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Background and Purpose- There is uncertainty among many emergency medicine physicians about the decision to give intravenous tPA (tissue-type plasminogen activator), which limits its use. A checklist approach has been suggested as a solution. We compared agreement on tPA treatment in suspected acute ischemic stroke patients between emergency medicine residents (EMRs) using a checklist and vascular neurology fellows (VNFs). Methods- Every suspected acute stroke patient brought to our comprehensive stroke center emergency room within 4.5 hours from symptom onset was prospectively evaluated simultaneously and independently by VNFs and EMRs. The latter used a tPA screening checklist, which included guideline exclusion criteria to help with their treatment decision. Agreement was determined using kappa (k) statistics. Results- Over 6 months, 60 patients were enrolled; 10% large vessel atherosclerosis, 18% cardioembolism, 12% small vessel, 12% cryptogenic, and 47% mimic. Forty-two percent were deemed tPA eligible by the EMR, 30% by the VNF, and 37% by the vascular neurology faculty. There were no complications in any tPA-treated patients. Agreement was substantial between EMR and VNF (κ=0.68 [95% CI, 0.49-0.87]) and between EMR and vascular neurology faculty (κ=0.69 [95% CI, 0.50-0.87]). Stroke mimics were the main cause of disagreement between EMR and VNF (κ=0.24 [95% CI, -0.15 to 0.63]) and between EMR and vascular neurology faculty (κ=0.35 [95% CI, -0.08 to 0.78]). Conclusions- Our data suggest that with the aid of a checklist, EMRs can accurately treat stroke patients with tPA. Areas for improvement include recognition of stroke mimics. Further studies are warranted to evaluate checklist-enhanced tPA treatment to allay emergency medicine physician uncertainty and expand the use of tPA.
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Isquemia Encefálica/tratamiento farmacológico , Fibrinolíticos/uso terapéutico , Médicos , Accidente Cerebrovascular/tratamiento farmacológico , Activador de Tejido Plasminógeno/uso terapéutico , Administración Intravenosa/métodos , Medicina de Emergencia/métodos , Servicio de Urgencia en Hospital/estadística & datos numéricos , Fibrinolíticos/administración & dosificación , Humanos , Masculino , Persona de Mediana Edad , Accidente Cerebrovascular/diagnóstico , Activador de Tejido Plasminógeno/administración & dosificaciónRESUMEN
OBJECTIVE: This study investigated the percentage of patients who achieved hemostasis with 4-factor prothrombin complex concentrate (4-factor PCC) 35 U/kg. The primary end point was to determine the effect of 4-factor PCC 35 U/kg on bleeding progression, assessed using computed tomography. METHODS: This was a retrospective, observational, single-center study conducted in patients with a major bleed admitted to a level 1 trauma center from May 1, 2013, to June 15, 2015, who received 4-factor PCC 35 U/kg for reversal of a direct factor Xa inhibitor taken prior to admission. RESULTS: Thirty-three patients were included in the study, with 31 patients in the final analysis. The mean (standard deviation) age was 73 (14.8) years; 54.5% of patients were female. Of the 33 patients, 13 presented with a traumatic brain injury, 9 with an aneurysmal subarachnoid hemorrhage, 8 with an intracerebral hemorrhage, 1 with a gastrointestinal bleed, 1 with a hematoma with active extravasation, and 1 with an intra-abdominal bleed. The most frequently used direct factor Xa inhibitor was rivaroxaban (81.8%). Overall, 83.8% of patients achieved hemostasis with 4-factor PCC 35 U/kg. Progression of hemorrhage was observed in 4 patients on repeat computed tomography scan and 1 patient had continued surgical bleeding. No thromboembolic events were reported. CONCLUSIONS: Low-dose, 4-factor PCC 35 U/kg appeared to produce hemostasis in a majority of the patients. This may be an effective dosing regimen for anticoagulant reversal of factor Xa inhibitors in clinically bleeding patients.
