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INTRODUCTION: Mass casualty events (MASCALs) in the combat environment, which involve large numbers of casualties that overwhelm immediately available resources, are fundamentally chaotic and dynamic and inherently dangerous. Formal triage systems use diagnostic algorithms, colored markers, and four or more named categories. We hypothesized that formal triage systems are inadequately trained and practiced and too complex to successfully implement in true MASCAL events. This retrospective analysis evaluates the real-world application of triage systems in prehospital military MASCALs and other aspects of MASCAL management. METHODS: We surveyed Special Operations Forces (SOF) medics known to us who have participated in military prehospital MASCALs and analyzed them. Aggregated data describing the scope of the incidents, the use of formal triage algorithms and colored markers, the number of categories, and the interventions on scene were analyzed using descriptive statistics, and lessons learned were consolidated. RESULTS: From 1996 to 2022 we identified 29 MASCALs that were managed by military medics in the prehospital setting. There was a median of three providers (range 1-85) and 15 casualties (range 6-519) per event. Four or more formal triage categories were used in only one event. Colored markers and formal algorithms were not used. Life-saving interventions were performed in 27 of 29 (93%) missions and blood transfusions were performed in four (17%) MASCALs. The top lessons learned were: 1) security and accountability are cornerstones of MASCAL management; 2) casualty movement is a priority; 3) intuitive triage categories are the default; 4)life-saving interventions are performed as time and tacticspermit. CONCLUSION: Formal triage systems requiring the use ofdiagnostic algorithms, colored tags, and four or five categories are seldom implemented in real-world military prehospitalMASCAL management. The training of field triage should besimplified and pragmatic, as exemplified by these instances.
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BACKGROUND: Extremity tourniquets have proven to be lifesaving in both civilian and military settings and should continue to be used by first responders for trauma patients with life-threatening extremity bleeding. This is especially true in combat scenarios in which both the casualty and the first responder may be confronted by the imminent threat of death from hostile fire as the extremity hemorrhage is being treated. Not every extremity wound, however, needs a tourniquet. One of the most important aspects of controlling life-threatening extremity bleeding with tourniquets is to recognize what magnitude of bleeding requires this intervention and what magnitude of bleeding does not. Multiple studies, both military and civilian, have shown that tourniquets are often applied when they are not medically indicated. Overuse of extremity tourniquets has not caused excess morbidity in either the recent conflicts in Iraq and Afghanistan or in the US urban civilian setting. In the presence of prolonged evacuation, however, applying a tourniquet when it is not medically indicated changes tourniquet application from being a lifesaving intervention to one that may cause an avoidable amputation and the development of an array of metabolic derangements and acute kidney injury collectively called prolonged tourniquet application syndrome. METHODS: The recent literature was reviewed for papers that documented the complications of tourniquet use resulting from the prolonged casualty evacuation times being seen in the current Russo-Ukrainian war. The literature was also reviewed for the incidence of tourniquet application that was found to not be medically indicated, in both the US civilian setting and from Ukraine. Finally, an in-person meeting of the US/Ukraine Tourniquet Working Group was held in Warsaw, Poland, in December of 2023. RESULTS: Unnecessary loss of extremities and life-threatening episodes of prolonged tourniquet application syndrome are currently occurring in Ukrainian combat forces because of nonindicated tourniquet use combined with the prolonged evacuation time seen in the Russo-Ukrainian war. Specific numbers of the complications experienced as a result of tourniquet use by Ukrainian forces in the current conflict are treated as classified information and are not available, but multiple sources from the Ukrainian military medical personnel and from the US advisors providing medical assistance to Ukraine have all agreed that the problem is substantial. CONCLUSION: Unnecessary tourniquet morbidity might also occur in US forces in a variety of potential future combat scenarios in which evacuation to surgical care is delayed. Prehospital trauma training programs, including but not limited to tactical combat casualty care, place insufficient emphasis on the need to avoid leaving tourniquets in place when they are not medically indicated. This aspect of training should receive emphasis in future Tactical Combat Casualty Care (TCCC) and civilian first responder curriculum development. An interim ad hoc training solution on this topic is available at the websites noted in this articles. Additional training modalities may follow in the near future. LEVEL OF EVIDENCE: Therapeutic/Care Management; Level V.
