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Lin CY, Hamm JD, Fisher AD, Rizzo JA, Corley JB, April MD, Schauer SG. Frequency of deployed emergency donor panel use prior to implementation of the low titre group O whole blood program. BMJ Mil Health 2024:e002641. [PMID: 38754974 DOI: 10.1136/military-2023-002641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 03/30/2024] [Indexed: 05/18/2024]
Abstract
INTRODUCTION The US military has frequently used a 'walking blood bank', formally known as an 'emergency donor panel' (EDP) to obtain warm fresh whole blood (WFWB) which is then immediately transfused into the casualty. We describe the frequency of EDP activation by the US military. METHODS We analysed data from 2007 to 2015 within the Department of Defense Trauma Registry for US, Coalition and US contractor casualties that received at least 1 unit of blood product within the first 24 hours and described the frequency of WFWB use. RESULTS There were 3474 casualties that met inclusion, of which, 290 casualties (8%) required activation of the EDP. The highest proportion of EDP events was in 2014, whereas the highest number of EDP events was in 2011. Median injury severity scores were higher in the recipients, compared with non-EDP recipients (29 vs 20), as were proportions with serious injuries to the abdomen (43% vs 19%) and extremities (77% vs 65%). The median number of units of all blood products, except for packed red blood cells, was higher for WFWB recipients. Of the WFWB recipients, the median was 5 units (IQR 2-10) with a maximum documented 144 units. There were four documented cases of EDP recipients receiving >100 units of WFWB with only one surviving to hospital discharge. During the study period, there were a total of 3102 (3%) units of WFWB transfused among a total of 104 288 total units. CONCLUSIONS We found nearly 1 in 11 casualties who received blood required activation of the EDP. Blood from the EDP accounted for 3% of all units transfused. These findings will enable future mission planning and medical training, especially for units with smaller, limited blood supplies. The lessons learned here can also enable mass casualty planning in civilian settings.
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Affiliation(s)
| | - J D Hamm
- Uniformed Services University, Bethesda, Maryland, USA
| | - A D Fisher
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - J A Rizzo
- Uniformed Services University, Bethesda, Maryland, USA
- Brooke Army Medical Center, Fort Sam Houston, Texas, USA
| | - J B Corley
- Medical Capability Development Integration Directorate, Fort Sam Houston, Texas, USA
| | - M D April
- Uniformed Services University, Bethesda, Maryland, USA
| | - S G Schauer
- Uniformed Services University, Bethesda, Maryland, USA
- Center for Combat and Battlefield (COMBAT) Research, University of Colorado School of Medicine, Aurora, Colorado, USA
- Departments of Anesthesiology and Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
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Cartotto R, Johnson LS, Savetamal A, Greenhalgh D, Kubasiak JC, Pham TN, Rizzo JA, Sen S, Main E. American Burn Association Clinical Practice Guidelines on Burn Shock Resuscitation. J Burn Care Res 2024; 45:565-589. [PMID: 38051821 DOI: 10.1093/jbcr/irad125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
This Clinical Practice Guideline (CPG) addresses the topic of acute fluid resuscitation during the first 48 hours following a burn injury for adults with burns ≥20% of the total body surface area (%TBSA). The listed authors formed an investigation panel and developed clinically relevant PICO (Population, Intervention, Comparator, Outcome) questions. A systematic literature search returned 5978 titles related to this topic and after 3 levels of screening, 24 studies met criteria to address the PICO questions and were critically reviewed. We recommend that clinicians consider the use of human albumin solution, especially in patients with larger burns, to lower resuscitation volumes and improve urine output. We recommend initiating resuscitation based on providing 2 mL/kg/% TBSA burn in order to reduce resuscitation fluid volumes. We recommend selective monitoring of intra-abdominal and intraocular pressure during burn shock resuscitation. We make a weak recommendation for clinicians to consider the use of computer decision support software to guide fluid titration and lower resuscitation fluid volumes. We do not recommend the use of transpulmonary thermodilution-derived variables to guide burn shock resuscitation. We are unable to make any recommendations on the use of high-dose vitamin C (ascorbic acid), fresh frozen plasma (FFP), early continuous renal replacement therapy, or vasopressors as adjuncts during acute burn shock resuscitation. Mortality is an important outcome in burn shock resuscitation, but it was not formally included as a PICO outcome because the available scientific literature is missing studies of sufficient population size and quality to allow us to confidently make recommendations related to the outcome of survival at this time.
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Affiliation(s)
- Robert Cartotto
- Department of Surgery, Ross Tilley Burn Centre, Sunnybrook Heath Sciences Centre, University of Toronto, Canada
| | - Laura S Johnson
- Department of Surgery, Walter L. Ingram Burn Center, Grady Memorial Hospital, Emory University, Atlanta, GAUSA
| | - Alisa Savetamal
- Department of Surgery, Connecticut Burn Center, Bridgeport Hospital, Bridgeport, CT, USA
| | - David Greenhalgh
- Shriners Hospital for Children, Northern California, Sacramento, CA, USA
| | - John C Kubasiak
- Department of Surgery, Loyola University Medical Center, Maywood, IL, USA
| | - Tam N Pham
- Department of Surgery, University of Washington Regional Burn Center, Harborview Medical Center, Seattle, WA, USA
| | - Julie A Rizzo
- Department of Trauma, Brooke Army Medical Center, Fort Sam Houston, San Antonio, TX, USA
- Uniformed Services University of Health Sciences, Bethesda, MD, USA
| | - Soman Sen
- Department of Surgery, Division of Burn Surgery, University of California, Davis, CA, USA
| | - Emilia Main
- Sunnybrook Health Sciences Centre, Toronto, Canada
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April MD, Fisher AD, Rizzo JA, Wright FL, Winkle JM, Schauer SG. Early Vital Sign Thresholds Associated with 24-Hour Mortality among Trauma Patients: A Trauma Quality Improvement Program (TQIP) Study - CORRIGENDUM. Prehosp Disaster Med 2024:1. [PMID: 38698742 DOI: 10.1017/s1049023x24000384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
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Taheri BD, Fisher AD, Eisenhauer IF, April MD, Rizzo JA, Guliani SS, Flarity KM, Cripps M, Bebarta VS, Wohlauer MV, Schauer SG. The employment of resuscitative endovascular balloon occlusion of the aorta in deployed settings. Transfusion 2024; 64 Suppl 2:S19-S26. [PMID: 38581267 DOI: 10.1111/trf.17823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/17/2024] [Accepted: 03/25/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND Resuscitative endovascular balloon occlusion of the aorta (REBOA) has been often used in place of open aortic occlusion for management of hemorrhagic shock in trauma. There is a paucity of data evaluating REBOA usage in military settings. STUDY DESIGN AND METHODS We queried the Department of Defense Trauma Registry (DODTR) for all cases with at least one intervention or assessment available within the first 72 h after injury between 2007 and 2023. We used relevant procedural codes to identify the use of REBOA within the DODTR, and we used descriptive statistics to characterize its use. RESULTS We identified 17 cases of REBOA placed in combat settings from 2017 to 2019. The majority of these were placed in the operating room (76%) and in civilian patients (70%). A penetrating mechanism caused the injury in 94% of cases with predominantly the abdomen and extremities having serious injuries. All patients subsequently underwent an exploratory laparotomy after REBOA placement, with moderate numbers of patients having spleen, liver, and small bowel injuries. The majority (82%) of included patients survived to hospital discharge. DISCUSSION We describe 17 cases of REBOA within the DODTR from 2007 to 2023, adding to the limited documentation of patients undergoing REBOA in military settings. We identified patterns of injury in line with previous studies of patients undergoing REBOA in military settings. In this small sample of military casualties, we observed a high survival rate.
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Affiliation(s)
- Branson D Taheri
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado, USA
- Air Education and Training Command, Air Force Institute of Technology, Wright-Patterson Air Force Base, Dayton, Ohio, USA
- University of Colorado Center for Combat Medicine and Battlefield (COMBAT) Research, Aurora, Colorado, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Andrew D Fisher
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
- Texas Army National Guard, Austin, Texas, USA
| | - Ian F Eisenhauer
- University of Colorado Center for Combat Medicine and Battlefield (COMBAT) Research, Aurora, Colorado, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
- Department of Emergency Medicine, Denver Health, Denver, Colorado, USA
- Navy Medicine Leader and Professional Development Command, Bethesda, Maryland, USA
| | - Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
- 14th Field Hospital, Fort Stewart, Georgia, USA
| | - Julie A Rizzo
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
- Brooke Army Medical Center, JBSA, Fort Sam Houston, Texas, USA
| | - Sundeep S Guliani
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Kathleen M Flarity
- University of Colorado Center for Combat Medicine and Battlefield (COMBAT) Research, Aurora, Colorado, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Michael Cripps
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Vikhyat S Bebarta
- University of Colorado Center for Combat Medicine and Battlefield (COMBAT) Research, Aurora, Colorado, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Max V Wohlauer
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Steven G Schauer
- University of Colorado Center for Combat Medicine and Battlefield (COMBAT) Research, Aurora, Colorado, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA
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Schauer SG, April MD, Fisher AD, Wright FL, Winkle JM, Wright AR, Rizzo JA, Getz TM, Nicholson SE, Yazer MH, Braverman MA. A survey of low titer O whole blood use within the trauma quality improvement program registry. Transfusion 2024; 64 Suppl 2:S85-S92. [PMID: 38351716 DOI: 10.1111/trf.17746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 01/27/2024] [Indexed: 05/12/2024]
Abstract
INTRODUCTION The use of low titer O whole blood (LTOWB) has expanded although it remains unclear how many civilian trauma centers are using LTOWB. METHODS We analyzed data on civilian LTOWB recipients in the American College of Surgeons Trauma Quality Improvement Program (TQIP) database 2020-2021. Unique facility keys were used to determine the number of centers that used LTOWB in that period. RESULTS A total of 16,603 patients received LTOWB in the TQIP database between 2020 and 2021; 6600 in 2020, and 10,003 in 2021. The total number of facilities that reported LTOWB use went from 287/779 (37%) in 2020 to 302/795 (38%) in 2021. Between 2020 and 2021, among all level 1-3 designated trauma facilities that report to TQIP LTOWB use increased at level-1 centers (118 to 129), and level-2 centers (81 to 86), but decreased in level-3 facilities (9 to 4). Among pediatric and dual pediatric-adult designated hospitals there was a decrease in the number of pediatric level-1 centers (29 to 28) capable of administering LTOWB. Among centers with either single or dual level-1 trauma center designation with adult centers, the number that administered LTOWB to injured pediatric patients also decreased from 17 to 10, respectively. CONCLUSIONS There was an increase in the number of facilities transfusing LTOWB between 2020 and 2021. The use of LTOWB is underutilized in children at centers that have it available. These findings inform the expansion of LTOWB use in trauma.
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Affiliation(s)
- Steven G Schauer
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
- Center for Combat and Battlefield (COMBAT) Research, University of Colorado School of Medicine, Aurora, Colorado, USA
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
- 14th Field Hospital, Fort Stewart, Georgia, USA
| | - Andrew D Fisher
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
| | - Franklin L Wright
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Julie M Winkle
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Angela R Wright
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Julie A Rizzo
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
- Brooke Army Medical Center, JBSA Fort Sam Houston, Texas, USA
| | - Todd M Getz
- Center for Combat and Battlefield (COMBAT) Research, University of Colorado School of Medicine, Aurora, Colorado, USA
| | | | - Mark H Yazer
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Maxwell A Braverman
- University of Texas Health at San Antonio, San Antonio, Texas, USA
- St. Lukes University Health Network, Bethlehem, PA, USA
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McWhirter KK, April MD, Fisher AD, Wright FL, Rizzo JA, Corley JB, Getz TM, Schauer SG. Blood consumption in the Role 2 setting: A Department of Defense Trauma Registry analysis. Transfusion 2024; 64 Suppl 2:S42-S49. [PMID: 38361432 DOI: 10.1111/trf.17741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/19/2024] [Accepted: 01/19/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND The Role 2 setting represents the most far-forward military treatment facility with limited surgical and holding capabilities. There are limited data to guide recommendations on blood product utilization at the Role 2. We describe the consumption of blood products in this setting. STUDY DESIGN AND METHODS We analyzed data from 2007 to 2023 from the Department of Defense Trauma Registry (DODTR) that received care at a Role 2. We used descriptive and inferential statistics to characterize the volumes of blood products consumed in this setting. We also performed a secondary analysis of US military, Coalition, and US contractor personnel. RESULTS Within our initial cohort analysis of 15,581 encounters, 17% (2636) received at least one unit of PRBCs or whole blood, of which 11% received a submassive transfusion, 4% received a massive transfusion, and 1% received a supermassive transfusion. There were 6402 encounters that met inclusion for our secondary analysis. With this group, 5% received a submassive transfusion, 2% received a massive transfusion, and 1% received a supermassive transfusion. CONCLUSIONS We described volumes of blood products consumed at the Role 2 during recent conflicts. The maximum number of units consumed among survivors exceeds currently recommended available blood supply. Our findings suggest that rapid resupply and cold-stored chain demands may be higher than anticipated in future conflicts.
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Affiliation(s)
- Kelly K McWhirter
- 2nd Stryker Brigade Combat Team, 4th Infantry Division, Fort Carson, Colorado, USA
- Shenandoah University, Winchester, Virginia, USA
| | - Michael D April
- 14th Field Hospital, Fort Stewart, Georgia, USA
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Andrew D Fisher
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
- Texas National Guard, Austin, Texas, USA
| | - Franklin L Wright
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Julie A Rizzo
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
- Brooke Army Medical Center, JBSA Fort Sam Houston, Texas, USA
| | - Jason B Corley
- Medical Capability Development Integration Directorate, JBSA Fort Sam Houston, Texas, USA
| | - Todd M Getz
- Center for Combat and Battlefield (COMBAT) Research, Aurora, Colorado, USA
| | - Steven G Schauer
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
- Center for Combat and Battlefield (COMBAT) Research, Aurora, Colorado, USA
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
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April MD, Fisher AD, Rizzo JA, Wright FL, Winkle JM, Schauer SG. Early Vital Sign Thresholds Associated with 24-Hour Mortality among Trauma Patients: A Trauma Quality Improvement Program (TQIP) Study. Prehosp Disaster Med 2024; 39:151-155. [PMID: 38563282 DOI: 10.1017/s1049023x24000207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
BACKGROUND Identifying patients at imminent risk of death is critical in the management of trauma patients. This study measures the vital sign thresholds associated with death among trauma patients. METHODS This study included data from patients ≥15 years of age in the American College of Surgeons Trauma Quality Improvement Program (TQIP) database. Patients with vital signs of zero were excluded. Documented prehospital and emergency department (ED) vital signs included systolic pressure, heart rate, respiratory rate, and calculated shock index (SI). The area under the receiver operator curves (AUROC) was used to assess the accuracy of these variables for predicting 24-hour survival. Optimal thresholds to predict mortality were identified using Youden's Index, 90% specificity, and 90% sensitivity. Additional analyses examined patients 70+ years of age. RESULTS There were 1,439,221 subjects in the 2019-2020 datasets that met inclusion for this analysis with <0.1% (10,270) who died within 24 hours. The optimal threshold for prehospital systolic pressure was 110, pulse rate was 110, SI was 0.9, and respiratory rate was 15. The optimal threshold for the ED systolic was 112, pulse rate was 107, SI was 0.9, and respiratory rate was 21. Among the elderly sub-analysis, the optimal threshold for prehospital systolic was 116, pulse rate was 100, SI was 0.8, and respiratory rate was 21. The optimal threshold for ED systolic was 121, pulse rate was 95, SI was 0.8, and respiratory rate was 0.8. CONCLUSIONS Systolic blood pressure (SBP) and SI offered the best predictor of mortality among trauma patients. The SBP values predictive of mortality were significantly higher than the traditional 90mmHg threshold. This dataset highlights the need for better methods to guide resuscitation as initial vital signs have limited accuracy in predicting subsequent mortality.
