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The efficacy and safety of oxandrolone treatment for patients with severe burns: A systematic review and meta-analysis. Burns 2016; 42:717-27. [DOI: 10.1016/j.burns.2015.08.023] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 07/18/2015] [Accepted: 08/16/2015] [Indexed: 11/23/2022]
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53
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Ravat F, Le Floch R. [Not Available]. ANNALS OF BURNS AND FIRE DISASTERS 2015; 28:296-309. [PMID: 27777551 PMCID: PMC5068899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chaque année, le congrès de la SFB est l'occasion d'une mise au point sur un thème (« table ronde ».) Celui choisi en 2015 était la nutrition. Huit orateurs se sont succédés, faisant le point sur les données actuelles de la science, les pratiques dans les centres, et les recommandations actuelles, datant de 2013. Cet article se propose de diffuser les interventions.
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Affiliation(s)
- F. Ravat
- Centre hospitalier St Joseph & St Luc, Lyon, France
| | - R. Le Floch
- Réanimation chirurgicale et des brûlés, ChU nantes, France
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Patsouris D, Qi P, Abdullahi A, Stanojcic M, Chen P, Parousis A, Amini-Nik S, Jeschke MG. Burn Induces Browning of the Subcutaneous White Adipose Tissue in Mice and Humans. Cell Rep 2015; 13:1538-44. [PMID: 26586436 PMCID: PMC4662886 DOI: 10.1016/j.celrep.2015.10.028] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/09/2015] [Accepted: 10/08/2015] [Indexed: 01/22/2023] Open
Abstract
Burn is accompanied by long-lasting immunometabolic alterations referred to as hypermetabolism that are characterized by a considerable increase in resting energy expenditure and substantial whole-body catabolism. In burned patients, the length and magnitude of the hypermetabolic state is the highest of all patients and associated with profoundly increased morbidity and mortality. Unfortunately, the mechanisms involved in hypermetabolism are essentially unknown. We hypothesized that the adipose tissue plays a central role for the induction and persistence of hypermetabolism post-burn injury. Here, we show that burn induces a switch in the phenotype of the subcutaneous fat from white to beige, with associated characteristics such as increased mitochondrial mass and UCP1 expression. Our results further demonstrate the significant role of catecholamines and interleukin-6 in this process. We conclude that subcutaneous fat remodeling and browning represent an underlying mechanism that explains the elevated energy expenditure in burn-induced hypermetabolism.
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Affiliation(s)
- David Patsouris
- Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Peter Qi
- Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Abdikarim Abdullahi
- Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Mile Stanojcic
- Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Peter Chen
- Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Alexandra Parousis
- Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Saeid Amini-Nik
- Sunnybrook Research Institute, Toronto, ON M4N 3M5, Canada; Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Marc G Jeschke
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Sunnybrook Research Institute, Toronto, ON M4N 3M5, Canada; Sunnybrook Research Institute, Toronto, ON M4N 3M5, Canada; Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, ON M5S 1A1, Canada.
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Jewo P, Fadeyibi I. Progress in burns research: a review of advances in burn pathophysiology. ANNALS OF BURNS AND FIRE DISASTERS 2015; 28:105-15. [PMID: 27252608 PMCID: PMC4837486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 05/15/2014] [Accepted: 11/04/2014] [Indexed: 06/05/2023]
Abstract
Severe burns trigger a wide range of responses in the victim. Initial vascular changes are followed by hypermetabolic, inflammatory and immunologic changes. The prolonged hypermetabolic response is associated with an elevated resting rate of energy consumption, tissue wasting and altered substrate kinetics. There is increased blood glucose though insulin levels are above normal. The cortisol level is raised and, together with catecholamine, drives the metabolic response. The immune system is typically weakened. There is elevation in blood levels of a wide range of cytokines from activated cells. These agents drive a prolonged inflammatory response which can lead to tissue damage and multiple organ failure. Dynamic fluid resuscitation regimens have cut down mortality from shock in the early post-burn period. However, unbalanced activity of pro- and anti-inflammatory cytokines can leave patients in an immuno-suppressed state that affects outcomes. So far, many treatments, such as propranolol, a cardio-protector, and anabolic agents, such as oxandrolone and growth hormone, have been tried with mixed results. This review focuses on research that elucidated burn pathophysiology. Some clinical areas in which treatment centred on correcting altered physiology were also included. We have highlighted both the challenges and significant findings. Finally, this paper draws attention to the gaps between progress in basic research and clinical application and suggests areas where further research and funding could be focused.
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Affiliation(s)
- P.I. Jewo
- Department of Anatomy, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria
| | - I.O. Fadeyibi
- Burns and Plastic Surgery Unit, Department of Surgery, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria
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Lundy JB, Chung KK, Pamplin JC, Ainsworth CR, Jeng JC, Friedman BC. Update on Severe Burn Management for the Intensivist. J Intensive Care Med 2015; 31:499-510. [PMID: 26112758 DOI: 10.1177/0885066615592346] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Accepted: 06/01/2015] [Indexed: 11/15/2022]
Abstract
Thermal injury of humans causes arguably the most severe perturbations in physiology that can be experienced. These physiologic derangements start immediately and can persist in some form until months or even years after the burn wounds are healed. Burn shock, marked activation of the systemic inflammatory response, multiple-organ failure, infection, and wound failure are just a few of the insults that may require management by the intensivist. The purpose of this article is to review recent advances in the critical care management of thermally injured patients.