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Hemorragia , Torniquetes , Humanos , Hemorragia/terapia , Hemorragia/etiologia , Ucrânia , Lesões Relacionadas à Guerra/terapia , Guerra , Medicina Militar , Extremidades/irrigação sanguínea , Extremidades/lesõesRESUMO
BACKGROUND: High-grade liver injuries with extravasation (HGLI â+ âExtrav) are associated with morbidity/mortality. For low-grade injuries, an observation (OBS) first-strategy is beneficial over initial angiography (IR), however, it is unclear if OBS is safe for HGLI â+ âExtrav. Therefore, we evaluated the management of HGLI â+ âExtrav patients, hypothesizing IR patients will have decreased rates of operation and mortality. METHODS: HGLI â+ âExtrav patients managed with initial OBS or IR were included. The primary outcome was need for operation. Secondary outcomes included liver-related complications (LRCs) and mortality. RESULTS: From 59 patients, 23 (39.0%) were managed with OBS and 36 (61.0%) with IR. 75% of IR patients underwent angioembolization, whereas 13% of OBS patients underwent any IR, all undergoing angioembolization. IR patients had an increased rate of operation (13.9% vs. 0%, p â= â0.049), but no difference in LRCs (44.4% vs. 43.5%) or mortality (5.6% vs. 8.7%) versus OBS patients (both p â> â0.05). CONCLUSION: Over 60% of patients were managed with IR initially. IR patients had an increased rate of operation yet similar rates of LRCs and mortality, suggesting initial OBS reasonable in appropriately selected HGLI â+ âExtrav patients.
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Embolização Terapêutica , Extravasamento de Materiais Terapêuticos e Diagnósticos , Fígado , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Fígado/lesões , Fígado/diagnóstico por imagem , Embolização Terapêutica/métodos , Radiologia Intervencionista , Conduta Expectante , Estudos Retrospectivos , Angiografia , Idoso , Adulto , Meios de ContrasteRESUMO
Exsanguination remains the leading cause of preventable death among victims of trauma. For adult and pediatric trauma patients in the prehospital phase of care, methods to control hemorrhage and hemostatic resuscitation are described in this joint consensus opinion by the American College of Surgeons Committee on Trauma, the American College of Emergency Physicians, and the National Association of EMS Physicians.
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Serviços Médicos de Emergência , Hemostáticos , Adulto , Humanos , Criança , Serviços Médicos de Emergência/métodos , Hemorragia/terapia , Ressuscitação/métodos , ConsensoRESUMO
Ukrainian health care before 2021 was like that in comparable middle-income countries. The conflict with Russia over the last 8 months has added significant burden to the already resource-constrained system. We describe the current neurosurgical situation in Ukraine as well as remote and in-person efforts to provide needed assistance to Ukrainian neurosurgical colleagues.