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Affiliation(s)
- Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, MarylandUSA
- 14th Field Hospital, Fort Stewart, GeorgiaUSA
| | - Andrew D Fisher
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, New MexicoUSA
| | - Julie A Rizzo
- Uniformed Services University of the Health Sciences, Bethesda, MarylandUSA
- Brooke Army Medical Center, JBSA Fort Sam Houston, TexasUSA
| | - Franklin L Wright
- University of Colorado School of Medicine, Department of Surgery, Aurora, ColoradoUSA
| | - Julie M Winkle
- University of Colorado School of Medicine, Departments of Anesthesia and Emergency Medicine, Aurora, ColoradoUSA
| | - Steven G Schauer
- Uniformed Services University of the Health Sciences, Bethesda, MarylandUSA
- University of Colorado School of Medicine, Departments of Anesthesia and Emergency Medicine, Aurora, ColoradoUSA
- University of Colorado School of Medicine Center for Combat and Battlefield (COMBAT) Research, Aurora, ColoradoUSA
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Marcus JE, Townsend LC, Rizzo JA, James KA, Markelz AE, Blyth DM. Epidemiology and clinical significance of persistent bacteremia in severely burned patients. Burns 2024; 50:375-380. [PMID: 38042626 DOI: 10.1016/j.burns.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 11/09/2023] [Accepted: 11/17/2023] [Indexed: 12/04/2023]
Abstract
BACKGROUND The utility of follow-up blood cultures (FUBC) for gram-negative bloodstream infections (BSIs) are controversial due to low rates of positivity. However, recent studies suggest higher rates of positivity in critically ill patients. The utility of FUBC in gram-negative BSI in patients with severe burn injuries is unknown. METHODS Patients ≥ 18 years old admitted to the US Army Institute of Surgical Research Burn Center for combat-related thermal burns from 1/2003-6/2014 with a monomicrobial BSI were included. FUBC were defined as repeat cultures 1-5 days from index BSI. Persistent BSI (pBSI) was defined as isolation of the same organism from initial and FUBC. The primary endpoint was all-cause in-hospital mortality in patients with gram-negative pBSI. RESULTS Of 126 patients meeting inclusion criteria with BSI, 53 (42%) had pBSI. Compared to patients without persistence, patients with pBSI had more severe burns with median total body surface area (TBSA) burns of 47% ([IQR 34-63] vs. 35.3% [IQR 23.3-56.6], p = 0.02), increased mortality (38 vs. 11%, p = 0.001) compared to those with non-persistent BSI. On multivariate analysis, pBSI was associated with an odds ratio for mortality of 5.3 [95% CI 1.8-15.8, p = 0.003). Amongst gram-negative pathogens, persistence rates were high and associated with increased mortality (41% vs. 11%, p = 0.001) compared to patients without pBSI. CONCLUSION In this cohort of military patients with combat-related severe burns, pBSI was more common than in other hospitalized populations and associated with increased mortality. Given this high frequency of persistence in patients with burn injuries and associated mortality, FUBC are an important diagnostic and prognostic study in this population.
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Affiliation(s)
- Joseph E Marcus
- Infectious Diseases Service, Department of Medicine, Brooke Army Medical Center, Joint Base San Antonio, TX, USA; Department of Medicine, Uniformed Services University, Bethesda, MD, USA.
| | - Lisa C Townsend
- Infectious Diseases Service, Department of Medicine, Brooke Army Medical Center, Joint Base San Antonio, TX, USA; Department of Medicine, Uniformed Services University, Bethesda, MD, USA
| | - Julie A Rizzo
- Department of Trauma, Brooke Army Medical Center, Joint Base San Antonio, TX, USA; Department of Surgery, Uniformed Services University, Bethesda, MD, USA
| | - K Aden James
- Biostatistics, Brooke Army Medical Center, Joint Base San Antonio, TX, USA
| | - Ana E Markelz
- Infectious Diseases Service, Department of Medicine, Brooke Army Medical Center, Joint Base San Antonio, TX, USA; Department of Medicine, Uniformed Services University, Bethesda, MD, USA
| | - Dana M Blyth
- Department of Medicine, Uniformed Services University, Bethesda, MD, USA; Infectious Diseases Service, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, MD, USA
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Kenney CL, Komarek TA, July LN, Schauer SG, Burnett GM, VanFosson CA, Gurney JM, Rizzo JA, Sams VG. Effectiveness of Mobile Applications for Trauma Care in Combat Casualty Simulations Throughout the Continuum. J Surg Res 2024; 295:148-157. [PMID: 38016268 DOI: 10.1016/j.jss.2023.10.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 09/05/2023] [Accepted: 10/27/2023] [Indexed: 11/30/2023]
Abstract
INTRODUCTION The U.S. Military uses handwritten documentation throughout the continuum of combat casualty care to document from point-of-injury, during transport and at facilities that provide damage control resuscitation and surgery. Proven impractical due to lack of durability and legibility in arduous tactical environments, we hypothesized that mobile applications would increase accuracy and completeness of documentation in combat casualty simulations. METHODS We conducted simulations across this continuum utilizing 10 two-person teams consisting of a Medic and an Emergency or Critical Care Nurse. Participants were randomized to either the paper group or BATDOK and T6 Health Systems mobile application group. Simulations were completed in both the classroom and simulated field environments. All documentation was assessed for speed, completeness, and accuracy. RESULTS Participant demographics averaged 10.8 ± 5.2 y of military service and 3.9 ± 0.6 h of training on both platforms. Classroom testing showed a significant increase in completeness (84.2 ± 8.1% versus 77.2 ± 6.9%; P = 0.02) and accuracy (77.6 ± 8.1% versus 68.9 ± 7.5%; P = 0.01) for mobile applications versus paper with no significant difference in overall time to completion (P = 0.19). Field testing again showed a significant increase in completeness (91.6 ± 5.8 % versus 70.0 ± 14.1%; P < 0.01) and accuracy (87.7 ± 7.6% versus 64.1 ± 14.4%; P < 0.01) with no significant difference in overall time to completion (P = 0.44). CONCLUSIONS In deployed environments, mobile applications have the potential to improve casualty care documentation completeness and accuracy with minimal additional training. These efforts will assist in meeting an urgent operational need to enable our providers.
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Affiliation(s)
- Connor L Kenney
- Department of General Surgery, Brooke Army Medical Center, San Antonio, Texas.
| | - Tesserae A Komarek
- Department of General Surgery, Brooke Army Medical Center, San Antonio, Texas
| | - Lindsey N July
- Department of General Surgery, Brooke Army Medical Center, San Antonio, Texas
| | - Steven G Schauer
- Department of General Surgery, Brooke Army Medical Center, San Antonio, Texas; United States Army Institute of Surgical Research, San Antonio, Texas; Uniformed Services University of Health Sciences, Bethesda, Maryland
| | | | | | - Jennifer M Gurney
- Department of General Surgery, Brooke Army Medical Center, San Antonio, Texas; Joint Trauma System, San Antonio, Texas
| | - Julie A Rizzo
- Department of General Surgery, Brooke Army Medical Center, San Antonio, Texas; Uniformed Services University of Health Sciences, Bethesda, Maryland
| | - Valerie G Sams
- Center for the Sustainment of Trauma and Readiness Skills (C-Stars), Education and Training Divisions, USAF School of Aerospace Medicine, Fairborn, Ohio; Department of Trauma Surgery, University of Cincinnati Medical Center, Cincinnati, Ohio
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Savell SC, Howard JT, VanFosson CA, Medellín KL, Staudt AM, Rizzo JA, Maddry JK, Cancio LC. A Retrospective Cohort Study of Burn Casualties Transported by the US Army Burn Flight Team and US Air Force Critical Care Air Transport Teams. Mil Med 2024; 189:813-819. [PMID: 36165680 DOI: 10.1093/milmed/usac273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 08/10/2022] [Accepted: 09/02/2022] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION The US Army Burn Center, the only burn center in the Department of Defense provides comprehensive burn care. The Burn Flight Team (BFT) provides specialized burn care during transcontinental evacuation. During Operations Iraqi and Enduring Freedom, burn injuries accounted for approximately 5% of all injuries in military personnel. To augment BFT capacity, US Air Force Critical Care Air Transport Teams (CCATTs) mobilized to transport burn patients. The purpose of this study was to describe critically ill, burn injured patients transported to the US Army Burn Center by BFT or CCATT, to compare and contrast characteristics, evacuation procedures, in-flight treatments, patient injuries/illnesses, and outcomes between the two groups. MATERIALS AND METHODS We conducted a retrospective cohort study of CCATT and BFT patients, admitted to the burn ICU between January 1, 2001 and September 30, 2018. Patients with total body surface area burned (TBSA) >30% were evacuated by BFT, while CCATT evacuated patients with ≤ 30% TBSA. RESULTS Ninety-seven patients met inclusion criteria for this study. Of these, 40 (41%) were transported by the BFT and 57 (59%) were transported by CCATTs. Compared with patients transported by CCATTs, patients transferred by the BFT had higher median TBSA and full-thickness burn size, higher prevalence of chest, back and groin burns, and higher prevalence of inhalation injury. BFT patients had increased hospital days (62 vs. 37; P = .08), ICU days (29 vs. 12; P = .003) and ventilator days (14 vs. 6; P < .001). TBSA was the only variable significantly associated with ARDS (aOR = 1.04; 95% CI: 1.01, 1.08; P = 0.04), renal failure (aOR = 1.07; 95% CI: 1.03, 1.11; P = .002), and mortality (aOR = 1.08; 95% CI: 1.03, 1.13; P = .001). CONCLUSIONS Evacuation by the BFT was associated with increased ICU and ventilator days, increased mortality, and a greater risk for developing renal failure. The severity of injury/TBSA likely accounted for most of these differences.
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Affiliation(s)
- Shelia C Savell
- United States Air Force En route Care Research Center/59th MDW/ST, Fort Sam Houston, TX 78234, USA
| | - Jeff T Howard
- United States Air Force En route Care Research Center/59th MDW/ST, Fort Sam Houston, TX 78234, USA
- Oak Ridge Institute of Science and Education, Oakridge, TN 37830, USA
- University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Christopher A VanFosson
- Brooke Army Medical Center/San Antonio Military Medical Center, Fort Sam Houston, TX 78234, USA
| | - Kimberly L Medellín
- United States Air Force En route Care Research Center/59th MDW/ST, Fort Sam Houston, TX 78234, USA
| | | | - Julie A Rizzo
- Brooke Army Medical Center/San Antonio Military Medical Center, Fort Sam Houston, TX 78234, USA
- Uniformed Services University, Bethesda, MD 20814, USA
| | - Joseph K Maddry
- Brooke Army Medical Center/San Antonio Military Medical Center, Fort Sam Houston, TX 78234, USA
- Uniformed Services University, Bethesda, MD 20814, USA
- US Army Institute of Surgical Research, Fort Sam Houston, TX, 78234, USA
| | - Leopoldo C Cancio
- Burn Center, US Army Institute of Surgical Research, Fort Sam Houston, TX 78234, USA
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Vernon TE, April MD, Fisher AD, Rizzo JA, Long BJ, Schauer SG. An Assessment of Clinical Accuracy of Vital Sign-based Triage Tools Among U.S. and Coalition Forces. Mil Med 2024:usad500. [PMID: 38285545 DOI: 10.1093/milmed/usad500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/04/2023] [Accepted: 01/04/2024] [Indexed: 01/31/2024] Open
Abstract
INTRODUCTION Early appropriate allocation of resources for critically injured combat casualties is essential. This is especially important when inundated with an overwhelming number of casualties where limited resources must be efficiently allocated, such as during mass casualty events. There are multiple scoring systems utilized in the prehospital combat setting, including the shock index (SI), modified shock index (MSI), simple triage and rapid treatment (START), revised trauma score (RTS), new trauma score (NTS), Glasgow Coma Scale + age + pressure (GAP), and the mechanism + GAP (MGAP) score. The optimal score for application to the combat trauma population remains unclear. MATERIALS AND METHODS This is a secondary analysis of a previously described dataset from the Department of Defense Trauma Registry from January 1, 2007 through March 17, 2020. We constructed univariable analyses to determine the area under the receiving operator characteristic (AUROC) for the scoring systems of interest. Our primary outcomes were early death (within 24 hours) or early massive transfusion, as defined by ≥3 units. RESULTS There were 12,268 casualties that met inclusion criteria. There were 168 (1%) who died within the first 24 hours and 2082 (17%) that underwent significant transfusion within the first 24 hours. When assessing the predictive capabilities for death within 24 hours, the AUROCs were 0.72 (SI), 0.69 (MSI), 0.89 (START), 0.90 (RTS), 0.83 (NTS), 0.90 (GAP), and 0.91 (MGAP). The AUROCs for massive transfusion were 0.89 (SI), 0.89 (MSI), 0.82 (START), 0.81 (RTS), 0.83 (NTS), 0.85 (MGAP), and 0.86 (GAP). CONCLUSIONS This study retrospectively applied seven triage tools to a database of 12,268 cases from the Department of Defense Trauma Registry to evaluate their performance in predicting early death or massive transfusion in combat. All scoring systems performed well with an AUROC >0.8 for both outcomes. Although the SI and MSI performed best for predicting massive transfusion (both had an AUROC of 0.89), they ranked last for assessment of mortality within 24 hours, with the other tools performing well. START, RTS, NTS, MGAP and GAP reliably identified early death and need for massive transfusion, with MGAP and GAP performing the best overall. These findings highlight the importance of assessing triage tools to best manage resources and ultimately preserve lives of traumatically wounded warfighters. Further studies are needed to explain the surprising performance discrepancy of the SI and MSI in predicting early death and massive transfusion.
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Affiliation(s)
- Tate E Vernon
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
| | - Michael D April
- 14th Field Hospital, Fort Stewart, GA 31314, USA
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Andrew D Fisher
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, NM 87106, USA
| | - Julie A Rizzo
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Brit J Long
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Steven G Schauer
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
- Center for Combat and Battlefield (COMBAT) Research, University of Colorado School of Medicine, Aurora, CO 80045, USA
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Kocik VI, April MD, Rizzo JA, Dengler BA, Schauer SG. A Review of Electrolyte, Mineral, and Vitamin Changes After Traumatic Brain Injury. Mil Med 2024; 189:e101-e109. [PMID: 37192042 DOI: 10.1093/milmed/usad112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/27/2023] [Accepted: 03/24/2023] [Indexed: 05/18/2023] Open
Abstract
INTRODUCTION Despite the prevalence of traumatic brain injury (TBI) in both civilian and military populations, the management guidelines developed by the Joint Trauma System involve minimal recommendations for electrolyte physiology optimization during the acute phase of TBI recovery. This narrative review aims to assess the current state of the science for electrolyte and mineral derangements found after TBI. MATERIALS AND METHODS We used Google Scholar and PubMed to identify literature on electrolyte derangements caused by TBI and supplements that may mitigate secondary injuries after TBI between 1991 and 2022. RESULTS We screened 94 sources, of which 26 met all inclusion criteria. Most were retrospective studies (n = 9), followed by clinical trials (n = 7), observational studies (n = 7), and case reports (n = 2). Of those, 29% covered the use of some type of supplement to support recovery after TBI, 28% covered electrolyte or mineral derangements after TBI, 16% covered the mechanisms of secondary injury after TBI and how they are related to mineral and electrolyte derangements, 14% covered current management of TBI, and 13% covered the potential toxic effects of the supplements during TBI recovery. CONCLUSIONS Knowledge of mechanisms and subsequent derangements of electrolyte, mineral, and vitamin physiology after TBI remains incomplete. Sodium and potassium tended to be the most well-studied derangements after TBI. Overall, data involving human subjects were limited and mostly involved observational studies. The data on vitamin and mineral effects were limited, and targeted research is needed before further recommendations can be made. Data on electrolyte derangements were stronger, but interventional studies are needed to assess causation.
