Early Transcriptomic Response to Burn injury: Severe Burns are Associated with Immune Pathway Shutdown

Author(s):  
John W Keyloun ◽  
Ross Campbell ◽  
Bonnie C Carney ◽  
Ruoting Yang ◽  
Stacy-Ann Miller ◽  
...  

Abstract Burn injury induces a systemic hyperinflammatory response with detrimental side effects. Studies have described the biochemical changes induced by severe burns, but the transcriptome response is not well characterized. The goal of this work is to characterize the blood transcriptome after burn injury. Burn patients presenting to a regional center between 2012-2017 were prospectively enrolled. Blood was collected on admission and at predetermined time points (hours 2, 4, 8, 12, 24). RNA was isolated and transcript levels were measured with a gene expression microarray. To identify differentially regulated genes (FDR≤0.1) by burn injury severity, patients were grouped by total body surface area (TBSA) above or below 20% and statistically enriched pathways were identified. Sixty-eight patients were analyzed, most patients were male with a median age of 41 (IQR, 30.5-58.5) years, and TBSA of 20% (11-34%). Thirty-five patients had %TBSA injury ≥20%, and this group experienced greater mortality (26% vs. 3%, p=0.008). Comparative analysis of genes from patients with </≥20% TBSA revealed 1505, 613, 380, 63, 1357, and 954 differentially expressed genes at hours 0, 2, 4, 8, 12 and 24 respectively. Pathway analysis revealed an initial upregulation in several immune/inflammatory pathways within the ≥20% TBSA groups followed by shutdown. Severe burn injury is associated with an early proinflammatory immune response followed by shutdown of these pathways. Examination of the immunoinflammatory response to burn injury through differential gene regulation and associated immune pathways by injury severity may identify mechanistic targets for future intervention.

2021 ◽  
Vol 42 (Supplement_1) ◽  
pp. S107-S108
Author(s):  
Linda E Sousse ◽  
Amanda Staudt ◽  
Christopher VanFosson

Abstract Introduction One of the hallmarks of critical illness and trauma is that it triggers resorptive bone loss, as well as an increase in bone fractures and a reduction in bone density. Sustained markers of bone resorption, bone formation, and regulators of bone signaling pathways are linked to prolonged inflammatory activities and the prolonged deterioration of bone microstructure. The objective of this study is to evaluate the bone fracture rate of the U.S Military, non-U.S. Military, North Atlantic Treaty Organization (NATO) Military, local civilian, and Coalition Forces population in Operation Enduring Freedom and Operation Freedom’s Sentinel with burns from 2005 to 2018 using the Department of Defense Trauma Registry (DoDTR; n=28,707). Our hypothesis is that there is a direct relationship between burn injury severity and bone fracture rates. Methods Pearson’s correlation coefficient and scatterplots were used in this retrospective, observational study to demonstrate the correlation between total body surface area (TBSA) burn and number of fractures by anatomical location. Results Approximately 15,195 patients (age: 26 ± 10 years) in Role 2 and Role 3 treatment centers reported fractures. Of those patients, 351 suffered from burns with 632 anatomical fracture locations. Facial fractures were most prominent (16%), followed by foot (12%), skull (12%), tibia/fibula (11%), hand (11%), and ulna/radius (10%). There was no initial correlation between n increasing severity of TBSA burn and count of fracture locations (ρ=-0.03, p=0.8572). Conclusions There was no acute correlation between burn severity and bone fracture rates; however, further analyses are required to assess chronic post-burn fracture rates.


2020 ◽  
Vol 41 (4) ◽  
pp. 913-917 ◽  
Author(s):  
Akshay B Roy ◽  
Liam P Hughes ◽  
Lindsay A West ◽  
Eric S Schwenk ◽  
Yasmin Elkhashab ◽  
...  

Abstract Pain management guidelines for burn injury in pregnant women are scarce. Maternal and fetal morbidity and mortality in pregnant burn patients have been shown to be higher than that of the general population, especially in severe burns. Early intervention and interdisciplinary treatment are critical to optimize maternal and fetal outcomes. Proper pain management is central to wound treatment, as poor control of pain can contribute to delayed healing, re-epithelialization, as well as persistent neuropathic pain. We present this case of a 34-year-old female patient who suffered an 18% total body surface area burn during the third trimester of pregnancy to demonstrate that ketamine can be considered as an adjunct for procedural and background analgesia during the third trimester, as part of a multimodal strategy in a short-term, monitored setting after a thorough and complete analysis of risks and benefits and careful patient selection.


2017 ◽  
Vol 64 (1) ◽  
pp. 39-42
Author(s):  
Ivana Petrov ◽  
Ivana Budic ◽  
Irena Simic ◽  
Dusica Simic

Major burn injury remains a significant cause of morbidity and mortality in pediatric patients. The treatment of burned children differs substantially from that of adults not only because of the different body proportions but also because of the metabolic processes involved, hormonal responses, the immunological profile, the degree of psychological maturation and healing potential. After assessing the overall physiological status of the child, accurate assessment of the burn injury and appropriate fluid resuscitation are of great importance. The severity of burn injury is characterized by the depth of the burn, total body surface area (TBSA) that is involved, the location of burn injury and the presence or absence of inhalation injury. Early excision and grafting, adequate nutrition, alleviation of the hypermetabolic response, treatment of hyperglycaemia, and physical therapy improve survival and outcomes in children with severe burns.


