RESUMEN
BACKGROUND: Postpartum hemorrhage (PPH) is one of the leading causes of obstetric complications. The goal of this study was to identify risk factors for obstetric (OB) massive transfusion (MT) and determine the feasibility of developing a low-titer group O RhD-positive whole blood (LTO + WB) protocol for OB hemorrhage. STUDY DESIGN AND METHODS: A retrospective study of OB patients who received transfusion within 24 h. MT patients were those who received >3 U of pRBC within 1 h or > 10 U in 24 h. Patient demographics, OB history, comorbidities, blood type, antibody status, and known risk factors for PPH and maternal-fetal outcomes were compared. Logistic regression was used for univariate and multivariate analyses. RESULTS: Of the 610 transfused OB patients, 12.0% (n = 73) required MT. Groups were well matched for body mass index (BMI), maternal comorbidities, and history of spontaneous vaginal deliveries. The incidence of the previous cesarean section was higher in the MT group. Exactly 93.9% of patients were RhD-positive and 3.77% of all patients possessed an antibody on pretransfusion testing. Patients with MT had a longer length of stay (LOS), higher rate of intensive care unit (ICU) admission, fetal death, and hysterectomy. Multivariate analysis found age >35, PPH, placenta percreta, accreta, and increta to be significant (p < .05) risk factors for MT. DISCUSSION: Patients over 35 years and those with abnormal placentation are at increased risk of requiring MT. With a time to delivery of 2 days, potential MT patients can be identified early, and with a 94% rate of RhD-positive+, they are eligible to receive low-titer O whole blood (LTOWB) providing hemostatic resuscitation with reduced donor exposure.
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Placenta Accreta , Hemorragia Posparto , Humanos , Embarazo , Femenino , Cesárea , Estudios Retrospectivos , Parto Obstétrico , Hemorragia Posparto/epidemiología , Hemorragia Posparto/terapia , Factores de Riesgo , Placenta Accreta/epidemiología , Placenta Accreta/etiología , Placenta Accreta/cirugía , HisterectomíaRESUMEN
Low titer type O Rh-D + whole blood (LTO + WB) has become a first-line resuscitation medium for hemorrhagic shock in many centers around the World. Showing early effectiveness on the battlefield, LTO + WB is used in both the pre-hospital and in-hospital settings for traumatic and non-traumatic hemorrhage resuscitation. Starting in 2018, the San Antonio Whole Blood Collaborative has worked to provide LTO + WB across Southwest Texas, initially in the form of remote damage control resuscitation followed by in-hospital trauma resuscitation. This program has since expanded to include pediatric trauma resuscitation, obstetric hemorrhage, females of childbearing potential, and non-traumatic hemorrhage. The objective of this manuscript is to provide a three-year update on the successes and expansion of this system and outline resuscitation challenges in special populations.
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Servicios Médicos de Urgencia , Choque Hemorrágico , Heridas y Lesiones , Transfusión Sanguínea , Niño , Femenino , Hemorragia/terapia , Hospitales , Humanos , Resucitación , Choque Hemorrágico/terapia , Heridas y Lesiones/complicaciones , Heridas y Lesiones/terapiaRESUMEN
BACKGROUND: Low titer O+ whole blood (LTOWB) is being increasingly used for resuscitation of hemorrhagic shock in military and civilian settings. The objective of this study was to identify the impact of prehospital LTOWB on survival for patients in shock receiving prehospital LTOWB transfusion. STUDY DESIGN AND METHODS: A single institutional trauma registry was queried for patients undergoing prehospital transfusion between 2015 and 2019. Patients were stratified based on prehospital LTOWB transfusion (PHT) or no prehospital transfusion (NT). Outcomes measured included emergency department (ED), 6-h and hospital mortality, change in shock index (SI), and incidence of massive transfusion. Statistical analyses were performed. RESULTS: A total of 538 patients met inclusion criteria. Patients undergoing PHT had worse shock physiology (median SI 1.25 vs. 0.95, p < .001) with greater reversal of shock upon arrival (-0.28 vs. -0.002, p < .001). In a propensity-matched group of 214 patients with prehospital shock, 58 patients underwent PHT and 156 did not. Demographics were similar between the groups. Mean improvement in SI between scene and ED was greatest for patients in the PHT group with a lower trauma bay mortality (0% vs. 7%, p = .04). No survival benefit for patients in prehospital cardiac arrest receiving LTOWB was found (p > .05). DISCUSSION: This study demonstrated that trauma patients who received prehospital LTOWB transfusion had a greater improvement in SI and a reduction in early mortality. Patient with prehospital cardiac arrest did not have an improvement in survival. These findings support LTOWB use in the prehospital setting. Further multi-institutional prospective studies are needed.