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Factores de Coagulación Sanguínea/administración & dosificación , Hemorragia/tratamiento farmacológico , Técnicas Hemostáticas , Hemostáticos/administración & dosificación , Anciano , Anticoagulantes/efectos adversos , Resultados de Cuidados Críticos , Inhibidores del Factor Xa/efectos adversos , Femenino , Hemorragia/diagnóstico por imagen , Hemostasis/efectos de los fármacos , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
INTRODUCTION: Engaging emergency clinicians in universal human immunodeficiency virus screening is paramount to achieving goals of reengaging human immunodeficiency virus-positive persons into care, identifying new human immunodeficiency virus cases, and linking them to care. The study aim was to identify beliefs and barriers towards opt-out human immunodeficiency virus testing among emergency nurses. METHODS: A cross-sectional study used Qualtrics software to deliver a survey on a tablet device to emergency nurses in a private Level 1 trauma hospital in Houston, Texas during downtimes of their clinical shifts. The survey evaluated perspectives on human immunodeficiency virus screening and knowledge relative to rapid screening and human immunodeficiency virus prevalence rates locally and nationally. RESULTS: Fifty emergency nurses were enrolled. Few nurses accurately identified human immunodeficiency virus prevalence rates at the local hospital and city level (10% and 42%, respectively). Most (54%) of nurses correctly estimated human immunodeficiency virus prevalence rates nationally. Nearly half of the nurses (42.0%) correctly predicted the cost of a rapid human immunodeficiency virus test with accuracy and most were willing to offer rapid human immunodeficiency virus testing all the time (60.0%). Eighty-eight percent of nurses were supportive of facilitating universal human immunodeficiency virus screening. However, 92.0% strongly supported human immunodeficiency virus testing for high risk patients only when compared to 80.0% support of testing for all eligible patients. Qualitative data revealed time constraints and follow-up concerns as barriers. DISCUSSION: Emergency nurses reported barriers that sometimes prevented application of Centers for Disease Control and Prevention recommendations to human immunodeficiency virus screening. Strategies to overcome these barriers are instrumental to programmatic success. Solutions can corroborate the importance of emergency nurses to the nation's Ending the HIV Epidemic plan.
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Servicio de Urgencia en Hospital , Infecciones por VIH/diagnóstico , Conocimientos, Actitudes y Práctica en Salud , Diagnóstico de Enfermería , Personal de Enfermería en Hospital/psicología , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Encuestas y CuestionariosRESUMEN
Efforts to improve consistency in management of snakes and venomous snake bites in the emergency department (ED) can improve patient and staff safety and outcomes, as well as improve surveillance data accuracy. The emergency department at a large academic medical center identified an opportunity to implement a standardized process for snake disposal and identification to reduce staff risk exposure to snake venom from snakes patients brought with them to the ED. METHODS: A local snake consultation vendor and zoo Herpetologist assisted with development of a process for snake identification and disposal. RESULTS: All snakes have been identified and securely disposed of using the newly implemented process and no safety incidents have been reported. IMPLICATIONS FOR PRACTICE: Other emergency department settings may consider developing a standardized process for snake disposal using listed specialized consultants combined with local resources and suppliers to promote employee and patient safety.
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Antivenenos/uso terapéutico , Servicio de Urgencia en Hospital , Salud Laboral , Seguridad del Paciente , Mordeduras de Serpientes/tratamiento farmacológico , Animales , Enfermería de Urgencia , Humanos , Fotograbar , Embalaje de Productos , Riesgo , Serpientes , TexasRESUMEN
BACKGROUND: A simulation-based course, Pediatric Simulation Training for Emergency Prehospital Providers (PediSTEPPs), was developed to optimize pediatric prehospital care. Seizures are common in Emergency Medical Services (EMS), and no studies have evaluated pediatric outcomes after EMS simulation training. OBJECTIVES: The primary objective was to determine if PediSTEPPs enhances seizure protocol adherence in blood glucose measurement and midazolam administration for seizing children. The secondary objective was to describe management of seizing patients by EMS and Emergency Departments (EDs). METHODS: This is a two-year retrospective cohort study of paramedics who transported 0-18 year old seizing patients to ten urban EDs. Management was compared between EMS crews with at least one paramedic who attended PediSTEPPs and crews that had none. Blood glucose measurement, medications administered, intravenous (IV) access, seizure recurrence, and respiratory failure data were collected from databases and run reports. Data were compared using Pearson's χ(2) test and odds ratios with 95% confidence intervals (categorical) and the Mann-Whitney test (continuous). RESULTS: Of 2200 pediatric transports with a complaint of seizure, 250 (11%) were actively seizing at the time of transport. Of these, 65 (26%) were treated by a PediSTEPPs-trained paramedic. Blood glucose was slightly more likely to be checked by trained than untrained paramedics (OR = 1.35, 95% CI 0.72-2.51). Overall, 58% received an indicated dose of midazolam, and this was slightly more likely in the trained than untrained paramedics (OR = 1.39, 95% CI 0.77-2.49). There were no differences in secondary outcomes between groups. The prevalence of hypoglycemia was low (2%). Peripheral IVs were attempted in 80%, and midazolam was predominantly given by IV (68%) and rectal (12%) routes, with 51% receiving a correct dose. Seizures recurred in 22%, with 34% seizing on ED arrival. Respiratory failure occurred in the prehospital setting in 25 (10%) patients in the study. CONCLUSION: Simulation-based training on pediatric seizure management may have utility. Data support the need to optimize the route and dose of midazolam for seizing children. Blood glucose measurement in seizure protocols may warrant reprioritization due to low hypoglycemia prevalence. KEY WORDS: seizure; emergency medical services; simulation; pediatrics.
