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Haruta A, Mandell SP. Assessment and Management of Acute Burn Injuries. Phys Med Rehabil Clin N Am 2023; 34:701-716. [PMID: 37806692 DOI: 10.1016/j.pmr.2023.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Burn injuries can affect patients from all walks of life and represent a significant healthcare problem globally. The skin is the largest organ of the body and consequences of injury range of minor pain to severe end-organ dysfunction and even death. The acute assessment and management of burn-injured patients is a critical part of their short-term and long-term outcomes and often benefit from specialty, multidisciplinary care. Local wound care and appropriate excision and grafting are important parts of managing the functional, cosmetic, and physiologic derangements caused by burn injuries. Large burns also require judicious fluid resuscitation. Electrical, chemical, and inhalational injuries are less common than thermal burns but require additional care and are often associated with increased morbidity.
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Affiliation(s)
- Alison Haruta
- Department of Burns, Trauma, Acute, and Critical Care Surgery, UT Southwestern, 5323 Harry Hines Boulevard, Dallas, TX 75390-9005, USA.
| | - Samuel P Mandell
- Department of Burns, Trauma, Acute, and Critical Care Surgery, UT Southwestern, 5323 Harry Hines Boulevard, Dallas, TX 75390-9005, USA
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Greenhalgh DG, Hill DM, Burmeister DM, Gus EI, Cleland H, Padiglione A, Holden D, Huss F, Chew MS, Kubasiak JC, Burrell A, Manzanares W, Gómez MC, Yoshimura Y, Sjöberg F, Xie WG, Egipto P, Lavrentieva A, Jain A, Miranda-Altamirano A, Raby E, Aramendi I, Sen S, Chung KK, Alvarez RJQ, Han C, Matsushima A, Elmasry M, Liu Y, Donoso CS, Bolgiani A, Johnson LS, Vana LPM, de Romero RVD, Allorto N, Abesamis G, Luna VN, Gragnani A, González CB, Basilico H, Wood F, Jeng J, Li A, Singer M, Luo G, Palmieri T, Kahn S, Joe V, Cartotto R. Surviving Sepsis After Burn Campaign. Burns 2023; 49:1487-1524. [PMID: 37839919 DOI: 10.1016/j.burns.2023.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 05/02/2023] [Indexed: 10/17/2023]
Abstract
INTRODUCTION The Surviving Sepsis Campaign was developed to improve outcomes for all patients with sepsis. Despite sepsis being the primary cause of death after thermal injury, burns have always been excluded from the Surviving Sepsis efforts. To improve sepsis outcomes in burn patients, an international group of burn experts developed the Surviving Sepsis After Burn Campaign (SSABC) as a testable guideline to improve burn sepsis outcomes. METHODS The International Society for Burn Injuries (ISBI) reached out to regional or national burn organizations to recommend members to participate in the program. Two members of the ISBI developed specific "patient/population, intervention, comparison and outcome" (PICO) questions that paralleled the 2021 Surviving Sepsis Campaign [1]. SSABC participants were asked to search the current literature and rate its quality for each topic. At the Congress of the ISBI, in Guadalajara, Mexico, August 28, 2022, a majority of the participants met to create "statements" based on the literature. The "summary statements" were then sent to all members for comment with the hope of developing an 80% consensus. After four reviews, a consensus statement for each topic was created or "no consensus" was reported. RESULTS The committee developed sixty statements within fourteen topics that provide guidance for the early treatment of sepsis in burn patients. These statements should be used to improve the care of sepsis in burn patients. The statements should not be considered as "static" comments but should rather be used as guidelines for future testing of the best treatments for sepsis in burn patients. They should be updated on a regular basis. CONCLUSION Members of the burn community from the around the world have developed the Surviving Sepsis After Burn Campaign guidelines with the goal of improving the outcome of sepsis in burn patients.
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Affiliation(s)
- David G Greenhalgh
- Department of Burns, Shriners Children's Northern California and Department of Surgery, University of California, Davis, Sacramento, CA, USA.
| | - David M Hill
- Department of Clinical Pharmacy & Translational Scre have been several studies that have evaluatedience, College of Pharmacy, University of Tennessee, Health Science Center; Memphis, TN, USA
| | - David M Burmeister
- Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Eduardo I Gus
- Division of Plastic & Reconstructive Surgery, The Hospital for Sick Children; Department of Surgery, University of Toronto, Toronto, Canada
| | - Heather Cleland
- Department of Surgery, Monash University and Alfred Hospital, Melbourne, Australia
| | - Alex Padiglione
- Department of Surgery, Monash University and Alfred Hospital, Melbourne, Australia
| | - Dane Holden
- Department of Surgery, Monash University and Alfred Hospital, Melbourne, Australia
| | - Fredrik Huss
- Department of Surgical Sciences, Plastic Surgery, Uppsala University/Burn Center, Department of Plastic and Maxillofacial Surgery, Uppsala University Hospital, Uppsala, Sweden
| | - Michelle S Chew
- Department of Anaesthesia and Intensive Care, Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - John C Kubasiak
- Department of Surgery, Loyola University Medical Center, Maywood, IL, USA
| | - Aidan Burrell
- Department of Epidemiology and Preventative Medicine, Monash University and Alfred Hospital, Intensive Care Research Center (ANZIC-RC), Melbourne, Australia
| | - William Manzanares
- Department of Critical Care Medicine, Universidad de la República (UdelaR), Montevideo, Uruguay
| | - María Chacón Gómez
- Division of Intensive Care and Critical Medicine, Centro Nacional de Investigacion y Atencion de Quemados (CENIAQ), National Rehabilitation Institute, LGII, Mexico
| | - Yuya Yoshimura
- Department of Emergency and Critical Care Medicine, Hachinohe City Hospital, Hachinohe, Japan
| | - Folke Sjöberg
- Department of Anaesthesia and Intensive Care, Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Wei-Guo Xie
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, China
| | - Paula Egipto
- Centro Hospitalar e Universitário São João - Burn Unit, Porto, Portugal
| | | | | | | | - Ed Raby
- Infectious Diseases Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | | | - Soman Sen
- Department of Burns, Shriners Children's Northern California and Department of Surgery, University of California, Davis, Sacramento, CA, USA
| | - Kevin K Chung
- Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | | | - Chunmao Han
- Department of Burn and Wound Repair, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, China
| | - Asako Matsushima
- Department of Emergency and Critical Care, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Moustafa Elmasry
- Department of Hand, Plastic Surgery and Burns, Linköping University, Linköping, Sweden
| | - Yan Liu
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Carlos Segovia Donoso
- Intensive Care Unit for Major Burns, Mutual Security Clinical Hospital, Santiago, Chile
| | - Alberto Bolgiani
- Department of Surgery, Deutsches Hospital, Buenos Aires, Argentina
| | - Laura S Johnson
- Department of Surgery, Emory University School of Medicine and Grady Health System, Georgia
| | - Luiz Philipe Molina Vana
- Disciplina de Cirurgia Plastica da Escola Paulista de Medicina da Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | | | - Nikki Allorto
- Grey's Hospital Pietermaritzburg Metropolitan Burn Service, University of KwaZulu Natal, Pietermaritzburg, South Africa
| | - Gerald Abesamis
- Alfredo T. Ramirez Burn Center, Division of Burns, Department of Surgery, University of Philippines Manila - Philippine General Hospital, Manila, Philippines
| | - Virginia Nuñez Luna
- Unidad Michou y Mau Xochimilco for Burnt Children, Secretaria Salud Ciudad de México, Mexico
| | - Alfredo Gragnani
- Disciplina de Cirurgia Plastica da Escola Paulista de Medicina da Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - Carolina Bonilla González
- Department of Pediatrics and Intensive Care, Pediatric Burn Unit, Clinical Studies and Clinical Epidemiology Division, Fundación Santa Fe de Bogotá, Bogotá, Colombia
| | - Hugo Basilico
- Intensive Care Area - Burn Unit - Pediatric Hospital "Prof. Dr. Juan P. Garrahan", Buenos Aires, Argentina
| | - Fiona Wood
- Department of Surgery, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - James Jeng
- Department of Surgery, University of California, Irvine, CA, USA
| | - Andrew Li
- Department of Surgery, Monash University and Alfred Hospital, Melbourne, Australia
| | - Mervyn Singer
- Department of Intensive Care Medicine, University College London, London, United Kingdom
| | - Gaoxing Luo
- Institute of Burn Research, Southwest Hospital, Army (Third Military) Medical University, Chongqing, China
| | - Tina Palmieri