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Transfusión Sanguínea , Resucitación , Choque Hemorrágico/terapia , Adulto , Transfusión Sanguínea/métodos , Estudios de Cohortes , Femenino , Mortalidad Hospitalaria , Humanos , Masculino , Persona de Mediana Edad , Resucitación/métodos , Choque Hemorrágico/sangre , Choque Hemorrágico/mortalidad , Adulto JovenRESUMEN
Hemorrhagic shock remains the leading cause of preventable death on the battlefield, despite major advances in trauma care. Early initiation of balanced resuscitation has been shown to decrease mortality in the hemorrhaging patient. To address transfusion limitations in austere environments or in the event of multiple casualties, walking blood banks have been used in the combat setting with great success. Leveraging the success of the region-wide whole blood program in San Antonio, Texas, we report a novel plan that represents a model response to mass casualty incidents.
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Almacenamiento de Sangre/métodos , Transfusión Sanguínea , Bancos de Sangre/historia , Servicios Médicos de Urgencia , Historia del Siglo XX , Humanos , Incidentes con Víctimas en Masa , Resucitación , Choque Hemorrágico/etiología , Choque Hemorrágico/terapia , Texas , Tiempo de Tratamiento , Heridas y Lesiones/complicacionesRESUMEN
BACKGROUND: Despite countless advancements in trauma care a survivability gap still exists in the prehospital setting. Military studies clearly identify hemorrhage as the leading cause of potentially survivable prehospital death. Shifting resuscitation from the hospital to the point of injury has shown great promise in decreasing mortality among the severely injured. MATERIALS AND METHODS: Our regional trauma network (Southwest Texas Regional Advisory Council) developed and implemented a multiphased approach toward facilitating remote damage control resuscitation. This approach required placing low-titer O+ whole blood (LTO+ WB) at helicopter emergency medical service bases, transitioning hospital-based trauma resuscitation from component therapy to the use of whole blood, modifying select ground-based units to carry and administer whole blood at the scene of an accident, and altering the practices of our blood bank to support our new initiative. In addition, we had to provide information and training to an entire large urban emergency medical system regarding changes in policy. RESULTS: Through a thorough, structured program we were able to successfully implement point-of-injury resuscitation with LTO+ WB. Preliminary evaluation of our first 25 patients has shown a marked decrease in mortality compared to our historic rate using component therapy or crystalloid solutions. Additionally, we have had zero transfusion reactions or seroconversions. CONCLUSION: Transfusion at the scene within minutes of injury has the potential to save lives. As our utilization expands to our outlying network we expect to see a continued decrease in mortality among significantly injured trauma patients.
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Bancos de Sangre , Conservación de la Sangre/normas , Transfusión Sanguínea/normas , Redes Comunitarias , Servicios Médicos de Urgencia , Hemorragia/terapia , Resucitación , Centros Traumatológicos , Sistema del Grupo Sanguíneo ABO , Bancos de Sangre/organización & administración , Bancos de Sangre/normas , Redes Comunitarias/organización & administración , Redes Comunitarias/normas , Soluciones Cristaloides/administración & dosificación , Servicios Médicos de Urgencia/organización & administración , Servicios Médicos de Urgencia/normas , Femenino , Hemorragia/mortalidad , Humanos , Masculino , Texas , Centros Traumatológicos/organización & administración , Centros Traumatológicos/normasRESUMEN
OBJECTIVE: For thirty years, emergency medical services agencies have emphasized limiting spinal motion during transport of the trauma patient to the emergency department. The long spine board (LSB) has been the mainstay of spinal motion restriction practices, despite the paucity of data to support its use. The purpose of this study was to determine reduction in lateral motion afforded by the LSB in comparison to the stretcher mattress alone. METHODS: This was a randomized controlled crossover trial where healthy volunteer subjects were randomly assigned to either LSB or stretcher mattress only. All subjects were fitted with a rigid cervical collar, secured to the assigned device (including foam head blocks), and driven on a closed course with prescribed turns at a low speed (<20 mph). Upon completion, the subjects were then secured to the other device and the course was repeated. Each subject was fitted with 3 graduated-paper disks (head, chest, hip). Lasers were affixed to a scaffold attached to the stretcher bridging over the patient and aimed at the center of the concentric graduations on the disks. During transport, the degree of lateral movement was recorded during each turn. Significance was determined by t test. RESULTS: In both groups, the head demonstrated the least motion with 0.46±0.4-cm mattress and 0.97±0.7-cm LSB (P≤ .0001). The chest and hip had lateral movement with chest 1.22±0.9-cm mattress and 2.22±1.4-cm LSB (P≤ .0001), and the hip 1.20±0.9-cm mattress and 1.88±1.2-cm LSB (P≤ .0001), respectively. In addition, lateral movement had a significant direct correlation with body mass index. CONCLUSION: The stretcher mattress significantly reduced lateral movement during transport.