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Auxiliares de Urgencia/educación , Convulsiones/tratamiento farmacológico , Entrenamiento Simulado/métodos , Adolescente , Niño , Preescolar , Servicios Médicos de Urgencia , Femenino , Humanos , Hipnóticos y Sedantes , Lactante , Masculino , Midazolam/administración & dosificación , Estudios RetrospectivosRESUMEN
INTRODUCTION: Non-narcotic intravenous medications may be a beneficial adjunct to oral multimodal pain regimens (MMPRs) which reduce but do not eliminate opioid exposure and prescribing after trauma. We hypothesized that the addition of a sub-dissociative ketamine infusion (KI) to a standardized oral MMPR reduces inpatient opioid exposure. METHODS: Eligible adult trauma patients admitted to the intermediate or intensive care unit were randomized upon admission to our institutional MMPR per usual care (UC) or UC plus sub-dissociative KI for 24 to 72 hours after arrival. The primary outcome was morphine milligram equivalents per day (MME/d) and secondary outcomes included total MME, discharge with an opioid prescription (OP%), and rates of ketamine side effects. Bayesian posterior probabilities (pp) were calculated using neutral priors. RESULTS: A total of 300 patients were included in the final analysis with 144 randomized to KI and 156 to UC. Baseline characteristics were similar between groups. The injury severity scores for KI were 19 [14, 29] versus UC 22 [14, 29]. The KI group had a lower rate of long-bone fracture (37% versus 49%) and laparotomy (16% versus 24%). Patients receiving KI had an absolute reduction of 7 MME/day, 96 total MME, and 5% in OP%. Additionally, KI had a relative risk (RR) reduction of 19% in MME/day (RR 0.81 [0.69 - 0.95], pp = 99%), 20% in total MME (RR 0.80 [0.64, 0.99], pp = 98%), and 8% in OP% (RR 0.92 [0.76, 1.11], pp = 81%). The KI group had a higher rate of delirium (11% versus 6%); however, rates of other side effects such as arrythmias and unplanned intubations were similar between groups. CONCLUSION: Addition of a sub-dissociative ketamine infusion to an oral MMPR resulted in a decrease in opioid exposure in severely injured patients. Sub-dissociative ketamine infusions can be used as a safe adjunct to decrease opioid exposure in monitored settings. LEVEL OF EVIDENCE: I; Therapeutic/Care Management.
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BACKGROUND: Evidence for effective pain management and opioid minimization of intravenous ketamine in elective surgery has been extrapolated to acutely injured patients, despite limited supporting evidence in this population. This trial seeks to determine the effectiveness of the addition of sub-dissociative ketamine to a pill-based, opioid-minimizing multi-modal pain regimen (MMPR) for post traumatic pain. METHODS: This is a single-center, parallel-group, randomized, controlled comparative effectiveness trial comparing a MMPR to a MMPR plus a sub-dissociative ketamine infusion. All trauma patients 16 years and older admitted following a trauma which require intermediate (IMU) or intensive care unit (ICU) level of care are eligible. Prisoners, patients who are pregnant, patients not expected to survive, and those with contraindications to ketamine are excluded from this study. The primary outcome is opioid use, measured by morphine milligram equivalents (MME) per patient per day (MME/patient/day). The secondary outcomes include total MME, pain scores, morbidity, lengths of stay, opioid prescriptions at discharge, and patient centered outcomes at discharge and 6 months. DISCUSSION: This trial will determine the effectiveness of sub-dissociative ketamine infusion as part of a MMPR in reducing in-hospital opioid exposure in adult trauma patients. Furthermore, it will inform decisions regarding acute pain strategies on patient centered outcomes. TRIAL REGISTRATION: The Ketamine for Acute Pain Management After Trauma (KAPT) with registration # NCT04129086 was registered on October 16, 2019.