2021 ◽  
Vol 10 (3) ◽  
pp. 476
Author(s):  
Ioana Tichil ◽  
Samara Rosenblum ◽  
Eldho Paul ◽  
Heather Cleland

Objective: To determine blood transfusion practices, risk factors, and outcomes associated with the use of blood products in the setting of the acute management of burn patients at the Victorian Adult Burn Service. Background: Patients with burn injuries have variable transfusion requirements, based on a multitude of factors. We reviewed all acute admissions to the Victorian Adult Burns Service (VABS) between 2011 and 2017: 1636 patients in total, of whom 948 had surgery and were the focus of our analysis. Method and results: Patient demographics, surgical management, transfusion details, and outcome parameters were collected and analyzed. A total of 175 patients out of the 948 who had surgery also had a blood transfusion, while 52% of transfusions occurred in the perioperative period. The median trigger haemoglobin in perioperative was 80mg/dL (IQR = 76–84.9 mg/dL), and in the non-perioperative setting was 77 mg/dL (IQR = 71.61–80.84 mg/dL). Age, gender, % total body surface area (TBSA) burn, number of surgeries, and intensive care unit and hospital length of stay were associated with transfusion. Conclusions: The use of blood transfusions is an essential component of the surgical management of major burns. As observed in our study, half of these transfusions are related to surgical procedures and may be influenced by the employment of blood conserving strategies. Furthermore, transfusion trigger levels in stable patients may be amenable to review and reduction. Risk adjusted analysis can support the implementation of blood transfusion as a useful quality indicator in burn care.


2021 ◽  
Vol 42 (Supplement_1) ◽  
pp. S113-S114
Author(s):  
Marc R Matthews ◽  
Sara Calder ◽  
Areta Kowal-Vern ◽  
Philomene Spadafore ◽  
Karen J Richey ◽  
...  

Abstract Introduction Caloric intake has been a vital component for burn wound healing and recovery. The hypothesis was that caloric requirements are based on injury severity & post-burn week as predicated by indirect calorimetry (IC)/predictive equations. Methods This was a retrospective chart review of 115 burn patients (2012–2017). Caloric requirements were determined by the Curreri equation [which includes % total body surface area (TBSA)] and IC for a 5-week period provided mainly by enteral nutrition. Patients received supplements and total parenteral nutrition as needed. Results The mean ±sd age was 43±18 years, 41±18 % TBSA, Body Mass Index of 28±7 kg/m2, and mortality of 26 (23%). The major mechanisms of injury were flame/flash/explosions. There were 59 (51%) of patients with < 40 % TBSA burns, [median Injury Severity Score (ISS) 9; Apache score 14], and 56 (49%) with ≥40 % TBSA (median ISS 25; Apache score 21), p < .0001. The Respiratory Quotient (RQ) had a median of 0.94 (range 0.79 to 1.02). The median number of surgeries for the < 40 % TBSA group was 5 versus 12 for the ≥40 % TBSA, p < .0001. The Injury Factor did not differ from weeks 1–5 (1.8 for < 40 % TBSA and 2.0 for the ≥ 40 % TBSA). The Curreri equation calculation for this study was a median 3640 (range 2161–5950) calories. The Curreri equation resulted in significantly increased caloric recommendations for the ≥ 40 %TBSA compared to the < 40 %TBSA patients, p < .0001. The < 40 %TBSA group had caloric requirements ranging between 1500- 2700 calories compared to the ≥ 40 %TBSA group, whose calories ranged between 2000–3700. The total daily caloric recommendations were also significantly increased in the ≥40 %TBSA compared to the < 40 %TBSA patients. The maximum levels of resting energy expenditure (REE) from IC, total daily calories recommended by the dietitian and average calories ranged between 3000–4500 in the < 40 %TBSA group and 3600–6700 in the ≥ 40 %TBSA group. The caloric recommendations increased for all patients from week 1 to week 3 and leveled off during weeks 4–5. Conclusions Patient caloric requirements were dependent not only on the severity of the burn injury but also the post-burn hospitalization during which surgeries, debridement/grafting, and infectious complications occurred. They increased until the third week post-burn and leveled off in the recovery period. The study caloric recommendations and requirements were consistent with the REE and Curreri equation assessments.


2017 ◽  
Vol 5 ◽  
Author(s):  
Kathleen S. Romanowski ◽  
Tina L. Palmieri

Abstract Burn injury is a leading cause of unintentional death and injury in children, with the majority being minor (less than 10%). However, a significant number of children sustain burns greater than 15% total body surface area (TBSA), leading to the initiation of the systemic inflammatory response syndrome. These patients require IV fluid resuscitation to prevent burn shock and death. Prompt resuscitation is critical in pediatric patients due to their small circulating blood volumes. Delays in resuscitation can result in increased complications and increased mortality. The basic principles of resuscitation are the same in adults and children, with several key differences. The unique physiologic needs of children must be adequately addressed during resuscitation to optimize outcomes. In this review, we will discuss the history of fluid resuscitation, current resuscitation practices, and future directions of resuscitation for the pediatric burn population.