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Inmovilización/instrumentación , Transporte de Pacientes/métodos , Adulto , Estudios Cruzados , Diseño de Equipo , Femenino , Cabeza/fisiología , Cadera/fisiología , Humanos , Masculino , Persona de Mediana Edad , Movimiento , Traumatismos Vertebrales , Torso/fisiologíaAsunto(s)
Infecciones por Coronavirus/epidemiología , Violencia Doméstica/prevención & control , Violencia Doméstica/estadística & datos numéricos , Armas de Fuego , Neumonía Viral/epidemiología , Heridas por Arma de Fuego/epidemiología , Heridas por Arma de Fuego/prevención & control , Betacoronavirus , COVID-19 , Femenino , Humanos , Masculino , Pandemias , Prevalencia , SARS-CoV-2 , Estados Unidos/epidemiologíaRESUMEN
OBJECTIVES: To determine the safety and efficacy of cryopreserved packed red blood cell (CPRBC) transfusion in trauma patients. BACKGROUND: Liquid packed red blood cells (LPRBCs) have an abbreviated shelf-life and worsening storage lesion with age. CPRBCs are frozen 2 to 6 days after donation, stored up to 10 years, and are available for 14 days after thawing and washing. CPRBCs can be utilized in diverse settings, but the effect on clinical outcomes is unknown. METHODS: We performed a prospective, randomized, double-blind study at 5 level 1 trauma centers. Stable trauma patients requiring transfusion were randomized to young LPRBCs (≤14 storage days), old LPRBCs (>14 storage days), or CPRBCs. Tissue oxygenation (StO2), biochemical and inflammatory mediators were measured, and clinical outcomes were determined. RESULTS: Two hundred fifty-six patients with well-matched injury severity and demographics (P > 0.2) were randomized (84 young, 86 old, and 86 CPRBCs). Pretransfusion and final hematocrits were similar (P > 0.68). Patients in all groups received the same number of units postrandomization (2 [1-4]; P > 0.05). There was no difference in the change in tissue oxygenation between groups. CPRBCs contained less α2-macrogobulin, haptoglobin, C-reactive protein, and serum amyloid P (P < 0.001). Organ failure, infection rate, and mortality did not differ between groups (P > 0.2). CONCLUSIONS: Transfusion of CPRBCs is as safe and effective as transfusion of young and old LPRBCs and provides a mechanism to deliver PRBCs in a wide variety of settings.
