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J Trauma Acute Care Surg [JOURNAL]

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Combined N-acetylcysteine and tranexamic acid attenuate acidosis and fibrinolysis in a swine polytrauma model.

Cardoso JMDF, Ferreira RV, Rasslan R … +4 more , Otsuki DA, Utiyama EM, Montero EFS, São Paulo, Brazil

J Trauma Acute Care Surg · 2026 Mar · PMID 41870350 · Publisher ↗

BACKGROUND: Traumatic coagulopathy is a major contributor to mortality after severe hemorrhage. Tranexamic acid (TXA) reduces fibrinolysis, and N-acetylcysteine (NAC) has antioxidant and anti-inflammatory properties. Bot... BACKGROUND: Traumatic coagulopathy is a major contributor to mortality after severe hemorrhage. Tranexamic acid (TXA) reduces fibrinolysis, and N-acetylcysteine (NAC) has antioxidant and anti-inflammatory properties. Both agents have shown benefit individually, but their combined effect has not been previously investigated in trauma. We hypothesized that early administration of NAC with TXA during resuscitation could attenuate acidosis and fibrinolysis in an experimental study with a hemorrhagic shock and polytrauma swine model. METHODS: Thirty-six male Landrace pigs (28.3 ± 3.0 kg) were randomized into five groups: Sham (n = 5), Ringer lactate (n = 5), NAC (n = 6), TXA (n = 6), and NAC+TXA (n = 6). Animals underwent experimental standardized polytrauma (femur fracture, controlled hemorrhage of 60% blood volume), followed by immediate resuscitation and a grade IV liver injury. Standard physiological parameters, blood gases, lactate, coagulation tests, fibrinogen, and thromboelastometry (ROTEM parameters) were assessed at baseline, post-shock, post-resuscitation, post-liver injury, and final. RESULTS: All trauma groups developed profound shock physiology compared with Sham. The NAC+TXA group demonstrated the most complete correction of acid-base status, achieving the highest final pH (7.5 ± 0.03), significantly greater than Ringer lactate (7.3 ± 0.09), NAC (7.3 ± 0.06), and TXA (7.3±0.11) (P = 0.001). Lactate and base deficit showed directionally similar improvements.Thromboelastometry showed attenuated fibrinolysis with combined therapy. The NAC+TXA group exhibited lower maximum lysis after liver injury compared with NAC (10 ± 3% vs 16 ± 4%, P = .008). Other ROTEM parameters displayed directionally similar trends toward improved clot formation. CONCLUSIONS: In this swine polytrauma model, the combined administration of NAC and TXA was associated with improved in acid-base status and attenuation of fibrinolysis. While these physiological effects are preliminary, they support additional experimental investigations to clarify mechanisms, reproducibility, and potential translational relevance of NAC+TXA as an adjunct in damage control resuscitation. (J Trauma Acute Care Surg. 2026;00:00-00. Copyright © 2026 Wolters Kluwer Health, Inc. All rights reserved. LEVEL OF EVIDENCE: Experimental animal study.

Artificial intelligence literacy and infectious diseases competency: Essential considerations for future revisions of the surgical critical care curriculum.

Barie PS, Kewalramani D, Narayan M

J Trauma Acute Care Surg · 2026 Jul · PMID 41870347 · Publisher ↗

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Every hour counts: Venous thromboembolism prophylaxis after spinal trauma.

Campbell A, Rubsamen M, Adkins R … +9 more , Sparling K, Brown E, Tatum D, Harrell K, Zhang J, McGinness C, Shammassian B, Taghavi S, New Orleans, Louisiana

