Hematoma retroperitoneal espontáneo en pacientes con neumonía grave por SARS-CoV-2 / Spontaneous retroperitoneal hematoma in patients with severe SARS-CoV-2 pneumonia

Recientemente se han publicado varios casos de hematomas retroperitoneales espontáneos (Hre) en el contextode infección por SarS-CoV-2. este estudio presenta una revisión sistemática de la literatura con el objetivo deprofundizar en esta infrecuente asociación. Se identificaron 32 casos de Hre, el 28,1 % con enfermedad COVID-19 crítica. el 68,7 % recibió anticoagulacióncon HBpM y el 15,6 % con heparina sódica. La mediana de días hasta el diagnóstico fue de 10,5 (rango de 0-38).en el 31,2 % de los casos se optó por manejo conservador, mientras que otro 31,2 % requirió angioembolización. Se comunicaron 10 exitus (31,2 %), 6 probablemente relacionados con el Hre.existen hipótesis acerca de la relación entre la infección por SarS-CoV-2 y los fenómenos hemorrágicos. Se handescrito dos mecanismos que explicarían la coagulopatía: la unión al receptor aCe2 y la acción directa del virussobre el endotelio vascular. Por otra parte, la disfunción plaquetaria, la trombocitopenia inmune y la respuesta alSIrS, así como los microtraumas secundarios al esfuerzo tusígeno, la ventilación mecánica invasiva o los cambiosposturales, sugieren un origen multicausal del Hre.La literatura sobre esta asociación es escasa. Dado el exceso de morbimortalidad que supone, se considera nece-sario profundizar en su investigación.(AU)

Recently, cases of spontaneous retroperitoneal haematomas (SrH) in the context of SarS-CoV-2 infection havebeen published. this study presents a systematic review with the aim of further investigating this rare association. Thirty-two cases were identified, with a 28,1 % of critical patients. a total of 68,7 % received anticoagulation withLMWH, and a 15,6 % with UFH. the median number of days to diagnosis was 10,5 (0-38). Conservative manage-ment was chosen in 31,2 %, while another 31,2 % required angio-embolisation. ten exitus (31,2 %) were reported,6 related to SrH. There are hypotheses on the link between SarS-CoV-2 infection and haemorrhagic phenomena. two mechanismshave been described that would explain coagulopathy: the binding of SarS-CoV-2 to the aCe2 receptor and itsdirect action on the vascular endothelium. Furthermore, the platelet dysfunction, immune thrombocytopenia andSIrS, added to the endothelial disruption in retroperitoneal vessels, as well as microtrauma secondary to coughstress, invasive mechanical ventilation and/or postural changes, suggest a multicausal origin of SrH. The literature concerning this association is scarce. Given the excess morbidity and mortality involved, it is consid-ered necessary to investigate it further.(AU)

Primer registro de angioembolización de arterias hipogástricas en contexto de trauma pélvico en Uruguay / First report of hypogastric arteries angioembolization within the context of pelvic trauma in Uruguay / Primeiro registro de angioembolização de artérias hipogástricas no contexto de traumatismo pélvico no Uruguai

Resumen: El trauma pélvico grave es una situación de extrema gravedad con alta mortalidad, siendo la principal causa de muerte el shock hemorrágico persistente, secundario a varias fuentes de sangrado óseas, viscerales y principalmente venosas y arteriales. Las medidas iniciales van dirigidas a disminuir el volumen de la cavidad pélvica y la reposición hemostática. En los últimos años evidencia creciente respalda la utilización de la angioembolización en el manejo de estos pacientes. Presentamos a través de un caso clínico el primer reporte en Uruguay de angioembolización no selectiva de ambas arterias hipogástricas en el manejo del trauma pélvico grave. Discutiremos a través de un caso clínico la fisiopatología del trauma pélvico grave y principalmente las indicaciones, resultados y complicaciones de la angioembolización.

Summary: Pelvic trauma is an extremely severe condition accounting for high mortality rates, and is the first cause of death in persistent hemorrhagic shock, secondary to several sources of bleeding, such as bone, viscera and mainly veins and arteries. Initial measures aim to reduce the volume of the pelvic cavity and to restore hemostasis. In recent years, growing evidence supports the use of angioembolization in the handling of these patients. The study presents, through a clinical case, the first report in Uruguay of non-selective angioembolization of both hypogastric arteries in the handling of severe pelvic trauma. We will discuss the pathophysiology of severe pelvic trauma through a clinical case, mainly in terms of indications, results and complications of angioembolization.