- Department of Burns, Shriners Children's Northern California and Department of Surgery, University of California, Davis, Sacramento, CA, USA
| | - Steven Kahn
- The South Carolina Burn Center, Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Victor Joe
- Department of Surgery, University of California, Irvine, CA, USA
| | - Robert Cartotto
- Department of Surgery, Sunnybrook Medical Center, Toronto, Ontario, Canada
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Greenhalgh DG, Cartotto R, Taylor SL, Fine JR, Lewis GM, Smith DJ, Marano MA, Gibson A, Wibbenmeyer LA, Holmes JH, Rizzo JA, Foster KN, Khandelwal A, Fischer S, Hemmila MR, Hill D, Aballay AM, Tredget EE, Goverman J, Phelan H, Jimenez CJ, Baldea A, Sood R. Burn Resuscitation Practices in North America: Results of the Acute Burn ResUscitation Multicenter Prospective Trial (ABRUPT). Ann Surg 2023; 277:512-519. [PMID: 34417368 PMCID: PMC8857312 DOI: 10.1097/sla.0000000000005166] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES ABRUPT was a prospective, noninterventional, observational study of resuscitation practices at 21 burn centers. The primary goal was to examine burn resuscitation with albumin or crystalloids alone, to design a future prospective randomized trial. SUMMARY BACKGROUND DATA No modern prospective study has determined whether to use colloids or crystalloids for acute burn resuscitation. METHODS Patients ≥18 years with burns ≥ 20% total body surface area (TBSA) had hourly documentation of resuscitation parameters for 48 hours. Patients received either crystalloids alone or had albumin supplemented to crystalloid based on center protocols. RESULTS Of 379 enrollees, two-thirds (253) were resuscitated with albumin and one-third (126) were resuscitated with crystalloid alone. Albumin patients received more total fluid than Crystalloid patients (5.2 ± 2.3 vs 3.7 ± 1.7 mL/kg/% TBSA burn/24 hours), but patients in the Albumin Group were older, had larger burns, higher admission Sequential Organ Failure Assessment (SOFA) scores, and more inhalation injury. Albumin lowered the in-to-out (I/O) ratio and was started ≤12 hours in patients with the highest initial fluid requirements, given >12 hours with intermediate requirements, and avoided in patients who responded to crystalloid alone. CONCLUSIONS Albumin use is associated with older age, larger and deeper burns, and more severe organ dysfunction at presentation. Albumin supplementation is started when initial crystalloid rates are above expected targets and improves the I/O ratio. The fluid received in the first 24 hours was at or above the Parkland Formula estimate.
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Affiliation(s)
- David G. Greenhalgh
- Department of Surgery, University of California, Davis School of Medicine and Shriners Hospitals for Children Northern California, Sacramento, CA
| | - Robert Cartotto
- Department of Surgery, Sunnybrook Medical Center, Toronto, Ontario
| | - Sandra L. Taylor
- Department of Public Health Sciences, School of Medicine, University of California, Davis, Sacramento, CA
| | - Jeffrey R. Fine
- Department of Public Health Sciences, School of Medicine, University of California, Davis, Sacramento, CA
| | | | - David J. Smith
- Department of Surgery, University of South Florida, Tampa, FL
| | | | - Angela Gibson
- Department of Surgery, University of Wisconsin, Madison, WI
| | | | - James H. Holmes
- Department of Surgery, Wake Forrest University, Winston-Salem, NC
| | - Julie A. Rizzo
- Department of Surgery, Institute of Surgical Research, San Antonio, TX
| | | | | | - Sarah Fischer
- Department of Surgery, Ascension Via Christi St. Francis, Wichita, KS
| | - Mark R. Hemmila
- Department of Surgery, University of Michigan, Ann Arbor, MI
| | - David Hill
- Department of Pharmacy, University of Tennessee Health Science Center, Memphis, TN
| | | | - Edward E. Tredget
- Department of Plastic Surgery, University of Alberta, Edmonton, Alberta
| | - Jeremy Goverman
- Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - Herbert Phelan
- Department of Surgery, University of Texas, Southwestern Medical Center, Dallas, TX
| | - Carlos J. Jimenez
- Department of Surgery, University of Texas Medical Branch, Galveston, TX
| | - Anthony Baldea
- Department of Surgery, University of Loyola, Maywood, IL
| | - Rajiv Sood
- Department of Plastic Surgery, University of Indiana, Indianapolis, IN
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Rogers AD, Amaral A, Cartotto R, El Khatib A, Fowler R, Logsetty S, Malic C, Mason S, Nickerson D, Papp A, Rasmussen J, Wallace D. Choosing wisely in burn care. Burns 2022; 48:1097-1103. [PMID: 34563420 DOI: 10.1016/j.burns.2021.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/15/2021] [Accepted: 09/13/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND The Choosing Wisely Campaign was launched in 2012 and has been applied to a broad spectrum of disciplines in almost thirty countries, with the objective of reducing unnecessary or potentially harmful investigations and procedures, thus limiting costs and improving outcomes. In Canada, patients with burn injuries are usually initially assessed by primary care and emergency providers, while plastic or general surgeons provide ongoing management. We sought to develop a series of Choosing Wisely statements for burn care to guide these practitioners and inform suitable, cost-effective investigations and treatment choices. METHODS The Choosing Wisely Canada list for Burns was developed by members of the Canadian Special Interest Group of the American Burn Association. Eleven recommendations were generated from an initial list of 29 statements using a modified Delphi process and SurveyMonkey™. RESULTS Recommendations included statements on avoidance of prophylactic antibiotics, restriction of blood products, use of adjunctive analgesic medications, monitoring and titration of opioid analgesics, and minimizing 'routine' bloodwork, microbiology or radiological investigations. CONCLUSIONS The Choosing Wisely recommendations aim to encourage greater discussion between those involved in burn care, other health care professionals, and their patients, with a view to reduce the cost and adverse effects associated with unnecessary therapeutic and diagnostic procedures, while still maintaining high standards of evidence-based burn care.
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Affiliation(s)
- A D Rogers
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
| | - A Amaral
- Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - R Cartotto
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - A El Khatib
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - R Fowler
- Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - S Logsetty
- Manitoba Firefighters Burn Unit, Department of Surgery, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - C Malic
- Division of Plastic and Reconstructive Surgery, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada
| | - S Mason
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - D Nickerson
- Calgary Firefighters' Burn Treatment Centre, Foothills Medical Centre, Department of Surgery, University of Calgary, Alberta, Canada
| | - A Papp
- BC Professional Firefighters' Burn Unit, Vancouver General Hospital, Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - J Rasmussen
- Queen Elizabeth II Health Sciences Centre Burn Unit, Dalhousie University, Halifax, Nova Scotia, Canada
| | - D Wallace
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
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Cartotto R, Burmeister DM, Kubasiak JC. Burn Shock and Resuscitation: Review and State of the Science. J Burn Care Res 2022; 43:irac025. [PMID: 35218662 DOI: 10.1093/jbcr/irac025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Indexed: 12/31/2022]
Abstract
Burn shock and acute fluid resuscitation continue to spark intense interest and debate among burn clinicians. Following a major burn injury, fluid resuscitation of burn shock is life-saving, but paradoxically can also be a source of increased morbidity and mortality because of the unintended consequence of systemic edema formation. Considerable research over the past two decades has been devoted to understanding the mechanisms of edema formation, and to develop strategies to curb resuscitation fluids and limit edema development. Recognition of burn endotheliopathy - injury to the endothelium's glycocalyx layer- is one of the most important recent developments in our understanding of burn shock pathophysiology. Newer monitoring approaches and resuscitation endpoints, along with alternative resuscitation strategies to crystalloids alone, such as administration of albumin, or plasma, or high dose ascorbic acid, have had mixed results in limiting fluid creep. Clear demonstration of improvements in outcomes with all of these approaches remains elusive. This comprehensive review article on burn shock and acute resuscitation accompanies the American Burn Association's State of the Science meeting held in New Orleans, LA on November 2-3, 2021 and the Proceedings of that conference published in this journal.