J Trauma Acute Care Surg · 2026 Mar · PMID 41860430 · Publisher ↗

BACKGROUND: Spinal trauma patients are at risk for venous thromboembolism (VTE) due to immobility, endothelial injury, and hypercoagulability. Guidelines recommend initiating VTE prophylaxis (VTEp) 24 to 72 hours after i... BACKGROUND: Spinal trauma patients are at risk for venous thromboembolism (VTE) due to immobility, endothelial injury, and hypercoagulability. Guidelines recommend initiating VTE prophylaxis (VTEp) 24 to 72 hours after injury, but optimal timing remains uncertain. We investigated the optimal time to administer VTEp in patients with isolated, blunt spinal trauma (IBST) requiring surgery and hypothesized that early VTEp would be associated with fewer VTE events. METHODS: This observational study included patients 16 years old or above with IBST (Abbreviated Injury Scale-Spine ≥3, ≤2 for other regions) who required surgery within the TQIP database (2018-2022). The time from admission to VTEp initiation was evaluated in 4 categories: no VTEp, early VTEp (<24 h), intermediate VTEp (24-72 h), and late VTEp (>72 h). Multivariate logistic regression evaluated the relationship between VTEp timing and incidents of VTE or in-hospital mortality, adjusting for age, injury severity score, Abbreviated Injury Scale-Spine, injury type/region, and pharmacologic agent. The primary exposure was VTEp timing. Outcomes included VTE events and in-hospital mortality. RESULTS: Of 46,868 IBST patients who underwent surgery, 35,367 (75.5%) received pharmacologic VTEp. There were 1,246 VTE events (2.6%) and 1,243 deaths (2.7%). On multivariate analysis, early VTEp was associated with lower odds of VTE compared with intermediate VTEp and late VTEp, respectively (OR: 1.40, 95% CI: 1.15-1.73, p=0.001; OR: 1.97, 95% CI: 1.61-2.43, p<0.001). When time was measured continuously, each hour of delay increased the odds of VTE by 0.2% (p<0.001). CONCLUSIONS: Preoperative initiation of VTEp in operatively managed spinal trauma patients was associated with reduced mortality. Delays in VTEp increased the odds of both VTE events and mortality. These findings support early pharmacologic VTEp in this high-risk population. (J Trauma Acute Care Surg. 2026;00:00-00. Copyright © 2026 The Author(s). Published by Wolters Kluwer Health, Inc. All rights reserved). LEVEL OF EVIDENCE: Level III.

Extremity hemorrhage control in urban warfare: A retrospective analysis of the Swords of Iron War.

Epstein D, Kvint O, Shlaifer A … +8 more , Radomislensky I, Talmy T, Akler D, Eidelman P, Bendor CD, Shapira S, Nadler R, Haifa, Israel

J Trauma Acute Care Surg · 2026 Mar · PMID 41860429 · Publisher ↗

BACKGROUND: Tourniquets are a life-saving intervention for controlling life-threatening extremity hemorrhage. However, prolonged tourniquet application can lead to significant morbidity. This study aimed to assess tourni... BACKGROUND: Tourniquets are a life-saving intervention for controlling life-threatening extremity hemorrhage. However, prolonged tourniquet application can lead to significant morbidity. This study aimed to assess tourniquet usage among military personnel in modern urban warfare and evaluate the proportion of cases potentially suitable for tourniquet conversion. METHODS: This was a retrospective cohort analysis of all Israeli military casualties hospitalized between October 27, 2023, and November 30, 2024, with war-related injuries during the Hamas-Israel War. Data were obtained from the prehospital trauma registry and the Israel National Trauma Registry. The study population comprised hospitalized soldiers who were treated with tourniquets during the prehospital phase. The primary outcome was "nonconvertible tourniquets," defined by the presence of vascular injury and/or the need for early limb amputation. A logistic regression was applied to identify injury-related factors independently associated with nonconvertible tourniquets. RESULTS: Of 2,127 hospitalized patients, 589 (27.7%) were treated with prehospital tourniquets. Vascular injuries were diagnosed in 106 patients (18.0%), and 54 patients (9.2%) required early limb amputation. In total, 144 of 589 casualties (24.4%) had injuries that prevented prehospital tourniquet conversion. Factors associated with nonconvertible tourniquets included the presence of hemorrhagic shock (adjusted odds ratio=3.79, 95% confidence interval=2.44-5.92, p<0.001) and tourniquet application by an Advanced Trauma Life Support (ATLS) provider (adjusted odds ratio=1.55, 95% confidence interval=1.03-2.32, p=0.035). CONCLUSIONS: Most tourniquets applied in tactical situations can potentially be converted to other hemorrhage control methods. However, particular caution is warranted in patients presenting with hemorrhagic shock or when tourniquets are applied by ATLS providers. Prehospital trauma training programs should emphasize not only the rapid application of tourniquets but also the effective identification and conversion of medically unnecessary tourniquets to minimize limb ischemia and associated complications. (J TraumaAcute Care Surg. 2026;00:00-00. Copyright © 2026 Wolters Kluwer Health, Inc. All rights reserved.). LEVEL OF EVIDENCE: Therapeutic/Care Management; Level III.