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Dolor Agudo , Ketamina , Dolor Agudo/diagnóstico , Dolor Agudo/tratamiento farmacológico , Dolor Agudo/etiología , Adulto , Analgésicos/efectos adversos , Analgésicos Opioides/efectos adversos , Humanos , Ketamina/efectos adversos , Dimensión del Dolor , Dolor PostoperatorioRESUMEN
INTRODUCTION: Chest x-ray (CXR) has been shown to be an effective detection tool for clinically significant trauma. We evaluated differences in findings between CXR and computed tomography of the chest (CCT), their impact on clinical management and the performance of the CXR. METHODS: This retrospective study examined children (less than 18â¯years) who received a CXR and CCT between 2009 and 2015. We compared characteristics of children by conducting univariate analysis, reporting the proportion of additional diagnoses captured by CCT, and using it to evaluate the sensitivity and specificity of the CXR. Outcome variables were diagnoses made by CCT as well as the ensuing changes in the clinical management attributable to the diagnoses reported by the CCT and not observed by the CXR. RESULTS: In 1235 children, CCT was associated with diagnosing higher proportions of contusion or atelectasis (60% vs 31%; pâ¯<â¯.0001), pneumothorax (23% vs 9%; pâ¯<â¯.0001), rib fracture (18% vs 7%; pâ¯<â¯.0001), other fracture (20% vs 10%; pâ¯<â¯.0001), diaphragm rupture (0.2% vs 0.1%; pâ¯=â¯.002), and incidental findings (7% vs 2%; pâ¯<â¯.0001) as compared to CXR. CCT findings changed the management of 107 children (8.7%) with 32 (2.6%) of the changes being surgical procedures. The overall sensitivity and specificity of the CXR were 57.9% (95% CI: 54.5-61.2) and 90.2% (95% CI: 86.8-93.1), respectively. The positive predictive value and negative predictive value were 93.1% and 48.6%, respectively. CONCLUSION: CXR is a useful initial screening tool to evaluate pediatric trauma patients along with clinical presentation in the Emergency Department in children. LEVEL OF EVIDENCE: Level III, diagnostic test.
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Traumatismos Torácicos , Heridas no Penetrantes , Niño , Humanos , Puntaje de Gravedad del Traumatismo , Radiografía Torácica , Estudios Retrospectivos , Traumatismos Torácicos/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Heridas no Penetrantes/diagnóstico por imagen , Rayos XRESUMEN
OBJECTIVE: With a significant proportion of individuals with opioid use disorder not currently receiving treatment, it is critical to find novel ways to engage and retain patients in treatment. Our objective is to describe the feasibility and preliminary outcomes of a program that used emergency physicians to initiate a bridge treatment, followed by peer support services, behavioral counseling, and ongoing treatment and follow-up. METHODS: We developed a program called the Houston Emergency Opioid Engagement System (HEROES) that provides rapid access to board-certified emergency physicians for initiation of buprenorphine, plus at least 1 behavioral counseling session and 4 weekly peer support sessions over the course of 30 days. Follow-ups were conducted by phone and in person to obtain patient-reported outcomes. Primary outcomes included percentage of patients who completed the 30-day program and the percentage for successful linkage to more permanent ongoing treatment after the initial program. RESULTS: There were 324 participants who initiated treatment on buprenorphine from April 2018 to July 2019, with an average age of 36 (±9.6 years) and 52% of participants were males. At 30 days, 293/324 (90.43%) completed the program, and 203 of these (63%) were successfully connected to a subsequent community addiction medicine physician. There was a significant improvement (36%) in health-related quality of life. CONCLUSION: Lack of insurance is a predictor for treatment failure. Implementation of a multipronged treatment program is feasible and was associated with positive patient-reported outcomes. This approach holds promise as a strategy for engaging and retaining patients in treatment.