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Affiliation(s)
| | - Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- 40th Forward Resuscitative Surgical Detachment, Fort Carson, CO 80902, USA
| | - Julie A Rizzo
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
| | - Bradley A Dengler
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Steven G Schauer
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX 78234, USA
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Eisenhauer I, April MD, Rizzo JA, Fisher AD, Maddry JK, Bebarta VS, Schauer SG. Seasonal Association With Hypothermia in Combat Trauma. Mil Med 2023:usad451. [PMID: 38015941 DOI: 10.1093/milmed/usad451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/12/2023] [Accepted: 11/08/2023] [Indexed: 11/30/2023] Open
Abstract
INTRODUCTION Hypothermia increases mortality in trauma populations and frequently occurs in military casualties due to the nature of combat environments. The association between hypothermia and the time of year when injured remains unclear. We sought to determine the association between seasonal changes in temperature and hypothermia among combat casualties. MATERIALS AND METHODS This observational study was a secondary analysis of a previously described Department of Defense Trauma Registry dataset which included U.S. military and Coalition casualties who received prehospital care from January 2007 to March 2020 in Afghanistan and Iraq. We tested for associations between hypothermia (<36.2°C) and seasonal ambient temperatures by constructing multivariable logistic regression models. Summer was defined as June through August and winter as December through February. We assumed that the combat operations occurred in the area near the point of first contact with the deployed military treatment facilities. This study was determined to be exempt from Institutional Review Board oversight. RESULTS There were 5,821 that met inclusion for this study. Within the multivariable logistic regression model, we adjusted for injury severity score, mechanism of injury, and imputed transport time, finding that combat casualties were 2.28 (odds ratio, 95% confidence interval 1.93-2.69) times more likely to develop hypothermia in the winter versus summer. When using temperature as a continuous outcome, casualties had a lower emergency department temperature during the winter (parameter estimate -0.133°C, P < 0.001) after adjusting for confounders. In casualties experiencing hypothermia, mortality was higher (4% versus 1%, P < 0.001), and composite median injury severity score values were higher (10 versus 5, P < 0.001). Among hypothermic casualties, serious injuries were significantly more common (all P < 0.001) to the head (15% versus 7%), thorax (15% versus 7%), abdomen (9% versus 6%), extremities (35% versus 22%), and skin (4% versus 2%). CONCLUSIONS We found a seasonal variation in the occurrence of hypothermia in a large cohort of trauma casualties. Despite adjustment for multiple known confounders, our findings substantiate probable ambient temperature variations to trauma-induced hypothermia. Furthermore, our findings, when taken in the context of other studies on the efficacy of current hypothermia prevention and treatment strategies, support the need for better methods to mitigate hypothermia in future cold-weather operations.
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Affiliation(s)
- Ian Eisenhauer
- University of Colorado Center for Combat Medicine and Battlefield (COMBAT) Research, Aurora, CO 80045, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
- Denver Health Residency in Emergency Medicine, Denver, CO 80204, USA
- Navy Medicine Leader and Professional Development Command, Bethesda, MD 20889, USA
| | - Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- 14th Field Hospital, Fort Stewart, GA 31314, USA
| | - Julie A Rizzo
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
| | - Andrew D Fisher
- Department of Surgery, University of New Mexico School of Medicine, Albuquerque, NM 87106, USA
- Texas Army National Guard, Austin, TX, USA
| | - Joseph K Maddry
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, TX 78234, USA
- 59th Medical Wing, JBSA Fort Sam Houston, TX 78258, USA
| | - Vikhyat S Bebarta
- University of Colorado Center for Combat Medicine and Battlefield (COMBAT) Research, Aurora, CO 80045, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
- 59th Medical Wing, JBSA Fort Sam Houston, TX 78258, USA
| | - Steven G Schauer
- University of Colorado Center for Combat Medicine and Battlefield (COMBAT) Research, Aurora, CO 80045, USA
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
- Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, TX 78234, USA
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14
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Kocik VI, Dengler BA, Rizzo JA, Ma Moran M, Willis AM, April MD, Schauer SG. A Narrative Review of Existing and Developing Biomarkers in Acute Traumatic Brain Injury for Potential Military Deployed Use. Mil Med 2023:usad433. [PMID: 37995274 DOI: 10.1093/milmed/usad433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/31/2023] [Indexed: 11/25/2023] Open
Abstract
INTRODUCTION Traumatic brain injury (TBI) is a leading cause of morbidity and mortality in both adult civilian and military populations. Currently, diagnostic and prognostic methods are limited to imaging and clinical findings. Biomarker measurements offer a potential method to assess head injuries and help predict outcomes, which has a potential benefit to the military, particularly in the deployed setting where imaging modalities are limited. We determine how biomarkers such as ubiquitin C-terminal hydrolase-L1 (UCH-L1), glial fibrillary acidic protein (GFAP), S100B, neurofilament light chain (NFL), and tau proteins can offer important information to guide the diagnosis, acute management, and prognosis of TBI, specifically in military personnel. MATERIALS AND METHODS We performed a narrative review of peer-reviewed literature using online databases of Google Scholar and PubMed. We included articles published between 1988 and 2022. RESULTS We screened a total of 73 sources finding a total of 39 original research studies that met inclusion for this review. We found five studies that focused on GFAP, four studies that focused on UCH-L1, eight studies that focused on tau proteins, six studies that focused on NFL, and eight studies that focused on S100B. The remainder of the studies included more than one of the biomarkers of interest. CONCLUSIONS TBI occurs frequently in the military and civilian settings with limited methods to diagnose and prognosticate outcomes. We highlighted several promising biomarkers for these purposes including S100B, UCH-L1, NFL, GFAP, and tau proteins. S100B and UCH-L1 appear to have the strongest data to date, but further research is necessary. The robust data that explain the optimal timing and, more importantly, trending of these biomarker measurements are necessary before widespread application.
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Affiliation(s)
| | - Bradley A Dengler
- Walter Reed National Military Medical Center, Bethesda, MD, USA
- Center for Neuroscience and Regenerative Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Julie A Rizzo
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX, USA
- Department of Military and Emergency Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | | | | | - Michael D April
- Department of Military and Emergency Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- 14th Field Hospital, Fort Stewart, GA 31314, USA
| | - Steven G Schauer
- Department of Military and Emergency Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Departments of Anesthesiology and Emergency Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
- Center for Combat and Battlefield (COMBAT) Research, University of Colorado School of Medicine, Aurora, CO 80045, USA
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15
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Flinn AN, Kemp Bohan PM, Rauschendorfer C, Le TD, Rizzo JA. Inhalation Injury Severity Score on Admission Predicts Overall Survival in Burn Patients. J Burn Care Res 2023; 44:1273-1277. [PMID: 37279511 DOI: 10.1093/jbcr/irad083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Indexed: 06/08/2023]
Abstract
Inhalation injury is diagnosed in up to one-third of burn patients and is associated with increased morbidity and mortality. There are multiple scoring systems to grade inhalation injury, but no study has evaluated the ability of these scoring systems to predict outcomes of interest such as overall survival. We conducted a prospective, observational study of 99 intubated burn patients who underwent fiberoptic bronchoscopy within 24 hr of admission and graded inhalation injury using three scoring systems: abbreviated injury score (AIS), inhalation injury severity score (I-ISS), and mucosal score (MS). Agreement between scoring systems was assessed with Krippendorff's alpha (KA). Multivariable analyses were conducted to determine if variables were associated with overall survival. At admission, median AIS, I-ISS, and MS scores were 2 for all scoring systems. Patients who died had higher overall injury burden than those who survived and had similar median admission AIS and MS scores, but higher I-ISS scores. There was strong correlation between the inhalation injury grade at admission using the three scoring systems (KA = 0.85). On regression analysis, the only scoring system independently associated with overall survival was I-ISS (score 3 compared to scores 1-2: OR 13.16, 95% CI 1.65-105.07; P = .02). Progression of injury after initial assessment may contribute to the poor correlation between admission score and overall survival for injuries graded with AIS and MS. Repeated assessment may more accurately identify patients at increased risk for mortality.
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Affiliation(s)
- Ashley N Flinn
- Department of Trauma, Brooke Army Medical Center, Fort Sam Houston, TX, USA
| | | | | | - Tuan D Le
- U.S. Army Institute of Surgical Research, Fort Sam Houston, TX, USA
| | - Julie A Rizzo
- Department of Trauma, Brooke Army Medical Center, Fort Sam Houston, TX, USA
- Uniformed Services University of the Health Sciences, Department of Surgery, Bethesda, MD, USA
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16
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Rizzo JA, Coates EC, Serio-Melvin ML, Aden JK, Stallings JD, Foster KN, Abdel Fattah KR, Pham TN, Salinas J. Higher Initial Formula for Resuscitation After Severe Burn Injury Means Higher 24-Hour Volumes. J Burn Care Res 2023; 44:1017-1022. [PMID: 37339255 DOI: 10.1093/jbcr/irad065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
Initial fluid infusion rates for resuscitation of burn injuries typically use formulas based on patient weight and total body surface area (TBSA) burned. However, the impact of this rate on overall resuscitation volumes and outcomes have not been extensively studied. The purpose of this study was to determine the impact of initial fluid rates on 24-hour volumes and outcomes using the Burn Navigator (BN). The BN database is composed of 300 patients with ≥20% TBSA, >40 kg that were resuscitated utilizing the BN. Four study arms were analyzed based on the initial formula-2 ml/kg/TBSA, 3 ml/kg/TBSA, 4 ml/kg/TBSA or the Rule of Ten. Total fluids infused at 24 hours after admission were compared as well as resuscitation-related outcomes. A total of 296 patients were eligible for analysis. Higher starting rates (4 ml/kg/TBSA) resulted in significantly higher volumes at 24 hours (5.2 ± 2.2 ml/kg/TBSA) than lower rates (2 ml/kg/TBSA resulted in 3.9 ± 1.4 ml/kg/TBSA). No shock was observed in the high resuscitation cohort, whereas the lowest starting rate exhibited a 12% incidence, lower than both the Rule of Ten and 3 ml/kg/TBSA arms. There was no difference in 7-day mortality across groups. Higher initial fluid rates resulted in higher 24-hour fluid volumes. The choice of 2ml/kg/TBSA as initial rate did not result in increased mortality or more complications. An initial rate of 2ml/kg/TBSA is a safe strategy.
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Affiliation(s)
- Julie A Rizzo
- Brooke Army Medical Center, Fort Sam, Houston, Texas, USA
- Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| | - Elsa C Coates
- United States Army Institute of Surgical Research, Fort Sam, Houston, Texas, USA
| | - Maria L Serio-Melvin
- United States Army Institute of Surgical Research, Fort Sam, Houston, Texas, USA
| | - James K Aden
- Brooke Army Medical Center, Fort Sam, Houston, Texas, USA
| | | | - Kevin N Foster
- Arizona Burn Center Valleywise Health, Phoenix, Arizona, USA
| | | | - Tam N Pham
- UW Medicine Regional Burn Center, Harborview Medical Center, Seattle WA, USA
| | - Jose Salinas
- United States Army Institute of Surgical Research, Fort Sam, Houston, Texas, USA
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Keller BA, Skubic J, Betancourt-Garcia M, Ignacio RC, Radowsky JS, Tyroch AH, Lascano CP, Joseph B, Stewart C, Moore FO, Costantini TW, Rizzo JA, Paul JS, Galindo RM, Silva A, Coimbra R, Berndtson AE. Understanding the burden of traumatic injuries at the United States-Mexico border: A scoping review of the literature. J Trauma Acute Care Surg 2023; 95:276-284. [PMID: 36872517 DOI: 10.1097/ta.0000000000003920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
ABSTRACT The US-Mexico border is the busiest land crossing in the world and faces continuously increasing numbers of undocumented border crossers. Significant barriers to crossing are present in many regions of the border, including walls, bridges, rivers, canals, and the desert, each with unique features that can cause traumatic injury. The number of patients injured attempting to cross the border is also increasing, but significant knowledge gaps regarding these injuries and their impacts remain. The purpose of this scoping literature review is to describe the current state of trauma related to the US-Mexico border to draw attention to the problem, identify knowledge gaps in the existing literature, and introduce the creation of a consortium made up of representatives from border trauma centers in the Southwestern United States, the Border Region Doing Research on Trauma Consortium. Consortium members will collaborate to produce multicenter up-to-date data on the medical impact of the US-Mexico border, helping to elucidate the true magnitude of the problem and shed light on the impact cross-border trauma has on migrants, their families, and the US health care system. Only once the problem is fully described can meaningful solutions be provided.
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Affiliation(s)
- Benjamin A Keller
- From the Department of Surgery (B.A.K., R.C.I.), Division of Pediatric Surgery, Rady Children's Hospital, San Diego, California; Department of Surgery (J.S., A.S.), University of Texas Rio Grande Valley, Edinburg, Texas; Department of Trauma (J.S., M.B.-G.), DHR Health, Edinburg, Texas; Department of Trauma and Acute Care Surgery (J.S.R., J.A.R.), Brooke Army Medical Center, JBSA Fort Sam Houston, San Antonio, Texas; Department of Surgery (A.H.T.), Texas Tech University Health Sciences Center, El Paso, Texas; Department of Surgery (C.P.L.), South Texas Health System, McAllen, Texas; Department of Surgery (B.J., C.S.), University of Arizona-Tucson, Tucson, Arizona; Department of Surgery (F.O.M.), John Peter Smith Health, Fort Worth, Texas; Department of Surgery (T.W.C., A.E.B.), Division of Trauma, Surgical Critical Care, Burns, and Acute Care Surgery, University of California San Diego, San Diego, California; Department of Surgery (J.S.P.), Division of Acute Care Surgery, University of New Mexico, Albuquerque, New Mexico; Department of Surgery (R.M.G.), University of Texas Rio Grande Valley, Harlingen, Texas; and Department of Surgery (R.C.), Riverside University Health System Medical Center, Loma Linda University, Loma Linda, California
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Cannon JW, Cap AP, Rizzo JA, Polk TM. The cost of doing business in the modern world: Our readiness imperative. J Trauma Acute Care Surg 2023; 95:S1-S3. [PMID: 37257078 PMCID: PMC10389441 DOI: 10.1097/ta.0000000000004069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 05/16/2023] [Indexed: 06/02/2023]
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19
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Kenney CL, Singh P, Rizzo JA, Coates EC, Serio-Melvin ML, Aden JK, Foster KN, AbdelFattah KR, Pham TN, Salinas J. Impact of Alcohol and Methamphetamine Use on Burn Resuscitation. J Burn Care Res 2023:7179717. [PMID: 37227949 DOI: 10.1093/jbcr/irad077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Indexed: 05/27/2023]
Abstract
Mortality associated with burn injuries is declining with improved critical care. However, patients admitted with concurrent substance use have increased risk of complications and poor outcomes. The impact of alcohol and methamphetamine use on acute burn resuscitation has been described in single center studies, however, has not been studied since implementation of computerized decision support for resuscitation. Patients were evaluated based presence of alcohol, with a minimum blood alcohol level of 0.10, or positive methamphetamines on urine drug screen. Fluid volumes and urine output were examined over 48 hours. A total of 296 patients were analyzed. 37 (12.5%) were positive for methamphetamine use, 50 (16.9%) were positive for alcohol use, and 209 (70.1%) with negative for both. Patients positive for methamphetamine received a mean of 5.30 ±2.63 cc/kg/TBSA, patients positive for alcohol received a mean of 5.41 ±2.49 cc/kg/TBSA, and patients with neither received a mean of 4.33 ±1.79 cc/kg/TBSA. Patients with methamphetamine or alcohol use had significantly higher fluid requirements. In the first 6 hours patients with alcohol use had significantly higher urinary output in comparison to patients with methamphetamine use which had similar output to patients negative for both substances. This study demonstrated that patients with alcohol and methamphetamine use had statistically significantly greater fluid resuscitation requirements compared to patients without. The effects of alcohol as a diuretic align with previous literature. However, patients with methamphetamine lack the increased urinary output as a cause for their increased fluid requirements.