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Affiliation(s)
- Jonathan B Lundy
- Burn Center, United States Army Institute of Surgical Research, Fort Sam Houston, TX, USA Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Kevin K Chung
- Burn Center, United States Army Institute of Surgical Research, Fort Sam Houston, TX, USA Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Jeremy C Pamplin
- Burn Center, United States Army Institute of Surgical Research, Fort Sam Houston, TX, USA Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Craig R Ainsworth
- Department of Medicine, William Beaumont Army Medical Center, Fort Bliss, TX, USA
| | - James C Jeng
- Department of Surgery, Mount Sinai Beth Israel Medical Center, New York, NY, USA
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Acellular Hydrogels for Regenerative Burn Wound Healing: Translation from a Porcine Model. J Invest Dermatol 2015; 135:2519-2529. [PMID: 26358387 PMCID: PMC4570841 DOI: 10.1038/jid.2015.182] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 04/09/2015] [Accepted: 04/23/2015] [Indexed: 12/14/2022]
Abstract
Currently available skin grafts and skin substitute for healing following third-degree burn injuries is fraught with complications, often resulting in long-term physical and psychological sequelae. Synthetic treatment that can promote wound healing in a regenerative fashion would provide an off-the-shelf, non-immunogenic strategy to improve clinical care of severe burn wounds. Here, we demonstrate vulnerary efficacy and accelerated healing mechanism of dextran-based hydrogel in third-degree porcine burn model. The model was optimized to allow examination of the hydrogel treatment for clinical translation and its regenerative response mechanisms. Hydrogel treatment accelerated third-degree burn wound healing by rapid wound closure, improved reepithelialization, enhanced extracellular matrix remodeling, and greater nerve reinnervation, compared to the dressing treated group. These effects appear to be mediated through the ability of the hydrogel to facilitate a rapid but brief initial inflammatory response that coherently stimulates neovascularization within the granulation tissue during the first week of treatment, followed by an efficient vascular regression to promote a regenerative healing process. Our results suggest that the dextran-based hydrogels may substantially improve healing quality and reduce skin grafting incidents and thus pave the way for clinical studies to improve the care of severe burn injury patients.
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Abstract
During the year 2011, a survey was performed to describe current practices throughout Europe regarding three critical issues of acute burn care, namely fluid resuscitation, nutrition, and burn wound excision strategy. Thirty-eight questionnaires returned by burn centres from 17 different European countries were analyzed. The survey shows that Parkland remains the most commonly used formula to determine fluid needs in adults. All respondent centers use urine output to guide fluid resuscitation. While early excision of deep burns is the rule among centers, burn depth assessment by laser Doppler imaging is used in only a few centers. Indirect calorimetry and Toronto formula to estimate energy requirements do not have unanimous backing from respondents. Current literature encourages clinicians to move forward targeted and individualized therapies using a bundle of basic and advanced hemodynamic parameters, indirect calorimetry, and laser Doppler imaging. The results of this study suggest that such an approach is not common yet, and reinforce the subsequent need for large clinical trials that would evaluate the impact of such guided therapies to provide recommendations with a significant level of evidence.
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Xie Y, Li Z. Determination of 18 Types of Amino Acids in the Serum of Ischemic Stroke Patients by High Performance Liquid Chromatography-diode Array Detector Derivatized with 6-Aminoquinolyl-N-hydroxysuccinimidyl Carbamate. Cell Biochem Biophys 2015; 73:111-5. [PMID: 25697751 DOI: 10.1007/s12013-015-0648-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this study, we develop a fast and convenient method for the detection of 18 types of free amino acids in the serum of ischemic stroke patients. We use high performance liquid chromatography-diode array detector and thermo C18 column to separate 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate-derivatized amino acids. We find that Gln, His, Gly, Arg, and Cys levels are significantly lower in the serum of ischemic stroke patients comparing with normal persons. Our data indicate that this simple method can be used to detect free amino acids in serum with accurate and reliable results. This study provides a basis for the clinical treatment of ischemic stroke patients and suggests that amino acids can be supplemented to the patients during clinical treatment, which may improve patient prognosis.
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Affiliation(s)
- Ying Xie
- Department of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, 050031, China
| | - Zengning Li
- Department of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, 050031, China.