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Conservación de la Sangre/métodos , Seguridad de la Sangre , Criopreservación/métodos , Transfusión de Eritrocitos/métodos , Heridas y Lesiones/terapia , Adulto , Factores de Edad , Anciano , Análisis de Varianza , Bancos de Sangre , Terapia Combinada , Método Doble Ciego , Transfusión de Eritrocitos/efectos adversos , Femenino , Humanos , Puntaje de Gravedad del Traumatismo , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Medición de Riesgo , Estadísticas no Paramétricas , Tasa de Supervivencia , Factores de Tiempo , Centros Traumatológicos , Resultado del Tratamiento , Heridas y Lesiones/diagnóstico , Heridas y Lesiones/mortalidadRESUMEN
BACKGROUND: The overall immunopathology of the T-helper cell (Th)-17 immune response has been implicated in various inflammatory diseases including pulmonary inflammation; however its potential role in acute respiratory distress syndrome (ARDS) is not defined. This study aimed to evaluate the Th-17 response in bronchoalveolar lavage fluid (BALF) and blood and from trauma patients with pulmonary complications. METHODS: A total of 21 severely injured intensive care unit (ICU) subjects, who were mechanically ventilated and undergoing bronchoscopy, were enrolled. BALF and blood were collected and analyzed for Th-1 (interferon [IFN]γ), Th-2 (interleukin [IL]-4, -10), Th-17 (IL-17A, -17F, -22, 23) and pro-inflammatory (IL-1ß, IL-6, tumor necrosis factor [TNF]α) cytokine levels. RESULTS: Significant levels of the Th-17 cytokines IL-17A, -17F and -21 and IL-6 (which can be classified as a Th-17 cytokine) were observed in the BALF of all subjects. There were no significant differences in Th-17 cytokines between those subjects with ARDS and those without, with the exception of plasma and BALF IL-6, which was markedly greater in ARDS subjects, as compared with controls and non-ARDS subjects. CONCLUSIONS: Trauma patients with pulmonary complications exhibited a significant Th-17 response in the lung and blood, suggesting that this pro-inflammatory milieu may be a contributing factor to such complications.
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Unidades de Cuidados Intensivos , Síndrome de Dificultad Respiratoria/complicaciones , Células Th17/inmunología , Heridas y Lesiones/complicaciones , Adulto , Líquido del Lavado Bronquioalveolar , Estudios de Casos y Controles , Citocinas/sangre , Citocinas/metabolismo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Síndrome de Dificultad Respiratoria/inmunología , Heridas y Lesiones/inmunología , Adulto JovenAsunto(s)
Extubación Traqueal , Infecciones por Coronavirus , Pandemias , Neumonía Viral , Betacoronavirus , COVID-19 , Humanos , Plásticos , SARS-CoV-2Asunto(s)
Infecciones por Coronavirus , Pandemias , Equipo de Protección Personal , Neumonía Viral , Anestesiólogos , Betacoronavirus , COVID-19 , Humanos , SARS-CoV-2RESUMEN
BACKGROUND: It has been suggested that the Lethal Triad be modified to include hypocalcemia, coined as the Lethal Diamond. Hypocalcemia in trauma has been attributed to multiple mechanisms, but new evidence suggests that traumatic injury may result in the development of hypoCa independent of blood transfusion. We hypothesize that hypocalcemia is associated with increased blood product requirements and mortality. METHODS: A retrospective study of 1,981 severely injured adult trauma patients from 2016 to 2019. Ionized calcium (iCa) levels were obtained on arrival and subjects were categorized by a threshold iCa level of 1.00 mmol/L and compared. Univariable and multivariable logistic regression analysis was performed. RESULTS: The hypocalcemia (iCa <1.00 mmol/L) group had increased rate of overall (p = 0.001), 4-hr (p = 0.007), and 24-hr (p = 0.003) mortality. There was no difference in prehospital transfusion volume between groups (p = 0.25). Hypocalcemia was associated with increased blood product requirements at 4 h (p <0.001), 24 h (p <0.001), and overall hospital length of stay (p <0.001). Logistic regression analysis showed increased odds of 4-hour mortality (OR 0.077 [95 % CI 0.011, 0.523], p = 0.009) and 24-hour mortality (OR 0.121 [95 % CI 0.019, 0.758], p = 0.024) for every mmol/L increase in iCa. CONCLUSIONS: This study shows the association of hypoCa and traumatic injury. Severe hypoCa was associated with increased odds of early and overall mortality and increased blood product requirements. These results support the need for future prospective trials assessing the role of hypocalcemia in trauma.