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Atenção à Saúde , Humanos , Ucrânia , Federação RussaRESUMO
INTRODUCTION: The management of liver injuries in hemodynamically stable patients is variable and includes primary treatment strategies of observation (OBS), angiography (interventional radiology [IR]) with angioembolization (AE), or operative intervention (OR). We aimed to evaluate the management of patients with liver injuries with active extravasation on computed tomography (CT) imaging, hypothesizing that AE will have more complications without improving outcomes compared with OBS. METHODS: This is a prospective, multicenter, observational study. Patients who underwent CT within 2 hours after arrival with extravasation (e.g., blush) on imaging were included. Exclusion criteria included cirrhosis, nontraumatic hemorrhage, transfers from outside facilities, and pregnancy. No hemodynamic exclusion criteria were used. The primary outcome was liver-specific complications. Secondary outcomes include length of stay and mortality. Angioembolization patients were compared with patients treated without AE. Propensity score matching was used to match based on penetrating mechanism, liver injury severity, arrival vital signs, and early transfusion. RESULTS: Twenty-three centers enrolled 192 patients. Forty percent of patients (n = 77) were initially OBS. Eleven OBS patients (14%) failed nonoperative management and went to IR or OR. Sixty-one patients (32%) were managed with IR, and 42 (69%) of these had AE as an initial intervention. Fifty-four patients (28%) went to OR+/- IR. After propensity score matching (n = 34 per group), there was no difference in baseline characteristics between AE and OBS. The AE group experienced more complications with a higher rate of IR-placed drains for abscess or biloma (22% vs. 0%, p = 0.01) and an increased overall length of stay ( p = 0.01). No difference was noted in transfusions or mortality. CONCLUSION: Observation is highly effective with few requiring additional interventions. Angioembolization was associated with higher rate of secondary drain placement for abscesses or biloma. Given this, a trial of OBS and avoidance of empiric AE may be warranted in hemodynamically stable, liver-injured patient with extravasation on CT. LEVEL OF EVIDENCE: Therapeutic/Care Management; Level II.
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Embolização Terapêutica , Ferimentos não Penetrantes , Humanos , Estudos Prospectivos , Embolização Terapêutica/métodos , Ferimentos não Penetrantes/complicações , Fígado/diagnóstico por imagem , Fígado/lesões , Tomografia Computadorizada por Raios X , Estudos Retrospectivos , Escala de Gravidade do FerimentoRESUMO
BACKGROUND: Tourniquet use for extremity hemorrhage control has seen a recent increase in civilian usage. Previous retrospective studies demonstrated that tourniquets improve outcomes for major extremity trauma (MET). No prospective study has been conducted to date. The objective of this study was to evaluate outcomes in MET patients with prehospital tourniquet use. We hypothesized that prehospital tourniquet use in MET decreases the incidence of patients arriving to the trauma center in shock. METHODS: Data were collected prospectively for adult patients with MET at 26 Level I and 3 Level II trauma centers from 2015 to 2020. Limbs with tourniquets applied in the prehospital setting were included in the tourniquet group and limbs without prehospital tourniquets were enrolled in the control group. RESULTS: A total of 1,392 injured limbs were enrolled with 1,130 tourniquets, including 962 prehospital tourniquets. The control group consisted of 262 limbs without prehospital tourniquets and 88 with tourniquets placed upon hospital arrival. Prehospital improvised tourniquets were placed in 42 patients. Tourniquets effectively controlled bleeding in 87.7% of limbs. Tourniquet and control groups were similarly matched for demographics, Injury Severity Score, and prehospital vital signs (p > 0.05). Despite higher limb injury severity, patients in the tourniquet group were less likely to arrive in shock compared with the control group (13.0% vs. 17.4%, p = 0.04). The incidence of limb complications was not significantly higher in the tourniquet group (p > 0.05). CONCLUSION: This study is the first prospective analysis of prehospital tourniquet use for civilian extremity trauma. Prehospital tourniquet application was associated with decreased incidence of arrival in shock without increasing limb complications. We found widespread tourniquet use, high effectiveness, and a low number of improvised tourniquets. This study provides further evidence that tourniquets are being widely and safely adopted to improve outcomes in civilians with MET. LEVEL OF EVIDENCE: Therapeutic/Care Management; Level IV.