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Affiliation(s)
- Robert Cartotto
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, and University of Toronto, Canada
| | - David M Burmeister
- Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland and United States Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas USA
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Gibran NS, Shipper E, Phuong J, Braverman M, Bixby P, Price MA, Bulger EM. Developing a national trauma research action plan: Results from the Burn Research Gap Delphi Survey. J Trauma Acute Care Surg 2022; 92:201-212. [PMID: 34554139 DOI: 10.1097/ta.0000000000003409] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The 2016 National Academies of Science, Engineering and Medicine call for a national integrated, military-civilian trauma action plan to achieve zero preventable deaths and disability after injury included a proposal to establish a National Trauma Research Action Plan to "strengthen trauma research and ensure that the resources available for this research are commensurate with the importance of injury and the potential for improvement in patient outcomes." The Department of Defense funded the Coalition for National Trauma Research to generate a comprehensive research agenda spanning the continuum of trauma/burn care from prehospital to rehabilitation. The Burn/Reconstructive Surgery group represents one focus area for this research agenda development. METHODS Experts in burn and reconstructive surgery research identified gaps in knowledge, generated research questions and prioritized questions using a consensus driven Delphi survey approach. Participants were identified using established Delphi recruitment guidelines to ensure heterogeneity and generalizability with military and civilian representatives. Literature reviews informed the panel. Panelists were encouraged to use a PICO format to generate research questions: Patient/Population; Intervention; Compare/Control; Outcome. Participants ranked the priority of each question on a nine-point Likert scale, which was categorized to represent low, medium, and high priority items. Consensus was defined based on ≥60% panelist agreement. RESULTS Subject matter experts generated 949 research questions in 29 Burn & 26 Reconstruction topics. Five hundred ninety-seven questions reached consensus. Of these, 338 (57%) were high-priority, 180 (30%), medium-priority, and 78 (13%) low-priority questions. CONCLUSION Many high-priority questions translate to complex wound management and outcomes. Panel recognition that significant gaps in knowledge exist in understanding functional outcomes after injury underscores the importance of long-term recovery metrics even when studying acute injury or interventions such as resuscitation or inhalation injury. Funding agencies and burn/reconstructive surgery researchers should consider these gaps when they prioritize future research. LEVEL OF EVIDENCE Expert consensus, Level IV.
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Affiliation(s)
- Nicole S Gibran
- From the Harborview Medical Center UW Department of Surgery (N.S.G., E.B.), Seattle WA; UW Department of Biomedical Informatics and Medical Education (J.P.), Seattle WA; Coalition for National Trauma Research (E.S., M.B., P.B., M.P.), San Antonio, Texas
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Cartotto R, Callum J. A Review on the Use of Plasma During Acute Burn Resuscitation. J Burn Care Res 2021; 41:433-440. [PMID: 31734693 DOI: 10.1093/jbcr/irz184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The problem of fluid creep has generated renewed interest in the use of colloids during acute burn resuscitation. Currently, human albumin solution is usually chosen as the resuscitation colloid. However, human plasma was a fundamental component of numerous burn resuscitation formulas historically, but it largely fell out of favor due to concerns surrounding transmission of infectious viruses. Nevertheless, plasma is an effective volume expander which has been demonstrated to reduce overall volume requirements during burn resuscitation. Furthermore, plasma may have beneficial effects on the endothelium by diminishing the microvascular leak that follows a major burn injury. Fresh frozen plasma (FFP) is now much safer from a disease transmission standpoint, and newer forms of solvent-detergent-treated plasma and lyophilized plasma offer potentially even greater safety and efficacy. The use of FFP and newer forms of plasma, which have not been extensively studied, should be investigated as potential adjuncts to acute burn resuscitation.
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Affiliation(s)
| | - Jeannie Callum
- Department of Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre, University of Toronto, Canada
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Comish P, Walsh M, Castillo-Angeles M, Kuhlenschmidt K, Carlson D, Arnoldo B, Kubasiak J. Adoption of rescue colloid during burn resuscitation decreases fluid administered and restores end-organ perfusion. Burns 2021; 47:1844-1850. [PMID: 33658146 DOI: 10.1016/j.burns.2021.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/25/2021] [Accepted: 02/11/2021] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Traditionally, lactated Ringer's solution (LR) has been utilized for the resuscitation of thermally injured patients via the Parkland or Brooke formulas. Both of these formulas include colloid supplementation after 24 h of resuscitation. Recently, the addition of albumin within the initial resuscitation has been reported to decrease fluid creep and hourly fluids given. Our institution has previously advocated for a crystalloid-driven resuscitation. Given reports of improved outcomes with albumin, we pragmatically adjusted these practices and present our findings for doing so. METHODS Our burn registry, consisting of prospectively collected patient data, was queried for those at least 18 years of age who, between July 2017 and December 2018, sustained a thermal injury and completed a formal resuscitation (24 h). At the attending physician's discretion, rescue colloid was administered using 25% albumin for those failing to respond to traditional resuscitation (patients with sustained urine output of <0.5 mL/kg over 2-3 h, or unstable vital signs and ongoing fluid administration). We compared the total volume of the crystalloid-only and rescue colloid resuscitation fluids given to patients. We also examined the in/out fluid balances during resuscitation. Statistical analysis was performed using Stata software. RESULTS A total of 91 patients with thermal injuries were included: the median age was 40 (IQR 31-57), 73% were male, and 30 patients received rescue albumin. The percentage of total body surface area burned (%TBSA) was greater in those who received rescue albumin (40.3% vs. 34%; p = 0.047). Despite a higher %TBSA in the albumin group, the total LR given during resuscitation was not significantly different between groups (15,914.43 mL vs. 11,828.71 mL; p = 0.129) even when normalized for TBSA and weight (ml LR/kg/%TBSA: 4.31 vs. 3.66; p = 0.129. The average in/out fluid ratio for the rescue group was higher than for the crystalloid group (0.83 ± 0.05 vs. 0.59 ± 0.11; p = 0.06) and returned to normal after colloid administration. CONCLUSION Rescue albumin administration decreases the amount of fluid administered per %TBSA during resuscitation, and also increases end organ function as evidenced by increased urinary output. These effects occurred in patients who sustained larger burns and failed to respond to traditional crystalloid resuscitation. Our findings led us to modify our current protocol and a related prospective study of clinical outcomes.
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Affiliation(s)
- Paul Comish
- University of Texas Southwestern Medical Center, Department of Surgery, Dallas, TX, United States.
| | - Maura Walsh
- University of Texas Southwestern Medical Center, Department of Surgery, Dallas, TX, United States
| | | | - Kali Kuhlenschmidt
- University of Texas Southwestern Medical Center, Department of Surgery, Dallas, TX, United States
| | - Deborah Carlson
- University of Texas Southwestern Medical Center, Department of Surgery, Dallas, TX, United States
| | - Brett Arnoldo
- University of Texas Southwestern Medical Center, Department of Surgery, Dallas, TX, United States
| | - John Kubasiak
- University of Texas Southwestern Medical Center, Department of Surgery, Dallas, TX, United States
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Tan J, Zhou J, Li N, Yuan L, Luo G. A new resuscitation formula based on burn index provides more reliable prediction for fluid requirement in adult major burn patients. J Burn Care Res 2021; 42:962-967. [PMID: 33484561 DOI: 10.1093/jbcr/irab013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND The Third Military Medical University (TMMU) formula is widely utilized in the fluid resuscitation in China. However, the actual volume needs usually exceed the prediction provided by the TMMU formula in major burn patients with a high proportion of full-thickness burn wounds. METHOD This retrospective study included 149 adult major burn patients (≥40% TBSA) who were admitted to the Burn Department, Southwest Hospital from 2014 to 2020 and received appropriate fluid resuscitation by the TMMU protocol. The actual volume infused in the first 48 hours post-burn was compared to the estimation by the TMMU formula. A new fluid volume prediction formula was developed by multivariate linear regression analysis. RESULT The mean fluid requirements were 2.35 ml/kg/%TBSA and 1.75 ml/kg/%TBSA in the 1 st and 2 nd 24 hours post-burn, respectively. The TMMU formula underestimated the fluid requirement, and its prediction accuracy was 54.1% and 25.8% for the 1 st and 2 nd 24 hours, respectively. The proportion of full-thickness burn wound was found to be associated with the fluid requirements after burn. A revised multifactorial formula consisting of the burn index, body weight and inhalation injury was developed. Using the revised formula, the prediction reliability of resuscitation fluid volume improved to 65.3% and 61.1% in the 1st and 2nd 24 hours, respectively. CONCLUSION The TMMU formula showed low accuracy in predicting fluid requirements among major burn patients. A revised formula based on burn index was developed to provide better guidance for initiative fluid resuscitation for major burns by the TMMU protocol.