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Hipocalcemia , Heridas y Lesiones , Adulto , Humanos , Estudios Retrospectivos , Calcio , Transfusión SanguíneaRESUMEN
Clear cell sarcoma (CSS) is a unique malignant soft tissue tumor that mainly occurs from the aponeurotic tissue and tendons of extremities. It is rare in the pediatric population. The tumor does not respond well to chemotherapy or irradiation. Complete surgical resection offers the best chance for a cure. Most studies have demonstrated poor prognosis of this tumor, if it is >5 cm. The literature suggests that local recurrence and distant metastasis are not uncommon even with wide resection and that late recurrence and metastasis commonly occur. This case report discusses CSS in the jaw of a pediatric patient. To our knowledge, this is the only case of CSS of the jaw.
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Neoplasias Maxilomandibulares/patología , Sarcoma de Células Claras/patología , Adolescente , Femenino , Humanos , Hibridación Fluorescente in Situ , Neoplasias Maxilomandibulares/genética , Neoplasias Maxilomandibulares/cirugía , Proteínas de Fusión Oncogénica/genética , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Sarcoma de Células Claras/genética , Sarcoma de Células Claras/cirugíaRESUMEN
Dr Fabian and his colleagues have transformed the management of colon injury during a span of more than four decades. They have done so by following a patient-centered, rigorous, and dogged approach to improving patient care and standardizing care with a simplified and widely applicable algorithm. All non-destructive colon injuries are primarily repaired. Healthy patients without massive blood loss who have sustained destructive wounds are treated with resection and anastomosis without fecal diversion. Patients with coexisting significant medical conditions or those requiring greater than 6 units of packed red blood cell(PRBC) transfusions are treated with resection and fecal diversion. Following this simple algorithm has led to a low rate of anastomotic leak with minimal colon-related morbidity in penetrating and blunt colon trauma and in those patients requiring abbreviated laparotomy/damage control procedures. During his four decades in Memphis, Dr Fabian established, led, and developed a regional trauma system which transformed trauma care, significantly improving survival and minimizing disability of patients in the Memphis community and across the entire mid-South region. I was fortunate to be a trauma and surgical critical care fellow 30 years ago in Memphis. As a leader, Dr Fabian gave us the freedom to pursue our own interests and explore ideas with full academic freedom with only one caveat-always do the right thing for our patient. A general principle championed by Dr Fabian is that patient care is not a means to some other goal (academic, reputational, or financial); no, serving the patient's interests first is the reason we exist as surgeons and the reason why the trauma system exists. This human-centered approach was central to the Memphis approach to trauma care led by Timothy C Fabian and will live on in the work of those who are following his leadership.
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INTRODUCTION: The role of calcium is ubiquitous in human physiology. Emerging evidence suggests that the lethal triad be revised to include hypocalcemia (hypoCa) and thus be known as the lethal diamond . There are data showing that traumatic injury may result in hypoCa independent from the mechanism of calcium chelation by citrate-based blood preservatives. Minimal literature exists analyzing the role of hypoCa in pediatric trauma patients. We hypothesize that there is an independent association of hypoCa with increased blood product requirements and mortality. METHODS: A retrospective cohort study of severely injured pediatric trauma patients was conducted. Trauma registry data were collected from January 2016 to August 2021. Ionized calcium (iCa) levels were obtained from arrival blood draws. Subjects were categorized into two groups by a threshold iCa level of 1.00 mmol/L and compared. Shock Index Pediatric Adjusted scores were used to adjust for age-specific differences in vital signs. RESULTS: A total of 142 patients were compared, of which 46.5% were hypocalcemic (iCa <1.00 mmol/L). Patients were well matched in terms of demographics and injury severity. The hypocalcemic group had lower systolic blood pressure and a higher percentage of Shock Index Pediatric Adjusted-positive patients. Weight-adjusted transfusion volumes were significantly higher in the hypocalcemic group at both the 4-hour and 24-hour time points without a difference in prehospital transfusion requirements. There was no observed difference in early or in-hospital mortality. CONCLUSION: This study contributes to the body of literature regarding the association between hypoCa and traumatic injury in the pediatric population. Hypocalcemia was associated with increased blood product requirements without a difference in prehospital transfusion requirements, suggesting a possible independent association. Further prospective studies are needed to better understand this relationship. LEVEL OF EVIDENCE: Therapeutic/Care Management; Level IV.