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60
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Xi P, Kaifa W, Yong Z, Hong Y, Chao W, Lijuan S, Hongyu W, Dan W, Hua J, Shiliang W. Establishment and assessment of new formulas for energy consumption estimation in adult burn patients. PLoS One 2014; 9:e110409. [PMID: 25330180 PMCID: PMC4199722 DOI: 10.1371/journal.pone.0110409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Accepted: 09/05/2014] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE An accurate knowledge of energy consumption in burn patients is a prerequisite for rational nutrition therapy. This study sought to create a formula that accounts for the metabolic characteristics of adult burn patients to accurately estimate energy consumption of patients with different areas and extents of burn and at different times after injury. METHODS Resting energy expenditure (REE) data on 66 burn patients, with total body surface area (TBSA) of burns ranging from 4% to 96%, were evaluated at different times after injury. REE values were determined in patients using indirect calorimetry at days 1, 2, 3, 7, 14, 21, and 28 after injury. We then constructed a mathematical model of REE changes post-burn. Next, established two new formulas (one non-linear and the other linear) for energy consumption estimation using model-based analytical solution and regression analysis. The new formulas were compared with measured REE and commonly used formulas including those of Carlson, Xie, Curreri, and Milner to determine accuracy and reliability. RESULTS Comparative analysis showed that the new formulas offered significantly higher accuracy and reliability than the Milner formula, which is considered the most accurate of commonly used burn energy consumption estimate formulas. The accuracy of the new nonlinear formula (94.29%) and that of the linear formula (91.43%) were significantly higher than that of Milner formula (72.86%) when compared to measured REE (χ2 = 11.706, P = 0.001; χ2 = 8.230, P = 0.004, respectively). The reliabilities of the new estimation formulas were both 100% and that of Milner formula was 74.24% (χ2 = 19.513, P = 0.000). CONCLUSION The new formulas constructed in this study provide reliable simulation of the impact of the degree of burn and post-burn days on energy consumption and offer notably higher accuracy and reliability than other formulas. These formulas will help determine nutritional needs of burn patients. TRIAL REGISTRATION The study was registered on Chinese Clinical Trial Registry as ChiCTR-TRC-13003806.
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Affiliation(s)
- Peng Xi
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burns of PLA, Southwest Hospital, Third Military Medical University, Chongqing, P.R. China
| | - Wang Kaifa
- Department of Mathematics, School of Biomedical Engineering, Third Military Medical University, Chongqing, P.R. China
| | - Zhang Yong
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burns of PLA, Southwest Hospital, Third Military Medical University, Chongqing, P.R. China
| | - Yan Hong
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burns of PLA, Southwest Hospital, Third Military Medical University, Chongqing, P.R. China
| | - Wang Chao
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burns of PLA, Southwest Hospital, Third Military Medical University, Chongqing, P.R. China
| | - Song Lijuan
- Department of Mathematics, School of Biomedical Engineering, Third Military Medical University, Chongqing, P.R. China
| | - Wang Hongyu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burns of PLA, Southwest Hospital, Third Military Medical University, Chongqing, P.R. China
| | - Wu Dan
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burns of PLA, Southwest Hospital, Third Military Medical University, Chongqing, P.R. China
| | - Jiang Hua
- Department of Computational Mathematics and Biostatistics, Metabolomics and Multidisciplinary Laboratory for Trauma Research, Sichuan Provincial People's Hospital, Sichuan Academy of Medical Sciences, Chengdu, China
| | - Wang Shiliang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burns of PLA, Southwest Hospital, Third Military Medical University, Chongqing, P.R. China
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61
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Abstract
Outcomes of patients with burns have improved substantially over the past two decades. Findings from a 2012 study in The Lancet showed that a burn size of more than 60% total body surface area burned (an increase from 40% a decade ago) is associated with risks and mortality. Similar data have been obtained in adults and elderly people who have been severely burned. We discuss recent and future developments in burn care to improve outcomes of children.
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Affiliation(s)
- Marc G Jeschke
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Toronto, Canada; Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, Canada; Sunnybrook Research Institute, Toronto, Canada.
| | - David N Herndon
- Shriners Hospitals for Children and Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA
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Real DSS, Reis RP, Piccolo MS, Okamoto RH, Gragnani A, Ferreira LM. Oxandrolone use in adult burn patients. Systematic review and meta-analysis. Acta Cir Bras 2014; 29 Suppl 3:68-76. [DOI: 10.1590/s0102-86502014001700013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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D'Asta F, Cianferotti L, Bhandari S, Sprini D, Rini GB, Brandi ML. The endocrine response to severe burn trauma. Expert Rev Endocrinol Metab 2014; 9:45-59. [PMID: 30743738 DOI: 10.1586/17446651.2014.868773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The endocrine system is frequently altered after a major burn trauma. Besides the endocrine response to stress characterized by hypercortisolism, several hypothalamus-hypophysis-target gland axes are rapidly perturbed within a few days. These alterations can persist in the long term and deserve an appropriate treatment. Disturbances in water clearance and glucidic metabolism are also common and need to be diagnosed and corrected to decrease morbidity in such patients. Bone and mineral metabolism is deeply compromised and requires correction of mineral abnormalities in order to improve symptoms and prevent bone loss. No large prospective and/or intervention trials are available to date to elaborate age-related, evidence-based recommendations to monitor and treat burn-related endocrine alterations.