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Affiliation(s)
- Jianglin Tan
- State Key Laboratory of Trauma, Burn and Combined Injury; Institute of Burn Research, Southwest Hospital, the Army Military Medical University (Third Military Medical University); Chongqing, China
| | - Junyi Zhou
- State Key Laboratory of Trauma, Burn and Combined Injury; Institute of Burn Research, Southwest Hospital, the Army Military Medical University (Third Military Medical University); Chongqing, China
| | - Ning Li
- State Key Laboratory of Trauma, Burn and Combined Injury; Institute of Burn Research, Southwest Hospital, the Army Military Medical University (Third Military Medical University); Chongqing, China
| | - Lili Yuan
- State Key Laboratory of Trauma, Burn and Combined Injury; Institute of Burn Research, Southwest Hospital, the Army Military Medical University (Third Military Medical University); Chongqing, China
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury; Institute of Burn Research, Southwest Hospital, the Army Military Medical University (Third Military Medical University); Chongqing, China
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Hill DM, Rizzo JA, Aden JK, Hickerson WL, Chung KK. Continuous Venovenous Hemofiltration is Associated with Improved Survival in Burn Patients with Shock: A Subset Analysis of a Multicenter Observational Study. Blood Purif 2020; 50:473-480. [PMID: 33264769 DOI: 10.1159/000512101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/02/2020] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Acute kidney injury (AKI) is associated with high mortality in burn patients. Previously, we reported that timely initiation of renal replacement therapy (RRT) with an individualized preference toward continuous modes at relatively higher than recommended doses has become standard practice in critically ill burn patients with AKI and is associated with a historically low mortality. The purpose of this cohort analysis was to determine if modality choice impacted survival in burn patients. METHODS After Institutional Review Board approval, a subset analysis was performed on de-identified data collected during a multicenter, observational study. All patients (n = 170) were 18 years or older, admitted with severe burn injuries and started on RRT. Comparisons were made utilizing χ2 or Fisher's exact test. Kaplan-Meier plots were utilized to assess survival. Sample size determinations to aid future research were calculated utilizing χ2 test with a Yates Correction Factor. RESULTS Demographics and revised Baux were similar between groups. When continuous venovenous hemofiltration (CVVH) was compared to all other modalities, there was no statistically significant difference in survival (56 vs. 43%, p = 0.124). However, survival was significantly improved (54 vs. 37%, p = 0.032) in the subset of patients requiring vasopressors (n = 77). There was no statistically significant survival difference in patients with inhalation injury (38 vs. 29%, p = 0.638) or acute lung injury/acute respiratory distress syndrome (51 vs. 33%, p = 0.11). DISCUSSION/CONCLUSION Survival may be improved if CVVH is chosen as the preferred modality in burn patients with shock and requiring RRT. Differences in other subsets were promising, but analysis was underpowered. Further research should determine if modality choice provides survival benefit in any other subset of burn injury.
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Affiliation(s)
- David M Hill
- Firefighters Burn Center, Regional One Health, Memphis, Tennessee, USA,
| | - Julie A Rizzo
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA.,Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - James K Aden
- Brooke Army Medical Center, Fort Sam Houston, Texas, USA
| | | | - Kevin K Chung
- Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
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You GX, Li BT, Wang Z, Wang Q, Wang Y, Zhao JX, Zhao L, Zhou H. Effects of different plasma expanders on rats subjected to severe acute normovolemic hemodilution. Mil Med Res 2020; 7:55. [PMID: 33172500 PMCID: PMC7656672 DOI: 10.1186/s40779-020-00282-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 10/18/2020] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Plasma expanders are widely used for acute normovolemic hemodilution (ANH). However, existing studies have not focused on large-volume infusion with colloidal plasma expanders, and there is a lack of studies that compare the effects of different plasma expanders. METHODS The viscosity, hydrodynamic radius (Rh) and colloid osmotic pressure (COP) of plasma expanders were determined by a cone-plate viscometer, Zetasizer and cut-off membrane, respectively. Sixty male rats were randomized into five groups with Gelofusine (Gel), Hydroxyethyl Starch 200/0.5 (HES200), Hydroxyethyl Starch 130/0.4 (HES130), Hydroxyethyl Starch 40 (HES40), and Dextran40 (Dex40), with 12 rats used in each group to build the ANH model. ANH was performed by the withdrawal of blood and simultaneous infusion of plasma expanders. Acid-base, lactate, blood gas and physiological parameters were detected. RESULTS Gel had a lower intrinsic viscosity than HES200 and HES130 (P < 0.01), but at a low shear rate in a mixture of colloids, red cells and plasma, Gel had a higher viscosity (P < 0.05 or P < 0.01, respectively). For hydroxyethyl starch plasma expanders, the COP at a certain concentration decreases from 11.1 mmHg to 6.1 mmHg with the increase of Rh from 10.7 nm to 20.2 nm. A severe ANH model, with the hematocrit of 40% of the baseline level, was established and accompanied by disturbances in acid-base, lactate and blood gas parameters. At the end of ANH and 60 min afterward, the Dex40 group showed a worse outcome in maintaining the acid-base balance and systemic oxygenation compared to the other groups. The systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP) decreased significantly in all groups at the end of ANH. The DBP and MAP in the Dex40 group further decreased 60 min after the end of ANH. During the process of ANH, the Dex40 group showed a drop and recovery in SBP, DBP and MAP. The DBP and MAP in the HES200 group were significantly higher than those in the other groups at some time points (P < 0.05 or P < 0.01). CONCLUSION Gel had a low intrinsic viscosity but may increase the whole blood viscosity at low shear rates. Rh and COP showed a strong correlation among hydroxyethyl starch plasma expanders. Dex40 showed a worse outcome in maintaining the acid-base balance and systemic oxygenation compared to the other plasma expanders. During the process of ANH, Dex40 displayed a V-shaped recovery pattern for blood pressure, and HES200 had the advantage in sustaining the DBP and MAP at some time points.
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Affiliation(s)
- Guo-Xing You
- Institute of Health Service and Transfusion Medicine, Bejing, 100850, China
| | - Bing-Ting Li
- Institute of Health Service and Transfusion Medicine, Bejing, 100850, China
| | - Zhen Wang
- Institute of Health Service and Transfusion Medicine, Bejing, 100850, China
| | - Quan Wang
- Institute of Health Service and Transfusion Medicine, Bejing, 100850, China
| | - Ying Wang
- Institute of Health Service and Transfusion Medicine, Bejing, 100850, China
| | - Jing-Xiang Zhao
- Institute of Health Service and Transfusion Medicine, Bejing, 100850, China
| | - Lian Zhao
- Institute of Health Service and Transfusion Medicine, Bejing, 100850, China.
| | - Hong Zhou
- Institute of Health Service and Transfusion Medicine, Bejing, 100850, China.