Dose-dependent effects of intrabronchially administered exogenous surfactant in a porcine model of lung contusion.

Merkl T, Astapenko D, Štichhauer R … +12 more , Pejchal J, Dostál P, Radochová V, Páral J, Flašar J, Tichá A, Kraus P, Burešová Z, Bůšek V, Roudný V, Šafus A, Lochman P

J Trauma Acute Care Surg · 2026 Jul · PMID 41860388 · Publisher ↗

BACKGROUND: Surfactant dysfunction contributes to acute respiratory failure following lung contusion. Our experimental study aimed to determine whether exogenous surfactant administration improves regional ventilation an... BACKGROUND: Surfactant dysfunction contributes to acute respiratory failure following lung contusion. Our experimental study aimed to determine whether exogenous surfactant administration improves regional ventilation and gas exchange in a porcine model of lung contusion. METHODS: Lung contusion was induced in pigs (n=21) using a custom forceps instrument. Animals were randomized into three equal groups. The two treated groups received Curosurf® intrabronchially (5 mg/kg or 10 mg/kg) 30 minutes post-contusion, while the third group served as a control. Vital signs, blood gases, and regional tidal volume distribution via electrical impedance tomography (primary outcome) were monitored for 6 hours. RESULTS: A sustained improvement in regional ventilation of the contused lung region, accompanied by more efficient ventilation, evidenced by a lower ventilatory ratio and PaCO 2 , was observed in the 10 mg/kg group. A trend toward improvement in systemic oxygenation (PaO 2 at FiO 2 =1) was also noted in this group at later time points. The 5 mg/kg dose showed no significant effects. CONCLUSIONS: Early intrabronchial surfactant administration (10 mg/kg) was associated with improved regional ventilation and overall ventilation efficiency in the porcine lung contusion model. These findings suggest potential benefits for managing lung mechanics after severe chest trauma. ( J Trauma Acute Care Surg . 2026;101: 154-161. Copyright © 2026 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Association for the Surgery of Trauma.).

Sex-based differences in early neurological recovery after traumatic spinal cord injury.

Vattipally VN, Dewan A, Jillala RR … +11 more , Aude CA, Kramer P, Jo J, Hughes LP, Khalifeh JM, Lubelski D, Bydon A, Witham TF, Theodore N, Azad TD, Baltimore, Maryland

J Trauma Acute Care Surg · 2026 Jun · PMID 41860348 · Publisher ↗

BACKGROUND: Traumatic spinal cord injury (SCI) causes profound and lasting disability. Early neurological recovery, as captured by conversion in American Spinal Injury Association Impairment Scale (AIS) grade, is a key p... BACKGROUND: Traumatic spinal cord injury (SCI) causes profound and lasting disability. Early neurological recovery, as captured by conversion in American Spinal Injury Association Impairment Scale (AIS) grade, is a key prognostic indicator. While preclinical studies suggest sex-based neuroprotective mechanisms, the impact of biological sex on AIS conversion remains unclear. The objective of this study was to determine whether female sex is independently associated with increased odds of AIS conversion during hospitalization for SCI. METHODS: We conducted a retrospective cohort study using data from the Spinal Cord Injury Model Systems database (2012-2021). Patients with non-missing sex and AIS discharge data were included. The primary exposure was reported sex at admission, and the primary outcome was AIS conversion during hospitalization. Multivariable logistic regression models adjusted for demographic and clinical covariates, including age, mechanism of injury, multiple trauma, spinal surgery, and baseline AIS grade. Sensitivity analyses excluded patients with AIS grade A injuries and those ≥65 years of age. A propensity score-matched analysis was also performed. RESULTS: Among 7,910 patients (median age, 40 years; interquartile range, 26-56 years), 20% were female. Association Impairment Scale conversion occurred in 31% of patients. Female sex was independently associated with higher odds of AIS conversion (odds ratio, 1.23; 95% confidence interval, 1.07-1.42; p  = 0.004). This association remained significant across sensitivity analyses and after propensity score matching (odds ratio, 1.26; 95% confidence interval, 1.09-1.46; p  = 0.002). CONCLUSION: Female sex was independently associated with greater odds of early neurologic recovery after SCI, as measured by AIS conversion. These findings suggest biological or biomechanical differences may influence short-term SCI recovery and underscore the need for sex-informed approaches in SCI research and rehabilitation. ( J Trauma Acute Care Surg . 2026;100: 942-948. Copyright © 2025 Wolters Kluwer Health, Inc. All rights reserved.). LEVEL OF EVIDENCE: Retrospective Cohort Study; Level III.