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Affiliation(s)
| | - Pranav Singh
- Brooke Army Medical Center, Fort Sam Houston, Texas, USA
| | - Julie A Rizzo
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
- Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| | - Elsa C Coates
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
| | | | - James K Aden
- Brooke Army Medical Center, Fort Sam Houston, Texas, USA
| | - Kevin N Foster
- Arizona Burn Center - Valleywise Health, Phoenix, Arizona, USA
| | | | - Tam N Pham
- UW Medicine Regional Burn Center, Harborview Medical Center, Seattle, Washington, USA
| | - Jose Salinas
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
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20
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Kenney CL, Nelson AR, Fahey RA, Roubik DJ, How RA, Radowsky JS, Sams VG, Schauer SG, Rizzo JA. EFFECTS OF SARS COVID-19 POSITIVITY STATUS ON VENOUS THROMBOSIS AND PULMONARY EMBOLISM RATES IN TRAUMA PATIENTS. Shock 2023; 59:599-602. [PMID: 36809212 DOI: 10.1097/shk.0000000000002097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
ABSTRACT Introduction : COVID-19-induced coagulopathy (CIC) can increase the risk of thromboembolism without underlying clotting disorders, even when compared with other respiratory viruses. Trauma has a known association with hypercoagulability. Trauma patients with concurrent COVID-19 infection potentially have an even greater risk of thrombotic events. The purpose of this study was to evaluate venous thromboembolism (VTE) rates in trauma patients with COVID-19. Methods : This study reviewed all adult patients (≥18 years of age) admitted to the Trauma Service from April through November 2020 for a minimum of 48 hours. Patients were grouped based off COVID-19 status and compared for inpatient VTE chemoprophylaxis regimen, thrombotic complications defined as deep vein thrombosis, pulmonary embolism, myocardial infarction, and cerebrovascular accident, intensive care unit (ICU) length of stay, hospital length of stay, and mortality. Results : A total of 2,907 patients were reviewed and grouped into COVID-19-positive (n = 110) and COVID-19-negative (n = 2,797) groups. There was no difference in terms of receiving deep vein thrombosis chemoprophylaxis or type, but a longer time to initiation in the positive group ( P = 0.0012). VTE occurred in 5 (4.55%) positive and 60 (2.15%) negative patients without a significant difference between the groups, as well as no difference in type of VTE observed. Mortality was higher ( P = 0.009) in the positive group (10.91%). Positive patients had longer median ICU LOS ( P = 0.0012) and total LOS ( P < 0.001). Conclusion : There were no increased rates of VTE complications between COVID-19-positive and -negative trauma patients, despite a longer time to initiation of chemoprophylaxis in the COVID-19-positive group. COVID-19-positive patients had increased ICU LOS, total LOS, and mortality, which are likely due to multifactorial causes but primarily related to their underlying COVID-19 infection.
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Affiliation(s)
| | - Austin R Nelson
- Uniformed Services University of Health Sciences, Bethesda, Maryland
| | - Ryan A Fahey
- Brooke Army Medical Center, Fort Sam Houston, Texas
| | | | | | - Jason S Radowsky
- Uniformed Services University of Health Sciences, Bethesda, Maryland
| | | | | | - Julie A Rizzo
- Uniformed Services University of Health Sciences, Bethesda, Maryland
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21
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April MD, Fisher AD, Hill R, Rizzo JA, Mdaki K, Bynum J, Schauer SG. Adherence to a Balanced Approach to Massive Transfusion in Combat Casualties. Mil Med 2023; 188:e524-e530. [PMID: 34347081 DOI: 10.1093/milmed/usab313] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/01/2021] [Accepted: 07/22/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Hemorrhage is the most common cause of potentially preventable death on the battlefield. Balanced resuscitation with plasma, platelets, and packed red blood cells (PRBCs) in a 1:1:1 ratio, if whole blood (WB) is not available, is associated with optimal outcomes among patients with hemorrhage. We describe the use of balanced resuscitation among combat casualties undergoing massive transfusion. MATERIALS AND METHODS We conducted a secondary analysis of data from the Department of Defense Trauma Registry (DODTR) spanning encounters from January 1, 2007, to March 17, 2020. We included all casualties who received at least 10 units of either PRBCs or WB. We categorized casualties as recipients of plasma-balanced resuscitation if the ratio of plasma to PRBC units was 0.8 or greater; similarly, we defined platelet-balanced resuscitation as a ratio of platelets to PRBC units of 0.8 or greater. We portrayed these populations using descriptive statistics and compared characteristics between non-balanced and balanced resuscitation recipients for both plasma and platelets. RESULTS We identified 28,950 encounters in the DODTR with documentation of prehospital activity. Massive transfusions occurred for 2,414 (8.3%) casualties, among whom 1,593 (66.0%) received a plasma-balanced resuscitation and 1,248 (51.7%) received a platelet-balanced resuscitation. During the study period, 962 (39.8%) of these patients received a fully balanced resuscitation with regard to both the plasma:PRBC and platelet:PRBC ratios. The remaining casualties did not undergo a balanced resuscitation. CONCLUSIONS While a majority of massive transfusion recipients received a plasma-balanced and/or platelet-balanced resuscitation, fewer patients received a platelet-balanced resuscitation. These findings suggest that more emphasis in training and supply may be necessary to optimize blood product resuscitation ratios.
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Affiliation(s)
- Michael D April
- 40th Forward Resuscitation and Surgical Detachment, 627 Hospital Center, 1st Medical Brigade, Fort Carson, CO 80913, USA
- Department of Military and Emergency Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Andrew D Fisher
- University of New Mexico Hospital, Albuquerque, NM 87131, USA
- Texas Army National Guard, Austin, TX 87131, USA
| | - Ronnie Hill
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, TX 78763, USA
| | - Julie A Rizzo
- Department of Military and Emergency Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, TX 78763, USA
| | - Kennedy Mdaki
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, TX 78763, USA
| | - James Bynum
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, TX 78763, USA
| | - Steven G Schauer
- Department of Military and Emergency Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, TX 78763, USA
- Department of Emergency Medicine, Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
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22
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Rizzo JA, Liu NT, Coates EC, Serio-Melvin ML, Aden JK, Stallings JD, Foster KN, AbdelFattah KR, Pham TN, Salinas J. The Battle of the Titans-Comparing Resuscitation Between Five Major Burn Centers Using the Burn Navigator. J Burn Care Res 2023; 44:446-451. [PMID: 35880437 DOI: 10.1093/jbcr/irac095] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The goal of burn resuscitation is to provide the optimal amount of fluid necessary to maintain end-organ perfusion and prevent burn shock. The objective of this analysis was to examine how the Burn Navigator (BN), a clinical decision support tool in burn resuscitation, was utilized across five major burn centers in the United States, using an observational trial of 300 adult patients. Subject demographics, burn characteristics, fluid volumes, urine output, and resuscitation-related complications were examined. Two hundred eighty-five patients were eligible for analysis. There was no difference among the centers on mean age (45.5 ± 16.8 years), body mass index (29.2 ± 6.9), median injury severity score (18 [interquartile range: 9-25]), or total body surface area (TBSA) (34 [25.8-47]). Primary crystalloid infusion volumes at 24 h differed significantly in ml/kg/TBSA (range: 3.1 ± 1.2 to 4.5 ± 1.7). Total fluids, including colloid, drip medications, and enteral fluids, differed among centers in both ml/kg (range: 132.5 ± 61.4 to 201.9 ± 109.9) and ml/kg/TBSA (3.5 ± 1.0 to 5.3 ± 2.0) at 24 h. Post-hoc adjustment using pairwise comparisons resulted in a loss of significance between most of the sites. There was a total of 156 resuscitation-related complications in 92 patients. Experienced burn centers using the BN successfully titrated resuscitation to adhere to 24 h goals. With fluid volumes near the Parkland formula prediction and a low prevalence of complications, the device can be utilized effectively in experienced centers. Further study should examine device utility in other facilities and on the battlefield.
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Affiliation(s)
- Julie A Rizzo
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA.,Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| | - Nehemiah T Liu
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
| | - Elsa C Coates
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
| | | | - James K Aden
- Brooke Army Medical Center, Fort Sam Houston, Texas, USA
| | | | - Kevin N Foster
- Arizona Burn Center - Valleywise Health, Phoenix, Arizona, USA
| | | | - Tam N Pham
- UW Medicine Regional Burn Center, Harborview Medical Center, Seattle, Washington, USA
| | - Jose Salinas
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
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23
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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24
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Schauer SG, Long BJ, Rizzo JA, Walrath BD, Baker JB, Gillespie KR, April MD. A Conceptual Framework for Non-Military Investigators to Understand the Joint Roles of Medical Care in the Setting of Future Large Scale Combat Operations. PREHOSP EMERG CARE 2023; 27:67-74. [PMID: 34797740 DOI: 10.1080/10903127.2021.2008070] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
As the wars in Iraq and Afghanistan end, the US military has begun to transition to the multi-domain operations concept with preparation for large scale combat operations against a near-peer adversary. In large scale combat operations, the deployed trauma system will likely see challenges not experienced during the Global War on Terrorism. The development of science and technology will be critical to close existing capability gaps and optimize casualty survival. This review comprises a framework of deployed trauma care to provide nonmilitary investigators a general understanding of our deployed trauma care system. Trauma care begins at the Role 1 which encompasses all care from the point of injury and the battalion aid station, through transport to the Role 2 or forward staged mobile surgical team such as a Forward Resuscitative Surgical Detachment. Role 1 point of injury care approximates the care delivered by Emergency Medical Services (EMS) personnel. The Battalion Aid Station approximates the care available at a freestanding emergency center with significant differences in training level of the providers, number of beds, and diagnostic capabilities. Role 2 medical care is part of an area support medical company with surgical capabilities. The Role 2 represents the first role of care which provides damage control surgery. This capability approximates a small community hospital with the primary difference being limited patient holding capacity and reduced diagnostic equipment. The Role 3 field hospital is the largest military treatment facility in the deployed setting. The Role 3 approximates a civilian level 2 trauma center with smaller holding capabilities and diagnostic abilities limited to that of a computed tomography (CT) scanner and less.
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Affiliation(s)
- Steven G Schauer
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA.,Brooke Army Medical Center, JBSA Fort Sam Houston, San Antonio, Texas, USA.,Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Brit J Long
- Brooke Army Medical Center, JBSA Fort Sam Houston, San Antonio, Texas, USA.,Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Julie A Rizzo
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA.,Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | | | - Jay B Baker
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA
| | - Kevin R Gillespie
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, Texas, USA
| | - Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.,40th Forward Resuscitative Surgical Detachment, Fort Carson, Colorado, USA
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25
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Arnold JL, MacDonald AG, Baker JB, Rizzo JA, April MD, Schauer SG. An Assessment of Casualties Undergoing Delayed Surgical Intervention in the Combat Setting. Med J (Ft Sam Houst Tex) 2023:28-33. [PMID: 36580521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
INTRODUCTION The US military is transitioning into a posture preparing for large-scale combat operations in which delays in evacuation may become common. It remains unclear which casualty population can have their initial surgical interventions delayed, thus reducing the evacuation demands. METHODS We performed a secondary analysis of a previously described dataset from the Department of Defense Trauma Registry (DODTR) focused on casualties who received prehospital care. In this, we sought to determine (1) of those who underwent operative intervention, the proportion of surgeries occurring ≥3 days post-injury, and (2) of those who underwent early versus delayed surgery, the proportions who required blood products. RESULTS There were 6,558 US military casualties who underwent surgical intervention-6,224 early (less than 3 days from injury) and 333 delayed (≥ 3 days from injury). The median Injury Severity Score (ISS) was higher in the early cohort (10 versus 6, p is less than 0.001). Serious injuries to the head were more common in the early cohort (12% versus 5%, p is less than 0.001), as were the thorax (13% versus 9%, p=0.041), abdomen (10% versus 5%, p=0.001), extremities (37% versus 14%, p is less than 0.001), and skin (4% versus less than 1%, p=0.001). Survival to discharge was lower in the early cohort (97% versus 100%, p is less than 0.001). Mean whole blood consumption was higher in the early cohort (0.5 versus 0 units, p is less than 0.001), as was packed red blood cells (6.3 versus 0.5, p is less than 0.001), platelets (0.9 versus 0, p is less than 0.001), and fresh frozen plasma (4.5 versus 0.2, p is less than 0.001). The administration of any units of packed red blood cells and whole blood was higher for the early cohort (37% versus 7%, p is less than 0.001), as was a ≥3 units threshold (30% versus 3%, p is less than 0.001), and ≥10 units threshold (18% versus 1%, p is less than 0.001). CONCLUSIONS Few combat casualties underwent delayed surgical interventions defined as ≥3 days post injury, and only a small number of casualties with delayed surgical intervention received blood products. Casualties who received early surgical intervention were more likely to have higher injury severity scores, and more likely to receive blood.
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Affiliation(s)
- Jacob L Arnold
- Uniformed Services University of the Health Sciences, Bethesda, MD; and Brooke Army Medical Center, JBSA Fort Sam Houston, TX
| | | | - Jay B Baker
- Joint Trauma System, JBSA Fort Sam Houston, TX; Uniformed Services University of the Health Sciences, Bethesda, MD; and Brooke Army Medical Center, JBSA Fort Sam Houston, TX
| | - Julie A Rizzo
- Uniformed Services University of the Health Sciences, Bethesda, MD; and Brooke Army Medical Center, JBSA Fort Sam Houston, TX
| | - Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, MD, and 40th Forward Resuscitation and Surgical Detachment, 627th Hospital Center, 1st Medical Brigade, Fort Carson, CO
| | - Steven G Schauer
- Uniformed Services University of the Health Sciences, Bethesda, MD; US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX; and Brooke Army Medical Center, JBSA Fort Sam Houston, TX
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26
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Mendez J, Jonas RB, Barry L, Urban S, Cheng AC, Aden JK, Bynum J, Fischer AD, Shackelford SA, Jenkins DH, Gurney JM, Bebarta VS, Cap AP, Rizzo JA, Wright FL, Nicholson SE, Schauer SG. Clinical Assessment of Low Calcium In traUMa (CALCIUM). Med J (Ft Sam Houst Tex) 2023:74-80. [PMID: 36580528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Major trauma frequently occurs in the deployed, combat setting and is especially applicable in the recent conflicts with explosives dominating the combat wounded. In future near-peer conflicts, we will likely face even more profound weapons including mortars and artillery. As such, the number of severely wounded will likely increase. Hypocalcemia frequently occurs after blood transfusions, secondary to the preservatives in the blood products; however, recent data suggests major trauma in and of itself is a risk factor for hypocalcemia. Calcium is a major ion involved in heart contractility; thus, hypocalcemia can lead to poor contractility. Smaller studies have linked hypocalcemia to worse outcomes, but it remains unclear what causes hypocalcemia and if intervening could potentially save lives. The objective of this study is to determine the incidence of hypocalcemia on hospital arrival and the association with survival. We are seeking to address the following scientific questions, (1) Is hypocalcemia present following traumatic injury prior to transfusion during resuscitation? (2) Does hypocalcemia influence the amount of blood products transfused? (3) To what extent is hypocalcemia further exacerbated by transfusion? (4) What is the relationship between hypocalcemia following traumatic injury and mortality? We will conduct a multicenter, prospective, observational study. We will gather ionized calcium levels at 0, 3, 6, 12, 18, and 24 hours as part of scheduled calcium measurements. This will ensure we have accurate data to assess the early and late effects of hypocalcemia throughout the course of resuscitation and hemorrhage control. These data will be captured by a trained study team at every site. Our findings will inform clinical practice guidelines and optimize the care delivered in the combat and civilian trauma setting. We are seeking 391 patients with complete data to meet our a priori inclusion criteria. Our study will have major immediate short-term findings including risk prediction modeling to assess who is at risk for hypocalcemia, data assessing interventions associated with the incidence of hypocalcemia, and outcome data including mortality and its link to early hypocalcemia.
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Affiliation(s)
- Jessica Mendez
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX
| | - Rachelle B Jonas
- University Hospital at University of Texas Health San Antonio, San Antonio, TX
| | - Lauren Barry
- University Hospital at University of Texas Health San Antonio, San Antonio, TX
| | | | - Alex C Cheng
- Vanderbilt University Medical Center, Nashville, TN
| | - James K Aden
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX
| | - James Bynum
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX
| | - Andrew D Fischer
- University of New Mexico, Albuquerque, NM; and Texas National Guard, Austin, TX
| | | | - Donald H Jenkins
- University Hospital at University of Texas Health San Antonio, San Antonio, TX
| | - Jennifer M Gurney
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and Joint Trauma System, JBSA Fort Sam Houston, TX
| | | | - Andrew P Cap
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX; Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and Uniformed Services University of the Health Sciences, Bethesda, MD
| | - Julie A Rizzo
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and Uniformed Services University of the Health Sciences, Bethesda, MD
| | | | | | - Steven G Schauer
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX; Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and Uniformed Services University of the Health Sciences, Bethesda, MD
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27
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Arnold JL, MacDonald AG, Baker JB, Rizzo JA, April MD, Schauer SG. An Assessment of Casualties Undergoing Delayed Surgical Intervention in the Combat Setting. Med J (Ft Sam Houst Tex) 2023:28-33. [PMID: 36607295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
INTRODUCTION The US military is transitioning into a posture preparing for large-scale combat operations in which delays in evacuation may become common. It remains unclear which casualty population can have their initial surgical interventions delayed, thus reducing the evacuation demands. METHODS We performed a secondary analysis of a previously described dataset from the Department of Defense Trauma Registry (DODTR) focused on casualties who received prehospital care. In this, we sought to determine (1) of those who underwent operative intervention, the proportion of surgeries occurring ≥3 days post-injury, and (2) of those who underwent early versus delayed surgery, the proportions who required blood products. RESULTS There were 6,558 US military casualties who underwent surgical intervention-6,224 early (less than 3 days from injury) and 333 delayed (≥ 3 days from injury). The median Injury Severity Score (ISS) was higher in the early cohort (10 versus 6, p is less than 0.001). Serious injuries to the head were more common in the early cohort (12% versus 5%, p is less than 0.001), as were the thorax (13% versus 9%, p=0.041), abdomen (10% versus 5%, p=0.001), extremities (37% versus 14%, p is less than 0.001), and skin (4% versus less than 1%, p=0.001). Survival to discharge was lower in the early cohort (97% versus 100%, p is less than 0.001). Mean whole blood consumption was higher in the early cohort (0.5 versus 0 units, p is less than 0.001), as was packed red blood cells (6.3 versus 0.5, p is less than 0.001), platelets (0.9 versus 0, p is less than 0.001), and fresh frozen plasma (4.5 versus 0.2, p is less than 0.001). The administration of any units of packed red blood cells and whole blood was higher for the early cohort (37% versus 7%, p is less than 0.001), as was a ≥3 units threshold (30% versus 3%, p is less than 0.001), and ≥10 units threshold (18% versus 1%, p is less than 0.001). CONCLUSIONS Few combat casualties underwent delayed surgical interventions defined as ≥3 days post injury, and only a small number of casualties with delayed surgical intervention received blood products. Casualties who received early surgical intervention were more likely to have higher injury severity scores, and more likely to receive blood.