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12
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Dittrich MHM, Hosni ND, de Carvalho WB. Association between fluid creep and infection in burned children: A cohort study. Burns 2020; 46:1036-1042. [DOI: 10.1016/j.burns.2020.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/21/2020] [Accepted: 02/06/2020] [Indexed: 02/01/2023]
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13
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Lang TC, Zhao R, Kim A, Wijewardena A, Vandervord J, Xue M, Jackson CJ. A Critical Update of the Assessment and Acute Management of Patients with Severe Burns. Adv Wound Care (New Rochelle) 2019; 8:607-633. [PMID: 31827977 PMCID: PMC6904939 DOI: 10.1089/wound.2019.0963] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 04/18/2019] [Indexed: 12/14/2022] Open
Abstract
Significance: Burns are debilitating, life threatening, and difficult to assess and manage. Recent advances in assessment and management have occurred since a comprehensive review of the care of patients with severe burns was last published, which may influence research and clinical practice. Recent Advances: Recent advances have occurred in the understanding of burn pathophysiology, which has led to the identification of potential biomarkers of burn severity, such as protein C. There is new evidence about the potential superiority of natural colloids over crystalloids during fluid resuscitation, and new evidence about components of initial and perioperative management, including an improved understanding of pain following burns. Critical Issues: The limitations of the clinical examination highlight the need for imaging and biomarkers to assist in estimations of burn severity. Fluid resuscitation reduces mortality, although there is conjecture over the ideal method. The subsequent perioperative period is associated with significant morbidity and the evidence for preventing and treating pain, infection, and fluid overload while maximizing wound healing potential is described. Future Directions: Promising developments are ongoing in imaging technology, histopathology, biomarkers, and wound healing adjuncts such as hyperbaric oxygen therapy, topical negative pressure therapy, stem cell treatments, and skin substitutes. The greatest benefit from further research on management of patients with burns would most likely be derived from the elucidation of optimal fluid resuscitation protocols, pain management protocols, and surgical techniques from randomized controlled trials.
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Affiliation(s)
- Thomas Charles Lang
- Department of Anesthesia, Prince of Wales and Sydney Children's Hospitals, Randwick, Australia
| | - Ruilong Zhao
- Sutton Laboratories, The Kolling Institute, St. Leonards, Australia
| | - Albert Kim
- Department of Critical Care Medicine, Royal North Shore Hospital, St. Leonards, Australia
| | - Aruna Wijewardena
- Department of Burns, Reconstructive and Plastic Surgery, Royal North Shore Hospital, St. Leonards, Australia
| | - John Vandervord
- Department of Burns, Reconstructive and Plastic Surgery, Royal North Shore Hospital, St. Leonards, Australia
| | - Meilang Xue
- Sutton Laboratories, The Kolling Institute, St. Leonards, Australia
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14
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Gurney JM, Kozar RA, Cancio LC. Plasma for burn shock resuscitation: is it time to go back to the future? Transfusion 2019; 59:1578-1586. [PMID: 30980739 DOI: 10.1111/trf.15243] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 02/11/2019] [Accepted: 02/11/2019] [Indexed: 12/25/2022]
Abstract
Patients with burn shock can be challenging to resuscitate. Burn shock produces a variety of physiologic derangements: Patients are hypovolemic from volume loss, have a increased systemic vascular resistance, and may have a depressed cardiac output depending on the extent of the thermal injury. Additionally, the burn wound produces a significant inflammatory cascade of events that contributes to the shock state. Fluid resuscitation is foundational for the initial treatment of burn shock. Typical resuscitation is with intravenous lactated Ringer's in accordance with well-established formulas based on burn wound size. In the past century, as therapies to treat thermal injuries were being developed, plasma was the fluid used for burn resuscitation; in fact, plasma was used in World War II and throughout the 1950s and 1960s. Plasma was abandoned because of infectious risks and complications. Despite huge strides in transfusion medicine and the increased safety of blood products, plasma has never been readopted for burn resuscitation. Over the past 15 years, there has been a paradigm shift in trauma resuscitation: Less crystalloid and more blood products are used; this strategy has demonstrated improved outcomes. Plasma is a physiologic fluid that stabilizes the endothelium. The endotheliopathy of trauma has been described and is mitigated by transfusion strategies with a 1:1 ratio of RBCs to plasma. Thermal injury also results in endothelial dysfunction: the endotheliopathy of burns. Plasma is likely a better resuscitation fluid for patients with significant burn wounds because of its capability to restore intravascular volume status and treat the endotheliopathy of burns.
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Affiliation(s)
- Jennifer M Gurney
- US Army Institute of Surgical Research, San Antonio, Texas.,Department of Surgery, Joint Trauma System, San Antonio, Texas
| | - Rosemary A Kozar
- Department of Surgery, Shock Trauma Center, University of Maryland School of Medicine, Baltimore, Maryland
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15
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Lang TC, Zhao R, Kim A, Wijewardena A, Vandervord J, McGrath R, Fitzpatrick S, Fulcher G, Jackson CJ. Plasma protein C levels are directly associated with better outcomes in patients with severe burns. Burns 2019; 45:1659-1672. [PMID: 31221425 DOI: 10.1016/j.burns.2019.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/20/2019] [Accepted: 05/01/2019] [Indexed: 11/30/2022]
Abstract
Protein C circulates in human plasma to regulate inflammation and coagulation. It has shown a crucial role in wound healing in animals, and low plasma levels predict the presence of a wound in diabetic patients. However, no detailed study has measured protein C levels in patients with severe burns over the course of a hospital admission. A severe burn is associated with dysfunction of inflammation and coagulation as well as a significant risk of morbidity and mortality. The current methods of burn assessment have shortcomings in reliability and have limited prognostic value. The discovery of a biomarker that estimates burn severity and predicts clinical events with greater accuracy than current methods may improve management, resource allocation and patient counseling. This is the first study to assess the potential role of protein C as a biomarker of burn severity. We measured the plasma protein C levels of 86 patients immediately following a severe burn, then every three days over the first three weeks of a hospital admission. We also analysed the relationships between burn characteristics, blood test results including plasma protein C levels and clinical events. We used a primary composite outcome of increased support utilisation defined as: a mean intravenous fluid administration volume of five litres or more per day over the first 72 h of admission, a length of stay in the intensive care unit of more than four days, or greater than four surgical procedures during admission. The hypothesis was that low protein C levels would be negatively associated with increased support utilisation. At presentation to hospital after a severe burn, the mean plasma protein C level was 76 ± 20% with a range of 34-130% compared to the normal range of 70-180%. The initial low can be plausibly explained by impaired synthesis, increased degradation and excessive consumption of protein C following a burn. Levels increased gradually over six days then remained at a steady-state until the end of the inpatient study period, day 21. A multivariable regression model (Nagelkerke's R2 = 0.83) showed that the plasma protein C level on admission contributed the most to the ability of the model to predict increased support utilisation (OR = 0.825 (95% CI = 0.698-0.977), P = 0.025), followed by burn size (OR = 1.252 (95% CI = 1.025-1.530), P = 0.027), burn depth (partial thickness was used as the reference, full thickness OR = 80.499 (1.569-4129.248), P = 0.029), and neutrophil count on admission (OR = 1.532 (95% CI = 0.950-2.473), P = 0.08). Together, these four variables predicted increased support utilisation with 93.2% accuracy, 83.3% sensitivity and 97.6% specificity. However if protein C values were disregarded, only 49.5% of the variance was explained, with 82% accuracy, 63% sensitivity and 91.5% specificity. Thus, protein C may be a useful biomarker of burn severity and study replication will enable validation of these novel findings.
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Affiliation(s)
- Thomas Charles Lang
- Sutton Laboratories Level 10, The Kolling Institute, The University of Sydney, Northern Clinical School, Royal North Shore Hospital, Reserve Rd, St. Leonards, 2065, NSW, Australia; Department of Anaesthesia, Prince of Wales and Sydney Children's Hospitals, Barker St, Randwick, 2031, NSW, Australia.
