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Title: Early application of continuous high-volume haemofiltration can reduce sepsis and improve the prognosis of patients with severe burns.
Author: You B, Zhang YL, Luo GX, Dang YM, Jiang B, Huang GT, Liu XZ, Yang ZC, Chen Y, Chen J, Yuan ZQ, Yin SP, Peng YZ.
Journal: Crit Care; 2018 Jul 06; 22(1):173. PubMed ID: 29980222.
Abstract:
BACKGROUND: In the early stage of severe burn, patients often exhibit a high level of inflammatory mediators in blood and are likely to develop sepsis. High-volume haemofiltration (HVHF) can eliminate these inflammatory mediators. We hypothesised that early application of HVHF may be beneficial in reducing sepsis and improving the prognosis of patients with severe burns. METHODS: Adults patients with burns ≥ 50% total burn surface area (TBSA) and in whom the sum of deep partial and full-thickness burn areas was ≥ 30% were enrolled in this randomised prospective study, and they were divided into control (41 cases) and HVHF (41 cases) groups. Patients in the control group received standard management for major burns, whereas the HVHF group additionally received HVHF treatment (65 ml/kg/h for 3 consecutive days) within 3 days after burn. The incidence of sepsis and mortality, some laboratory data, levels of inflammatory cytokines in the blood, HLA-DR expression on CD14⁺ peripheral blood monocytes, the proportion of CD25⁺Foxp3⁺ in CD4⁺ T lymphocytes, and the counts of CD3⁺, CD4⁺ and CD8⁺ T lymphocytes were recorded within 28 days post-burn. RESULTS: The incidence of sepsis, septic shock and duration of vasopressor treatment were decreased significantly in the HVHF group. In addition, in the subgroup of patients with burns ≥ 80% TBSA, the 90-day mortality showed significant decreases in the HVHF group. The ratio of arterial oxygen partial pressure to the fraction of inspiration oxygen was improved after HVHF treatment. In the patients who received HVHF treatment, the blood levels of inflammatory cytokines, including tumour necrosis factor-α, interleukin (IL)-1β, IL-6 and IL-8, as well as the blood level of procalcitonin were found to be lower than in the control group. Moreover, higher HLA-DR expression on CD14⁺ monocytes and a lower proportion of CD25⁺Foxp3⁺ in CD4⁺ T lymphocytes were observed in the patients in the HVHF group. CONCLUSIONS: Early application of HVHF benefits patients with severe burns, especially for those with a greater burn area (≥ 80% TBSA), decreasing the incidence of sepsis and mortality. This effect may be attributed to its early clearance of inflammatory mediators and the recovery of the patient's immune status. TRIAL REGISTRATION: Chinese Clinical Trial Register, ChiCTR-TRC-12002616 . Registered on 24 October 2012.

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