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INTRODUCTION: Exsanguination remains a leading cause of preventable death in traumatically injured patients. To better treat hemorrhagic shock, hospitals have adopted massive transfusion protocols (MTPs) which accelerate the delivery of blood products to patients. There has been an increase in mass casualty events (MCE) worldwide over the past two decades. These events can overwhelm a responding hospital's supply of blood products. Using a computerized model, this study investigated the ability of US trauma centers (TCs) to meet the blood product requirements of MCEs. METHODS: Cross-sectional survey data of on-hand blood products were collected from 16 US level-1 TCs. A discrete event simulation model of a TC was developed based on historic data of blood product consumption during MCEs. Each hospital's blood bank was evaluated across increasingly more demanding MCEs using modern MTPs to guide resuscitation efforts in massive transfusion (MT) patients. RESULTS: A total of 9,000 simulations were performed on each TC's data. Under the least demanding MCE scenario, the median size MCE in which TCs failed to adequately meet blood product demand was 50 patients (IQR 20-90), considering platelets. Ten TCs exhaust their supply of platelets prior to red blood cells (RBCs) or plasma. Disregarding platelets, five TCs exhausted their supply of O- packed RBCs, six exhausted their AB plasma supply, and five had a mixed exhaustion picture. CONCLUSION: Assuming a TC's ability to treat patients is limited only by their supply of blood products, US level-1 TCs lack the on-hand blood products required to adequately treat patients following a MCE. Use of non-traditional blood products, which have a longer shelf life, may allow TCs to better meet the blood product requirement needs of patients following larger MCEs.
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Transfusión Sanguínea , Necesidades y Demandas de Servicios de Salud , Incidentes con Víctimas en Masa , Choque Hemorrágico/terapia , Capacidad de Reacción , Bancos de Sangre , Estudios Transversales , Humanos , Evaluación de Necesidades , Centros Traumatológicos , Estados UnidosRESUMEN
OBJECTIVES: The emergency department provides opportunities for identifying undiagnosed HIV cases. We sought to describe the racial and sex epidemiology of HIV through ED screening in Harris County, Texas, one of the most diverse and populous metropolitan cities in the Southern United States. METHODS: We used a descriptive secondary analysis of a universal HIV screening program (2010-2017) to quantify demographic differences in HIV incidence. We applied a validated codebook to a dataset by the local health department containing 894,387 records of ED visits with 62 variables to assess race/ethnicity and sex differences. RESULTS: Of 885,199 (98.9%) patients screened for HIV during an ED visit, 1795 tested positive (incidence rate = 0.2%). Of those tested for HIV, most were White (66.3%), followed by racial minorities (African Americans (29.9%), Asians (3.6%), and American Indian, Alaska Native, Native Hawaiian or Pacific Islanders (natives) (0.1%). Half of those tested were Hispanic. Conversely, of patients testing positive (n = 1782, 99.3% of positive cases), most were African American (52.6%) followed by Whites (46.6%), Asians (0.7%), and natives (0.1%). Less than half (35.5%) of positives were Hispanic. A racial disparity in HIV incidence was discovered among African American females. This group represented 16.8% of the tested population; yet accounted for 65.8% of females who tested positive for HIV and 20.3% of all HIV-positive test results. CONCLUSION: Descriptive findings of the racial and sex epidemiology of HIV revealed that African American females had the largest disparity between the population tested and those who tested positive for HIV.
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In December 2019, a cluster of severe pneumonia cases of unknown cause was reported in Wuhan, Hubei province, China. A novel strain of coronavirus belonging to the same family of viruses that cause severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) was identified. In February 2020, cases began being identified in the United States. We describe a sentinel COVID-19 patient in Houston, Texas, who first presented on March 1, 2020. The patient did not meet criteria for a Person Under Investigation (PUI) as recommended by the Centers for Disease Control and Prevention (CDC) at the time. This case has broad implications for emergency department screening and preparedness for COVID-19 and other future infectious diseases.
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Cognitive motivation theories contend that individuals have greater readiness for behavioral change during critical periods or life events, and a non-fatal overdose could represent such an event. The objective of this study was to examine if the use of a specialized mobile response team (assertive outreach) could help identify, engage, and retain people who have survived an overdose into a comprehensive treatment program. We developed an intervention, consisting of mobile outreach followed by medication and behavioral treatment, in Houston Texas between April and December 2018. Our primary outcome variables were the level of willingness to engage in treatment, and percent who retained in treatment after 30 and 90 day endpoints. We screened 103 individuals for eligibility, and 34 (33%) elected to engage in the treatment program, while two-thirds chose not to engage in treatment, primarily due to low readiness levels. The average age was 38.2 ± 12 years, 56% were male, 79% had no health insurance, and the majority (77%) reported being homeless or in temporary housing. There were 30 (88%) participants still active in the treatment program after 30 days, and 19 (56%) after 90 days. Given the high rates of relapse using conventional models, which wait for patients to present to treatment, our preliminary results suggest that assertive outreach could be a promising strategy to motivate people to enter and remain in long-term treatment.
