Burns : journal of the International Society for Burn Injuries
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Observational Study
Quantification of the negative impact of sedation and inotropic support on achieving early mobility in burn patients in ICU: A single center observational study.
Early rehabilitation for burns survivors in the intensive care unit (ICU) is arguably more challenging than the general population. Early achievement of functional verticality milestones (FVMs) has the potential to ameliorate the detrimental effects of bed rest and immobility observed in ICU patients and reduce healthcare costs. However, the time to achieving FVMs after burn injury is influenced by factors such as sedation practices, cardiovascular stability, mechanical ventilation, acute skin reconstruction and length of stay (LOS) during the acute intensive care period. ⋯ Maintaining sedation and agitation scores within the optimal range, and minimising sedative infusion and inotropic support enhances the likelihood of early and frequent mobilization in patients with burns admitted to ICU. Additional barriers identified were mechanical ventilation, burns surgery, pre-ICU practices and ICU length of stay. The challenge for clinicians moving forward is to determine how these factors may be modified to increase early mobilization of burn patients in ICU.
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This study evaluates the utility of arterial blood gas (ABG) parameters and chest radiography in predicting intubation need in patients with burn injuries with suspected inhalation injury. ⋯ In patients suspected inhalation injury, pH and P/F ratio were good predictors for appropriate intubations. Incorporating the parameters into the ABA criteria improved their clinical utility.
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Burn wound infection often involves a diverse combination of bacterial and fungal pathogens. In this study, we characterize the mixed species burn wound infection by inoculating the burn surface with 1 × 103/4/5 CFU of Pseudomonas aeruginosa, Staphylococcus aureus, and Candida albicans in a 1:1:1 ratio. Using the revised Walker-Mason scald burn rat model, 168 male Sprague-Dawley rats (350-450 g) subject to ∼10% TBSA burn injury, with or without inoculation, were evaluated for 11 days after burn. ⋯ Interestingly, within 3 days C. albicans achieved tissue loads of ∼1 × 106 CFU/g, but its numbers were significantly reduced beyond the limit of detection in the burn wound by day 7 in partial-thickness injuries and by day 11 in full-thickness injuries. The pathogenic biofilms contributed to burn depth progression, increased release of HMGB-1 into circulation from injured tissue, and significantly elevated the numbers of circulating innate immune cells (Neutrophils, Monocytes, and Basophils). This robust model of multi-species burn wound infection will serve as the basis for the development of new antimicrobials for combating biofilm-based wound infections.
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Extensive burn injury results in a complex immune response that is associated with mortality and prognosis. Studies on acquired immune and the development of sepsis in burn patients have been reported. However, one of the main cells in innate immune, neutrophil dysfunction in the burn shock stage has not been thoroughly characterized. ⋯ Neutrophil dysfunction plays a key role in the development of burn injury. Targeting the restoration of neutrophil function may be a feasible therapeutic intervention to help reduce fluid loss during shock and the severity of subsequent infection.
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Burn is an overwhelming injury. The De Ritis ratio, defined as aspartate aminotransferase to alanine aminotransferase ratio, can be used to predict poor outcomes. We evaluated the risk factors, including the De Ritis ratio, associated with 1-year mortality after burn surgery. ⋯ The preoperative De Ritis ratio was a risk factor for 1-year mortality after burn surgery. The De Ritis ratio >1.9 was significantly associated with an increased 1-year mortality after burn surgery. These findings emphasized the importance of identifying burn patients with an increased De Ritis ratio to reduce the mortality after burn surgery.