The use of a hemoperfusion column that removes endotoxin and cytokines in the complex therapy of widespread peritonitis complicated by septic shock

А clinical case of septic shock treatment with new approved for clinical use hemoperfusion columns Efferon LPS of multi-purpose action, which are capable of removing LPS and cytokines from the blood, is presented. A 75-year-old patient 8 hours after surgery for widespread peritonitis, which developed due to obturation intestinal obstruction and rupture of the cecum, in a state of septic shock (SOFA 10, sympathomimetic support with norepinephrine 0.56 μg/kg per minute) underwent in addition to the treatment 2 sessions of hemoperfusion (120 minutes each) with an interval of two days. The next day after the first session of hemoperfusion, blood pressure returned to normal. Over the next 5 days, impaired organ functions gradually recovered (SOFA dynamics from 10 to 1 point) and the level of procalcitonin in the blood decreased from 98 to 5 ng/ml. A decrease in the concentration of IL-6 in the blood was noted: from 1686 to 1388 pg/ml after the first session, from 692 to 411 pg/ml after the second and up to 350 pg/ml on the following days. The content of CD14+ blood monocytes also decreased: from 0.13·109/l to 0.03·109/l after the first session and from 0.30·109/l to 0.18·109/l after the second. The patient was in intensive care for 8 days and was discharged from the hospital after 24 days. The use of hemoperfusion column for the adsorption of cytokines and LPS in an extremely severe patient with septic shock was safe. One of the effects of using the column was the removal of LPS-activated CD14+ monocytes and CD14+ granulocytes from the blood, which helped to reduce systemic inflammation and the severity of multiple organ disorders.

Effect of hemoperfusion cartridge on different internal environmental indicators

BACKGROUND

This study aimed to observe the effect of hemoperfusion (HP) cartridge on different internal environment indicators at different time points in patients with acute blood poisoning and to find alternative indicators for the detection of blood poisoning.

METHODS

The levels of internal environment indicators (blood pH, PvCO2, PvO2, blood lactate, potassium, free calcium, bicarbonate, and blood glucose) before and after HP treatment were recorded for patients with acute poisoning at time points of 30 minutes and 120 minutes. After calculating the difference value δ, the statistical software was used to analyze the statistical difference of the influence caused by HP cartridge at two time points. According to the formula, adsorption rate % = ×100, the adsorption rate of each indicator was calculated respectively.

RESULTS

The difference of indicators at different time points in inlet and outlet such as blood glucose, free-calcium, and lactate was statistically significant (P<0.05), but the difference in indicators such as pH, PvCO2, PvO2, potassium, sodium, and bicarbonate was not statistically significant (P>0.05).

CONCLUSION

During HP treatment, the indicators of blood glucose, free-calcium and lactate were significantly affected by HP cartridge, and the effect varies with time.

Effect of direct hemoperfusion using polymyxin B immobilized fiber on inflammatory mediators in patients with severe sepsis and septic shock

The objective of this study was to investigate retrospectively the effect of direct hemoperfusion using polymyxin B immobilized fiber (PMX-DHP) in a cartridge to remove endotoxin on inflammatory mediators in septic patients. PMX-DHP was performed 59 times in 40 patients with severe sepsis and septic shock due to gram-negative bacterial infection. Mean age and APACHE II score were 63 years and 22, respectively. The first treatments with PMX-DHP were started when patient hemodynamics were unstable even after conventional therapies. The second treatments were performed in 19 patients whose hemodynamics were still unstable after the first PMX-DHP. The changes in inflammatory mediator levels were compared from baseline to post treatment with PMX-DHP. Statistical differences were calculated using the Wilcoxon rank sum test. Plasma endotoxin could be detected in 34 patients, which was significantly decreased in 20 cases measured by a chromogenic kinetic limulus amebocyte lysate assay (p=0.0254) and in 14 cases measured by a new limulus turbidimetric time assay (p=0.0196). Monocyte counts in peripheral blood decreased significantly (p=0.0402). Interleukin-6 decreased significantly (p=0.0020). Blood pyruvate also decreased significantly (p=0.0025). At the same time, mean arterial pressure, pulse pressure, systemic vascular resistance index, and urine output were significantly increased. These results indicated that PMX-DHP could decrease inflammatory mediators and be effective to interrupt the pathogenic sequence leading to septic shock due to gram-negative bacterial infection.