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Affiliation(s)
- Jacob L Arnold
- Uniformed Services University of the Health Sciences, Bethesda, MD; and Brooke Army Medical Center, JBSA Fort Sam Houston, TX
| | | | - Jay B Baker
- Joint Trauma System, JBSA Fort Sam Houston, TX; Uniformed Services University of the Health Sciences, Bethesda, MD; and Brooke Army Medical Center, JBSA Fort Sam Houston, TX
| | - Julie A Rizzo
- Uniformed Services University of the Health Sciences, Bethesda, MD; and Brooke Army Medical Center, JBSA Fort Sam Houston, TX
| | - Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, MD, and 40th Forward Resuscitation and Surgical Detachment, 627th Hospital Center, 1st Medical Brigade, Fort Carson, CO
| | - Steven G Schauer
- Uniformed Services University of the Health Sciences, Bethesda, MD; US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX; and Brooke Army Medical Center, JBSA Fort Sam Houston, TX
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28
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Anderson DE, Kocik VI, Rizzo JA, Fisher AD, Mould-Millman NK, April MD, Schauer SG. A Narrative Review of Traumatic Pneumothorax Diagnoses and Management. Med J (Ft Sam Houst Tex) 2023:3-10. [PMID: 36607292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Correct identification and rapid intervention of a traumatic pneumothorax is necessary to avoid hemodynamic collapse and subsequent morbidity and mortality. The purpose of this clinical review is to summarize the evaluation and best treatment strategies to improve outcomes in combat casualties. Blunt, explosive, and penetrating trauma are the 3 etiologies for causing a traumatic pneumothorax. Blunt trauma tends to be more common, but all etiologies require similar treatment. The current standard to diagnose pneumothorax is through imaging to include ultrasound, chest x-ray, or computed tomography. A physical exam aids in the diagnosis especially when few other resources are available. Recent studies on the treatment of a small, closed pneumothorax involve conservative care, which includes close observation of the patient and monitoring supplemental oxygen. For a large, closed pneumothorax, conservative treatment is still a possible option, but manual aspiration may be required. Less often, a needle or tube thoracostomy is needed to reinflate the lung. Large, open pneumothoraxes require the most invasive treatment with current guidelines recommending tube thoracostomy. More invasive management options can result in higher rates of complications. Given the significant variability in practice patterns, most notable in resource limited settings, the areas for potential research are presented.
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Affiliation(s)
- David E Anderson
- University of Incarnate Word School of Osteopathic Medicine, San Antonio, TX
| | - Veronica I Kocik
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX
| | - Julie A Rizzo
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and University of Colorado-Anschutz Medical Campus, Aurora, CO
| | - Andrew D Fisher
- University of New Mexico Hospital, Albuquerque, NM; and Texas Army National Guard, Austin, TX
| | | | - Michael D April
- Uniformed Services University of the Health Sciences, Bethesda, MD; and 40th Forward Resuscitative Surgical Detachment, Fort Carson, CO
| | - Steven G Schauer
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX; Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and Texas Army National Guard, Austin, TX
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Mendez J, Jonas RB, Barry L, Urban S, Cheng AC, Aden JK, Bynum J, Fisher AD, Shackelford SA, Jenkins DH, Gurney JM, Bebarta VS, Cap AP, Rizzo JA, Wright FL, Nicholson SE, Schauer SG. Clinical Assessment of Low Calcium In traUMa (CALCIUM). Med J (Ft Sam Houst Tex) 2023:74-80. [PMID: 36607302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Major trauma frequently occurs in the deployed, combat setting and is especially applicable in the recent conflicts with explosives dominating the combat wounded. In future near-peer conflicts, we will likely face even more profound weapons including mortars and artillery. As such, the number of severely wounded will likely increase. Hypocalcemia frequently occurs after blood transfusions, secondary to the preservatives in the blood products; however, recent data suggests major trauma in and of itself is a risk factor for hypocalcemia. Calcium is a major ion involved in heart contractility; thus, hypocalcemia can lead to poor contractility. Smaller studies have linked hypocalcemia to worse outcomes, but it remains unclear what causes hypocalcemia and if intervening could potentially save lives. The objective of this study is to determine the incidence of hypocalcemia on hospital arrival and the association with survival. We are seeking to address the following scientific questions, (1) Is hypocalcemia present following traumatic injury prior to transfusion during resuscitation? (2) Does hypocalcemia influence the amount of blood products transfused? (3) To what extent is hypocalcemia further exacerbated by transfusion? (4) What is the relationship between hypocalcemia following traumatic injury and mortality? We will conduct a multicenter, prospective, observational study. We will gather ionized calcium levels at 0, 3, 6, 12, 18, and 24 hours as part of scheduled calcium measurements. This will ensure we have accurate data to assess the early and late effects of hypocalcemia throughout the course of resuscitation and hemorrhage control. These data will be captured by a trained study team at every site. Our findings will inform clinical practice guidelines and optimize the care delivered in the combat and civilian trauma setting. We are seeking 391 patients with complete data to meet our a priori inclusion criteria. Our study will have major immediate short-term findings including risk prediction modeling to assess who is at risk for hypocalcemia, data assessing interventions associated with the incidence of hypocalcemia, and outcome data including mortality and its link to early hypocalcemia.
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Affiliation(s)
- Jessica Mendez
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX
| | - Rachelle B Jonas
- University Hospital at University of Texas Health San Antonio, San Antonio, TX
| | - Lauren Barry
- University Hospital at University of Texas Health San Antonio, San Antonio, TX
| | | | - Alex C Cheng
- Vanderbilt University Medical Center, Nashville, TN
| | - James K Aden
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX
| | - James Bynum
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX
| | - Andrew D Fisher
- University of New Mexico, Albuquerque, NM; and Texas National Guard, Austin, TX
| | | | - Donald H Jenkins
- University Hospital at University of Texas Health San Antonio, San Antonio, TX
| | - Jennifer M Gurney
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and Joint Trauma System, JBSA Fort Sam Houston, TX
| | | | - Andrew P Cap
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX; Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and Uniformed Services University of the Health Sciences, Bethesda, MD
| | - Julie A Rizzo
- Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and Uniformed Services University of the Health Sciences, Bethesda, MD
| | | | | | - Steven G Schauer
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX; Brooke Army Medical Center, JBSA Fort Sam Houston, TX; and Uniformed Services University of the Health Sciences, Bethesda, MD
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Suresh MR, Mills AC, Britton GW, Pfeiffer WB, Grant MC, Rizzo JA. Initial treatment strategies in new-onset atrial fibrillation in critically ill burn patients. Int J Burns Trauma 2022; 12:251-260. [PMID: 36660265 PMCID: PMC9845808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 12/05/2022] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Atrial fibrillation is associated with increased morbidity and mortality in critically ill patients. Few studies have specifically examined this arrhythmia in burn patients. Given the significant clinical implications of atrial fibrillation, understanding the optimal management strategy of this arrhythmia in burn patients is important. Consequently, the purpose of this study was to examine rate- and rhythm-control strategies in the management of new onset atrial fibrillation (NOAF) and assess their short term outcomes in critically ill burn patients. METHODS We identified all patients admitted to our institution's burn intensive care unit between January 2007 and May 2018 who developed NOAF. Demographic information and burn injury characteristics were captured. Patients were grouped into two cohorts based on the initial pharmacologic treatment strategy: rate-(metoprolol or diltiazem) or rhythm-control (amiodarone). The primary outcome was conversion to sinus rhythm. Secondary outcomes included relapse or recurrence of atrial fibrillation, drug-related adverse events, and complications and mortality within 30 days of the NOAF episode. RESULTS There were 68 patients that experienced NOAF, and the episodes occurred on median days 8 and 9 in the rate- and rhythm-control groups, respectively. The length of the episodes was not significantly different between the groups. Conversion to sinus rhythm occurred more often in the rhythm-control group (P = 0.04). There were no differences in the incidences of relapse and recurrence of atrial fibrillation, and the complications and mortality between the groups. Hypotension was the most common drug-related adverse event and occurred more frequently in the rate-control group, though this difference was not significant. CONCLUSIONS Conversion to sinus rhythm occurred more often in the rhythm-control group. Outcomes were otherwise similar in terms of mortality, complications, and adverse events. Hypotension occurred less frequently in the rhythm-control group, and although this difference was not significant, episodes of hypotension can have important clinical implications. Given these factors, along with burn patients having unique injury characteristics and a hypermetabolic state that may contribute to the development of NOAF, when choosing between rate- and rhythm control strategies, rhythm-control with amiodarone may be a better choice for managing NOAF in burn patients.
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Affiliation(s)
- Mithun R Suresh
- Department of Medicine, CentraCare-St.Cloud Hospital1406 6th Ave N, St. Cloud 56303, MN, USA
| | - Alexander C Mills
- Department of Surgery, University of Texas Health Science Center at Houston6410 Fannin Street, Houston 77030, TX, USA
| | - Garrett W Britton
- Burn Center, United States Army Institute of Surgical Research3698 Chambers Pass STE B, JBSA Ft. Sam Houston 78234, TX, USA
| | - Wilson B Pfeiffer
- Department of Anesthesiology, Brooke Army Medical Center3551 Roger Brooke Dr, JBSA Ft. Sam Houston 78234, TX, USA
| | - Marissa C Grant
- Department of Anesthesiology, Brooke Army Medical Center3551 Roger Brooke Dr, JBSA Ft. Sam Houston 78234, TX, USA
| | - Julie A Rizzo
- Department of Trauma, Brooke Army Medical Center3551 Roger Brooke Dr, JBSA Ft. Sam Houston 78234, TX, USA,Department of Surgery, Uniformed Services University of The Health Sciences4301 Jones Bridge Rd, Bethesda 20814, MD, USA
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Bedolla CN, Rauschendorfer C, Havard DB, Guenther BA, Rizzo JA, Blackburn AN, Ryan KL, Blackburn MB. Spectral Reflectance as a Unique Tissue Identifier in Healthy Humans and Inhalation Injury Subjects. Sensors (Basel) 2022; 22:3377. [PMID: 35591067 PMCID: PMC9103967 DOI: 10.3390/s22093377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/22/2022] [Accepted: 04/26/2022] [Indexed: 06/15/2023]
Abstract
Tracheal intubation is the preferred method of airway management, a common emergency trauma medicine problem. Currently, methods for confirming tracheal tube placement are lacking, and we propose a novel technology, spectral reflectance, which may be incorporated into the tracheal tube for verification of placement. Previous work demonstrated a unique spectral profile in the trachea, which allowed differentiation from esophageal tissue in ex vivo swine, in vivo swine, and human cadavers. The goal of this study is to determine if spectral reflectance can differentiate between trachea and other airway tissues in living humans and whether the unique tracheal spectral profile persists in the presence of an inhalation injury. Reflectance spectra were captured using a custom fiber-optic probe from the buccal mucosa, posterior oropharynx, and trachea of healthy humans intubated for third molar extraction and from the trachea of patients admitted to a burn intensive care unit with and without inhalation injury. Using ratio comparisons, we found that the tracheal spectral profile was significantly different from buccal mucosa or posterior oropharynx, but the area under the curve values are not high enough to be used clinically. In addition, inhalation injury did not significantly alter the spectral reflectance of the trachea. Further studies are needed to determine the utility of this technology in a clinical setting and to develop an algorithm for tissue differentiation.
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Affiliation(s)
- Carlos N. Bedolla
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, TX 78234, USA; (C.N.B.); (C.R.); (J.A.R.); (M.B.B.)
| | - Catherine Rauschendorfer
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, TX 78234, USA; (C.N.B.); (C.R.); (J.A.R.); (M.B.B.)
| | - Drew B. Havard
- Naval Medical Research Unit San Antonio, JBSA Fort Sam Houston, San Antonio, TX 78234, USA;
| | - Blaine A. Guenther
- 59th Medical Wing, Brooke Army Medical Center, JBSA Fort Sam Houston, San Antonio, TX 78234, USA;
| | - Julie A. Rizzo
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, TX 78234, USA; (C.N.B.); (C.R.); (J.A.R.); (M.B.B.)
| | | | - Kathy L. Ryan
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, TX 78234, USA; (C.N.B.); (C.R.); (J.A.R.); (M.B.B.)
| | - Megan B. Blackburn
- U.S. Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, TX 78234, USA; (C.N.B.); (C.R.); (J.A.R.); (M.B.B.)
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Coates E, Rizzo JA, Salinas J, Serio-Melvin M. 106 Nursing Documentation Variability Among Burn Centers Using the Burn Navigator. J Burn Care Res 2022. [PMCID: PMC8945270 DOI: 10.1093/jbcr/irac012.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Introduction Managing burn fluid resuscitation for large burns is challenging and relies heavily on accurate nursing documentation. The Burn Navigator (BN) is a clinical decision-support system designed to guide clinicians in burn fluid resuscitation. However, data entered into the BN do not auto-populate into the electronic medical record (EMR), thus requiring nurses to document in two systems. We sought to compare differences in nursing documentation of data entries between the EMR and the BN on burn patients with ≥ 20% total body surface area (TBSA) undergoing intravenous (IV) fluid resuscitation. Methods Institutional Review Board approval was obtained for a multi-center observational study of burn patients undergoing fluid resuscitation using the BN. Data were collected and analyzed between the EMR and BN entries entered into the REDCap database from 5 American Burn Association (ABA)-verified burn centers. The following variables were analyzed: time of burn injury, weight, TBSA burned, urine output (UOP), and hourly IV crystalloid fluid volume. Results Analysis included 296 subjects (of 300 enrolled). Results show no significant difference between burn centers for mean weight (BN 87.02 ± 22.9 kg vs. EMR 87.1 ± 23.3 kg), TBSA (BN 40.71 ± 19.24% vs. EMR 40.97 ± 19.29%), or time of burn injury (< 1 hour). The time of injury recorded in the BN versus EMR was later in 44.6% (n=132) of patients and earlier in 46.4%, (n=138) and the same in 8.8% (n=26) of records. Additionally, in 293 records, there was no significant difference between centers in patient UOP (BN 0.91 ± 0.52 ml/kg/hr vs. EMR 0.91 ± 0.63 ml/kg/hr). One site had a significant difference in hourly fluid rates (Figure) due to a lack of inclusion of pre-hospital fluids. ![]()
Conclusions When comparing the data between the EMR to BN, it was observed that pre-hospital fluids tended not to be documented in the EMR, causing a statistically significant difference in total fluids administered in one burn center. Overall, the nursing documentation variability was minimal across all sites even though the nurses had to document the data in two different systems, while simultaneously caring for critically ill patients with large burn injuries. Close monitoring of the nursing documentation during burn fluid resuscitation should always be a priority.