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Affiliation(s)
- Federica D'Asta
- a Department of Neuroscience, Psychology, Drug, Research and Child Health, University of Florence, Viale Pieraccini 24, 50139 Florence, Italy
| | - Luisella Cianferotti
- b Department of Surgery and Translational Medicine, Unit of Bone and Mineral Metabolism, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | - Sahil Bhandari
- c Manchester Medical School, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Delia Sprini
- d Department of Internal Medicine, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy
| | - Giovam Battista Rini
- d Department of Internal Medicine, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy
| | - Maria Luisa Brandi
- b Department of Surgery and Translational Medicine, Unit of Bone and Mineral Metabolism, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
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64
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Affiliation(s)
- Yong Suk Cho
- Department of Surgery, Burn Center, Hangang Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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65
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Vaughn L, Beckel N. Severe burn injury, burn shock, and smoke inhalation injury in small animals. Part 1: burn classification and pathophysiology. J Vet Emerg Crit Care (San Antonio) 2013; 22:179-86. [PMID: 23016809 DOI: 10.1111/j.1476-4431.2012.00727.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To review the literature related to severe burn injury (SBI), burn shock, and smoke inhalation injury in domestic animals. Current animal- and human-based research and literature were evaluated to provide an overview of thermal burn classification and the pathophysiology of burn shock and smoke inhalation injury. ETIOLOGY Severe burn injury, burn shock, and smoke inhalation injury may be encountered as a result of thermal injury, radiation injury, chemical injury, or electrical injury. DIAGNOSIS Burns can be subdivided based on the amount of total body surface area (TBSA) involved and the depth of the burn. Local burn injuries involve <20% of the TBSA whereas SBI involves >20-30% of the TBSA. The modern burn classification system classifies burns by increasing depth: superficial, superficial partial-thickness, deep partial-thickness, and full-thickness. SUMMARY Local burn injury rarely leads to systemic illness whereas SBI leads to significant metabolic derangements that require immediate and intensive management. SBI results in a unique derangement of cardiovascular dysfunction known as "burn shock." The physiologic changes that occur with SBI can be divided into 2 distinct phases; the resuscitation phase and the hyperdynamic hypermetabolic phase. The resuscitation phase occurs immediately following SBI and lasts for approximately 24-72 hours. This period of hemodynamic instability is characterized by the release of inflammatory mediators, increased vascular permeability, reduced cardiac output, and edema formation. The hyperdynamic hypermetabolic phase begins approximately 3-5 days after injury. This phase is characterized by hyperdynamic circulation and an increased metabolic rate that can persist up to 24 months post burn injury in people.
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Affiliation(s)
- Lindsay Vaughn
- New England Animal Medical Center, West Bridgewater, MA 02379, USA.
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66
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Vaughn L, Beckel N, Walters P. Severe burn injury, burn shock, and smoke inhalation injury in small animals. Part 2: diagnosis, therapy, complications, and prognosis. J Vet Emerg Crit Care (San Antonio) 2013; 22:187-200. [PMID: 23016810 DOI: 10.1111/j.1476-4431.2012.00728.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To review the evaluation and treatment of patients suffering from severe burn injury (SBI), burn shock, and smoke inhalation injury. Potential complications and prognosis associated with SBI are also discussed. DIAGNOSIS Diagnosis of burn injury and burn shock is based on patient history and clinical presentation. Superficial burn wounds may not be readily apparent for the first 48 h whereas more severe wounds will be evident at presentation. Patients are diagnosed with local or SBI by estimating total body surface area involved using the 'Rule of Nines' or the Lund-Browder chart adapted from the human literature. THERAPY Patients suffering from SBI require immediate and aggressive fluid therapy. Burn wounds require prompt cooling to prevent progressive tissue damage. Due to significant pain associated with burn wounds and therapeutic procedures, multimodal analgesia is recommended. Daily wound management including hydrotherapy, topical medications, and early wound excision and grafting is necessary with SBI. COMPLICATIONS There are numerous complications associated with SBI. The most common complications include infections, hypothermia, intra-abdominal hypertension, and abdominal compartment syndrome. PROGNOSIS The prognosis of SBI in domestic animals is unknown. Based on information derived from human literature, patients with SBI and concomitant smoke inhalation likely have a worse prognosis than those with SBI or smoke inhalation alone.
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Affiliation(s)
- Lindsay Vaughn
- New England Animal Medical Center, West Bridgewater, MA 02379, USA.
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Hall KL, Shahrokhi S, Jeschke MG. Enteral nutrition support in burn care: a review of current recommendations as instituted in the Ross Tilley Burn Centre. Nutrients 2012. [PMID: 23201833 PMCID: PMC3509506 DOI: 10.3390/nu4111554] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Failure to adequately address the increased levels of inflammatory mediators, catecholamines and corticosteroids central to the hypermetabolic response post burn injury can lead to catastrophic results. One of the most important perturbations is provision of adequate and early nutrition. The provision of the right balance of macro and micronutrients, along with additional antioxidants is essential to mitigating the hypermetabolic and hypercatabolic state that results following a burn injury. As it is now widely accepted that enteral feeding is best practice for the burn population research has been more closely examining the individual components of enteral nutrition support. Recently fat to carbohydrate ratios, glutamine and antioxidants have made up the balance of this focus. This paper provides a review of the most recent literature examining each of these components and discusses the practices adopted in the Ross Tilley Burn Centre at Sunnybrook Health Sciences Centre.
