CO2/C(a-v)O2 ratio<1.6 were divided into group A, and the patients' P(cv-a)CO2/C(a-v)O2 ratio≥1.6 were divided into group B. The patients were monitored immediately after the establishment of superior vena cave in the ICU, and the comparisons between patient common material, basic parameters, oxygen metabolic parameters, and outcome were conducted.

Results

There was no significant difference at baseline between two groups (P>0.05), but significantly difference were observed in P(cv-a)CO2/C(a-v)O2 ratio, arterial oxygen partial pressure, lactic acid, P(cv-a)CO2(gap) at 0 h (P<0.05), and lactate clearance rate between two groups at 6 h (P<0.05). The APACHEⅡ score and SOFA score at 1, 3, 5, 7 d did not have a significant difference (P>0.05), and the duration of vasoactive drugs (norepinephrine), mechanical ventilation, length of stay, and 28-day mortality also showed no differences (P>0.05).

Conclusion

P(cv-a)CO2/C(a-v)O2 ratio can be used as a supplementary index to evaluate tissue hypoxia metabolism and guide treatment.

表1 2组脓毒症休克患者入ICU时基线资料比较
表2 2组脓毒症休克患者基本参数比较(
xˉ
±s)
基本参数 A组(23例) B组(21例) 统计值 P
CVP(mmHg)

0 h

8.96±5.83 9.96±4.20 t=0.767 0.452

6 h

9.03±4.86 9.54±4.54 t=0.582 0.567

12 h

8.88±5.36 10.73±5.17 t=1.212 0.240

24 h

9.46±4.46 9.73±5.58 t=0.227 0.822
MAP(mmHg)

0 h

81.81±16.56 86.23±11.93 t=0.056 0.956

6 h

86.22±17.62 89.00±13.23 t=0.433 0.670

12 h

87.00±15.97 89.88±9.82 t=1.070 0.298

24 h

92.81±19.29 91.04±11.77 t=0.585 0.565
小时尿量(ml/h)

0 h

116.41±117.61 126.38±76.77 t=0.038 0.970

6 h

125.63±78.41 136.58±73.58 t=0.852 0.404

12 h

161.41±109.36 119.62±74.87 t=1.988 0.061

24 h

124.06±76.07 145.19±95.04 t=0.853 0.404
血管活性药物使用量[μg/(kg·min)]

0 h

0.14±0.12 0.19±0.27 t=1.028 0.316

6 h

0.15±0.16 0.20±0.27 t=0.821 0.421

12 h

0.14±0.16 0.18±0.16 t=0.732 0.473

24 h

0.12±0.11 0.14±0.13 t=0.890 0.384
24 h出入量[ml,MQ25Q75)]

入量

4590.00(3866.01,5390.51) 4940.00(4236.48,5730.18) Z=0.493 0.628

出量

3658.00(3180.67,4787.58) 3953.00(3341.55,5186.74) Z=0.482 0.635
血红蛋白(g/L)

0 h

10.71±2.91 9.97±2.67 t=1.024 0.318

6 h

10.13±2.81 10.01±2.83 t=0.314 0.757

12 h

10.23±2.60 9.44±2.31 t=1.426 0.169

24 h

10.19±2.59 9.62±2.18 t=1.331 0.198
乳酸(mmol/L)

0 h

2.46(2.02,3.89) 3.21(2.71,4.26) Z=2.245 0.037

6 h

2.80(2.65,4.22) 2.04(1.99,3.81) Z=1.795 0.089

12 h

2.42(2.30,3.70) 1.99(1.78,2.83) Z=1.464 0.160

24 h

1.95(1.71,2.47) 1.450(1.31,2.11) Z=1.269 0.220
表3 2组脓毒症休克患者氧代谢基本参数比较
基本参数 A组(23例) B组(21例) 统计值 P
PaO2(mmHg)

0 h

88.09±26.60 114.60±49.04 t=2.748 0.013

6 h

103.00±48.38 107.60±41.98 t=0.350 0.730

12 h

99.52±30.86 102.05±29.68 t=0.418 0.681

24 h

95.91±26.04 108.75±27.90 t=1.465 0.159
SaO2(%)

0 h

96.00(90.20,97.17) 98.00(94.49,98.30) Z=1.454 0.162

6 h

98.00(94.36,97.47) 98.00(93.97,98.12) Z=0.039 0.969

12 h

97.00(95.41,97.63) 97.50(95.51,97.88) Z=0.285 0.779

24 h

98.00(96.12,97.70) 98.50(96.75,98.55) Z=1.372 0.186
PcvO2(mmHg)

0 h

35.26±7.48 39.45±8.82 t=1.944 0.067

6 h

39.22±7.90 37.70±5.61 t=0.489 0.630

12 h

38.13±7.44 38.90±5.71 t=0.449 0.658

24 h

40.04±8.02 40.25±4.71 t=0.095 0.925
ScvO2(%)

0 h

64.63±13.41 69.58±13.26 t=1.380 0.184

6 h

69.78±8.92 69.60±10.41 t=0.126 0.901

12 h

69.66±9.74 69.45±7.54 t=0.035 0.972

24 h

71.50±10.05 72.85±6.70 t=0.150 0.882
P(cv-a)CO2(mmHg)

0 h

4.82±2.76 8.20±2.55 t=4.173 0.001

6 h

6.52±3.68 5.85±2.83 t=1.347 0.194

12 h

5.74±3.61 6.15±3.67 t=0.281 0.782

24 h

6.87±3.65 6.90±3.32 t=0.221 0.827
C(a-v)O2(ml/100 ml)

0 h

4.50±1.79 3.79±1.45 t=1.321 0.203

6 h

3.77±1.58 3.68±1.37 t=0.238 0.814

12 h

3.97±1.75 3.41±0.72 t=1.301 0.209

24 h

3.50±1.77 3.30±1.03 t=0.444 0.662
P(v-a)CO2/C(a-v)O2 ratio

0 h

1.04±0.37 2.33±0.59 t=8.270 0.001

6 h

1.94±1.10 1.71±0.89 t=1.369 0.187

12 h

1.40±0.97 1.76±0.97 t=0.357 0.725

24 h

2.00±1.33 2.17±1.40 t=0.137 0.892
氧合指数

0 h

171.50±83.28 232.55±92.48 t=2.296 0.033

6 h

208.97±113.37 231.42±106.05 t=0.430 0.672

12 h

190.90±76.35 230.16±95.37 t=0.817 0.424

24 h

186.01±72.01 238.27±136.09 t=2.095 0.050
氧摄取率(%)

0 h

35.45±13.75 27.70±11.81 t=2.198 0.041

6 h

30.18±10.18 33.60±19.93 t=0.951 0.353

12 h

29.20±11.14 30.12±8.09 t=0.272 0.788

24 h

27.26±9.84 28.02±6.27 t=0.025 0.980
乳酸清除率[%,MQ25Q75)]

6 h

-16.67(-80.28,-3.93) 25.30(3.20,33.91) Z=3.679 0.001

12 h

26.67(-9.68,27.53) 14.57(-25.57,25.17) Z=0.758 0.458
表4 2组脓毒症休克患者转归情况比较[MQ25Q75)]
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