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Sobredosis de Droga , Personas con Mala Vivienda , Sobredosis de Opiáceos , Adulto , Sobredosis de Droga/tratamiento farmacológico , Femenino , Vivienda , Humanos , Masculino , TexasRESUMEN
INTRODUCTION: Hurricanes have increased in severity over the past 35 years, and climate change has led to an increased frequency of catastrophic flooding. The impact of floods on emergency department (ED) operations and patient health has not been well studied. We sought to detail challenges and lessons learned from the severe weather event caused by Hurricane Harvey in Houston, Texas, in August 2017. METHODS: This report combines narrative data from interviews with retrospective data on patient volumes, mode of arrival, and ED lengths of stay (LOS). We compared the five-week peri-storm period for the 2017 hurricane to similar periods in 2015 and 2016. RESULTS: For five days, flooding limited access to the hospital, with a consequent negative impact on provider staffing availability, disposition and transfer processes, and resource consumption. Interruption of patient transfer capabilities threatened patient safety, but flexibility of operations prevented poor outcomes. The total ED patient census for the study period decreased in 2017 (7062 patients) compared to 2015 (7665 patients) and 2016 (7770) patients). Over the five-week study period, the arrival-by-ambulance rate was 12.45% in 2017 compared to 10.1% in 2016 (p < 0.0001) and 13.7% in 2015 (p < 0.0001). The median ED length of stay (LOS) in minutes for admitted patients was 976 minutes in 2015 (p < 0.0001) compared to 723 minutes in 2016 and 591 in 2017 (p < 0.0001). For discharged patients, median ED LOS was 336 minutes in 2016 compared to 356 in 2015 (p < 0.0001) and 261 in 2017 (p < 0.0001). Median boarding time for admitted ED patients was 284 minutes in 2016 compared to 470 in 2015 (p < 0.0001) and 234.5 in 2017 (p < 0.001). Water damage resulted in a loss of 133 of 179 inpatient beds (74%). Rapid and dynamic ED process changes were made to share ED beds with admitted patients and to maximize transfers post-flooding to decrease ED boarding times. CONCLUSION: A number of pre-storm preparations could have allowed for smoother and safer ride-out functioning for both hospital personnel and patients. These measures include surplus provisioning of staff and supplies to account for limited facility access. During a disaster, innovative flexibility of both ED and hospital operations may be critical when disposition and transfer capibilities or bedding capacity are compromised.
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Defensa Civil , Tormentas Ciclónicas/estadística & datos numéricos , Servicio de Urgencia en Hospital , Aceptación de la Atención de Salud/estadística & datos numéricos , Gestión del Cambio , Defensa Civil/métodos , Defensa Civil/organización & administración , Defensa Civil/normas , Servicio de Urgencia en Hospital/organización & administración , Servicio de Urgencia en Hospital/tendencias , Accesibilidad a los Servicios de Salud/organización & administración , Hospitalización/estadística & datos numéricos , Humanos , Mejoramiento de la Calidad , Estudios Retrospectivos , Texas/epidemiologíaRESUMEN
PURPOSE: Following US military implementation of a cold-stored whole blood program, several US trauma centers have begun incorporating uncrossmatched, group O cold-stored whole blood into civilian trauma resuscitation. We set out to evaluate the safety profile, transfusion reactions events, and impact of low-titer group O whole blood (LTO-WB) at our center. METHODS: In November 2017, we added LTO-WB to each of our helicopters and to our emergency department (ED) refrigerator, alongside that of existing red blood cells and plasma. We collected information on all patients with trauma receiving prehospital or ED transfusion of uncrossed, emergency release blood products between November 2017 and June 2018. Patients were divided into those receiving any LTO-WB and those receiving only red blood cell and or plasma (COMP). Serial hemolysis panels were obtained at 3 hours, 24 hours, and 48 hours. All data were run using STATA 12.1. Statistical significance was set at p < 0.05. RESULTS: One hundred ninety-eight patients received LTO-WB and 152 patients received COMP. There were no differences in age, sex, or mechanism. The LTO-WB patients had higher chest Abbreviated Injury Scale scores (median, 3 vs. 2; p = 0.027), as well as worse arrival base excess (median, -7 vs. -5; p = 0.014) and lactate (5.1 vs. 3.5; p < 0.001). The LTO-WB patients received less post-ED blood products than the COMP patients (median, 0 vs. 3; p = 0.001). There was no difference in survival (LTO-WB, 73%; COMP, 74%; p = 0.805). There were only two suspected transfusion reactions, both in the COMP group (p = 0.061). There was no difference in hemolysis panel values. Controlling for age, severity of injury, and prehospital physiology, LTO-WB was associated with a 53% reduction in post-ED blood product transfusion (odds ratio, 0.47; 0.23-0.94 95% CI; p = 0.033) and two-fold increase in likelihood of survival (odds ratio, 2.19; 1.01-4.76 95% CI; p = 0.047). CONCLUSION: Low-titer group O whole blood has similar evidence of laboratory hemolysis, similar transfusion reaction rates, and is associated with a reduction in post-ED transfusions and increase likelihood of survival. LEVEL OF EVIDENCE: Therapeutic, Level II.
