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中心静脉-动脉二氧化碳分压差在反映感染性休克患者全身组织灌注的价值 被引量:11

Value of central venous - arterial carbon dioxide difference as a index of body tissue perfusion in septic shock patients
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摘要 目的评价中心静脉-动脉二氧化碳分压差[P(CV—a)CO2]在反映感染性休克患者全身组织灌注方面的价值。方法对2009—06~2011—06收住ICU的126例经早期目标导向治疗(EGDT)达标的感染性休克患者进行前瞻性观察研究,测定入组时(T0)的P(cv—a)CO2值,以6mmHg作为其界限,将患者分为低P(CV—a)CO2组(n=68)和高P(CV—a)CO2组(n=58)。测定T0,入组后6、12h(T6、T12)的平均动脉压(MAP)、心率(HR)、心指数(CI)、经皮血氧饱和度(SaO2)、中心静脉氧饱和度(ScvO2)、氧摄取率[ERO2=(SaO2-ScvO2)/SaO2]、P(CV—a)CO2及动脉血乳酸(Lac)。结果在T0低P(CV—a)CO2组的CI明显高于高P(CV—a)CO2组[(4.35±0.90)L/(min·m2)vs(3.14±0.65)L/(min·m2),P〈0.0001),但ScvO2值两组比较差异无统计学意义[(76±4)%vs(75±4)%,P=0.18]。T0~T12,低P(cv—a)CO2组乳酸清除率明显高于高P(CV—a)CO2组[(33±28)%vs(24±24)%,P〈0.05],在T24两组感染相关器官功能衰竭评分系统(SOFA)评分比较差异有统计学意义[(11.1±3.2)分vs(12.4±4.0)分,P〈0.05]。两组28d病死率分别为38.2%、56.9%,差异有统计学意义(P〈0.05)。在入组后各时间点,CI和P(CV—a)CO2均存在负相关。结论感染性休克患者按EGDT进行复苏治疗时,仅以ScvO2作为目标来指导复苏治疗是不够的,当ScvO2已经达到70%时,可将P(CV—a)CO2≥6mmHg作为另一个判断患者存在复苏不充分的指标。 Objective To investigate the value of central venous - arterial carbon dioxide difference [ P( cv - a) CO2 ] as a index of body tissue perfusion in septic shock patients. Methods 126 consecutive septic shock patients underwent early goal -directed therapy (EGDT) were studied prospectively from June 2009 to June 2011. Patients were divided into low P( cv - a) CO2 group ( n = 68 ) and high P(cv -a)CO2 group(n =58) according to a threshold of 6 mm Hg at T0. MAP, HR, cardiac index (CI) , SaO2, ScvO2, 02 extraction ratio [ ERO2 = ( SaO2 - ScvO2 )/SaO2 ], P ( ev - a) CO2 and serum lactate were measured at 0, 6 and 12 h after inclusion (T0,T6, T12 ). Results At To, there was a significant difference in CI between low gap group patients and high gaP group patients [ (4.35±0. 90) L/( min·m2 ) vs ( 3. 14±0.65 ) L/( min·m2 ), P 〈 0. 0001 ], but no differences in ScvO2 values between two groups[ (76±4)% vs (75±4)% , P =0.18]. From To to T12, the clearance of lactate was significantly higher in the low gap group than in the high gap group [ (33±28)% vs (24±24) % ,P 〈 0.05 ]. There was statistical difference in 28 - day mortality (38.2% vs 56.9%, P 〈 0. 05 ) and SOFA score at T24 ( 11.1±3.2 vs 12.4±4.0,P 〈 0.05 ) between two groups. At T0, T6 and T12,CI and P( cv - a) CO2 values were negative correlation ( P 〈 0. 0001 ). Conclusion For septic shock patients after EGDT, only ScvO2 may not be sufficient to guide therapy. When the 70% SevO2 goal value is reached, the presence of P ( cv - a) CO2 larger than 6 mm Hg might be another index to identify patients who still remain inadequately resuscitated.
出处 《中国急救医学》 CAS CSCD 北大核心 2012年第11期971-975,共5页 Chinese Journal of Critical Care Medicine
关键词 中心静脉-动脉二氧化碳分压差[P(cv-a)CO2] 中心静脉氧饱和度 感染性休克 早期目标导向治疗(EGDT) Central venous - arterial carbon dioxide difference C P ( cv - a ) CO2 Central venous oxygen saturation Septic shock Early goal - directed therapy (EGDT)
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参考文献11

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同被引文献120

  • 1郭昌星,杨兴易,林兆奋,赵良,单红卫,陈德昌,严鸣.生脉注射液对全身炎症反应综合征患者血浆血管活性介质影响的临床观察[J].中国中西医结合急救杂志,2004,11(4):239-241. 被引量:57
  • 2范俊,张旭.麦冬对心脑血管系统药理作用研究进展[J].南京中医药大学学报,2006,22(4):270-272. 被引量:50
  • 3梁敏,吴多志,周德华.美蓝抗休克应用的研究进展[J].中国危重病急救医学,2006,18(9):568-570. 被引量:4
  • 4王东浩.乳酸清除率评估重度脓毒症患者预后的临床分析[J].中国急救医学,2007,27(1):15-17. 被引量:96
  • 5夏建国.烧伤麻醉理论与实践[M].北京:科学技术文献出版社,2011:115-171.
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