Aortic cardiopulmonary resuscitation in trauma: Extracorporeal CPR with controlled reoxygenation outperforms resuscitative thoracotomy in a porcine model of exsanguination arrest.

Lackie M, Amberman K, Patterson K … +16 more , Mares J, Hutzler J, Tiwari N, Killingsworth Z, Snowden D, Green JT, Do W, Morrison J, Powell E, Radowsky J, Propper B, Haigney M, Bradley M, Burmeister D, Walker P, Bethesda, Maryland

J Trauma Acute Care Surg · 2026 Jun · PMID 41849574 · Publisher ↗

BACKGROUND: Exsanguination cardiac arrest (ECA) remains a formidable challenge in trauma surgery with a persistently dismal prognosis. Extracorporeal cardiopulmonary resuscitation (ECPR) has shown promise in medical card... BACKGROUND: Exsanguination cardiac arrest (ECA) remains a formidable challenge in trauma surgery with a persistently dismal prognosis. Extracorporeal cardiopulmonary resuscitation (ECPR) has shown promise in medical cardiac arrest and may translate to trauma. We hypothesized that aortic cardiopulmonary resuscitation in trauma (ACT)-a controlled ECPR approach aimed at mitigating reperfusion injury-would improve sustained return of spontaneous circulation (ROSC) compared with resuscitative thoracotomy (RT) in a porcine ECA model. METHODS: Twelve swine were bled to mean arterial pressure <20 mm Hg and end-tidal CO 2 <10 mm Hg for 1 minute, defining ECA. After 10 minutes of ECA, animals received one of two pre-assigned interventions: (1) control with RT, aortic cross-clamp, open cardiac massage, intravenous whole blood transfusion, and 100% FiO 2 (n=6) or (2) ACT, involving venoarterial extracorporeal membrane oxygenation (VA-ECMO) with graded FiO 2 advancement and passive hypothermia (n=6). Both groups received a 30-minute resuscitation phase followed by a 90-minute critical care phase. The primary endpoint was ROSC-defined as mean arterial pressure >50 mm Hg with a sinus rhythm-at the end of the critical care period. Secondary outcomes included coronary and carotid flow to assess critical organ perfusion during resuscitation. RESULTS: The primary endpoint was achieved in 100% of ACT animals versus 0% of controls ( p <0.001). All subjects showed pulseless electrical activity during ECA; 6/6 controls developed ventricular fibrillation during resuscitation compared with 2/6 in ACT ( p =0.060). During the critical care phase, ACT led to increased mean left-anterior-descending coronary artery flow (41.6±0.2 mL/min vs. 31.7±0.6 mL/min in RT) and right carotid artery flow (214.8±0.5 mL/min vs. 90.7±1.0 mL/min, both p <0.0001). CONCLUSIONS: Following ECA, ACT produced a markedly higher rate of sustained ROSC compared with conventional RT and significantly augmented coronary and carotid perfusion-highlighting its potential as a trauma-focused ECPR modality. LEVEL OF EVIDENCE: Preclinical-large animal model.

Integrating pediatric psychology into a trauma follow-up clinic: A feasible model striving for universal behavioral health screening.

Mina AS, Pena-Ewers J, Jarr L … +4 more , Luong K, Pryor Ii HI, Cline VD, Houston, TX