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Sistema del Grupo Sanguíneo ABO , Transfusión Sanguínea/métodos , Resucitación/efectos adversos , Reacción a la Transfusión/epidemiología , Heridas y Lesiones/terapia , Escala Resumida de Traumatismos , Adulto , Ambulancias Aéreas/normas , Ambulancias Aéreas/estadística & datos numéricos , Tipificación y Pruebas Cruzadas Sanguíneas/normas , Transfusión Sanguínea/normas , Transfusión Sanguínea/estadística & datos numéricos , Servicio de Urgencia en Hospital/normas , Servicio de Urgencia en Hospital/estadística & datos numéricos , Femenino , Hemólisis , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Resucitación/métodos , Resucitación/normas , Reacción a la Transfusión/sangre , Reacción a la Transfusión/etiología , Centros Traumatológicos/normas , Centros Traumatológicos/estadística & datos numéricos , Resultado del Tratamiento , Heridas y Lesiones/sangre , Heridas y Lesiones/diagnóstico , Adulto JovenRESUMEN
Resuscitative endovascular balloon occlusion of the aorta (REBOA) has recently gained popularity as a minimally invasive alternative to open aortic cross-clamping in the management of patients with non-compressible hemorrhage arising below the diaphragm. The purpose of this review is to provide a description of the technical aspects of REBOA use along with an overview of the current animal and clinical data regarding its use.
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BACKGROUND: Out-of-hospital cardiac arrest (OHCA) is associated with high mortality. Current methods for predicting mortality post-arrest require data unavailable at the time of initial medical contact. We created and validated a risk prediction model for patients experiencing OHCA who achieved return of spontaneous circulation (ROSC) which relies only on objective information routinely obtained at first medical contact. METHODS: We performed a retrospective evaluation of 14,892 OHCA patients in a large metropolitan cardiac arrest registry, of which 3952 patients had usable data. This population was divided into a derivation cohort (n = 2,635) and a verification cohort (n = 1,317) in a 2:1 ratio. Backward stepwise logistic regression was used to identify baseline factors independently associated with death after sustained ROSC in the derivation cohort. The cardiac arrest survival score (CASS) was created from the model and its association with in-hospital mortality was examined in both the derivation and verification cohorts. RESULTS: Baseline characteristics of the derivation and verification cohorts were not different. The final CASS model included age >75 years (odds ratio [OR] = 1.61, confidence interval [CI][1.30-1.99], p < 0.001), unwitnessed arrest (OR = 1.95, CI[1.58-2.40], p < 0.001), home arrest (OR = 1.28, CI[1.07-1.53], p = 0.008), absence of bystander CPR (OR = 1.35, CI[1.12-1.64], p = 0.003), and non-shockable initial rhythm (OR = 3.81, CI[3.19-4.56], p < 0.001). The area under the curve for the model derivation and model verification cohorts were 0.7172 and 0.7081, respectively. CONCLUSION: CASS accurately predicts mortality in OHCA patients. The model uses only binary, objective clinical data routinely obtained at first medical contact. Early risk stratification may allow identification of more patients in whom timely and aggressive invasive management may improve outcomes.