Relationship between prognosis and alteration of oxygen utilization coefficient in patients with sepsis / 中国中西医结合急救杂志

ABSTRACT

Objective: To investigate the relationship between prognosis and alteration of oxygen(utilization) coefficient(O_2UC) in patients with sepsis.Methods: Sixty critically ill patients were divided into(sepsis)(n=30) and nonsepsis(n=30) groups,and 30 healthy controls were selected as normal control group.Gas analysis of arterial blood and central venous blood and calculation of O_2UC(O_2UC=arterial oxygen(saturation-venous) oxygen saturation/arterial oxygen saturation) were carried out at 8 o′clock in sepsis and(non-sepsis) groups on admission and 1,2,3,5,7 and 10 days after admission,and gas analysis of arterial blood and central venous blood was carried out only once in the controls.Results: On admission and 1 day(after) admission,O_2UCs in sepsis and non-sepsis groups were significantly higher than that of control group(both P0.05)).When O_2UC in critically ill patients persisted higher than 55% for 12-24 hours,the prognosis of the patients was poor and had a tendency to die in a short time.From the 2 nd day after admission,O_2UCs in sepsis and non-sepsis groups were lower than that in control group,and O_2UC in sepsis group was obviously lower than that in non-sepsis group(all P0.05),but from the 2 nd day after admission,O_2UC in sepsis group remained at a lower level compared with that in control group(all P