J Trauma Acute Care Surg · 2026 Mar · PMID 41849538 · Publisher ↗

BACKGROUND: After an accidental injury, 20% to 40% of youth experience mental health challenges. Although the American College of Surgeons requires universal behavioral health screening in pediatric trauma centers, most... BACKGROUND: After an accidental injury, 20% to 40% of youth experience mental health challenges. Although the American College of Surgeons requires universal behavioral health screening in pediatric trauma centers, most lack formal processes. This initiative aimed to address this by integrating a pediatric psychologist into a multidisciplinary trauma follow-up clinic for holistic postdischarge care. METHODS: Over the course of 1 year at a pediatric trauma center, a psychologist joined a weekly outpatient clinic. After medical review by advanced practice providers, a warm hand-off was made to the psychologist. The intervention involved universal psychoeducation on trauma responses, coping skills instruction, and administration of validated screening tools (ASC-3, PHQ-2) for youth aged 7 and older. Services were billed using Health & Behavior codes linked to injury diagnosis. RESULTS: In 1 year, 503 follow-up appointments occurred. The pediatric psychologist met with 157 (31%) patients and families. While 48 youths screened positive, clinical consultation resulted in 42 referrals for mental health evaluation. Integration proved feasible, with visits averaging 20 minutes and causing minimal disruption to clinic flow. Only nine families declined screening, and anecdotal feedback was overwhelmingly positive. CONCLUSIONS: Integrating a pediatric psychologist into a busy surgical follow-up clinic is a feasible and effective model for fulfilling the ACS mandate for behavioral health screening. This collaborative approach ensures that both the physical and emotional recovery of injured youth are addressed, providing a replicable framework for other trauma centers aiming to deliver holistic care. (J Trauma Acute Care Surg. 2026;00:00-00. Copyright © 2026 The Author(s). Published by Wolters Kluwer Health, Inc. All rights reserved.). LEVEL OF EVIDENCE: Therapeutic/Care Management; Level IV.

Critical insights on hemorrhage control strategies in pelvic fracture patients.

Shareef U

J Trauma Acute Care Surg · 2026 Jun · PMID 41849451 · Publisher ↗

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From fellowship to the frontline: A survey of military trauma training experience by the Military Deployment Readiness Assessment of Fellowship Training (DRAFT) Task Force.

Dilday J, Baird E, Miner J … +11 more , Lammers D, Eckert M, Yelon JA, Armen S, Schreiber M, Holcomb JB, Flaherty S, Tadlock MD, Martin MJ, Gurney J, Milwaukee, WI

J Trauma Acute Care Surg · 2026 Mar · PMID 41849445 · Publisher ↗

BACKGROUND: Military trauma/surgical critical care (T/SCC) surgeons perform both clinical "inside-the-tent" (ITT) and leadership/administrative "outside-the-tent" (OTT) responsibilities during forward deployments. Despit... BACKGROUND: Military trauma/surgical critical care (T/SCC) surgeons perform both clinical "inside-the-tent" (ITT) and leadership/administrative "outside-the-tent" (OTT) responsibilities during forward deployments. Despite these demands, fellowship programs lack a standardized curriculum addressing the full spectrum of military-specific requirements. This study evaluates military T/SCC surgeons' perceptions of training quality, satisfaction, and confidence in managing deployment trauma situations, and readiness to assume leadership roles. METHODS: A survey was distributed to all current military T/SCC fellows and attendings to evaluate their perception of ITT and OTT skill training during fellowship. Respondents reported their satisfaction with fellowship training, as well as their confidence, satisfaction, and frequency with which they practiced on ITT and OTT skills. Attendings were additionally asked how often they utilized OTT skills and assumed key OTT leadership positions, such as unit commander or deputy commander, trauma director, or chief medical officer, during deployments. RESULTS: Ninety-four military T/SCC surgeons (80% attendings and 20% fellows) participated; 68% had deployed after fellowship. Confidence in core ITT skills, such as damage control surgery and resuscitation, was high (99% for both), but confidence was low for thoracic (58%) and complex liver trauma procedures (53%). Exposure to OTT domains-triage, systems, and tactical leadership-was limited; fewer than one-third of respondents reported frequent exposure or satisfaction with OTT training during fellowship. However, 84% of attendings frequently performed OTT functions during deployment. Previously deployed surgeons showed significantly greater confidence in disaster management (69% vs. 42%; p<0.05) and tactical decision-making (75% vs. 46%; p<0.05) OTT skills. CONCLUSIONS: While operative training was viewed favorably, many surgeons felt clinically confident but underprepared for deployment leadership roles. Greater OTT confidence among previously deployed surgeons suggests that operational experience-not fellowship training-currently drives proficiency. A military-specific curriculum is needed to prepare surgeons for leadership responsibilities in combat settings. (J Trauma Acute Care Surg. 2026;00:00-00. Copyright © 2026 Wolters Kluwer Health, Inc. All rights reserved.). LEVEL OF EVIDENCE: Prognostic/Epidemiological, Level IV.

Evidence-based, cost-effective management of perforated peptic ulcer disease: An algorithm of the Journal of Trauma and Acute Care Surgery Emergency General Surgery Algorithms Working Group.

