Abstract:Objective To explore the intestinal barrier status and its influencing factors in hospitalized patients with sepsis. Methods From January 2012 to January 2017, 108 patients with sepsis treated in the ICU of our hospital were selected and divided into a sepsis group (n = 63) and a septic shock group (n = 45) according to whether the patients had shock or not. And 74 patients who did not have sepsis after general surgery were selected as the control group. The serum D-lactate, endotoxin, intestinal fatty acid binding protein (IFABP), Acute Physiology and Chronic Health Evaluation (APACHE) score and high-sensitivity C-reactive protein (hs-CRP) were detected after the patients were admitted to our hospital. Results The serum D-lactic acid and endotoxin in the sepsis group and the septic shock group were significantly higher than those in the control group, the serum D- lactic acid and endotoxin in the septic shock group were significantly higher than those in the sepsis group, the differences were statistically significant (P < 0.05). The levels of D-lactic acid and endotoxin in the patients with abdominal infection were significantly higher than those in the non-abdominal infection patients (P < 0.05). The serum levels of D-lactic acid and endotoxin were significantly higher in the dead patients than in the alive patients (P < 0.05). The serum D-lactic acid and endotoxin levels of the patients were positively correlated with APACHEII score, IFABP and mechanical ventilation time (P < 0.05), but were not correlated with hs-CRP (P > 0.05). Conclusions The intestinal barrier function of the patients with sepsis is closely related to the severity of the disease and intestinal ischemia, and the more severe the impairment of the barrier function is, the worse the prognosis is.