| | - Ruilong Zhao
- Sutton Laboratories Level 10, The Kolling Institute, The University of Sydney, Northern Clinical School, Royal North Shore Hospital, Reserve Rd, St. Leonards, 2065, NSW, Australia
| | - Albert Kim
- Royal North Shore Hospital, Reserve Rd St., Leonards, 2065, NSW, Australia
| | - Aruna Wijewardena
- Royal North Shore Hospital, Reserve Rd St., Leonards, 2065, NSW, Australia
| | - John Vandervord
- Royal North Shore Hospital, Reserve Rd St., Leonards, 2065, NSW, Australia
| | - Rachel McGrath
- Royal North Shore Hospital, Reserve Rd St., Leonards, 2065, NSW, Australia
| | | | - Gregory Fulcher
- Royal North Shore Hospital, Reserve Rd St., Leonards, 2065, NSW, Australia
| | - Christopher John Jackson
- Sutton Laboratories Level 10, The Kolling Institute, The University of Sydney, Northern Clinical School, Royal North Shore Hospital, Reserve Rd, St. Leonards, 2065, NSW, Australia
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16
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Fluid Resuscitation in Burns: 2 cc, 3 cc, or 4 cc? CURRENT TRAUMA REPORTS 2019. [DOI: 10.1007/s40719-019-00166-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Vigiola Cruz M, Carney BC, Luker JN, Monger KW, Vazquez JS, Moffatt LT, Johnson LS, Shupp JW. Plasma Ameliorates Endothelial Dysfunction in Burn Injury. J Surg Res 2018; 233:459-466. [PMID: 30502286 DOI: 10.1016/j.jss.2018.08.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/28/2018] [Accepted: 08/06/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND A complex inflammatory response mediates the systemic effects of burn shock. Disruption of the endothelial glycocalyx causes shedding of structural glycoproteins, primarily syndecan-1 (SDC-1), leading to endothelial dysfunction. These effects may be mitigated by resuscitative interventions. MATERIALS AND METHODS Sprague-Dawley rats were used to create small, medium, and large burns and uninjured controls. Three different intravenous resuscitation protocols were applied within each group: Lactated Ringer's (LR) alone, LR plus fresh frozen plasma (FFP), or LR plus albumin. Blood was serially collected, and plasma SDC-1 was quantified with enzyme-linked immunosorbent assay. In one cohort, Evan's Blue Dye (EBD) was administered and quantified in lung by spectrophotometry as a functional assay of vascular permeability. In a second cohort, intact SCD-1 was quantified by immunohistochemistry in lung tissue. Statistical analysis employed two-way analysis of variance with multiple comparisons and Student's t-test. RESULTS EBD extraction from lung was significantly greater with higher injury severity versus controls. Extraction decreased significantly in large-burn animals with addition of FFP to LR versus LR-only; addition of albumin to LR did not decrease EBD extraction. Plasma SCD-1 increased in injured animals compared with controls, and changes correlated with injury severity in all resuscitation groups (significance, P < 0.05). Lung SCD-1 staining reflected the results in the EBD assay. CONCLUSIONS Addition of FFP, not of albumin, to post-burn resuscitation diminishes vascular leakage associated with large burns. Addition of colloid does not affect SDC-1 shedding as measured in plasma. Ongoing work will further define pathophysiologic mechanisms and potential therapeutic interventions to mitigate injury and promote repair of the endothelial glycocalyx.
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Affiliation(s)
- Mariana Vigiola Cruz
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC; The Burn Center, Department of Surgery, MedStar Washington Hospital Center, Washington, DC; Department of Surgery, MedStar Georgetown University Hospital, Washington, DC
| | - Bonnie C Carney
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC
| | - Jenna N Luker
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC
| | - Kyle W Monger
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC
| | - Juan Sebastian Vazquez
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC; The Burn Center, Department of Surgery, MedStar Washington Hospital Center, Washington, DC
| | - Lauren T Moffatt
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC; The Burn Center, Department of Surgery, MedStar Washington Hospital Center, Washington, DC
| | - Laura S Johnson
- The Burn Center, Department of Surgery, MedStar Washington Hospital Center, Washington, DC
| | - Jeffrey W Shupp
- Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC; The Burn Center, Department of Surgery, MedStar Washington Hospital Center, Washington, DC.
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18
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Yeong EK, O'Boyle CP, Huang HF, Tai HC, Hsu YC, Chuang SY, Wu YF, Chang CW, Liu TJ, Lai HS. Response of a local hospital to a burn disaster: Contributory factors leading to zero mortality outcomes. Burns 2018; 44:1083-1090. [PMID: 29753454 DOI: 10.1016/j.burns.2018.03.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 03/13/2018] [Accepted: 03/21/2018] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate the outcomes of a local healthcare system in managing a burn mass casualty incident (BMCI). METHODS Thirty-three victims admitted to the National Taiwan University Hospital within 96h of the explosion were included in the study. Data were recorded on: patient demographics, Baux score, laboratory data, management response, treatment strategies, and outcomes. Case notes from June 27, 2015 to November 2015 were reviewed with a focus on fluid resuscitation, ventilation support, nutrition, infection control, sepsis treatment, and wound closure plan. RESULTS Female predominance (mean age: 21.7 years) and lower extremity circumferential flame burns were the characteristics of the burn injury. The mean Baux score was 70±18. The mean burn area was 42% of the total body surface area (TBSA). A total of 79% patients arrived at the hospital within 24h of sustaining injuries. Intensive care unit (ICU) admission criteria were modified to accommodate patients with 40% TBSA of burns, facilities were expanded from 4 ICU beds to 18 beds, and new staff was recruited. A total of 36% patients (n=12/33, 62±13 TBSA of burns) required fluid resuscitation. The mean volume of Lactate Ringer administered in the first 24h of burns was 3.34±2.18ml/kg/%TBSA, while the mean volume of fresh frozen plasma administered was 0.60±0.63ml/kg/h. Forty-two percent patients were intubated on the day of admission, and 71% of the intubated patients had inhalation injuries that were confirmed by diagnostic bronchoscopy. The mean intubation period was 17±9 days. The incidence of pulmonary edema was 58% (n=7/12), possibly due to sub-optimal monitoring. Of these, 57% (n=4/7) patients progressed to adult respiratory distress syndrome, but were successfully treated with early strict fluid restriction, systemic antibiotics, ventilation support, and bronchial lavage. A total of 94% patients received grafting. The mean grafted area was 4432.3±3891cm2. Tube feeding was provided to patients with burns >40% TBSA. All patients tolerated gastric tube feeding without conversion to duodenal switch. On admission, all patients received prophylactic antibiotics. Septic shock was noted in 12 patients, but no mortality occurred. The mean hospital stay was 1.5 days per percent burn. CONCLUSIONS This article highlights the value of precise triage, traffic control, and effective resource allocation in treating a BMCI. Effective supporting systems for facility expansion, staff recruitment, medical supplies and clear-cut treatment strategies for severely burned patients are contributory factors leading to zero mortalities in our series, in addition to young age and minimal inhalation injuries. The need for reevaluation of the safety of cornstarch powder in festival activities is clear.
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Affiliation(s)
- Eng-Kean Yeong
- Department of Surgery, National Taiwan University Hospital, No. 7, Chung Shan South Road, Taipei, Taiwan; Department of Surgery, National Taiwan University Hospital, Yunlin Branch No. 95, Xuefu Rd, Huwei Township, Yunlin County, 632, Taiwan
| | - Ciaran P O'Boyle
- Department of Burns & Plastic Surgery, Nottingham University Hospitals NHS Trust, UK and School of Medicine, The University of Nottingham, Nottingham, Hucknall Rd, Nottingham NG5 1PB, UK
| | - Hui-Fu Huang
- Department of Surgery, National Taiwan University Hospital, No. 7, Chung Shan South Road, Taipei, Taiwan
| | - Hao-Chih Tai
- Department of Surgery, National Taiwan University Hospital, No. 7, Chung Shan South Road, Taipei, Taiwan
| | - Yen-Chun Hsu
- Department of Anesthesiology, National Taiwan University Hospital, No. 7, Chung Shan South Road, Taipei, Taiwan
| | - Shu-Yang Chuang
- Department of Surgery, National Taiwan University Hospital, No. 7, Chung Shan South Road, Taipei, Taiwan
| | - Yu-Feng Wu
- Department of Surgery, National Taiwan University Hospital, No. 7, Chung Shan South Road, Taipei, Taiwan
| | - Che-Wei Chang
- Department of Surgery, National Taiwan University Hospital, No. 7, Chung Shan South Road, Taipei, Taiwan
| | - Tom J Liu
- Department of Surgery, National Taiwan University Hospital, No. 7, Chung Shan South Road, Taipei, Taiwan
| | - Hong-Shiee Lai
- Department of Surgery, National Taiwan University Hospital, No. 7, Chung Shan South Road, Taipei, Taiwan.
