[The impact of different fluid management on mortality in patients with septic shock]

To find out the influential effect of different fluid management on mortality of patients with septic shock in different phases.

From March 2007 to December 2009, a retro spective controlled study was conducted on the clinical data of 107 adult patients with septic shock in the intensive care unit (ICU) of Subei Hospital of Jiangsu Province. The patients were divided into survival group ( n =68) and non survival group ( n =39) according to the final outcome. A number of demographic and variables were collected from the medical record. The acute physiology and chronic health evaluationII (APACHEII) score, sequential organ failure assessment (SOFA), liquid intake and output volume and its balance daily within 1 week, 24 hour early goal directed therapy (EGDT) and conservative late fluid management (CLFM) were compared between two groups. The Logistic regression statistics was used to determine the relationship between APACHEII, SOFA, EGDT, CLFM and survival.

The single variable analysis showed that there was significant difference in the parameters of oxygenation index in 7 days ,arterial blood lactate clearance within 24 hours, acute lung injury, length of mechanical ventilation, length of ICU stay and in hospital, the goal of fluid management including 24 hour EGDT, 24 hour CLFM, fluid balance in 24 hours, total fluid input within 7 days, negative fluid balance and times during 7 days between two groups. Logistic regression showed that failure to achieve 24 hour EGDT and late CLFM,a negative balance of <2 000 ml, total fluid input of >20 000 ml within 1 week were independent risk factors of death, and odds ratio ( OR ) was 4.159, 4.431, 23.788 and 4.353, respectively, the P value was 0.035, 0.019, 0.000, 0.025, respectively. The 28 day mortality in 24 hour EGDT and CLFM group (12.5%) was significantly lower than that of 24 hour EGDT with liberal late fluid management (LLFM) group (46.2%) and that in the group of patients in whom with failure to have 24 hour EGDT with CLFM or LLFM (30.0%, 76.2%, P<0.05 or P <0.01).

Both early achievement of 24 hour EGDT and late CLFM for the patients with septic shock can lower mortality.