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Affiliation(s)
- Elsa Coates
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas
| | - Julie A Rizzo
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas
| | | | - Maria Serio-Melvin
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas
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Rizzo JA, Coates E, Salinas J, Serio-Melvin M, Pham TN, Abdelfattah KR, Foster KN, Liu NT. 2 Examination of Burn Resuscitation Complications from the Burn Navigator Observational Trial. J Burn Care Res 2022. [PMCID: PMC8945752 DOI: 10.1093/jbcr/irac012.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Introduction
Burn care continues to focus on providing enough fluid resuscitation to perfuse end organs with the least amount of fluid necessary in order to prevent complications related to excess fluid. In this observational trial of 5 ABA-verified burn centers that utilized the Burn Navigator (BN), a clinical decision support tool, we sought to examine resuscitation-related complications that occurred in the first 48 hours after burn injury. Since minimal literature exists regarding the incidence of resuscitation-related complications in the acute phase after burn injury, we aimed to present our data for future comparison.
Methods
An observational study of adult patients undergoing burn resuscitation utilizing the BN was conducted. Data were gathered hourly for the first 48 hours for patients on fluid infusion rates, laboratory data, critical care elements to include ventilator settings and clinically relevant outcomes. Morbidities were classified based on each burn center’s definition as related to over or under-resuscitation and variables associated with these outcomes were extracted from the data set.
Results
Three hundred patients were enrolled into the study, and 156 resuscitation-related complications were documented in 92 patients in the first 48 hours after admission. Compartment syndromes (abdominal, extremity, ocular) accounted for 62 (40%) of the complications. ARDS occurred in 9 patients. ARDS patients were the most severely injured, reflected by highest Baux score. None of the ARDS patients had an inhalation injury. The under-resuscitation morbidities of shock and acute kidney injury accounted for 81 (52%) of the complications. Patients experiencing shock received greater than the Parkland formula in the first 24 hours after injury. Most patients with AKI continued to make adequate urine during their resuscitation period, with 59% making an average of >30 ml/hr over the first 24 hours. Nearly half of patients with AKI were placed on renal replacement therapy in the first 48 hours. Seventeen patients (18.5%) experienced both a compartment syndrome and either AKI or shock.
Conclusions
This large observational study demonstrates variables associated with different complications across 5 major burn centers and shows that complications associated with over- and under-resuscitation can occur within the same patient during resuscitation after burn injury. Additional comparative studies are needed to better understand the cause of these complications, to determine the incidence of these complications in a larger population and criteria used to define each complication.
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Affiliation(s)
- Julie A Rizzo
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; UT-Southwestern Medical Center, Dallas, Texas; The Arizona Burn Center Valleywise Health, Phoenix, Ari
| | - Elsa Coates
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; UT-Southwestern Medical Center, Dallas, Texas; The Arizona Burn Center Valleywise Health, Phoenix, Ari
| | | | - Maria Serio-Melvin
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; UT-Southwestern Medical Center, Dallas, Texas; The Arizona Burn Center Valleywise Health, Phoenix, Ari
| | - Tam N Pham
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; UT-Southwestern Medical Center, Dallas, Texas; The Arizona Burn Center Valleywise Health, Phoenix, Ari
| | - Kareem R Abdelfattah
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; UT-Southwestern Medical Center, Dallas, Texas; The Arizona Burn Center Valleywise Health, Phoenix, Ari
| | - Kevin N Foster
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; UT-Southwestern Medical Center, Dallas, Texas; The Arizona Burn Center Valleywise Health, Phoenix, Ari
| | - Nehemiah T Liu
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; UT-Southwestern Medical Center, Dallas, Texas; The Arizona Burn Center Valleywise Health, Phoenix, Ari
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Rizzo JA, Coates E, Salinas J, Serio-Melvin M, Pham TN, Foster KN, Abdelfattah KR, Liu NT. 1 The Battle of the Titans: Comparing Resuscitation Between 5 Centers Using the Burn Navigator. J Burn Care Res 2022. [PMCID: PMC8946065 DOI: 10.1093/jbcr/irac012.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Introduction
The goal of burn resuscitation is to provide the least amount of fluid necessary to maintain end-organ perfusion and prevent burn shock. The objective of this analysis was to examine how the Burn Navigator (BN), a clinical decision support tool in burn resuscitation, was utilized across 5 major burn centers in the United States.
Methods
A non-interventional, observational trial of 300 adult patients with embedded prospective and retrospective components was undertaken to examine the effectiveness of the BN in burn resuscitation. 5 ABA-verified burn centers enrolled patients. Data examining patient demographics, burn characteristics, fluid volumes, and resuscitation-related complications were examined. Statistical analysis compared the 5 sites in terms of these variables.
Results
A total of 285 patients were eligible for analysis. There was no difference among the centers in terms of average age (45.5 + 16.8 years), BMI (29.2 + 6.9), ISS (21.2 + 12.8), or median TBSA (34 [25.8, 47]). Primary crystalloid infusion volumes at 24 hours differed significantly when measured in ml/kg/TBSA (median 3.7 [2.9, 8.8], range 1.3 to 12.3). Similarly, total fluids, which includes colloid adjuncts, drip medications and enteral fluids, differed between groups when measured in both ml/kg (median 149.8 [106.5, 224.1], range 38.4 to 536.2) and ml/kg/TBSA (4.2 [3.3, 5.5], 1.7 to 15.3) at 24 hours. Post-hoc adjustment for pairwise comparisons resulted in a loss of significance between most of the sites. There was a total of 156 resuscitation-related complications reported across the 5 sites with an average incidence of 44.4 % incidence.
Conclusions
The Burn Navigator appeared to standardize fluid resuscitations across 5 major US burn centers. With primary fluid volumes near the Parkland formula, the device can be utilized effectively in burn centers, and further study should exam the utility of this device in facilities that do not commonly treat burn injuries, as well as the battlefield.
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Affiliation(s)
- Julie A Rizzo
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; The Arizona Burn Center Valleywise Health, Phoenix, Arizona; UT-Southwestern Medical Center, Dallas, T
| | - Elsa Coates
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; The Arizona Burn Center Valleywise Health, Phoenix, Arizona; UT-Southwestern Medical Center, Dallas, T
| | | | - Maria Serio-Melvin
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; The Arizona Burn Center Valleywise Health, Phoenix, Arizona; UT-Southwestern Medical Center, Dallas, T
| | - Tam N Pham
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; The Arizona Burn Center Valleywise Health, Phoenix, Arizona; UT-Southwestern Medical Center, Dallas, T
| | - Kevin N Foster
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; The Arizona Burn Center Valleywise Health, Phoenix, Arizona; UT-Southwestern Medical Center, Dallas, T
| | - Kareem R Abdelfattah
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; The Arizona Burn Center Valleywise Health, Phoenix, Arizona; UT-Southwestern Medical Center, Dallas, T
| | - Nehemiah T Liu
- US Army Institute of Surgical Research, Fort Sam Houston, Texas; US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas; US Army Institute of Surgical Research, San Antonio, Texas; US Army Institute of Surgical Research, Cibolo, Texas; University of Washington, Seattle, Washington; The Arizona Burn Center Valleywise Health, Phoenix, Arizona; UT-Southwestern Medical Center, Dallas, T
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Carney BW, Rizzo JA, Alderete JF, Cindass R, Markelz AE, Cancio LC. Carbapenem-Resistant Enterobacterales Infection After Massive Blast Injury: Use of Cefiderocol Based Combination Therapy. Mil Med 2021; 186:1241-1245. [PMID: 34453163 DOI: 10.1093/milmed/usab350] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/06/2021] [Accepted: 08/11/2021] [Indexed: 11/12/2022] Open
Abstract
A military soldier sustained a blast injury in Afghanistan, resulting in amputations and hemipelvectomy. He developed New Delhi metallo-beta-lactamase-producing E. coli bacteremia, soft-tissue infection, and sacral osteomyelitis. These organisms are being increasingly discovered in different communities around the world. He was successfully treated with tigecycline and cefiderocol. Cefiderocol is a novel siderophore-based cephalosporine developed to treat serious infections, including those caused by carbapenem-resistant Enterobacterales.
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Affiliation(s)
- B W Carney
- Brooke Army Medical Center, San Antonio, TX 78234, USA
| | - J A Rizzo
- United States Army Institute of Surgical Research, San Antonio, TX 78234, USA
- Uniformed Services University of Health Sciences, Bethesda, MD 20814, USA
| | - J F Alderete
- Brooke Army Medical Center, San Antonio, TX 78234, USA
| | - R Cindass
- United States Army Institute of Surgical Research, San Antonio, TX 78234, USA
| | - A E Markelz
- Brooke Army Medical Center, San Antonio, TX 78234, USA
| | - L C Cancio
- Brooke Army Medical Center, San Antonio, TX 78234, USA
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Rizzo JA, Liu NT, Coates EC, Serio-Melvin ML, Foster KN, Shabbir M, Pham TN, Salinas J. Initial Results of the American Burn Association (ABA) Observational Multi-Center Evaluation on the Effectiveness of the Burn Navigator. J Burn Care Res 2021; 43:728-734. [PMID: 34652443 DOI: 10.1093/jbcr/irab182] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The objective of this multi-center observational study was to evaluate resuscitation volumes and outcomes of patients who underwent fluid resuscitation utilizing the Burn Navigator (BN), a resuscitation clinical decision support tool. Two analyses were performed: examination of the first 24 hours of resuscitation, and the first 24 hours post-burn regardless of when the resuscitation began, to account for patients who presented in a delayed fashion. Patients were classified as having followed the BN (FBN) if all hourly fluid rates were within ±20 mL of BN recommendations for that hour at least 83% of the time, otherwise they were classified as not having followed BN (NFBN). Analysis of resuscitation volumes for FBN patients in the first 24 hours resulted in average volumes for primary crystalloid) and total fluids administered of 4.07 ± 1.76 mL/kg/TBSA (151.48 ± 77.46 mL/kg), and 4.68 ± 2.06 mL/kg/TBSA (175.01 ± 92.22 mL/kg), respectively. Patients who presented in a delayed fashion revealed average volumes for primary and total fluids of 5.28 ± 2.54 mL/kg/TBSA (201.11 ± 106.53 mL/kg), 6.35 ± 2.95 mL/kg/TBSA (244.08 ± 133.5 mL/kg), respectively. There was a significant decrease in the incidence of burn shock in the FBN group (p< 0.05). This study shows that the BN provides comparable resuscitation volumes of primary crystalloid fluid to the Parkland Formula, recommends total fluid infusion less than the Ivy Index, and was associated with a decreased incidence of burn shock. Early initiation of the BN device resulted in lower overall fluid volumes.
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Affiliation(s)
- Julie A Rizzo
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX.,Uniformed Services University of Health Sciences, Bethesda, MD
| | - Nehemiah T Liu
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX
| | - Elsa C Coates
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX
| | | | | | | | - Tam N Pham
- UW Medicine Regional Burn Center, Seattle WA
| | - Jose Salinas
- US Army Institute of Surgical Research, JBSA Fort Sam Houston, TX
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Dewey WS, Cunningham KB, Shingleton SK, Pruskowski KA, Welsh A, Rizzo JA. Safety of Early Postoperative Range of Motion in Burn Patients With Newly Placed Hand Autografts: A Pilot Study. J Burn Care Res 2021; 41:809-813. [PMID: 32386300 DOI: 10.1093/jbcr/iraa072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Patients who suffer hand burns are at a high contracture risk, partly due to numerous cutaneous functional units, or contracture risk areas, located within the hand. Patients who undergo split-thickness skin grafting are often immobilized postoperatively for graft protection. Recent practice at our burn center includes an early range of motion (EROM) following hand grafting to limit unnecessary immobilization. The purpose of this study was to determine whether EROM is safe to perform after hand grafting and if there is any clinical benefit. This retrospective, matched case-control study of adults compared patients who received EROM to subjects who received the standard 3 to 5 days of postoperative immobilization. Patients were evaluated for graft loss and range of motion. Seventy-one patients were included in this study: 37 EROM patients and 34 matched controls. Six patients experienced minor graft loss, three of these were not attributable to EROM. All graft loss was less than 1 cm and none required additional surgery. Significantly more patients who received EROM achieved full-digital flexion by the first outpatient visit (25/27 = 92.6% vs 15/22 = 68.2%; P = .028). Performing EROM does not cause an increase in graft loss. All areas of graft loss from the EROM group healed without intervention. There appears to be a benefit to EROM since there was a significant improvement in the patients' ability to make a full fist at initial outpatient follow-up. Additional prospective analysis is needed to examine the true clinical utility of EROM in the hand and other contracture-prone areas.
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Affiliation(s)
- William Scott Dewey
- U.S. Army Institute of Surgical Research, Army Burn Center, ATTN: MCMR-SRT, Sam Houston, Texas
| | - Kyle B Cunningham
- U.S. Army Institute of Surgical Research, Army Burn Center, ATTN: MCMR-SRT, Sam Houston, Texas
| | - Sarah K Shingleton
- U.S. Army Institute of Surgical Research, Army Burn Center, ATTN: MCMR-SRT, Sam Houston, Texas
| | - Kaitlin A Pruskowski
- U.S. Army Institute of Surgical Research, Army Burn Center, ATTN: MCMR-SRT, Sam Houston, Texas
| | - Ashley Welsh
- U.S. Army Institute of Surgical Research, Army Burn Center, ATTN: MCMR-SRT, Sam Houston, Texas
| | - Julie A Rizzo
- U.S. Army Institute of Surgical Research, Army Burn Center, ATTN: MCMR-SRT, Sam Houston, Texas
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38
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Rizzo JA, Ross E, Ostrowski ML, Gomez BG, Aden JK, Cap AP. Intraoperative blood transfusions in burn patients. Transfusion 2021; 61 Suppl 1:S183-S187. [PMID: 34269462 DOI: 10.1111/trf.16505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Donated blood is a valuable and limited resource. Excision of burn wounds often leads to significant blood loss requiring transfusion. Accurately estimating blood loss is difficult, so examining the amount of blood products given intraoperatively is a clinically relevant way to measure utilization of this valuable resource. In this study, we examined the factors that influenced the amount of blood given intraoperatively during burn wound excisions. STUDY DESIGN AND METHODS A retrospective analysis of patients admitted to a single burn center over 5 years who underwent excision of their burn wounds and received intraoperative blood products was performed. Patient and burn characteristics as well as pertinent surgical data and laboratory values on the day of surgery and postoperatively were gathered. A linear regression analysis examined factors influencing the number of units of products given and a predictive model was generated. RESULTS A total of 563 operations performed on 166 patients were included. The amount of burn excised was the most influential variable on the amount of blood products given. Hemoglobin level, international normalized ratio, and platelet count on the day of surgery were associated with transfusion of different blood products. A predictive model was generated to aid in preoperative ordering of blood products. CONCLUSION The amount of burn excised and common hematology and coagulation lab values were associated with the amount of different blood products administered during burn surgery. The predictive model generated needs to be validated prospectively to aid in preoperative planning for burn excisions.
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Affiliation(s)
- Julie A Rizzo
- U.S. Army Institute of Surgical Research, Research Directorate, Fort Sam Houston, Texas, USA.,Department of Surgery, Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| | - Evan Ross
- U.S. Army Institute of Surgical Research, Research Directorate, Fort Sam Houston, Texas, USA
| | - Megan L Ostrowski
- Brooke Army Medical Center, Department of Surgery, Fort Sam Houston, San Antonio, Texas, USA
| | - Brian G Gomez
- Brooke Army Medical Center, Department of Surgery, Fort Sam Houston, San Antonio, Texas, USA
| | - James K Aden
- Brooke Army Medical Center, Department of Surgery, Fort Sam Houston, San Antonio, Texas, USA
| | - Andrew P Cap
- U.S. Army Institute of Surgical Research, Research Directorate, Fort Sam Houston, Texas, USA.,Department of Surgery, Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
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39
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Edwards TH, Rizzo JA, Pusateri AE. Hemorrhagic shock and hemostatic resuscitation in canine trauma. Transfusion 2021; 61 Suppl 1:S264-S274. [PMID: 34269447 DOI: 10.1111/trf.16516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 11/27/2022]
Abstract
Hemorrhage is a significant cause of death among military working dogs and in civilian canine trauma. While research specifically aimed at canine trauma is limited, many principles from human trauma resuscitation apply. Trauma with significant hemorrhage results in shock and inadequate oxygen delivery to tissues. This leads to aberrations in cellular metabolism, including anaerobic metabolism, decreased energy production, acidosis, cell swelling, and eventual cell death. Considering blood and endothelium as a single organ system, blood failure is a syndrome of endotheliopathy, coagulopathy, and platelet dysfunction. In severe cases following injury, blood failure develops and is induced by inadequate oxygen delivery in the presence of hemorrhage, tissue injury, and acute stress from trauma. Severe hemorrhagic shock is best treated with hemostatic resuscitation, wherein blood products are used to restore effective circulating volume and increase oxygen delivery to tissues without exacerbating blood failure. The principles of hemostatic resuscitation have been demonstrated in severely injured people and the authors propose an algorithm for applying this to canine patients. The use of plasma and whole blood to resuscitate severely injured canines while minimizing the use of crystalloids and colloids could prove instrumental in improving both mortality and morbidity. More work is needed to understand the canine patient that would benefit from hemostatic resuscitation, as well as to determine the optimal resuscitation strategy for these patients.