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Serviços Médicos de Emergência , Extremidades/lesões , Hemorragia/prevenção & controle , Torniquetes , Adulto , Hemorragia/etiologia , Hemorragia/terapia , Humanos , Estudos Prospectivos , Estudos Retrospectivos , Choque/prevenção & controle , Torniquetes/efeitos adversos , Centros de Traumatologia , Ferimentos e Lesões/complicaçõesRESUMO
BACKGROUND: Military data demonstrating an improved survival rate with whole blood (WB) have led to a shift toward the use of WB in civilian trauma. The purpose of this study is to compare a low-titer group O WB (LTOWB) massive transfusion protocol (MTP) to conventional blood component therapy (BCT) MTP in civilian trauma patients. METHODS: Trauma patients 15 years or older who had MTP activations from February 2019 to December 2020 were included. Patients with a LTOWB MTP activation were compared to BCT MTP patients from a historic cohort. RESULTS: 299 patients were identified, 169 received LTOWB and 130 received BCT. There were no differences in age, gender, or injury type. The Injury Severity Score was higher in the BCT group (27 vs 25, P = .006). The LTOWB group had a longer transport time (33 min vs 26 min, P < .001) and a lower arrival temperature (35.8 vs 36.1, P < .001). Other hemodynamic parameters were similar between the groups. The LTOWB group had a lower in-hospital mortality rate compared to the BCT group (19.5% vs 30.0%, P = .035). There were no differences in total transfusion volumes at 4 hours and 24 hours. No differences were seen in transfusion reactions or hospital complications. Multivariable logistic regression identified ISS, age, and 24-hour transfusion volume as predictors of mortality. DISCUSSION: Resuscitating severely injured trauma patient with LTOWB is safe and may be associated with an improved survival.
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Reação Transfusional , Ferimentos e Lesões , Adulto , Transfusão de Componentes Sanguíneos , Transfusão de Sangue/métodos , Humanos , Escala de Gravidade do Ferimento , Ressuscitação/métodos , Estudos Retrospectivos , Reação Transfusional/etiologia , Ferimentos e Lesões/etiologia , Ferimentos e Lesões/terapia , Adulto JovemRESUMO
BACKGROUND: Geriatric trauma rates are increasing, yet trauma centers often struggle to provide autonomy regarding decision making to these patients. Advance care planning can assist with this process. Currently, there are limited data on the impact of advance directives (ADs) in elderly trauma patients. The purpose of this study was to evaluate the prevalence of preinjury AD in geriatric trauma patients and its impact on outcomes, with the hypothesis that ADs would not be associated with an increase in mortality. METHODS: A multicenter retrospective review was conducted on patients older than 65 years with traumatic injury between 2017 and 2019. Three Level I trauma centers and one Level II trauma center were included. Exclusion criteria were readmission, burn injury, transfer to another facility, discharge from emergency department, and mortality prior to being admitted. RESULTS: There were 6,135 patients identified; 751 (12.2%) had a preinjury AD. Patients in the AD+ group were older (86 vs. 77 years, p < 0.0001), more likely to be women (67.0% vs. 54.8%, p < 0.0001), and had more comorbidities. Hospital length of stay and ventilator days were similar. In-hospital mortality occurred in 236 patients, and 75.4% of them underwent withdrawal of care (WOC). The mortality rate was higher in AD+ group (10.5% vs. 2.9%, p < 0.0001). No difference was seen in the rate of AD between the WOC+ and WOC- group (31.5% vs. 39.6%, p = 0.251). A preinjury AD was identified as an independent predictor of mortality, but not a predictor of WOC. CONCLUSION: Despite a high WOC rate in patients older than 65 years, most patients did not have an AD prior to injury. As the elderly trauma population grows, advance care planning should be better integrated into geriatric care to encourage a patient-centered approach to end-of-life care. LEVEL OF EVIDENCE: Prognostic and epidemiological, level IV.
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Diretivas Antecipadas , Ferimentos e Lesões/terapia , Idoso , Idoso de 80 Anos ou mais , Tomada de Decisões , Feminino , Mortalidade Hospitalar , Hospitalização/estatística & dados numéricos , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Respiração Artificial/estatística & dados numéricos , Estudos Retrospectivos , Assistência Terminal , Centros de Traumatologia , Ferimentos e Lesões/mortalidadeRESUMO
The literature continues to provide strong support for the early use of tranexamic acid (TXA) in severely injured trauma patients. Questions persist, however, regarding the optimal medical and tactical/logistical use, timing, and dose of this medication, both from the published TXA literature and from the TCCC user community. The use of TXA has been explored outside of trauma, new dosing strategies have been pursued, and expansion of retrospective use data has grown as well. These questions emphasize the need for a reexamination of TXA by the CoTCCC. The most significant updates to the TCCC Guidelines are (i) including significant traumatic brain injury (TBI) as an indication for TXA, (ii) changing the dosing protocol to a single 2g IV/IO administration, and (iii) recommending TXA administration via slow IV/IO push.