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Affiliation(s)
- Kathryn L Hall
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Toronto, Ontario, M4N 3M5, Canada.
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68
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Pedroso FE, Spalding PB, Cheung MC, Yang R, Gutierrez JC, Bonetto A, Zhan R, Chan HL, Namias N, Koniaris LG, Zimmers TA. Inflammation, organomegaly, and muscle wasting despite hyperphagia in a mouse model of burn cachexia. J Cachexia Sarcopenia Muscle 2012; 3:199-211. [PMID: 22476919 PMCID: PMC3424191 DOI: 10.1007/s13539-012-0062-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Accepted: 02/15/2012] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Burn injury results in a chronic inflammatory, hypermetabolic, and hypercatabolic state persisting long after initial injury and wound healing. Burn survivors experience a profound and prolonged loss of lean body mass, fat mass, and bone mineral density, associated with significant morbidity and reduced quality of life. Understanding the mechanisms responsible is essential for developing therapies. A complete characterization of the pathophysiology of burn cachexia in a reproducible mouse model was lacking. METHODS Young adult (12-16 weeks of age) male C57BL/6J mice were given full thickness burns using heated brass plates or sham injury. Food and water intake, organ and muscle weights, and muscle fiber diameters were measured. Body composition was determined by Piximus. Plasma analyte levels were determined by bead array assay. RESULTS Survival and weight loss were dependent upon burn size. The body weight nadir in burned mice was 14 days, at which time we observed reductions in total body mass, lean carcass mass, individual muscle weights, and muscle fiber cross-sectional area. Muscle loss was associated with increased expression of the muscle ubiquitin ligase, MuRF1. Burned mice also exhibited reduced fat mass and bone mineral density, concomitant with increased liver, spleen, and heart mass. Recovery of initial body weight occurred at 35 days; however, burned mice exhibited hyperphagia and polydipsia out to 80 days. Burned mice had significant increases in serum cytokine, chemokine, and acute phase proteins, consistent with findings in human burn subjects. CONCLUSIONS This study describes a mouse model that largely mimics human pathophysiology following severe burn injury. These baseline data provide a framework for mouse-based pharmacological and genetic investigation of burn-injury-associated cachexia.
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Affiliation(s)
- Felipe E Pedroso
- Department of Cancer Biology, Kimmel Cancer Center, Thomas Jefferson University, 233 South 10th. Street BLSB 306, Philadelphia, PA, 19107, USA
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Kraft R, Herndon DN, Kulp GA, Mecott GA, Trentzsch H, Jeschke MG. Retinol binding protein: marker for insulin resistance and inflammation postburn? JPEN J Parenter Enteral Nutr 2012; 35:695-703. [PMID: 22042048 DOI: 10.1177/0148607111413901] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Burn injury leads to vast changes in both metabolic and inflammatory responses and is associated with increased morbidity and mortality. Insulin resistance (IR) and hyperglycemia are major components of the hypermetabolic response found in burn-injured patients and subsequently contribute to adverse outcomes. Studies have shown that increased systemic retinol binding protein (RBP) levels are associated with IR and hyperinflammation in diabetic and obese patients. The aim of this study was to determine RBP profiles and to test the hypothesis that elevated RBP levels are associated with both IR and the inflammatory response in burned patients. METHODS RBP was measured in 372 patients during the acute stay postburn. Patients' demographics, glucose levels, and insulin administration were recorded. Cytokines, hormones, plasma proteins, and organ markers were measured. The average of all measurements of RBP (2.1 mg/dL) was used to divide patients into high and low groups. Statistical analysis was performed by Student t test. Statistical significance was accepted at P < .05. RESULTS Fifty-one patients (high group) had elevated RBP levels during acute hospitalization and demonstrated a significant higher incidence of multiorgan failure, sepsis, and mortality (P < .05). Moreover, in the high group, a significant increase of IR, inflammatory cytokines, and catabolic and organ-specific markers were detected (P < .05). CONCLUSIONS Increased RBP levels postburn correlate with increased IR, inflammatory and catabolic responses, incidence of multiorgan failure, and mortality. RBP may be a novel biomarker to monitor these detrimental responses postburn.
