严重脓毒症液体复苏中全心舒张期末容积指数与中心静脉压的相关性研究

摘要

目的分析严重脓毒症患者脉搏指示连续心排血量（PiCCO）监测下液体复苏中的全心舒张期末容积指数（GEDI）与中心静脉压（CVP）的相关性。方法对64例严重脓毒症患者严格按照2008年脓毒症救治指南进行液体复苏，测定记录GEDI与其对应的CVP值，观察不同CVP范围的容量反应准确性，分析CVP与GEDI的相关性。结果对于严重脓毒症患者，CVP与GEDI无相关性（r＝-0.012，P＞0.05）；进一步分层比较发现，当CVP在0～8 mm Hg（1 mm Hg＝0.133 kPa）或＞12 mm Hg时与GEDI无相关性（r值分别为-0.009、-0.020，均P＞0.05）；在脓毒症指南所要求的6 h复苏目标CVP 8～12 mm Hg时，CVP与GEDI呈明显正相关（r＝0.653，P＜0.01）。结论 CVP不适合单独作为液体复苏容量的目标指标。%Objective To explore the correlation between global end diastolic volume index(GEDI)and central venous pressure(CVP)of severe sepsis patients during fluid resuscitation by pulse induced continuous cardiac output(PiCCO )test. Methods Sixty-four severe sepsis patients had been treated by fluid resuscitation strictly in accordance with the guidelines for treatment of sepsis in 2008. During the treatment,GEDI and corresponding CVP data were measured and recorded to observe the correctness of volume reaction under different CVP ranges,and the relativity between GEDI and CVP was analyzed. Results In the whole process of monitoring circulatory blood volume,no significant correlation between CVP and GEDI(r=-0.012,P>0.05)was found in severe patients with severe sepsis. When the CVP was in 0-8 mm Hg(1 mm Hg=0.133 kPa)or greater than 12 mm Hg,there was no correlation with the GEDI(r=-0.009,-0.020,respectively,both P>0.05). When the CVP was in 8-12 mm Hg at the 6 hours resuscitation target required by the guidelines,there was an obvious positive correlation between CVP and GEDI(r=0.653,P<0.01). Conclusion CVP is not suitable to be an exclusive target indicator for fluid resuscitation volume.