Resumo: O traumatismo pélvico grave é uma situação extremamente complicada com alta mortalidade, sendo a principal causa de morte o choque hemorrágico persistente, secundário a várias fontes de sangramento ósseas, viscerais e principalmente venosas e arteriais. As medidas iniciais têm como objetivo diminuir o volume da cavidade pélvica e a reposição hemostática. Nos últimos anos, evidências crescentes apoiam o uso da angioembolização no gerenciamento desses pacientes. Apresentamos um caso clínico com o primeiro registro no Uruguai de angioembolização não seletiva de ambas as artérias hipogástricas no manejo de traumas pélvicos graves. Discutiremos a fisiopatologia do traumatismo pélvico grave e principalmente as indicações, resultados e complicações da angioembolização.

Fractura de pelvis inestable. Estudio de cohorte longitudinal / Unstable pelvic Fractures. A Cohort Study

Introducción No hay consenso sobre el paradigma de tratamiento óptimo para pacientes que se presentan con fractura de pelvis inestable y más si se asocia a inestabilidad hemodinámica. El estudio se realizó para determinar la experiencia en el manejo de pacientes con una fractura inestable de la pelvis, con o sin inestabilidad hemodinámica, en un centro de referencia de trauma de Medellín, Colombia, como un paso inicial para avanzar protocolos adaptados a las necesidades particulares de nuestra población. Materiales & Métodos Se realizó un estudio retrospectivo, observacional que incluyó pacientes con fractura pélvica por traumatismo. Se recogieron datos demográficos, signos vitales de admisión, presencia de shock al ingreso (según escala ATLS), método de control de hemorragias, requerimiento de transfusión y mortalidad global. Se realizó análisis de un subgrupo de pacientes que se presentaron con signos de Shock hemodinámica grave asociado, definido como ATLS III- IV al ingreso y requerimiento de hemoderivados de más de 8UI en las primeras 48 horas. Resultados Un total de 567 pacientes con fractura pélvica de cualquier tipo, entre enero de 2011 y diciembre de 2018, identificados en las bases de datos de la institución, de los cuales 149 pacientes presentaron un patrón de fractura inestable de la pelvis (FIP). El 68.1% de los pacientes eran varones, con una edad media de 34 RIQ; 30 años y una puntuación de gravedad de la lesión (ISS) de 34 RIQ: 20. La mortalidad hospitalaria fue del 13.3%. La angioembolización y la colocación de fijadores externos fueron el método más común de control de hemorragias utilizado. Un total de 37 pacientes (27%) se sometieron intervención para el control de la hemorragia en las primeras 48 horas. Hubo 37 pacientes con fractura pélvica admitidos en estado de shock grave o requerimiento de más de 8U hemoderivados, 17 pacientes requirieron intervención en la pelvis, únicas o combinadas. La mortalidad calculada para estos pacientes fué de 32%. Discusión Los pacientes con FPI admitidos en nuestra institución tienen una alta mortalidad y es aún mayor en los pacientes quienes se presentan con Shock grave. Se utilizaron varios métodos para el control de la hemorragia de forma semejante a las indicadas en la literatura actual. Requerimos un esfuerzo institucional sostenido para tratar las fracturas pélvicas y disminuir la mortalidad de nuestros pacientes y conocer nuestra población nos permite orientar las estrategias de manejo.

Background There is no consensus about treatment for patients with an unstable pelvic fracture and even less when hemodynamic instability is associated with. Study was conducted to determine the outcome in the management of patients with an unstable fracture of the pelvis, with or without hemodynamic instability, in a trauma referral center in Medellín, Colombia. Methods A retrospective, longitudinal cohort study was conducted including patients with pelvic fracture due to trauma. Demographic data, vital signs on admission, presence of hemodynamic shock on admission (according to the ATLS scale), method of bleeding control, transfusion requirement and overall mortality rate were collected. An analysis was performed on a subgroup of patients who presented with signs of associated severe hemodynamic shock, defined as ATLS III-IV upon admission and a requirement for blood products of more than 8IU in the first 48hours. Results A total of 567 patients with any type of pelvic fracture, between January 2011 and December 2018, identified in the institution's databases, of which 149 patients presented an unstable pelvic fracture pattern (FIP). 68.1% of the patients were male, with a mean age of 34 IQR; 30 years and an Injury Severity Score (ISS) of 34 IQR: 20. Hospital mortality was 13.3%. Angioembolization and external fixator placement were the most used method of bleeding control. A total of 37 patients (27%) underwent intervention to control bleeding in the first 48hours. There were 37 patients with pelvic fracture admitted in a state of severe shock or requiring more than 8U of blood products, 17 patients required intervention in the pelvis, using single or combined ways. The mortality calculated for these patients was 32%. Discussion Patients with unstable pelvis fractures admitted to our institution have a high mortality rate and it is even higher in patients who present with severe shock. Various methods were used to control bleeding similar to those indicated in the current literature. We require a sustained institutional effort to treat pelvic fractures and reduce the mortality of our patients, and knowing our population characteristcs allows us to guide management strategies.