Coimbra R, Biffl WL, Costantini TW … +7 more , Diaz JJ, Inaba K, Livingston DH, Napolitano L, Salim A, Winchell RJ, Moreno Valley, California

J Trauma Acute Care Surg · 2026 May · PMID 41849423 · Full text

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More than an algorithm: CAB as a shared responsibility.

Ferrada P

J Trauma Acute Care Surg · 2026 May · PMID 41849414 · Publisher ↗

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A bioabsorbable adhesive wrap for sutureless arterial repair: Initial development and preclinical testing in a rat model.

Nithianandam P, Hesek A, Steinmetz M … +5 more , Mills J, Liu R, Corao-Uribe D, Shaffer T, Blauvelt DG

J Trauma Acute Care Surg · 2026 Jul · PMID 41848395 · Full text

BACKGROUND: Traumatic arterial injuries are life-threatening if not surgically repaired. However, traditional suture repair can be complex, skill-dependent, time-consuming, and result in complications such as bleeding, a... BACKGROUND: Traumatic arterial injuries are life-threatening if not surgically repaired. However, traditional suture repair can be complex, skill-dependent, time-consuming, and result in complications such as bleeding, aneurysm, occlusion, and stenosis. We present a novel bioabsorbable adhesive wrap that seals arterial defects after traumatic injury, provides mechanical support during healing, and uses materials that degrade into nontoxic byproducts. METHODS: The wrap consists of a hydrogel patch to cover the defect, a rapidly UV-curable bioadhesive, and a U-shaped mold to localize the adhesive before curing. Mechanical performance was evaluated in polymer tubing and ex vivo porcine carotid arteries with ~2 mm defects. The wrap was also tested in vivo in a rat carotid artery injury model and studied for up to 4 weeks. Doppler ultrasound was used to monitor vascular patency and function over time. After 4 weeks, the wrapped vessel underwent histologic analysis to evaluate for inflammation and stenosis. The brain and liver were also analyzed for evidence of thromboembolism and toxicity. RESULTS: The adhesive wrap sealed arterial defects in <5 minutes without sutures. Mechanical testing demonstrated that the wrap was able to withstand pressure 10 times that of typical arterial pressures (Burst pressure: 1,017 ± 493 mm Hg, mean ± standard deviation, n=10). In the long-term in vivo rat cohort, there was an 87.5% survival rate. One early subject rat (12.5%) was euthanized due to a bleeding event before protocol optimization. Normal triphasic Doppler arterial flow was maintained in all rats. Partial stenosis developed in 25%, but no complete occlusion, thromboembolism, or organ toxicity was observed. CONCLUSIONS: The bioabsorbable adhesive wrap enables rapid, suture-free repair of arteries with strong mechanical sealing and excellent biocompatibility. This technology is a promising solution that may improve hemorrhage control in vascular trauma, especially in settings without specialized vascular surgery expertise. Further testing in large-animal models is warranted. ( J Trauma Acute Care Surg . 2026;101: 145-153. Copyright © 2026 Wolters Kluwer Health, Inc. All rights reserved.). STUDY TYPE: Laboratory and animal research.

Artificial intelligence for battlefield triage in large-scale combat operations: Opportunities, limits, and ethical considerations.

Mathais Q, Cungi PJ, Lamblin A … +3 more , Dubourg O, Bordes J, Boussen S

J Trauma Acute Care Surg · 2026 Mar · PMID 41805912 · Publisher ↗

Large-scale combat operations (LSCOs) impose major constraints on battlefield medical systems, combining sustained casualty inflow, degraded communications, prolonged evacuation timelines, and limited opportunities for r... Large-scale combat operations (LSCOs) impose major constraints on battlefield medical systems, combining sustained casualty inflow, degraded communications, prolonged evacuation timelines, and limited opportunities for repeated clinical reassessment. Under such conditions, conventional triage frameworks-designed for episodic assessment and rapid evacuation-become insufficient. This narrative review examines how artificial intelligence (AI) could support battlefield triage in LSCO, not as a replacement for clinical judgement, but to preserve situational awareness and prioritization over time when human vigilance alone is insufficient. Based on military medical, technological, and doctrinal literature, we analyze AI through three operational functions: extending caregiver perception, sustaining cognition under pressure, and enabling anticipatory and personalized decision-making. Near-term deployable capabilities include wearable physiological sensors, early warning systems, digital casualty documentation, and unmanned platforms supporting remote assessment, resupply, and evacuation coordination. Mid-term developments may integrate multimodal data fusion, predictive decision support, augmented reality-assisted guidance, and partial automation of prioritization. Longer-term conceptual frameworks, such as digital twins, envision fully predictive and individualized triage and resource allocation but remain at the research stage. We further examine the engineering, human, doctrinal, ethical and strategic constraints that govern AI deployment in LSCO, including DDIL environments, data quality, cognitive and ergonomic risks, automation bias, survivability concerns in a transparent battlefield and requirements for robust governance. Overall, the value of AI for triage in LSCO lies in human-machine teaming that sustains vigilance, coordination, and anticipation under extreme operational constraints, provided deployment remains disciplined, ethically governed, and operationally grounded. ( J Trauma Acute Care Surg . 2026;00:00-00. Copyright © 2026 Wolters Kluwer Health, Inc. All rights reserved.).