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Affiliation(s)
- Robert Kraft
- Shriners Hospitals for Children, and Department of Surgery, University of Texas Medical Branch Galveston, Texas, USA
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Holt B, Graves C, Faraklas I, Cochran A. Compliance with nutrition support guidelines in acutely burned patients. Burns 2012; 38:645-9. [PMID: 22226872 DOI: 10.1016/j.burns.2011.12.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 11/28/2011] [Accepted: 12/09/2011] [Indexed: 11/25/2022]
Abstract
BACKGROUND Adequate and timely provision of nutritional support is a crucial component of care of the critically ill burn patient. The goal of this study was to assess a single center's consistency with Society of Critical Care Medicine/American Society for Parenteral and Enteral Nutrition (SCCM/ASPEN) guidelines for nutritional support in critically ill patients. METHODS Acutely burned patients >45kg in weight admitted to a regional burn center during a two-year period and who required 5 or more days of full enteral nutritional support were eligible for inclusion in this retrospective review. Specific outcomes evaluated include time from admission to feeding tube placement and enteral feeding initiation and percent of nutritional goal received within the first week of hospital stay. Descriptive statistics were used for all analyses. IRB approval was obtained. RESULTS Thirty-seven patients were included in this retrospective review. Median age of patients was 44.9 years (IQR: 24.2-55.1), and median burn injury size was 30% (IQR: 19-47). Median time to feeding tube placement was 31.1h post admission (IQR: 23.6-50.2h), while median time to initiation of EN was 47.9h post admission (IQR: 32.4-59.9h). The median time required for patients to reach 60% of caloric goal was 3 days post-admission (IQR: 3-4.5). CONCLUSION The median time for initiation of enteral nutrition was within the SCCM/ASPEN guidelines for initial nutrition in the critically ill patient. This project identified a 16h time lag between placement of enteral access and initiation of enteral nutrition. Development of a protocol for feeding tube placement and enteral nutrition management may optimize early nutritional support in the acutely injured burn patient.
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Affiliation(s)
- Brennen Holt
- Burn Center at the University of Utah, United States
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71
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Kraft R, Herndon DN, Williams FN, Al-Mousawi AM, Finnerty CC, Jeschke MG. The effect of obesity on adverse outcomes and metabolism in pediatric burn patients. Int J Obes (Lond) 2011; 36:485-90. [PMID: 22143622 PMCID: PMC3299841 DOI: 10.1038/ijo.2011.224] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Hypothesis Obesity influences metabolism and increases the incidence of clinical complications and worsens outcomes in pediatric burn patients. Design Retrospective, single-center study. Subjects Five hundred ninety-two severely burned pediatric patients who had burns covering more than 30% of the total body surface area and who were treated between 2001 and 2008 were enrolled in this study. Patients were divided into ≥ 85th percentile (n = 277) and normal (n = 315) weight groups based on body mass index percentiles. Results Patients stratified below (normal) and ≥ 85th percentile had similar age, gender distribution, and total burn size. No significant differences were detected in the incidence of sepsis (11% for obese vs. 10% for normal), the incidence of multiple organ failure (21% for obese and 16% for normal), or mortality (11% for obese vs. 8% for normal). Compared to the normal group, the ≥ 85th percentile group had low levels of constitutive proteins (α2macroglobulin and Apolipoprotein A-1) (p < 0.05 for both) as well as high levels of triglycerides and the acute-phase protein, C-reactive protein (p < 0.05 for both) up to 60 days after injury. Patients ≥ 85th percentile showed a significant higher loss of bone mineral density and lipolysis compared to normal individuals. Stepwise logistic regression analysis revealed that body mass index had a positive predictive value towards the maximum DENVER2 score, an index of organ failure (p < 0.001). Conclusions BMI ≥ 85th percentile altered the post-burn acute phase and catabolic response but did not increase the incidence of sepsis, multiple organ failure, or mortality in pediatric burn patients. Our results suggest that impaired metabolism and an altered inflammatory response occurs already in patients starting at the 85th percentile BMI.
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Affiliation(s)
- R Kraft
- Shriners Hospitals for Children, Galveston, TX, USA
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72
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Williams FN, Branski LK, Jeschke MG, Herndon DN. What, how, and how much should patients with burns be fed? Surg Clin North Am 2011; 91:609-29. [PMID: 21621699 DOI: 10.1016/j.suc.2011.03.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The hypermetabolic response to severe burn injury is characterized by hyperdynamic circulation and profound metabolic, physiologic, catabolic, and immune system derangements. Failure to satisfy overwhelming energy and protein requirements after, and during, severe burn injury results in multiorgan dysfunction, increased susceptibility to infection, and death. Attenuation of the hypermetabolic response by various pharmacologic modalities is emerging as an essential component of the management of patients with severe burn injury. This review focuses on the more recent advances in therapeutic strategies to attenuate the hypermetabolic response and its postburn-associated insulin resistance.