Pelvic fractures with associated retroperitoneal hematoma: time until angioembolization and results. / Fracturas de pelvis con hematoma retroperitoneal asociado: tiempo hasta la angioembolización y resultados.

INTRODUCTION: Two areas of controversy in the management of bleeding pelvic fractures are the need to perform angioembolization (AE) in patients with a retroperitoneal hematoma (RPH) but no contrast extravasation (CE) on Computerized Tomography (CT) and/or angiography, and the delay to AE. Our main objective was to assess whether there had been differences in the percentage and delay to AE between patients admitted on weekdays versus off-hours (weekends and admission after 3pm) at our hospital. Our hypothesis was that angiography and AE would be more frequent on weekdays, and the time delay would be longer during off-hours, with a higher mortality in this latter group for a similar overall severity. A secondary objective was to assess the correlation between CE on CT scan and angiography. METHODS: Retrospective review of two cohorts of patients with RPH from a pelvic fracture during a period of 24 years. Patients were divided depending on the time of arrival (Group A: weekdays, and Group B: off-hours). The decision to perform angiography and AE was made by the general surgeons on call, in consensus with the interventional radiologist. We analyzed demographics, mechanism of injury, associated injuries, physiologic and anatomic trauma scores, CE on CT scan, need of AE, Intensive Care Unit (ICU) stay and mortality. RESULTS: 104 patients were admitted with RPH from a pelvic fracture. We performed AE in 63 cases (61%). The groups were comparable in the variables analyzed. In 70% of patients in group A, angiography was done, vs 57% in group B, with the same median time delay. CE on CT scan was seen in 53 out of 96 patients and confirmed by angiography in 45 (85%) of them. No significant differences were found in mortality between the two groups. CONCLUSIONS: There was a short delay from admission to AE, even during off-hours, and a good correlation of CE on CT scan and angiography.

Evolution of the treatment of splenic injuries: from surgery to non-operative management. / Evolución en el tratamiento conservador del traumatismo esplénico contuso.

The spleen is one of the most frequently injured organs in blunt abdominal trauma. In the past decades, the treatment of patients with blunt splenic injury has shifted from operative to non-operative management. The knowledge of physiology and immunology of the spleen have been the main reasons to develop techniques for splenic salvage. The advances in high-resolution imaging techniques, as well as less invasive procedures, including angiography and angioembolization, have allowed a higher rate of success in the non-operative management. Non-operative management has showed a decrease in overall mortality and morbidity. The aim of this article is to analyze the current management of splenic injury based on a literature review of the last 30 years, from we have identified 63,205 patients. This would enable the surgeons to provide the best care possible in every case.

Angioembolización selectiva: un valioso adyuvante en la estrategia de control de daños en heridas faciales por proyectil de arma de fuego: informe de un caso / Selective angioembolization: a valuable adjunct in damage control strategies applied to facial gunshot wounds: case report

Introducción: La angioembolización selectiva es una alternativa no quirúrgica para controlar el sangrado facial traumático. Caso clínico: Informamos el caso de un paciente con herida facial por proyectil de arma de fuego tratado con angioembolización selectiva como adyuvante al control de daños, con lo que se logró detener la hemorragia. Conclusiones: La angioembolización selectiva es un valioso adyuvante en la detención del sangrado facial traumático.

BACKGROUND: Selective angioembolization (SAE) is a nonsurgical alternative for controlling traumatic facial bleeding. CLINICAL CASE: We report a case of a patient who sustained a facial gunshot wound. The patient was treated with SAE as an adjuvant to damage control, leading to the arrest of hemorrhage. CONCLUSIONS: SAE is a valuable adjuvant in arresting traumatic facial bleeding.