Evidence-based, cost-effective management of necrotizing soft tissue infection: An algorithm of the Journal of Trauma and Acute Care Surgery emergency general surgery algorithms work group.

Napolitano LM, Biffl WL, Costantini TW … +6 more , Diaz JJ, Inaba K, Livingston DH, Salim A, Winchell RJ, Coimbra R

J Trauma Acute Care Surg · 2026 Apr · PMID 41805701 · Publisher ↗

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Assessing readiness for large-scale combat operations across the full spectrum of medical and surgical capabilities.

Schmitt J, Pernod C, Mathais Q … +6 more , Aigle L, Bordes J, Arvieux C, Balandraud P, Pasquier P, Meaudre E

J Trauma Acute Care Surg · 2026 Feb · PMID 41745139 · Publisher ↗

BACKGROUND: Readiness for large-scale combat operations (LSCOs) remains a persistent challenge for military and civilian medical providers. This study assessed physicians' self-reported confidence in delivering damage-co... BACKGROUND: Readiness for large-scale combat operations (LSCOs) remains a persistent challenge for military and civilian medical providers. This study assessed physicians' self-reported confidence in delivering damage-control resuscitation and damage-control surgery in LSCOs scenarios and identified opportunities for improvement (OFIs). METHODS: A 40-item survey was distributed to all deployable Armed Forces' physicians (active duty, residents, reservists, contractors, and civilians) with military medical training. The survey explored confidence in performing lifesaving interventions across 15 tactical and medical scenarios and collected suggested OFIs. RESULTS: Of 2,145 eligible physicians, 474 (22%) responded: 51% active duty, 21.5% residents, and 18% reservists. The median time since graduation was 7 years (interquartile range, 1-13). Among respondents, 11% reported high confidence, 18% moderate, and 71% low. Compared with the low-confidence group, high-confidence physicians were older (median age, 40.0 vs. 34.0 years; p < 0.001), more often male (86.0% vs. 51.5%, p < 0.001), and more frequently reservists (30.0% vs. 15.5%, p = 0.005). Surgeons and anesthesiologists/intensivists were overrepresented in the high-confidence group ( p < 0.001). Daily clinical activity in trauma center level 1 facilities was more common among high-confidence physicians (62.7% vs. 27.5%, p < 0.001). Multivariate analysis identified significant associations between high confidence and performing lifesaving procedures both domestically and overseas (odds ratio [OR], 1.13; p < 0.001), being an anesthesiologist (OR, 9.56; p = 0.002), and the number of years after graduation (OR, 1.05; p = 0.044). Simulation-based training was the most frequently cited OFI, followed by regular clinical exposure in trauma centers and online interprofessional knowledge exchange. Key training needs identified included crew resource management, prolonged casualty care, and multiple-organ failure management. CONCLUSION: Confidence in damage-control resuscitation and damage-control surgery delivery during LSCOs remains limited. Structured, experiential, and specialty-specific training is essential to improve preparedness in deployed medical teams. LEVEL OF EVIDENCE: Prognostic and Epidemiological; Level IV.

AAST pancreatic organ injury grading subcomittee reply to: "Blunt pancreatic injury: Navigating the gray zones of imaging and surgery".

Notrica DM, Tominaga GT, Gross JA … +7 more , Southard RN, McOmber ME, Crandall M, Kozar R, Kaups KL, Schuster KM, Ball CG

J Trauma Acute Care Surg · 2026 Mar · PMID 41728880 · Publisher ↗

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Brain and body: Early decision making and outcomes for multiply injured patients with penetrating brain injury.

