Mitochondrial Function in Septic Patients

After resuscitation, hypoperfusion in the sepsis patients will be treated by fluid resuscitation and vasopressor. Some groups of patients may be not responsive to this treatment (MAP \<65 mmHg), administration of steroids to this group will be blindly randomized (treatment and control group). During resuscitation of septic shock patients with fluid resuscitation and vasopressors, some may not respond to treatment (MAP \< 65 mmHg). Patients who have shock refractory to fluid resuscitation and norepinephrine therapy for more than 0.5 mcg/kg/min will be blindly randomized to receive steroid (treatment group) or placebo (control group). Blood samples will be obtained to determine mitochondrial functioning before, at day 1 and day 7 after administration of study medications in both groups.