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Ácido Tranexâmico/uso terapêutico , Antifibrinolíticos/uso terapêutico , Humanos , Estudos RetrospectivosRESUMO
BACKGROUND: Indications for angioembolization (AE) following liver injury are not clearly defined. This study evaluated the outcomes and complications of hepatic AE. We hypothesize hepatic angioembolization is a useful adjunct to non-operative management of liver injury but with significant morbidity. METHODS: Subjects were identified utilizing trauma registries from centers in a regional trauma network from 2010 to 2017 with an Abbreviated Injury Scale (AIS) coded hepatic injury and an ICD9/10 for hepatic angiography (HA). RESULTS: 1319 patients with liver injuries were identified, with 30 (2.3%) patients undergoing HA: median ISS was 26, and median liver AIS was 4. Twenty-three subjects required AE. 81% had extravasation on CT from a liver injury. 63% underwent HA as initial intervention. 43% of AE subjects had liver-related complications with 35% 30-day readmission but with zero 30-day mortality. CONCLUSIONS: While there were zero reported deaths, a high rate of morbidity and readmission was found. This may be due to the angioembolization or the liver injury itself.
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Embolização Terapêutica/efeitos adversos , Embolização Terapêutica/métodos , Fígado/lesões , Readmissão do Paciente/estatística & dados numéricos , Adulto , Angiografia , Feminino , Artéria Hepática , Humanos , Fígado/irrigação sanguínea , Fígado/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Ferimentos e Lesões/terapia , Adulto JovemRESUMO
BACKGROUND: Patients' trauma burdens are a combination of anatomic damage, physiologic derangement, and the resultant depletion of reserve. Typically, Injury Severity Score (ISS) >15 defines major anatomic injury and Revised Trauma Score (RTS) <7.84 defines major physiologic derangement, but there is no standard definition for reserve. The Need For Trauma Intervention (NFTI) identifies severely depleted reserves (NFTI+) with emergent interventions and/or early mortality. We hypothesized NFTI would have stronger associations with outcomes and better model fit than ISS and RTS. METHODS: Thirty-eight adult and pediatric U.S. trauma centers submitted data for 88,488 encounters. Mixed models tested ISS greater than 15, RTS less than 7.84, and NFTI's associations with complications, survivors' discharge to continuing care, and survivors' length of stay (LOS). RESULTS: The NFTI had stronger associations with complications and LOS than ISS and RTS (odds ratios [99.5% confidence interval]: NFTI = 9.44 [8.46-10.53]; ISS = 5.94 [5.36-6.60], RTS = 4.79 [4.29-5.34]; LOS incidence rate ratios (99.5% confidence interval): NFTI = 3.15 [3.08-3.22], ISS = 2.87 [2.80-2.94], RTS = 2.37 [2.30-2.45]). NFTI was more strongly associated with continuing care discharge but not significantly more than ISS (relative risk [99.5% confidence interval]: NFTI = 2.59 [2.52-2.66], ISS = 2.51 [2.44-2.59], RTS = 2.37 [2.28-2.46]). Cross-validation revealed that in all cases NFTI's model provided a much better fit than ISS greater than 15 or RTS less than 7.84. CONCLUSION: In this multicenter study, NFTI had better model fit and stronger associations with the outcomes than ISS and RTS. By determining depletion of reserve via resource consumption, NFTI+ may be a better definition of major trauma than the standard definitions of ISS greater than 15 and RTS less than 7.84. Using NFTI may improve retrospective triage monitoring and statistical risk adjustments. LEVEL OF EVIDENCE: Prognostic, level IV.