2019 ◽  
Vol 184 (Supplement_1) ◽  
pp. 11-15 ◽  
Author(s):  
Tina L Palmieri ◽  
James H Holmes ◽  
Brett Arnoldo ◽  
Michael Peck ◽  
Amalia Cochran ◽  
...  

Abstract Objectives Studies suggest that a restrictive transfusion strategy is safe in burns, yet the efficacy of a restrictive transfusion policy in massive burn injury is uncertain. Our objective: compare outcomes between massive burn (≥60% total body surface area (TBSA) burn) and major (20–59% TBSA) burn using a restrictive or a liberal blood transfusion strategy. Methods Patients with burns ≥20% were block randomized by age and TBSA to a restrictive (transfuse hemoglobin <7 g/dL) or liberal (transfuse hemoglobin <10 g/dL) strategy throughout hospitalization. Data collected included demographics, infections, transfusions, and outcomes. Results Three hundred and forty-five patients received 7,054 units blood, 2,886 in massive and 4,168 in restrictive. Patients were similar in age, TBSA, and inhalation injury. The restrictive group received less blood (45.57 ± 47.63 vs. 77.16 ± 55.0, p < 0.03 massive; 11.0 ± 16.70 vs. 16.78 ± 17.39, p < 0.001) major). In massive burn, the restrictive group had fewer ventilator days (p < 0.05). Median ICU days and LOS were lower in the restrictive group; wound healing, mortality, and infection did not differ. No significant outcome differences occurred in the major (20–59%) group (p > 0.05). Conclusions: A restrictive transfusion strategy may be beneficial in massive burns in reducing ventilator days, ICU days and blood utilization, but does not decrease infection, mortality, hospital LOS or wound healing.


2017 ◽  
Vol 28 (1) ◽  
pp. 41
Author(s):  
Alia E. Al-Ubadi

Association between Procalcitonin (PCT) and C-reactive protein (CRP) and burn injury was evaluated in 80 burned patients from Al-Kindy and Imam Ali hospitals in Baghdad-Iraq. Patients were divided into two groups, survivor group 56 (70%) and non-survivor group 24 (30%). PCT was estimated using (Human Procalcitonin ELISA kit) provided by RayBio/USA while CRP was performed using a latex agglutination kit from Chromatest (Spain). Our results declared that the mean of Total Body Surface Area (TBSA %) affected were 63.5% range (36%–95%) in non-survivor patients, while 26.5% range (10%–70%) in survivor patients. There is a significant difference between the two groups (P = 0.00), the higher mean percentage of TBSA has a significant association with mortality. Serum PCT and CRP were measured at the three times of sampling (within the first 48hr following admission, after 5thdays and after 10th days). The mean of PCT serum concentrations in non-survivor group (2638 ± 3013pg/ml) were higher than that of survivor group (588 ± 364pg/ml). Significantly high levels of CRP were found between the survivor and non-survivor groups especially in the 10th day of admission P=0.000, present study show that significant differences is found within the non-survivor group through the three times P= 0.01, while results were near to significant differences within survivor group through the three times (P= 0.05).


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9984
Author(s):  
Shin-Yi Tsai ◽  
Chon-Fu Lio ◽  
Shou-Chuan Shih ◽  
Cheng-Jui Lin ◽  
Yu-Tien Chen ◽  
...  

Background Acute kidney injury (AKI) is one of the most severe complications of burn injury. AKI with severe burn injury causes high mortality. This study aims to investigate the incidence of and predisposing factors for AKI in burn patients. Methods This is a single-center, retrospective, descriptive criterion standard study conducted from June 27, 2015, to March 8, 2016. We used Kidney Disease Improving Global Outcomes criteria to define and select patients with AKI. The study was conducted by recruiting in hospital patients who suffered from the flammable cornstarch-based powder explosion and were treated under primary care procedures. A total of 49 patients who suffered from flammable dust explosion-related burn injury were enrolled and admitted on June 27, 2015. The patients with more than 20% total body surface area of burn were transferred to the intensive care unit. Patients received fluid resuscitation in the first 24 hours based on the Parkland formula. The primary measurements were the incidence of and predisposing factors for AKI in these patients. Demographic characteristics, laboratory data, and inpatient outcomes were also evaluated. The incidence of AKI in this cohort was 61.2% (n = 30). The mortality rate was 2.0% (n = 1) during a 59-day follow-up period. The multivariate analysis revealed inhalation injury (adjusted OR = 22.0; 95% CI [1.4–358.2]) and meeting ≥3 American Burn Association (ABA) sepsis criteria (adjusted OR = 13.7; 95% CI [1.7–110.5]) as independent risk factors for early advanced AKI. Conclusions The incidence rate of AKI was higher in this cohort than in previous studies, possibly due to the flammable dust explosion-related burn injury. However, the mortality was lower than that expected. In clinical practice, indicators of inflammation, including ABA sepsis criteria may help in predicting the risk of AKI in patients with burn injury.


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