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Affiliation(s)
- Felicia N Williams
- Department of Surgery, Shriners Hospital for Children and University of Texas Medical Branch, 815 Market Street, Galveston, TX 77550, USA
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73
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Jeschke MG, Gauglitz GG, Kulp GA, Finnerty CC, Williams FN, Kraft R, Suman OE, Mlcak RP, Herndon DN. Long-term persistance of the pathophysiologic response to severe burn injury. PLoS One 2011; 6:e21245. [PMID: 21789167 PMCID: PMC3138751 DOI: 10.1371/journal.pone.0021245] [Citation(s) in RCA: 420] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 05/24/2011] [Indexed: 12/16/2022] Open
Abstract
Background Main contributors to adverse outcomes in severely burned pediatric patients are profound and complex metabolic changes in response to the initial injury. It is currently unknown how long these conditions persist beyond the acute phase post-injury. The aim of the present study was to examine the persistence of abnormalities of various clinical parameters commonly utilized to assess the degree hypermetabolic and inflammatory alterations in severely burned children for up to three years post-burn to identify patient specific therapeutic needs and interventions. Methodology/Principal Findings Patients: Nine-hundred seventy-seven severely burned pediatric patients with burns over 30% of the total body surface admitted to our institution between 1998 and 2008 were enrolled in this study and compared to a cohort non-burned, non-injured children. Demographics and clinical outcomes, hypermetabolism, body composition, organ function, inflammatory and acute phase responses were determined at admission and subsequent regular intervals for up to 36 months post-burn. Statistical analysis was performed using One-way ANOVA, Student's t-test with Bonferroni correction where appropriate with significance accepted at p<0.05. Resting energy expenditure, body composition, metabolic markers, cardiac and organ function clearly demonstrated that burn caused profound alterations for up to three years post-burn demonstrating marked and prolonged hypermetabolism, p<0.05. Along with increased hypermetabolism, significant elevation of cortisol, catecholamines, cytokines, and acute phase proteins indicate that burn patients are in a hyperinflammatory state for up to three years post-burn p<0.05. Conclusions Severe burn injury leads to a much more profound and prolonged hypermetabolic and hyperinflammatory response than previously shown. Given the tremendous adverse events associated with the hypermetabolic and hyperinflamamtory responses, we now identified treatment needs for severely burned patients for a much more prolonged time.
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Affiliation(s)
- Marc G Jeschke
- Shriners Hospitals for Children, University of Texas Medical Branch, Galveston, Texas, United States of America.
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Abstract
Cardiac stress, mediated by increased catecholamines, is the hallmark of severe burn injury typified by marked tachycardia, increased myocardial oxygen consumption, and increased cardiac output (CO). It remains one of the main determinants of survival in large burns. Currently, it is unknown for how long cardiac stress persists after a severe injury. Therefore, the aim of this study was to determine the extent and duration of cardiac stress after a severe burn. To determine persistence of cardiac alteration, the authors determined cardiac parameters of all surviving patients with burns ≥ 40% TBSA from 1998 to 2008. One hundred ninety-four patients were included in this study. Heart rate, mean arterial pressure, CO, stroke volume, cardiac index, and ejection fractions were measured at regular intervals from admission up to 2 years after injury. Rate pressure product was calculated as a correlate of myocardial oxygen consumption. All values were compared with normal nonburned children to validate the findings. Statistical analysis was performed using log transformed analysis of variance with Bonferroni correction and Student's t-test, where applicable. Heart rate, CO, cardiac index, and rate pressure product remained significantly increased in burned children for up to 2 years when compared with normal ranges (P < .05), indicating vastly increased cardiac stress. Ejection fraction was within normal limits for 2 years. Cardiac stress persists for at least 2 years postburn, and the authors suggest that attenuation of these detrimental responses may improve long-term morbidity.
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Abstract
A retrospective study of patients admitted to MetroHealth Medical Center was performed to identify the risk factors for short- and long-term ophthalmologic complications related to burn injury. From 2000 to 2007, the authors identified 293 patients with the inclusion criteria of facial burns, TBSA ≥20%, or smoke inhalation injury. Seventy (24%) developed ocular complications, and 16 (11%) developed long-term complications. Statistically significant risk factors identified for short-term complications were burn size, chemical burns, depth of facial burns, initial Glasgow Coma Scale, and need for mechanical ventilation/sedation. Risk factors for long-term complications included wound infection with Pseudomonas or Acinetobacter, third-degree burn size, hours to ophthalmology evaluation, LOS, time on mechanical ventilation, and need for STSG. In addition to facial burns, the requirement of mechanical ventilation, prolonged sedation, and presence of infection with Pseudomonas or Acinetobacter increase the risk of injury to the eye after burn injury, and these patients may benefit from serial eye examinations for early identification of ocular complications.
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Gauglitz GG, Williams FN, Herndon DN, Jeschke MG. Burns: where are we standing with propranolol, oxandrolone, recombinant human growth hormone, and the new incretin analogs? Curr Opin Clin Nutr Metab Care 2011; 14:176-81. [PMID: 21157309 PMCID: PMC3409635 DOI: 10.1097/mco.0b013e3283428df1] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
PURPOSE OF REVIEW The hypermetabolic response in critically ill patients is characterized by hyperdynamic circulatory, physiologic, catabolic and immune system responses. Failure to satisfy overwhelming energy and protein requirements after, and during critical illness, results in multiorgan dysfunction, increased susceptibility to infection, and death. Attenuation of the hypermetabolic response by various pharmacologic modalities is emerging as an essential component of the management of severe burn patients. This review focuses on the more recent advances in therapeutic strategies to attenuate the hypermetabolic response and its associated insulin resistance postburn. RECENT FINDINGS At present, beta-adrenergic blockade with propranolol represents probably the most efficacious anticatabolic therapy in the treatment of burns. Other pharmacological strategies include growth hormone, insulin-like growth factor, oxandrolone and intensive insulin therapy. SUMMARY Novel approaches to the management of critical illness by judicious glucose control and the use of pharmacologic modulators to the hypercatabolic response to critical illness have emerged. Investigation of alternative strategies, including the use of metformin, glucagon-like-peptide-1 and the PPAR-γ agonists are under current investigation.