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Escala de Gravidade do Ferimento , Índices de Gravidade do Trauma , Ferimentos e Lesões/classificação , Adolescente , Adulto , Fatores Etários , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Centros de Traumatologia/estatística & dados numéricos , Estados Unidos , Ferimentos e Lesões/diagnóstico , Ferimentos e Lesões/patologia , Ferimentos e Lesões/terapia , Adulto JovemRESUMO
TCCC has previously recommended interventions that can effectively prevent 4 of the top 5 causes of prehospital preventable death in combat casualties-extremity hemorrhage, junctional hemorrhage, airway obstruction, and tension pneumothorax- and deaths from these causes have been markedly reduced in US combat casualties. Noncompressible torso hemorrhage (NCTH) is the last remaining major cause of preventable death on the battlefield and often causes death within 30 minutes of wounding. Increased use of whole blood, including the capability for massive transfusion, if indicated, has the potential to increase survival in casualties with either thoracic and/or abdominopelvic hemorrhage. Additionally, Zone 1 Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) can provide temporary control of bleeding in the abdomen and pelvis and improve hemodynamics in casualties who may be approaching traumatic cardiac arrest as a result of hemorrhagic shock. Together, these two interventions are designated Advanced Resuscitative Care (ARC) and may enable casualties with severe NCTH to survive long enough to reach the care of a surgeon. Although Special Operations units are now using whole blood far-forward, this capability is not routinely present in other US combat units at this point in time. REBOA is not envisioned as care that could be accomplished by a unit medic working out of his or her aid bag. This intervention should be undertaken only by designated teams of advanced combat medical personnel with special training and equipment.
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Medicina Militar , Guias de Prática Clínica como Assunto , Ressuscitação , HumanosRESUMO
Care during mass casualty events (MCE) has improved during the last 15 years. Military and civilian collaboration has led to partnerships which augment the response to MCE. Much has been written about strategies to deliver care during an MCE, but there is little about how to transition back to normal operations after an event. A panel discussion entitled The Day(s) After: Lessons Learned from Trauma Team Management in the Aftermath of an Unexpected Mass Casualty Event at the 76th Annual American Association for the Surgery of Trauma meeting on September 13, 2017 brought together a cadre of military and civilian surgeons with experience in MCEs. The events described were the First Battle of Mogadishu (1993), the Second Battle of Fallujah (2004), the Bagram Detention Center Rocket Attack (2014), the Boston Marathon Bombing (2013), the Asiana Flight 214 Plane Crash (2013), the Baltimore Riots (2015), and the Orlando Pulse Night Club Shooting (2016). This article focuses on the lessons learned from military and civilian surgeons in the days after MCEs.