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19
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Gómez BI, McIntyre MK, Gurney JM, Chung KK, Cancio LC, Dubick MA, Burmeister DM. Enteral resuscitation with oral rehydration solution to reduce acute kidney injury in burn victims: Evidence from a porcine model. PLoS One 2018; 13:e0195615. [PMID: 29718928 PMCID: PMC5931460 DOI: 10.1371/journal.pone.0195615] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 03/26/2018] [Indexed: 01/07/2023] Open
Abstract
Intravenous (IV) resuscitation of burn patients has greatly improved outcomes and become a cornerstone of modern burn care. However, the heavy fluids and vascular access required may not be feasible in austere environments, mass casualty, or delayed transport scenarios. Enteral resuscitation has been proposed for these situations; we sought to examine the effectiveness of this strategy on improving burn-induced kidney injury. Anesthetized Yorkshire swine sustaining 40% TBSA full-thickness contact burns were randomized to three groups (n = 6/group): fluid deprivation, ad libitum water access, or 70 mL/kg/d Oral Rehydration Salt solution (ORS). Urine and blood were collected at baseline (BL), 6, 12, 24, 32, and 48h post-burn, at which point tissue was harvested and CT angiography performed. Although fluid consumption by ad libitum and ORS groups were matched (132±54mL/kg versus 120±24mL/kg, respectively), ORS intake increased urine output compared with water and no water (47.3±9.0 mL/kg versus 16.1±2.5 mL/kg, and 24.5±1.7 mL/kg respectively). Plasma creatinine peaked 6h following burn (1.67±0.07mg/dL) in all animals, but at 48h was comparable to BL in animals receiving water (1.23±0.06mg/dL) and ORS (1.30±0.09mg/dL), but not fluid deprived animals (1.56±0.05mg/dL) (P<0.05). Circulating levels of blood urea nitrogen steadily increased, but also decreased by 48h in animals receiving enteral fluids (P<0.05). Water deprivation reduced renal artery diameter (-1.4±0.17mm), whereas resuscitation with water (-0.44±0.14 mm) or ORS maintained it (-0.63±0.20 mm;P< 0.02). Circulating cytokines IL-1β, IL-6, IFNγ, and GM-CSF were moderately elevated in the fluid-deprived group. Taken together, the data suggest that enteral resuscitation with ORS rescues kidney function following burn injury. Incorporating enteral fluids may improve outcomes in resource-poor environments and possibly reduce IV fluid requirements to prevent co-morbidities associated with over-resuscitation. Studies into different volumes/types of enteral fluids are warranted. While ORS has saved many lives in cholera-associated dehydration, it should be investigated further for use in burn patients.
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Affiliation(s)
- Belinda I. Gómez
- United States Army Institute of Surgical Research, Fort Sam Houston, TX, United States of America
| | - Matthew K. McIntyre
- United States Army Institute of Surgical Research, Fort Sam Houston, TX, United States of America
| | - Jennifer M. Gurney
- United States Army Institute of Surgical Research, Fort Sam Houston, TX, United States of America
- Brooke Army Medical Center, Fort Sam Houston, TX, United States of America
| | - Kevin K. Chung
- Brooke Army Medical Center, Fort Sam Houston, TX, United States of America
- Uniformed Services University of the Health Sciences, Bethesda, MD, United States of America
| | - Leopoldo C. Cancio
- United States Army Institute of Surgical Research, Fort Sam Houston, TX, United States of America
- Brooke Army Medical Center, Fort Sam Houston, TX, United States of America
| | - Michael A. Dubick
- United States Army Institute of Surgical Research, Fort Sam Houston, TX, United States of America
| | - David M. Burmeister
- United States Army Institute of Surgical Research, Fort Sam Houston, TX, United States of America
- * E-mail:
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20
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Kao Y, Loh E, Hsu C, Lin H, Huang C, Chou Y, Lien C, Tam K. Fluid Resuscitation in Patients With Severe Burns: A Meta-analysis of Randomized Controlled Trials. Acad Emerg Med 2018; 25:320-329. [PMID: 29024269 DOI: 10.1111/acem.13333] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/31/2017] [Accepted: 10/01/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVES Fluid resuscitation is the mainstay treatment to reconstitute intravascular volume and maintain end-organ perfusion in patients with severe burns. The use of a hyperosmotic or isoosmotic solution in fluid resuscitation to manage myocardial depression and increased capillary permeability during burn shock has been debated. We conducted a systematic review and meta-analysis to compare the efficacies of hyperosmotic and isoosmotic solutions in restoring hemodynamic stability after burn injuries. METHODS PubMed, Embase, Cochrane Library, Scopus, and ClinicalTrials.gov registry were searched. Randomized control trials evaluating the efficacy and safety of hyperosmotic and isoosmotic fluid resuscitation in patients with burn injuries were selected. Eligible trials were abstracted and assessed for the risk of bias by two reviewers and results of hemodynamic indicators in the included trials were analyzed. RESULTS Ten trials including 502 participants were published between 1983 and 2013. Compared with isoosmotic group, the hyperosmotic group exhibited a significant decrease in the fluid load (vol/% total body surface area [TBSA]/weight) at 24 hours postinjury, with a mean difference of -0.54 (95% confidence interval = -0.92 to -0.17). No differences were observed in the urine output, creatinine level, and mortality at 24 hours postinjury between groups. CONCLUSIONS Hyperosmotic fluid resuscitation appears to be an attractive choice for severe burns in terms of TBSA or burn depth. Further investigation is recommended before conclusive recommendation.
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Affiliation(s)
- Yuan Kao
- Department of Emergency Chi‐Mei Medical Hospital Tainan Taiwan
- Graduate Institute of Medical Sciences College of Health Science Chang Jung Christian University Tainan Taiwan
| | - El‐Wui Loh
- Center for Evidence‐Based Health Care Taipei Medical University‐Shuang Ho Hospital New Taipei City Taiwan
- Department of Medical Research Taipei Medical University‐Shuang Ho Hospital New Taipei City Taiwan
| | - Chien‐Chin Hsu
- Department of Emergency Chi‐Mei Medical Hospital Tainan Taiwan
- Department of Biotechnology Southern Taiwan University of Science and Technology Tainan Taiwan
| | - Hung‐Jung Lin
- Department of Emergency Chi‐Mei Medical Hospital Tainan Taiwan
- Department of Biotechnology Southern Taiwan University of Science and Technology Tainan Taiwan
- Department of Emergency Medicine Taipei Medical University Taipei Taiwan
| | - Chien‐Cheng Huang
- Department of Emergency Chi‐Mei Medical Hospital Tainan Taiwan
- Department of Occupational Medicine Chi‐Mei Medical Hospital Tainan Taiwan
- Department of Geriatrics and Gerontology Chi‐Mei Medical Hospital Tainan Taiwan
- Department of Child Care and Education Southern Taiwan University of Science and Technology Tainan Taiwan
- Department of Environmental and Occupational Health College of Medicine National Cheng Kung University Tainan Taiwan
| | - Yun‐Yun Chou
- Shared Decision Making Resource Center Taipei Medical University‐Shuang Ho Hospital New Taipei City Taiwan
| | - Chieh‐Chun Lien
- Department of Emergency Chi‐Mei Medical Hospital Tainan Taiwan
| | - Ka‐Wai Tam
- Center for Evidence‐Based Health Care Taipei Medical University‐Shuang Ho Hospital New Taipei City Taiwan
- Department of Medical Research Taipei Medical University‐Shuang Ho Hospital New Taipei City Taiwan
- Shared Decision Making Resource Center Taipei Medical University‐Shuang Ho Hospital New Taipei City Taiwan
- Division of General Surgery Department of Surgery Taipei Medical University‐Shuang Ho Hospital New Taipei City Taiwan
- Department of Surgery School of Medicine College of Medicine Taipei Medical University Taipei Taiwan
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21
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Hu S, Dai YL, Gao MJ, Wang XN, Wang HB, Dou YQ, Bai XD, Zhou FQ. Pyruvate as a novel carrier of hydroxyethyl starch 130/0.4 may protect kidney in rats subjected to severe burns. J Surg Res 2018; 225:166-174. [PMID: 29605028 DOI: 10.1016/j.jss.2018.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 10/09/2017] [Accepted: 01/03/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND The carrier of hydroxyethyl starch (HES) may play a critical role in kidney injury in fluid resuscitation. This study aimed mainly to compare effects of pyruvate-enriched saline with normal saline (NS) and acetate Ringer's (AR) solution as a carrier in HES130/0.4 on kidney function in rats subjected to severe burns. METHODS Using a lethal burn model, 140 rats were randomly allocated in seven groups (n = 20): sham group (group S); no fluid after burn (group N); burn resuscitated with NS (group NS); burn resuscitated with pyruvate saline (group PS); burn resuscitated with AR plus pyruvate-HES (group SP); burn resuscitated with AR plus acetate-HES (group SA), and burn resuscitated with AR plus NS-HES (group SN). A low volume (18.75 mL·kg-1 during 12 h) of HES130/0.4 was infused with the ratio of 1:1 to crystalloids. Renal surface blood flow, blood creatinine and blood urea nitrogen, early sensitive indicators of kidney function: alpha-1 microglobulin, cystatin-C, and neutrophil gelatinase-associated lipocalin in blood and urine, and kidney tissue water contents were determined. Renal histopathological alterations with Paller scores were also measured at 8 h and 24 h after burn (n = 10), respectively. RESULTS The results showed in a comparable manner that group SP was the best in three HES groups and group PS was superior to group NS in renal preservation; group SP appeared significantly beneficial compared with group PS in renal surface blood flow, cystatin-C, neutrophil gelatinase-associated lipocalin, water contents, and Paller scores at 8-h or both time points after burn, respectively (all P < 0.05). CONCLUSIONS The carrier of HES130/0.4 played a crucial role in kidney injury in fluid resuscitation of rats subjected to severe burns. Pyruvate-enriched HES130/0.4 was superior and HES130/0.4, per se, might be not renocytotoxic, but renoprotective. Further studies are warranted.