Meredyth N, Song J, Hatchimonji J … +6 more , Haddad D, Cannon J, Wathen C, Howard S, Schuster J, Kaufman E

J Trauma Acute Care Surg · 2026 Mar · PMID 41728879 · Publisher ↗

INTRODUCTION: For patients presenting with gunshots to the head and injuries to the neck or torso, head computed tomography (CT) provides essential information for prognosticating and managing brain injury but may delay... INTRODUCTION: For patients presenting with gunshots to the head and injuries to the neck or torso, head computed tomography (CT) provides essential information for prognosticating and managing brain injury but may delay hemorrhage (HRH) control. We hypothesized that use of preoperative head CT would be common, and clinicians would prioritize neuroimaging over prompt HRH control in patients with multiple penetrating injuries at high risk for HRH. METHODS: Using a statewide trauma database to identify patients who sustained gunshot wounds (2017-2021) with both penetrating brain injury and penetrating neck or torso injury, patients were characterized as high risk for HRH if they had systolic blood pressure <90 mm Hg, received ≥3 U of packed red blood cell every 4 hours, or required a massive transfusion protocol. Suspected severe traumatic brain injury was defined as Glasgow Coma Scale score of 3, or Glasgow Coma Scale score of ≤8 and abnormal pupils. We compared patient characteristics and outcomes using descriptive statistics. RESULTS: Of 1,094 patients, 428 (39.1%) were HRH. Of these, 287 (67.0%) went to CT from the trauma bay, and 91 (21.2%) went to the operating room (OR). Furthermore, 56.2% of HRH patients who went directly to the OR survived compared with 44.1% who went to CT prior to OR and 16.7% with CT only (p < 0.001). Of the 344 HRH patients (80.4%) who died, having a CT scan and no operation (25.4%) was associated with higher rates of organ donation. For the 84 HRH patients (19.6%) who survived, operative intervention was associated with better motor functional status at discharge. CONCLUSION: Patients with penetrating injury to the brain and torso often went to CT before the OR, even with high risk of HRH. Having a CT scan without any operation may result in increased organ donation, while forgoing imaging may decrease mortality and improve motor function at discharge. Decision making remains a challenge for these complex patients, but trauma surgeons should prioritize prompt intervention when feasible. LEVEL OF EVIDENCE: Therapeutic/Care Management; Level IV.

Access to primary care is associated with improved long-term survival after severe traumatic injury.

Yee EK, Little D, Mason SA … +7 more , Rosella LC, Jaakkimainen L, Zagorski BM, Postill G, Nathens AB, Tillmann BW, Haas B

J Trauma Acute Care Surg · 2026 Mar · PMID 41728878 · Publisher ↗

BACKGROUND: Survivors of severe traumatic injury remain at elevated risk of death in the years after injury. Little is known about how long-term mortality among injury survivors can be reduced. Given the importance of pr... BACKGROUND: Survivors of severe traumatic injury remain at elevated risk of death in the years after injury. Little is known about how long-term mortality among injury survivors can be reduced. Given the importance of primary care to overall health, we hypothesized that access to primary care would be associated with improved long-term survival among injury survivors. METHODS: This population-based, retrospective cohort study (2010-2022) included community-dwelling adults (18 years or older) discharged alive after a severe traumatic injury (Injury Severity Score, >15). The exposure of interest was access to primary care, defined as either visiting or being enrolled with a primary care physician in the 2 years prior to injury. The primary outcome was 5-year all-cause mortality. Cox proportional hazards models were used to evaluate the relationship between access to primary care and mortality, adjusting for sociodemographic characteristics, comorbidity, and injury severity. RESULTS: We identified 25,713 survivors of severe injury (mean age, 54 years; 32% female), of whom 92% (n = 23,720) had access to primary care. Five-year mortality was 13% (n = 3,265). Adjusting for patient characteristics, access to primary care was associated with a 20% lower hazard of death (hazard ratio, 0.80; 95% confidence interval, 0.68-0.93) at 5 years. The relationship between access to primary care and mortality was preserved across subgroups of age, sex, and comorbidity. CONCLUSION: Survivors of severe traumatic injury without access to primary care were more likely to die in the 5 years after discharge, identifying a vulnerable subset of the survivor population. Primary care physicians may represent key partners to trauma care providers in developing strategies that improve long-term outcomes in the years after injury. LEVEL OF EVIDENCE: Therapeutic/Care Management; Level IV.
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