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This change to the Tactical Combat Casualty Care (TCCC) Guidelines that updates the recommendations for management of suspected tension pneumothorax for combat casualties in the prehospital setting does the following things: (1) Continues the aggressive approach to suspecting and treating tension pneumothorax based on mechanism of injury and respiratory distress that TCCC has advocated for in the past, as opposed to waiting until shock develops as a result of the tension pneumothorax before treating. The new wording does, however, emphasize that shock and cardiac arrest may ensue if the tension pneumothorax is not treated promptly. (2) Adds additional emphasis to the importance of the current TCCC recommendation to perform needle decompression (NDC) on both sides of the chest on a combat casualty with torso trauma who suffers a traumatic cardiac arrest before reaching a medical treatment facility. (3) Adds a 10-gauge, 3.25-in needle/ catheter unit as an alternative to the previously recommended 14-gauge, 3.25-in needle/catheter unit as recommended devices for needle decompression. (4) Designates the location at which NDC should be performed as either the lateral site (fifth intercostal space [ICS] at the anterior axillary line [AAL]) or the anterior site (second ICS at the midclavicular line [MCL]). For the reasons enumerated in the body of the change report, participants on the 14 December 2017 TCCC Working Group teleconference favored including both potential sites for NDC without specifying a preferred site. (5) Adds two key elements to the description of the NDC procedure: insert the needle/ catheter unit at a perpendicular angle to the chest wall all the way to the hub, then hold the needle/catheter unit in place for 5 to 10 seconds before removing the needle in order to allow for full decompression of the pleural space to occur. (6) Defines what constitutes a successful NDC, using specific metrics such as: an observed hiss of air escaping from the chest during the NDC procedure; a decrease in respiratory distress; an increase in hemoglobin oxygen saturation; and/or an improvement in signs of shock that may be present. (7) Recommends that only two needle decompressions be attempted before continuing on to the "Circulation" portion of the TCCC Guidelines. After two NDCs have been performed, the combat medical provider should proceed to the fourth element in the "MARCH" algorithm and evaluate/treat the casualty for shock as outlined in the Circulation section of the TCCC Guidelines. Eastridge's landmark 2012 report documented that noncompressible hemorrhage caused many more combat fatalities than tension pneumothorax.1 Since the manifestations of hemorrhagic shock and shock from tension pneumothorax may be similar, the TCCC Guidelines now recommend proceeding to treatment for hemorrhagic shock (when present) after two NDCs have been performed. (8) Adds a paragraph to the end of the Circulation section of the TCCC Guidelines that calls for consideration of untreated tension pneumothorax as a potential cause for shock that has not responded to fluid resuscitation. This is an important aspect of treating shock in combat casualties that was not presently addressed in the TCCC Guidelines. (9) Adds finger thoracostomy (simple thoracostomy) and chest tubes as additional treatment options to treat suspected tension pneumothorax when further treatment is deemed necessary after two unsuccessful NDC attempts-if the combat medical provider has the skills, experience, and authorizations to perform these advanced interventions and the casualty is in shock. These two more invasive procedures are recommended only when the casualty is in refractory shock, not as the initial treatment.
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Serviços Médicos de Emergência , Medicina Militar , Pneumotórax/terapia , Toracostomia , Humanos , Militares , Guias de Prática Clínica como Assunto , GuerraRESUMO
The Trauma Hemostasis and Oxygenation Research (THOR) Network has developed a consensus statement on the role of permissive hypotension in remote damage control resuscitation (RDCR). A summary of the evidence on permissive hypotension follows the THOR Network position on the topic. In RDCR, the burden of time in the care of the patients suffering from noncompressible hemorrhage affects outcomes. Despite the lack of published evidence, and based on clinical experience and expertise, it is the THOR Network's opinion that the increase in prehospital time leads to an increased burden of shock, which poses a greater risk to the patient than the risk of rebleeding due to slightly increased blood pressure, especially when blood products are available as part of prehospital resuscitation.The THOR Network's consensus statement is, "In a casualty with life-threatening hemorrhage, shock should be reversed as soon as possible using a blood-based HR fluid. Whole blood is preferred to blood components. As a part of this HR, the initial systolic blood pressure target should be 100 mm Hg. In RDCR, it is vital for higher echelon care providers to receive a casualty with sufficient physiologic reserve to survive definitive surgical hemostasis and aggressive resuscitation. The combined use of blood-based resuscitation and limiting systolic blood pressure is believed to be effective in promoting hemostasis and reversing shock".