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Hipocalcemia , Heridas y Lesiones , Humanos , Niño , Calcio , Estudios Retrospectivos , Transfusión Sanguínea , Mortalidad Hospitalaria , Puntaje de Gravedad del Traumatismo , Heridas y Lesiones/complicaciones , Heridas y Lesiones/terapiaRESUMEN
INTRODUCTION: With the emergence of whole blood (WB) in trauma resuscitation, cost-related comparisons are of significant importance to providers, blood banks, and hospital systems throughout the country. The objective of this study was to determine if there is a transfusion-related cost difference between trauma patients who received low titer O+ whole blood (LTO+WB) and component therapy (CT). METHODS: A retrospective review of adult and pediatric trauma patients who received either LTO+WB or CT from time of injury to within 4 hours of arrival was performed. Annual mean cost per unit of blood product was obtained from the regional blood bank supplier. Pediatric and adult patients were analyzed separately and were compared on a cost per patient (cost/patient) and cost per patient per milliliter (cost/patient/mL) basis. Subgroup analysis was performed on severely injured adult patients (Injury Severity Score, >15) and patients who underwent massive transfusion. RESULTS: Prehospital LTO+WB transfusion began at this institution in January 2018. After the initiation of the WB transfusion, the mean annual cost decreased 17.3% for all blood products, and the average net difference in cost related to component blood products and LTO+WB was more than $927,000. In adults, LTO+WB was associated with a significantly lower cost/patient and cost/patient/mL compared with CT at 4 hours ( p < 0.001), at 24 hours ( p < 0.001), and overall ( p < 0.001). In the severely injured subgroup (Injury Severity Score, >15), WB was associated with a lower cost/patient and cost/patient/mL at 4 hours ( p < 0.001), 24 hours ( p < 0.001), and overall ( p < 0.001), with no difference in the prehospital setting. Similar findings were true in patients meeting massive transfusion criteria, although differences in injury severity may account for this finding. CONCLUSION: With increased use of LTO+WB for resuscitation, cost comparison is of significant importance to all stakeholders. Low titer O+ WB was associated with reduced cost in severely injured patients. Ongoing analyses may improve resource utilization and benefit overall healthcare cost. LEVEL OF EVIDENCE: Therapeutic/Care Management; Level IV.
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Transfusión Sanguínea , Heridas y Lesiones , Adulto , Humanos , Niño , Bancos de Sangre , Resucitación , Puntaje de Gravedad del Traumatismo , Costos de la Atención en Salud , Heridas y Lesiones/terapia , Transfusión de Componentes SanguíneosRESUMEN
BACKGROUND: Significant increases in firearm-related mortality in the US pediatric population drive an urgent need to study these injuries to drive prevention policies. The purpose of this study was (1) to characterize those with and without readmissions, (2) to identify risk factors for 90-day unplanned readmission, and (3) to examine reasons for hospital readmission. METHODS: The 2016-2019 Nationwide Readmission Database of the Healthcare Cost and Utilization Project was used to identify hospital admissions with unintentional firearm injury in patients younger than 18 years. Ninety-day unplanned readmission characteristics were assessed and detailed. Multivariable regression analysis was used to assess factors associated with unplanned 90-day readmission. RESULTS: Over 4 years, 1,264 unintentional firearm injury admissions resulted in 113 subsequent readmissions (8.9%). There were no significant differences in age or payor, but more women (14.7% vs. 23%) and older children (13-17 years [80.5%]) had readmissions. The mortality rate during primary hospitalization was 5.1%. Survivors of initial firearm injury were more frequently readmitted if they had a mental health diagnosis (22.1% vs. 13.8%; p = 0.017). Readmission diagnosis included complications (15%), mental health or drug/alcohol (9.7%), trauma (33.6%), a combination of the prior three (28.3%), and chronic disease (13.3%). More than a third (38.9%) of the trauma readmissions were for new traumatic injury. Female children, those with longer lengths of stay, and those with more severe injuries were more likely to have unplanned 90-day readmissions. Mental health and drug/alcohol abuse diagnoses were not an independent predictor for readmission. CONCLUSION: This study provides insight into the characteristics of and risk factors for unplanned readmission in the pediatric unintentional firearm injury population. In addition to using prevention strategies, the utilization of trauma-informed care must be integrated into all aspects of care for this population to help minimize the long-term psychological impact of surviving firearm injury. LEVEL OF EVIDENCE: Prognostic and Epidemiological; Level IV.