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Affiliation(s)
- Sen Hu
- Laboratory for Shock and Multiple Organ Dysfunction of Burns Institute, Key Research Laboratory of Tissue Repair and Regeneration of PLA, and Beijing Key Research Laboratory of Skin Injury and Repair Regeneration, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, China
| | - Yue-Long Dai
- Chinese People's Armed Police Forces Academy, Langfang, Hebei, China
| | - Ming-Juan Gao
- Department of Burn and Plastic Surgery, The General Hospital of Chinese People's Armed Police Forces, Beijing, China
| | - Xiao-Na Wang
- Department of Burn and Plastic Surgery, The General Hospital of Chinese People's Armed Police Forces, Beijing, China
| | - Hai-Bin Wang
- Clinical Laboratory, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, China
| | - Yong-Qi Dou
- Department of TCM, Chinese PLA General Hospital, Beijing, China
| | - Xiao-Dong Bai
- Department of Burn and Plastic Surgery, The General Hospital of Chinese People's Armed Police Forces, Beijing, China.
| | - Fang-Qiang Zhou
- Shanghai Sandai Pharmaceutical R&D Co., Ltd., Pudong, Shanghai, China; Newton, Massachusetts.
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22
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Improvement of Blood-Brain Barrier Integrity in Traumatic Brain Injury and Hemorrhagic Shock Following Treatment With Valproic Acid and Fresh Frozen Plasma. Crit Care Med 2017; 46:e59-e66. [PMID: 29095204 DOI: 10.1097/ccm.0000000000002800] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Combined traumatic brain injury and hemorrhagic shock are highly lethal. Following injuries, the integrity of the blood-brain barrier can be impaired, contributing to secondary brain insults. The status of the blood-brain barrier represents a potential factor impacting long-term neurologic outcomes in combined injuries. Treatment strategies involving plasma-based resuscitation and valproic acid therapy have shown efficacy in this setting. We hypothesize that a component of this beneficial effect is related to blood-brain barrier preservation. DESIGN Following controlled traumatic brain injury, hemorrhagic shock, various resuscitation and treatment strategies were evaluated for their association with blood-brain barrier integrity. Analysis of gene expression profiles was performed using Porcine Gene ST 1.1 microarray. Pathway analysis was completed using network analysis tools (Gene Ontology, Ingenuity Pathway Analysis, and Parametric Gene Set Enrichment Analysis). SUBJECTS Female Yorkshire swine were subjected to controlled traumatic brain injury and 2 hours of hemorrhagic shock (40% blood volume, mean arterial pressure 30-35 mmHg). INTERVENTIONS Subjects were resuscitated with 1) normal saline, 2) fresh frozen plasma, 3) hetastarch, 4) fresh frozen plasma + valproic acid, or 5) hetastarch + valproic acid (n = 5 per group). After 6 hours of observation, brains were harvested for evaluation. MEASUREMENTS AND MAIN RESULTS Immunofluoroscopic evaluation of the traumatic brain injury site revealed significantly increased expression of tight-junction associated proteins (zona occludin-1, claudin-5) following combination therapy (fresh frozen plasma + valproic acid and hetastarch + valproic acid). The extracellular matrix protein laminin was found to have significantly improved expression with combination therapies. Pathway analysis indicated that valproic acid significantly modulated pathways involved in endothelial barrier function and cell signaling. CONCLUSIONS Resuscitation with fresh frozen plasma results in improved expression of proteins essential for blood-brain barrier integrity. The addition of valproic acid provides significant improvement to these protein expression profiles. This is likely secondary to activation of key pathways related to endothelial functions.
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Clark A, Neyra JA, Madni T, Imran J, Phelan H, Arnoldo B, Wolf SE. Acute kidney injury after burn. Burns 2017; 43:898-908. [DOI: 10.1016/j.burns.2017.01.023] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/13/2016] [Accepted: 01/16/2017] [Indexed: 01/04/2023]
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24
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Georgoff PE, Nikolian VC, Halaweish I, Chtraklin K, Bruhn PJ, Eidy H, Rasmussen M, Li Y, Srinivasan A, Alam HB. Resuscitation with Lyophilized Plasma Is Safe and Improves Neurological Recovery in a Long-Term Survival Model of Swine Subjected to Traumatic Brain Injury, Hemorrhagic Shock, and Polytrauma. J Neurotrauma 2017; 34:2167-2175. [PMID: 28228060 DOI: 10.1089/neu.2016.4859] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
We have shown previously that fresh frozen plasma (FFP) and lyophilized plasma (LP) decrease brain lesion size and improve neurological recovery in a swine model of traumatic brain injury (TBI) and hemorrhagic shock (HS). In this study, we examine whether these findings can be validated in a clinically relevant model of severe TBI, HS, and polytrauma. Female Yorkshire swine were subjected to TBI (controlled cortical impact), hemorrhage (40% volume), grade III liver and splenic injuries, rib fracture, and rectus abdominis crush. The animals were maintained in a state of shock (mean arterial pressure 30-35 mm Hg) for 2 h, and then randomized to resuscitation with normal saline (NS), FFP, or LP (n = 5 swine/group). Animals were recovered and monitored for 30 d, during which time neurological recovery was assessed. Brain lesion sizes were measured via magnetic resonance imaging (MRI) on post-injury days (PID) three and 10. Animals were euthanized on PID 30. The severity of shock and response to resuscitation was similar in all groups. When compared with NS-treated animals, plasma-treated animals (FFP and LP) had significantly lower neurologic severity scores (PID 1-7) and a faster return to baseline neurological function. There was no significant difference in brain lesion sizes between groups. LP treatment was well tolerated and similar to FFP. In this clinically relevant large animal model of severe TBI, HS, and polytrauma, we have shown that plasma-based resuscitation strategies are safe and result in neurocognitive recovery that is faster than recovery after NS-based resuscitation.
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Affiliation(s)
- Patrick E Georgoff
- 1 Department of Surgery, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
| | - Vahagn C Nikolian
- 1 Department of Surgery, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
| | - Ihab Halaweish
- 1 Department of Surgery, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
| | - Kiril Chtraklin
- 1 Department of Surgery, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
| | - Peter J Bruhn
- 1 Department of Surgery, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
| | - Hassan Eidy
- 1 Department of Surgery, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
| | - Monica Rasmussen
- 1 Department of Surgery, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
| | - Yongqing Li
- 1 Department of Surgery, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
| | - Ashok Srinivasan
- 2 Department of Radiology, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
| | - Hasan B Alam
- 1 Department of Surgery, Section of Neuroradiology, University of Michigan , Ann Arbor, Michigan
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