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Hidratação/métodos , Ressuscitação/métodos , Ferimentos e Lesões/terapia , Pressão Sanguínea , Hidratação/normas , Humanos , Hipotensão/etiologia , Hipotensão/terapia , Ressuscitação/normas , Choque Hemorrágico/etiologia , Choque Hemorrágico/terapiaRESUMO
BACKGROUND: Damage control resuscitation principles advocate the use of blood to treat traumatic hemorrhage. Hemorrhage is a leading cause of preventable death on the battlefield, but making blood components available far forward presents logistical challenges due to shelf life and storage requirements. Whole blood simplifies logistics and enables collection in the field but can cause leukocyte-related transfusion reactions. A field-adapted leukoreduction system must be fast and safe, and storage of whole blood should preserve hemostatic function. METHODS: Blood was collected using Imuflex WB-SP and leukoreduced at 0, 150, or 300 mm Hg. Additional bags were stored at 4°C for 21 days unagitated, mixed daily, agitated or head-over-heel rotated, at 22°C for 3 days, or 32°C for 2 hours. Hematology, coagulation, CD62P/CD42b, thromboelastography (TEG)/thromboelastometry (ROTEM), and Multiplate was performed. RESULTS: Filtration time was 35 ± 1, 14 ± 0, and 9 ± 0 minutes at 0, 150, and 300 mm Hg, respectively. One of 10 units at 150 mm Hg and 4 of 11 at 300 mm Hg had residual whole blood cells greater than 5.0 × 10 per unit. One of 11 at 300 mm Hg had platelet recovery of less than 80%. Hemolysis was less than 0.2%. Filtration decreased thromboelastography/thromboelastometry and Multiplate aggregation response. Stored at 4°C, α and MA/MCF moderately decreased regardless of mixing. Significant loss of aggregation response and increased CD62P expression was seen by Day 10. By Day 3, storage at 22°C caused loss of most aggregation. Two-hour storage at 32°C did not significantly affect hemostatic capacity. CONCLUSION: Forced filtration reduced leukoreduction time, but increased residual whole blood cells reduced hemostatic function. Aggregation response deteriorated early in storage, while viscoelastic assays decreased more gradually. Mixing showed no benefits. LEVEL OF EVIDENCE: Diagnostic study, level IV.
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Coleta de Amostras Sanguíneas , Transfusão de Sangue/métodos , Hemostasia , Procedimentos de Redução de Leucócitos , Contagem de Células Sanguíneas , Preservação de Sangue/efeitos adversos , Preservação de Sangue/métodos , Coleta de Amostras Sanguíneas/efeitos adversos , Exsanguinação/terapia , Feminino , Flores , Hematócrito , Hemofiltração/métodos , Hemoglobinas/análise , Temperatura Alta/efeitos adversos , Humanos , Procedimentos de Redução de Leucócitos/métodos , Masculino , Medicina Militar/métodos , Agregação Plaquetária , TromboelastografiaRESUMO
BACKGROUND: Emergency general surgery outcomes vary widely across the United States. The utilization of quality indicators can reduce variation and assist providers in administering care aligned with established recommendations. Previous quality indicators have not focused on emergency general surgery patients. We identified indicators of high-quality emergency general surgery care and assessed patient- and hospital-level compliance with these indicators. METHODS: We utilized a modified Delphi technique (RAND Appropriateness Methodology) to develop quality indicators. Through 2 rankings, an expert panel ranked potential quality indicators for validity. We then examined historic compliance with select quality indicators after 4 nonelective procedures (cholecystectomy, appendectomy, colectomy, small bowel resection) at 4 academic centers. RESULTS: Of 25 indicators rated as valid, 13 addressed patient-level quality and 12 addressed hospital-level quality. Adherence with 18 indicators was assessed. Compliance with performing a cholecystectomy for acute cholecystitis within 72 hours of symptom onset ranged from 45% to 76%. Compliance with surgery start times within 3 hours from the decision to operate for uncontained perforated viscus ranged from 20% to 100%. Compliance with exploration of patients with small bowel obstructions with ischemia/impending perforation within 3 hours of the decision to operate was 0% to 88%. For 3 quality indicators (auditing 30-day unplanned readmissions/operations for patients previously managed nonoperatively, monitoring time to source control for intra-abdominal infections, and having protocols for bypass/transfer), none of the hospitals were compliant. CONCLUSION: Developing indicators for providers to assess their performance provides a foundation for specific initiatives. Adherence to quality indicators may improve the quality of emergency general surgery care provided for which current outcomes are potentially modifiable.