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Affiliation(s)
- Gerd G Gauglitz
- Department of Dermatology and Allergology, Ludwig Maximilians University, Munich, Germany
| | | | - David N. Herndon
- Shriners Hospitals for Children, Galveston, Texas, USA
- Department of Surgery, University of Texas Medical Branch, Galveston, Texas, USA
| | - Marc G Jeschke
- Department of Surgery, Division of Plastic Surgery University of Toronto, Sunnybrook Research Institute Toronto, ON Canada
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Traber MG, Leonard SW, Traber DL, Traber LD, Gallagher J, Bobe G, Jeschke MG, Finnerty CC, Herndon D. α-Tocopherol adipose tissue stores are depleted after burn injury in pediatric patients. Am J Clin Nutr 2010; 92:1378-84. [PMID: 20881067 PMCID: PMC2980963 DOI: 10.3945/ajcn.2010.30017] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND We previously showed that thermal injury depletes plasma vitamin E in pediatric burn patients; however, plasma changes may reflect immediate alterations in vitamin E nutriture. Adipose tissue α-tocopherol concentrations are generally accepted to reflect long-term vitamin E status. OBJECTIVE To test the hypothesis that thermal injury depletes body stores of vitamin E, α-tocopherol concentrations were measured in adipose tissue samples. DESIGN Pediatric patients (n = 8) were followed up to 1 y after burn injury. Surgically obtained samples were collected at various intervals and stored at -80°C in a biorepository. α- and γ-Tocopherols, cholesterol, and triglycerides were measured in the same tissue aliquot. RESULTS During the first week after injury, adipose tissue α-tocopherol concentrations were within the expected normal range of 199 ± 40 nmol/g adipose tissue but were substantially lower at weeks 2 and 3 (133 ± 13 and 109 ± 8 nmol/g adipose tissue, respectively). Individual rates of decrease, estimated by linear regression, showed that adipose tissue α-tocopherol decreased by an average of 6.1 ± 0.6 nmol/g daily. During the first month after injury, adipose tissue triglyceride concentrations also decreased, whereas no changes in cholesterol concentrations occurred. CONCLUSIONS These data emphasize that the burn injury experienced by these pediatric patients altered their metabolism such that vitamin E status diminished during the month after injury. Further studies are needed to evaluate the mechanism and consequences of the observed vitamin E depletion. This trial was registered at clinicaltrials.gov as NCT00675714.
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Affiliation(s)
- Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331-6512, USA.
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Gandhi M, Thomson C, Lord D, Enoch S. Management of pain in children with burns. Int J Pediatr 2010; 2010:825657. [PMID: 20885937 PMCID: PMC2946605 DOI: 10.1155/2010/825657] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Accepted: 06/23/2010] [Indexed: 01/03/2023] Open
Abstract
Burn injuries are common in children under 10 years of age. Thermal injury is the most common mechanism of injury and scalds account for >60% of such injuries. All children with burns will experience pain, regardless of the cause, size, or burn depth. Undertreated pain can result in noncompliance with treatment and, consequently, prolonged healing. It is acknowledged that the monitoring and reporting of pain in children with burns has generally been poor. Due to the adverse physiological and emotional effects secondary to pain, adequate pain control is an integral and requisite component in the management of children with burns. A multidisciplinary approach is frequently necessary to achieve a robust pain relief. Key to successful treatment is the continuous and accurate assessment of pain and the response to therapy. This clinical review article discusses the essential aspects of the pathophysiology of burns in children provides an overview of pain assessment, the salient principles in managing pain, and the essential pharmacodynamics of commonly used drugs in children with burn injuries. Both pharmacological and nonpharmacological treatment options are discussed, although a detailed review of the latter is beyond the scope and remit of this article.
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Affiliation(s)
- M. Gandhi
- Central Manchester and Manchester University Children's Hospitals NHS Trust, Manchester, UK
| | - C. Thomson
- Central Manchester and Manchester University Children's Hospitals NHS Trust, Manchester, UK
| | - D. Lord
- Central Manchester and Manchester University Children's Hospitals NHS Trust, Manchester, UK
| | - S. Enoch
- University Hospitals of South and Central Manchester, Manchester, UK
- Royal Manchester Children's Hospital, Oxford Road, Manchester M13 9WL, UK
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Britt LD. The Mississippi River and the Southern Surgical Association: regional in name only (the impact of the Southern Surgical Association on the Advancement of Trauma Management). J Am Coll Surg 2010; 210:539-54. [PMID: 20421002 DOI: 10.1016/j.jamcollsurg.2010.01.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2010] [Accepted: 01/08/2010] [Indexed: 10/19/2022]
Affiliation(s)
- L D Britt
- Department of Surgery, Eastern Virginia Medical School, Norfolk, VA 23507-1912, USA.
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