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Affiliation(s)
- Thomas H Edwards
- U.S. Army Institute of Surgical Research, Joint Base San Antonio - Fort Sam Houston, Texas, USA
| | - Julie A Rizzo
- U.S. Army Institute of Surgical Research, Joint Base San Antonio - Fort Sam Houston, Texas, USA.,Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| | - Anthony E Pusateri
- Naval Medical Research Unit San Antonio, Joint Base San Antonio - Fort Sam Houston, Texas, USA
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40
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Suresh MR, Staudt AM, Trevino JD, Valdez-Delgado KK, VanFosson CA, Rizzo JA. Characteristics of burn casualties treated at role 2 in Afghanistan. J Trauma Acute Care Surg 2021; 91:S233-S240. [PMID: 34324475 DOI: 10.1097/ta.0000000000003161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Role 2 medical treatment facilities (MTFs) are frequently located in austere settings and have limited resources. A dedicated assessment of burn casualties treated at this level of care has not been performed. Therefore, the objective of this study was to characterize burn casualties presenting to role 2 MTFs in Afghanistan, along with the procedures they required, complications, and mortality to begin understanding the resources consumed by their care. METHODS We identified burn casualties from the Department of Defense Trauma Registry (DODTR). The inclusion criteria were (1) experienced burn injuries in Afghanistan between October 2005 and April 2018 and (2) had documentation of treatment at role 2 in the DODTR. We excluded casualties with only first-degree burns, not otherwise specified burns, or only corneal burns. Casualty demographics, injury characteristics, procedures, and outcomes were reported. RESULTS We identified 453 burn casualties with a median (interquartile range) Injury Severity Score of 10 (4-22) and percent total body surface area burned of 11 (5-30). There were 123 casualties (27.2%) with inhalation injury, and the casualties experienced 3,343 additional traumatic injuries and needed 2,530 procedures. Casualties with documentation of resuscitation information received a median (interquartile range) of 1.9 (0.7-3.7) L of crystalloid fluids. Complications were documented in 53 casualties (11.7%). Final mortality was reported in 36 casualties (8.0%), and mortality at role 2 MTFs was reported in 7 casualties (1.5%). CONCLUSION Burn casualties had many injuries and needed many procedures, including those related to airway management, resuscitation, and wound care. Given the urgency of these procedures, ensuring that there is enough equipment and supplies will be important in the future. Although infrequent, some casualties experienced complications. Factors that may influence resuscitation include injury severity, concomitant traumatic injuries, and available supplies. Obtaining more contextual information on the patient care environment will be useful going forward. LEVEL OF EVIDENCE Epidemiological, level III.
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Affiliation(s)
- Mithun R Suresh
- From the United States Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
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41
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McGovern KP, Rizzo JA. Major Burn Injury Successfully Treated with Cultured Epithelial Autografts, a Case Series Presentation: Establishing Standard Clinical Practices. J Burn Care Res 2021; 44:709-714. [PMID: 34309679 DOI: 10.1093/jbcr/irab134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Indexed: 11/13/2022]
Abstract
Cultured epithelial autografts have been an option for coverage of large surface area burns for over two decades. However, there remains extreme variability in clinical practice in wound bed preparation, application of cultured epithelial autografts, and post-operative wound care and rehabilitation practices, demonstrating the need for a standardized and multidisciplinary approach in the treatment of critically injured patients treated with cultured epithelial autografts. The purpose of this case series was to share the development of a clinical practice guideline and competency checklist in our institution where cultured epithelial autograft case volume is low. In this case series, we examined the medical records of three patients treated with cultured epithelial autografts at a single burn center over a period from 2015-2018. Operating room times and fluid resuscitation volumes were examined on days when cultured epithelial autograft grafting was performed. In order to facilitate meticulous post-operative wound care in a facility where only 1-2 cultured epithelial autograft applications are performed per year, a clinical practice guideline and competency checklist were generated and trialed on a series of nurses and rehabilitation therapists for the three applications of cultured epithelial autografts. Amongst the patients treated with cultured epithelial autografts, the average TBSA burned was 71.6%. Less intra-operative crystalloid administration and faster operative case times were associated with improved cultured epithelial autograft success. The inclusion of the clinical practice guideline and checklist into our practice led to reported improved confidence in patient care, along with the successful outcomes of these cultured epithelial autograft applications.
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42
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Rizzo JA, Haq M, McMahon RA, Aden JK, Brillhart DB, Cancio LC. Extubation Failure in a Burn Intensive Care Unit: Examination of Contributing Factors. J Burn Care Res 2021; 42:177-181. [PMID: 32918478 DOI: 10.1093/jbcr/iraa162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Extubation failure is associated with negative outcomes making the identification of risk factors for failure paramount. Burn patients experience a high incidence of respiratory failure requiring mechanical ventilation. There is no consensus on the acceptable rate of extubation failure and many conventional indices do not accurately predict extubation outcomes in burn patients. The purpose of this study was to examine the rate of extubation failure in the burned population and to examine the impact of factors on extubation outcomes. Burn patients from a single center over 9 years were examined and included if they were intubated prior to arrival or within 48 hours of admission and underwent a planned extubation. From this cohort, a matched case-control analysis based on age, TBSA, and sex was performed of patients who succeeded after extubation, defined as not requiring reintubation within 72 hours, to those who failed. Characteristics and clinical parameters were compared to determine whether any factors could predict extubation failure. There was a 12.3% incidence of extubation failure. In the matched case-control analysis, the presence of inhalation injury was associated with extubation success. Higher heart rate and lower serum pH were associated with extubation failure. ANCOVA analysis demonstrated that a sodium trending higher before extubation was associated with more successes, possibly indicative of a lower volume status. Classic extubation criteria do not accurately predict extubation outcomes in burn patients; analysis of other parameters may be able to provide better predictions. A constellation of these parameters needs to be studied prospectively.
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Affiliation(s)
- Julie A Rizzo
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas.,Uniformed Services University of Health Sciences, Bethesda, Maryland
| | - Mahdi Haq
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas.,Metis Foundation, San Antonio Texas
| | - Ryan A McMahon
- Brooke Army Medical Center, Fort Sam Houston, Texas.,United States Army Medical Center of Excellence, Joint Base San Antonio, Texas
| | - James K Aden
- Brooke Army Medical Center, Fort Sam Houston, Texas
| | | | - Leopoldo C Cancio
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Stone R, Jockheck-Clark AR, Natesan S, Rizzo JA, Wienandt NA, Scott LL, Larson DA, Wall JT, Holik MA, Shaffer LJ, Park N, Jovanovic A, Tetens S, Roche ED, Shi L, Christy RJ. Enzymatic Debridement of Porcine Burn Wounds via a Novel Protease, SN514. J Burn Care Res 2020; 41:1015-1028. [PMID: 32615590 DOI: 10.1093/jbcr/iraa111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Necrotic tissue generated by a thermal injury is typically removed via surgical debridement. However, this procedure is commonly associated with blood loss and the removal of viable healthy tissue. For some patients and contexts such as extended care on the battlefield, it would be preferable to remove devitalized tissue with a nonsurgical debridement agent. In this paper, a proprietary debridement gel (SN514) was evaluated for the ability to debride both deep-partial thickness (DPT) and full-thickness burn wounds using an established porcine thermal injury model. Burn wounds were treated daily for 4 days and visualized with both digital imaging and laser speckle imaging. Strip biopsies were taken at the end of the procedure. Histological analyses confirmed a greater debridement of the porcine burn wounds by SN514 than the vehicle-treated controls. Laser speckle imaging detected significant increases in the perfusion status after 4 days of SN514 treatment on DPT wounds. Importantly, histological analyses and clinical observations suggest that SN514 gel treatment did not damage uninjured tissue as no edema, erythema, or inflammation was observed on intact skin surrounding the treated wounds. A blinded evaluation of the digital images by a burn surgeon indicated that SN514 debrided more necrotic tissue than the control groups after 1, 2, and 3 days of treatment. Additionally, SN514 gel was evaluated using an in vitro burn model that used human discarded skin. Treatment of human burned tissue with SN514 gel resulted in greater than 80% weight reduction compared with untreated samples. Together, these data demonstrate that SN514 gel is capable of debriding necrotic tissue and suggest that SN514 gel could be a useful option for austere conditions, such as military multi-domain operations and prolonged field care scenarios.
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Affiliation(s)
- Randolph Stone
- Department of Burn and Soft Tissue Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Angela R Jockheck-Clark
- Department of Burn and Soft Tissue Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Shanmugasundaram Natesan
- Department of Burn and Soft Tissue Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Julie A Rizzo
- US Army Burn Center, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Nathan A Wienandt
- Comparative Pathology, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Laura L Scott
- Epidemiology and Biostatistics, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - David A Larson
- Department of Burn and Soft Tissue Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - John T Wall
- Department of Burn and Soft Tissue Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Michelle A Holik
- Department of Burn and Soft Tissue Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Lucy J Shaffer
- Department of Burn and Soft Tissue Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Nancy Park
- Department of Burn and Soft Tissue Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Aleksa Jovanovic
- US Army Burn Center, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Shannon Tetens
- Department of Biologics and Regenerative Medicine, Sam Houston, Texas
| | - Eric D Roche
- Department of Biologics and Regenerative Medicine, Sam Houston, Texas
| | - Lei Shi
- Department of Biologics and Regenerative Medicine, Sam Houston, Texas
| | - Robert J Christy
- Department of Burn and Soft Tissue Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
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Bédard A, Antó JM, Fonseca JA, Arnavielhe S, Bachert C, Bedbrook A, Bindslev‐Jensen C, Bosnic‐Anticevich S, Cardona V, Cruz AA, Fokkens WJ, Garcia‐Aymerich J, Hellings PW, Ivancevich JC, Klimek L, Kuna P, Kvedariene V, Larenas‐Linnemann D, Melén E, Monti R, Mösges R, Mullol J, Papadopoulos NG, Pham‐Thi N, Samolinski B, Tomazic PV, Toppila‐Salmi S, Ventura MT, Yorgancioglu A, Bousquet J, Pfaar O, Basagaña X, Aberer W, Agache I, Akdis CA, Akdis M, Aliberti MR, Almeida R, Amat F, Angles R, Annesi‐Maesano I, Ansotegui IJ, Anto JM, Arnavielle S, Asayag E, Asarnoj A, Arshad H, Avolio F, Bacci E, Baiardini I, Barbara C, Barbagallo M, Baroni I, Barreto BA, Bateman ED, Bedolla‐Barajas M, Bewick M, Beghé B, Bel EH, Bergmann KC, Bennoor KS, Benson M, Bertorello L, Białoszewski AZ, Bieber T, Bialek S, Bjermer L, Blain H, Blasi F, Blua A, Bochenska Marciniak M, Bogus‐Buczynska I, Boner AL, Bonini M, Bonini S, Bosse I, Bouchard J, Boulet LP, Bourret R, Bousquet PJ, Braido F, Briedis V, Brightling CE, Brozek J, Bucca C, Buhl R, Buonaiuto R, Panaitescu C, Burguete Cabañas MT, Burte E, Bush A, Caballero‐Fonseca F, Caillaud D, Caimmi D, Calderon MA, Camargos PAM, Camuzat T, Canfora G, Canonica GW, Carlsen KH, Carreiro‐Martins P, Carriazo AM, Carr W, Cartier C, Casale T, Castellano G, Cecchi L, Cepeda AM, Chavannes NH, Chen Y, Chiron R, Chivato T, Chkhartishvili E, Chuchalin AG, Chung KF, Ciaravolo MM, Ciceran A, Cingi C, Ciprandi G, Carvalho Coehlo AC, Colas L, Colgan E, Coll J, Conforti D, Constantinidis J, Correia de Sousa J, Cortés‐Grimaldo RM, Corti F, Costa E, Costa‐Dominguez MC, Courbis AL, Cox L, Crescenzo M, Custovic A, Czarlewski W, Dahlen SE, D'Amato G, Dario C, da Silva J, Dauvilliers Y, Darsow U, De Blay F, De Carlo G, Dedeu T, de Fátima Emerson M, De Feo G, De Vries G, De Martino B, Motta Rubini NP, Deleanu D, Denburg JA, Devillier P, Di Capua Ercolano S, Di Carluccio N, Didier A, Dokic D, Dominguez‐Silva MG, Douagui H, Dray G, Dubakiene R, Durham SR, Du Toit G, Dykewicz MS, El‐Gamal Y, Eklund P, Eller E, Emuzyte R, Farrell J, Farsi A, Ferreira de Mello J, Ferrero J, Fink‐Wagner A, Fiocchi A, Fontaine JF, Forti S, Fuentes‐Perez JM, Gálvez‐Romero JL, Gamkrelidze A, García‐Cobas CY, Garcia‐Cruz MH, Gemicioğlu B, Genova S, Christoff G, Gereda JE, Gerth van Wijk R, Gomez RM, Gómez‐Vera J, González Diaz S, Gotua M, Grisle I, Guidacci M, Guldemond NA, Gutter Z, Guzmán MA, Haahtela T, Hajjam J, Hernández L, Hourihane JO, Huerta‐Villalobos YR, Humbert M, Iaccarino G, Illario M, Ispayeva Z, Jares EJ, Jassem E, Johnston SL, Joos G, Jung KS, Just J, Jutel M, Kaidashev I, Kalayci O, Kalyoncu AF, Karjalainen J, Kardas P, Keil T, Keith PK, Khaitov M, Khaltaev N, Kleine‐Tebbe J, Kowalski ML, Kuitunen M, Kull I, Kupczyk M, Krzych‐Fałta E, Lacwik P, Laune D, Lauri D, Lavrut J, Le LTT, Lessa M, Levato G, Li J, Lieberman P, Lipiec A, Lipworth B, Lodrup Carlsen KC, Louis R, Lourenço O, Luna‐Pech JA, Magnan A, Mahboub B, Maier D, Mair A, Majer I, Malva J, Mandajieva E, Manning P, De Manuel Keenoy E, Marshall GD, Masjedi MR, Maspero JF, Mathieu‐Dupas E, Matta Campos JJ, Matos AL, Maurer M, Mavale‐Manuel S, Mayora O, Meco C, Medina‐Avalos MA, Melo‐Gomes E, Meltzer EO, Menditto E, Mercier J, Miculinic N, Mihaltan F, Milenkovic B, Moda G, Mogica‐Martinez MD, Mohammad Y, Momas I, Montefort S, Mora Bogado D, Morais‐Almeida M, Morato‐Castro FF, Mota‐Pinto A, Moura Santo P, Münter L, Muraro A, Murray R, Naclerio R, Nadif R, Nalin M, Napoli L, Namazova‐Baranova L, Neffen H, Niedeberger V, Nekam K, Neou A, Nieto A, Nogueira‐Silva L, Nogues M, Novellino E, Nyembue TD, O'Hehir RE, Odzhakova C, Ohta K, Okamoto Y, Okubo K, Onorato GL, Ortega Cisneros M, Ouedraogo S, Pali‐Schöll I, Palkonen S, Panzner P, Park HS, Papi A, Passalacqua G, Paulino E, Pawankar R, Pedersen S, Pépin JL, Pereira AM, Persico M, Phillips J, Picard R, Pigearias B, Pin I, Pitsios C, Plavec D, Pohl W, Popov TA, Portejoie F, Potter P, Pozzi AC, Price D, Prokopakis EP, Puy R, Pugin B, Pulido Ross RE, Przemecka M, Rabe KF, Raciborski F, Rajabian‐Soderlund R, Reitsma S, Ribeirinho I, Rimmer J, Rivero‐Yeverino D, Rizzo JA, Rizzo MC, Robalo‐Cordeiro C, Rodenas F, Rodo X, Rodriguez Gonzalez M, Rodriguez‐Mañas L, Rolland C, Rodrigues Valle S, Roman Rodriguez M, Romano A, Rodriguez‐Zagal E, Rolla G, Roller‐Wirnsberger RE, Romano M, Rosado‐Pinto J, Rosario N, Rottem M, Ryan D, Sagara H, Salimäki J, Sanchez‐Borges M, Sastre‐Dominguez J, Scadding GK, Schunemann HJ, Scichilone N, Schmid‐Grendelmeier P, Sarquis Serpa F, Shamai S, Sheikh A, Sierra M, Simons FER, Siroux V, Sisul JC, Skrindo I, Solé D, Somekh D, Sondermann M, Sooronbaev T, Sova M, Sorensen M, Sorlini M, Spranger O, Stellato C, Stelmach R, Stukas R, Sunyer J, Strozek J, Szylling A, Tebyriçá JN, Thibaudon M, To T, Todo‐Bom A, Trama U, Triggiani M, Suppli Ulrik C, Urrutia‐Pereira M, Valenta R, Valero A, Valiulis A, Valovirta E, van Eerd M, van Ganse E, van Hage M, Vandenplas O, Vezzani G, Vasankari T, Vatrella A, Verissimo MT, Viart F, Viegi G, Vicheva D, Vontetsianos T, Wagenmann M, Walker S, Wallace D, Wang DY, Waserman S, Werfel T, Westman M, Wickman M, Williams DM, Williams S, Wilson N, Wright J, Wroczynski P, Yakovliev P, Yawn BP, Yiallouros PK, Yusuf OM, Zar HJ, Zhang L, Zhong N, Zernotti ME, Zhanat I, Zidarn M, Zuberbier T, Zubrinich C, Zurkuhlen A. Correlation between work impairment, scores of rhinitis severity and asthma using the MASK-air ® App. Allergy 2020; 75:1672-1688. [PMID: 31995656 DOI: 10.1111/all.14204] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/23/2019] [Accepted: 12/05/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND In allergic rhinitis, a relevant outcome providing information on the effectiveness of interventions is needed. In MASK-air (Mobile Airways Sentinel Network), a visual analogue scale (VAS) for work is used as a relevant outcome. This study aimed to assess the performance of the work VAS work by comparing VAS work with other VAS measurements and symptom-medication scores obtained concurrently. METHODS All consecutive MASK-air users in 23 countries from 1 June 2016 to 31 October 2018 were included (14 189 users; 205 904 days). Geolocalized users self-assessed daily symptom control using the touchscreen functionality on their smart phone to click on VAS scores (ranging from 0 to 100) for overall symptoms (global), nose, eyes, asthma and work. Two symptom-medication scores were used: the modified EAACI CSMS score and the MASK control score for rhinitis. To assess data quality, the intra-individual response variability (IRV) index was calculated. RESULTS A strong correlation was observed between VAS work and other VAS. The highest levels for correlation with VAS work and variance explained in VAS work were found with VAS global, followed by VAS nose, eye and asthma. In comparison with VAS global, the mCSMS and MASK control score showed a lower correlation with VAS work. Results are unlikely to be explained by a low quality of data arising from repeated VAS measures. CONCLUSIONS VAS work correlates with other outcomes (VAS global, nose, eye and asthma) but less well with a symptom-medication score. VAS work should be considered as a potentially useful AR outcome in intervention studies.
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46
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Suresh MR, Rizzo JA, Sosnov JA, Stacey WN, Howard JT, Tercero JR, Babcock EH, Stewart IJ. Assessing the NephroCheck® Test System in Predicting the Risk of Death or Dialysis in Burn Patients. J Burn Care Res 2020; 41:633-639. [PMID: 31960038 DOI: 10.1093/jbcr/iraa008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Acute kidney injury (AKI) is associated with high mortality in burn patients. Urinary biomarkers can aid in the prediction of AKI and its consequences, such as death and the need for renal replacement therapy (RRT). The purpose of this study was to investigate a novel methodology for detecting urinary biomarkers, the NephroCheck® Test System, and assess its ability to predict death or the need for RRT in burn patients. Burn patients admitted to the United States Army Institute of Surgical Research (USAISR) burn intensive care unit were prospectively enrolled between March 2016 and April 2018. A urine sample was obtained from all study participants using the NephroCheck® system. Patient and injury characteristics were gathered, and descriptive statistics were calculated and multivariable logistic regression analyses were performed using these data. Of the 69 patients in this study, 15 patients (21.7%) attained the composite outcome of death or needing RRT within 30 days of urine collection. NephroCheck® scores were higher for patients with the composite outcome, with P = 0.06 for centrifuged scores and P = 0.04 for noncentrifuged scores. Centrifuged and noncentrifuged scores were in high agreement and correlation (R2 = 0.97, P < 0.0001). Noncentrifuged scores were significant in the unadjusted analysis, but they were not significant in the adjusted analysis. Although these scores had a lower sensitivity and negative predictive value compared with other parameters, they had the second highest specificity and positive predictive value. NephroCheck® scores were higher in burn patients with the composite outcome of death or needing RRT, and they demonstrated comparable sensitivity and specificity to creatinine and TBSA.
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Affiliation(s)
- Mithun R Suresh
- United States Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | - Julie A Rizzo
- United States Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas.,Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | | | - Winfred N Stacey
- Department of Clinical Investigation, Brooke Army Medical Center, JBSA Fort Sam Houston, Texas
| | - Jeffrey T Howard
- Department of Public Health, College for Health, Community and Policy, University of Texas at San Antonio, San Antonio, Texas.,Joint Trauma System, Defense Health Agency, United States Department of Defense, JBSA Fort Sam Houston, Texas
| | - Javance R Tercero
- United States Army Institute of Surgical Research, JBSA Fort Sam Houston, Texas
| | | | - Ian J Stewart
- Uniformed Services University of the Health Sciences, Bethesda, Maryland.,David Grant Medical Center, Travis Air Force Base, California
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Dewey WS, Cunningham KB, Shingleton SK, Pruskowski KA, Welsh AM, Rizzo JA. T2 Safety of Early Post-operative Range of Motion in Burn Patients with Newly Placed Hand Autografts. J Burn Care Res 2020. [DOI: 10.1093/jbcr/iraa024.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Introduction
Patients who suffer hand burns are at a high risk for developing contractures, partly due to the presence of numerous cutaneous functional units, or contracture risk areas, located within the hand.
Patients who undergo split-thickness skin grafting (STSG) are often immobilized post-operatively for graft protection. Restricting mobility following a STSG is thought to protect against subdermal edema and shear forces, despite limited evidence.
Early range of motion (EROM) has been described previously. Recent practice at our burn center includes EROM following hand STSG to limit unnecessary immobilization. The purpose of this retrospective study was to determine if EROM is safe to perform after hand STSG and if there is any clinical benefit.
Methods
In an approved, retrospective, matched case-control study of adult patients who sustained hand burns, patients who received EROM were defined as cases; patients who did not receive EROM were considered controls and received the standard 3–5 days of post-operative immobilization in a resting hand splint. Adult patients admitted over a 3-year period were eligible for inclusion. Patients were evaluated for graft loss and range of motion.
Results
Seventy-two patients were included in this study; 37 EROM patients and 35 matched controls. EROM patients tended to have a larger area excised (170.4 ± 69.8cm2 vs. 132.9 ± 76.2cm2; p=0.034) and grafted (171 ± 70.8 cm2 vs. 132.9 ± 76.2 cm2; p=0.033).
Most patients were male, with an average age of 39 years. Patients had an average of approximately 5% TBSA burns with 1.5% to the hands. On post-op day (POD) 1 and 2, patients received EROM for an average of 30 minutes (29.25 ± 14.9 vs. 31 ± 16.4 minutes).
Six patients experienced minor graft loss. Three patients (8%) experienced graft loss not attributable to EROM. One patient (2.7%) experienced graft loss pre-EROM on POD2 and 3 patients (8%) experienced graft loss post-EROM on either POD1 or POD2. All graft loss was less than 1 cm in greatest dimension and no patient who experienced graft loss required additional surgery as they all closed by their first outpatient follow-up. Significantly more patients who received EROM achieved full digital flexion by the first outpatient visit (25/27=92.6% vs. 15/22=68.2%; p=0.028).
Conclusions
Performing EROM does not cause an increase in graft loss. All areas of graft loss from the EROM group healed without intervention. There appears to be a benefit to EROM since there was a significant improvement in the patients’ ability to make a full fist at initial outpatient follow up. Further prospective analysis is needed to examine the true clinical utility of EROM in the hand and other contracture-prone areas.
Applicability of Research to Practice
Clinical change in post-operative management after hand grafting.
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Affiliation(s)
- William S Dewey
- U.S. Army Institute of Surgical Research, Burn Center, JBSA-Ft. Sam Houston, Texas
| | - Kyle B Cunningham
- U.S. Army Institute of Surgical Research, Burn Center, JBSA-Ft. Sam Houston, Texas
| | - Sarah K Shingleton
- U.S. Army Institute of Surgical Research, Burn Center, JBSA-Ft. Sam Houston, Texas
| | - Kaitlin A Pruskowski
- U.S. Army Institute of Surgical Research, Burn Center, JBSA-Ft. Sam Houston, Texas
| | - Ashley M Welsh
- U.S. Army Institute of Surgical Research, Burn Center, JBSA-Ft. Sam Houston, Texas
| | - Julie A Rizzo
- U.S. Army Institute of Surgical Research, Burn Center, JBSA-Ft. Sam Houston, Texas
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Holmes JH, Shupp JW, Smith DJ, Joe VC, Carson JS, Litt J, Kahn S, Short T, Cancio LC, Rizzo JA, Carter JE, Foster KN, Gibson A. T5 Preliminary Analysis of a Phase 3 Open-label, Controlled, Randomized Trial Evaluating the Efficacy and Safety of a Bioengineered Regenerative Skin Construct in Patients with Deep Partial-thickness Thermal Burns. J Burn Care Res 2020. [DOI: 10.1093/jbcr/iraa024.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Introduction
Autograft (AG) is the standard of care for treatment of severe burns. While AG provides effective wound closure (WC), the procedure creates a donor-site wound prone to dyspigmentation, infection, scarring, and pain. In a phase 1b trial, no deep partial-thickness (DPT) wound treated with a bioengineered regenerative skin construct (BRSC) required AG by Day 28 and WC at the BRSC site was achieved in 93% of patients by Month 3 (Holmes et al 2019). This phase 3 study evaluated the efficacy and safety of this BRSC in patients with DPT burns.
Methods
This phase 3 study (NCT03005106) enrolled patients aged ≥18 years with 3–49% total body surface area (TBSA) thermal burns on the torso or extremities. In each patient, two DPT areas (≤2,000 cm2 total) deemed comparable following excision were randomized to treatment with either cryopreserved BRSC or AG. Coprimary endpoints were 1) the difference in percent area of BRSC treatment site and AG treatment site autografted at 3 months and 2) the proportion of patients achieving durable WC of the BRSC treatment site without AG at 3 months. Safety assessments were performed in all patients. Efficacy was analyzed at 3 months and safety and scar follow-up continues to one year.
Results
A total of 71 patients were enrolled (mean [SD] age 44 [16] years; mean [SD] %TBSA 12.0 [8.4]). By Month 3, 4.3% (SD 21.6%) of all BRSC-treated area required AG compared with an additional regrafting of 2.1% of all AG-treated area (total 102.1% SD 13.1%; P< .0001). Three patients subsequently required AG at their BRSC site, 2 of whom also required it at their AG sites; Durable WC without autografting at the BRSC treatment site was achieved at Month 3 in 83% of patients compared with 86% of patients at the AG site. The most common BRSC-related adverse event (AE) was pruritus, occurring in 11 (15%) patients. All BRSC-related AEs were mild or moderate in severity.
Conclusions
This phase 3 study achieved both coprimary endpoints, including significant autograft sparing and durable WC in DPT burns. This BRSC may offer a new treatment for severe burns to reduce or eliminate the need for AG.
Applicability of Research to Practice
This BRSC has shown clinical benefit in patients with DPT thermal burns, potentially mitigating donor site morbidity.
External Funding
Stratatech, a Mallinckrodt Company; Funding and technical support for the Phase 3 clinical study were provided by the Biomedical Advanced Research and Development Authority (BARDA), under the Assistant Secretary for Preparedness and Response, within the U.S. Department of Health and Human Services, under Project BioShield Contract No. HHSO100201500027C.
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Affiliation(s)
- James H Holmes
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Jeffrey W Shupp
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - David J Smith
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Victor C Joe
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Joshua S Carson
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Jeffrey Litt
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Steven Kahn
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Tracee Short
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Leopoldo C Cancio
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Julie A Rizzo
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Jeffrey E Carter
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Kevin N Foster
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
| | - Angela Gibson
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina; Department of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC; 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 S
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Cambiaso-Daniel J, Parry I, Rivas E, Kemp-Offenberg J, Sen S, Rizzo JA, Serghiou MA, Kowalske K, Wolf SE, Herndon DN, Suman OE. Strength and Cardiorespiratory Exercise Rehabilitation for Severely Burned Patients During Intensive Care Units: A Survey of Practice. J Burn Care Res 2020; 39:897-901. [PMID: 29579311 DOI: 10.1093/jbcr/iry002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Minimizing the deconditioning of burn injury through early rehabilitation programs (RP) in the intensive care unit (ICU) is of importance for improving the recovery time. The aim of this study was to assess current standard of care (SOC) for early ICU exercise programs in major burn centers. We designed a survey investigating exercise RP on the ICU for burn patients with >30% total burned surface area. The survey was composed of 23 questions and submitted electronically via SurveyMonkey® to six major (pediatric and adult) burn centers in Texas and California. All centers responded and reported exercise as part of their RP on the ICU. The characteristics of exercises implemented were not uniform. All centers reported to perform resistive and aerobic exercises but only 83% reported isotonic and isometric exercises. Determination of intensity of exercise varied with 50% of centers using patient tolerance and 17% using vital signs. Frequency of isotonic, isometric, aerobic, and resistive exercise was reported as daily by 80%, 80%, 83%, and 50% of centers, respectively. Duration for all types of exercises was extremely variable. Mobilization was used as a form of exercise by 100% of burn centers. Our results demonstrate that although early RP seem to be integral during burn survivor's ICU stay, no SOC exists. Moreover, early RP are inconsistently administered and large variations exist in frequency, intensity, duration, and type of exercise. Thus, future prospective studies investigating the various components of exercise interventions are needed to establish a SOC and determine how and if early exercise benefits the burn survivor.
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Affiliation(s)
- Janos Cambiaso-Daniel
- Department of Surgery, University of Texas Medical Branch and Shriners Hospitals for Children, Galveston, Texas.,Department of Surgery, Division of Plastic, Aesthetic and Reconstructive Surgery, Medical University of Graz, Austria
| | - Ingrid Parry
- Shriners Hospitals for Children, Northern California, Sacramento, California
| | - Eric Rivas
- Department of Surgery, University of Texas Medical Branch and Shriners Hospitals for Children, Galveston, Texas.,Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, Texas
| | - Jennifer Kemp-Offenberg
- Department of Surgery, University of Texas Medical Branch and Shriners Hospitals for Children, Galveston, Texas
| | - Soman Sen
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, Texas.,Department of Surgery, Division for Burn Surgery, University of California, Davis, California
| | - Julie A Rizzo
- The United States Army Institute of Surgical Research, San Antonio, Texas.,Uniformed Services University of Health Sciences, Bethesda MD
| | | | - Karen Kowalske
- University of Texas Southwest Medical Center, Dallas, Texas
| | - Steven E Wolf
- University of Texas Southwest Medical Center, Dallas, Texas
| | - David N Herndon
- Department of Surgery, University of Texas Medical Branch and Shriners Hospitals for Children, Galveston, Texas
| | - Oscar E Suman
- Department of Surgery, University of Texas Medical Branch and Shriners Hospitals for Children, Galveston, Texas
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50
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Suresh M, Pruskowski KA, Rizzo JA, Gurney JM, Cancio LC. Characteristics and outcomes of patients with inhalation injury treated at a military burn center during U.S. combat operations. Burns 2020; 46:454-458. [DOI: 10.1016/j.burns.2019.08.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 11/26/2022]
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