Intracranial hemorrhages in patients with COVID-19: a systematic review of the literature, regarding six cases in an Amazonian population / Hemorragias intracranianas em pacientes com COVID-19: uma revisão sistemática da literatura, a propósito de seis casos na população amazônica

Abstract Background Coronavirus disease 2019 (COVID-19) has emerged as a public health emergency worldwide, predominantly affecting the respiratory tract. However, evidence supports the involvement of extrapulmonary sites, including reports of intracranial hemorrhages. Objective To describe six original cases and review the literature on intracranial hemorrhages in patients diagnosed with COVID-19 by molecular methods. Methods A systematic literature review was performed on MEDLINE, PubMed, and NCBI electronic databases to identify eligible studies. Of the total 1,624 articles retrieved, only 53 articles met the inclusion criteria. Results The overall incidence of intracranial hemorrhage in patients hospitalized for COVID-19 was 0.26%. In this patient group, the mean age was 60 years, and the majority were male (68%) with initial respiratory symptoms (73%) and some comorbidity. Before the diagnosis of hemorrhage, 43% of patients were using anticoagulants, 47.3% at therapeutic doses. The intraparenchymal (50%) was the most affected compartment, followed by the subarachnoid (34%), intraventricular (11%), and subdural (7%). There was a predominance of lobar over non-lobar topographies. Multifocal or multicompartmental hemorrhages were described in 25% of cases. Overall mortality in the cohort studies was 44%, while around 55% of patients were discharged from hospital. Conclusion Despite the unusual association, the combination of these two diseases is associated with high rates of mortality and morbidity, as well as more severe clinicoradiological presentations. Further studies are needed to provide robust evidence on the exact pathophysiology behind the occurrence of intracranial hemorrhages after COVID-19 infection.

Resumo Antecedentes A COVID-19 emergiu como uma emergência de saúde pública em todo o mundo, proporcionando lesão principalmente do trato respiratório. No entanto, várias evidências apontam para acometimento de sítios extrapulmonares, incluindo relatos de hemorragias intracranianas. Objetivo Descrever seis casos originais e revisar a literatura sobre hemorragias intracranianas em pacientes com diagnostico de COVID-19 por métodos moleculares. Métodos A revisão sistemática da literatura foi feita nas bases de dados eletrônicas da MEDLINE, PubMed e NCBI para identificar os estudos elegíveis. Do total de 1.624 artigos recuperados, apenas 53 artigos preencheram os critérios de inclusão. Resultados A incidência geral de hemorragia intracraniana nos pacientes internados por COVID-19 foi de 0,26%. A média de idade foi de 60 anos, e a maioria dos pacientes era do sexo masculino (68%) com sintomas respiratórios iniciais (73%) e alguma comorbidade. Antes do diagnóstico de hemorragia, 43% estavam em uso de anticoagulantes, 47,3% destes em doses terapêuticas. O compartimento mais acometido foi o intraparenquimatoso (50%), seguido do subaracnoideo (34%), intraventricular (11%) e subdural (7%). Houve predomínio de topografias lobares sobre as não-lobares. Hemorragias multifocais ou multicompartimentais foram descritas em 25% dos casos. A mortalidade geral nos estudos de coorte foi de 44%, enquanto houve alta hospitalar em cerca de 55% dos pacientes. Conclusão Apesar da associação incomum, a combinação dessas doenças está relacionada com altas taxas de mortalidade e morbidade, bem como apresentações clínico-radiológicas mais graves. Mais estudos são necessários para oferecer evidências robustas sobre a fisiopatologia exata por trás da ocorrência de hemorragias intracranianas após infecção por COVID-19.

Características de la trombosis venosa cerebral en pacientes de dos hospitales universitarios de Colombia en el período 2018-2020 / Characteristics of cerebral venous thrombosis in patients from two university hospitals in Colombia between 2018-2020

Introducción. La trombosis venosa cerebral es una causa infrecuente de enfermedad cerebrovascular que viene en aumento a nivel mundial. A pesar de ello, actualmente, en Colombia no se cuenta con estudios suficientes que nos permitan caracterizar epidemiológicamente la enfermedad en nuestra población para identificar los factores de riesgo y las complicaciones más frecuentes en nuestro medio. Objetivo. Describir las características clínicas, demográficas y radiológicas, y los factores de riesgo de una serie de pacientes con trombosis venosa cerebral de dos hospitales de Colombia. Materiales y métodos. Es un estudio descriptivo retrospectivo de pacientes hospitalizados, atendidos en el servicio de neurología de dos hospitales de Bogotá desde diciembre de 2018 hasta diciembre del 2020. Resultados. Se incluyeron 33 pacientes. Las frecuencias más altas correspondieron a mujeres en edad fértil, en puerperio (n=7; 33,3 %) y pacientes con patologías autoinmunes (n=10; 30,3 %). El síntoma inicial más común fue la cefalea (n=31; 93,9 %), seguido de focalización neurológica (n=9; 27,2%) y crisis epiléptica (n=8; 24,2 %). El 51 % (n=17) de los pacientes tuvo un examen físico normal. El infarto venoso cerebral se presentó en el 21,1 % (n=7), la hemorragia subaracnoidea en el 12,1 % (n=4) y el hematoma intraparenquimatoso en el 9 % (n=3) del total de pacientes. El 60,6 % (n=20) quedó con nivel independiente en la escala funcional de Barthel. Ningún paciente falleció. Conclusiones. Se encontraron características sociodemográficas, clínicas y radiológicas similares a lo reportado en la literatura mundial. Con respecto a las diferencias, se encontró en nuestro estudio compromiso de la circulación venosa cerebral profunda en un porcentaje ligeramente mayor a lo descrito, pero sin aumento de complicaciones, ni mortalidad.

Introduction. Cerebral venous thrombosis is an uncommon cause of cerebrovascular disease, which has been increasing worldwide. In Colombia, there are not enough recent studies that allow us to determine epidemiological characteristics of the disease in our population to identify more frequent risk factors and complications according to our living conditions. Objective. To describe clinical, demographic, and radiographic characteristics, and risk factors in a cohort of patients with cerebral venous thrombosis attended at two hospitals in Colombia. Materials and methods. Retrospective descriptive study with patients treated in the hospitalization neurology service of two hospitals in Bogotá, Colombia from December 2018 to December 2020. Results. Thirty-three patients were included. There was a higher incidence of cerebral venous thrombosis in women of childbearing age in the puerperium (n=7; 33.3%) and associated with autoimmune diseases (n=10; 30.3%). The most common initial symptom was headache (n=31; 93.9 %), followed by neurological focal signs (n=9; 27.2%) and seizures (n=8; 24.2%). Fifty-one percent (n=17) of the patients had a normal physical examination. Cerebral venous infarction occurred in 21.1 % (n=7), subarachnoid hemorrhage in 12.1 % (n=4), and intraparenchymal hematoma in 9 % (n=3) of all the patients. Sixty-point six percent (n=20) of the patients had a total independent Barthel functional scale. None of those died. Conclusions. We found similar sociodemographic, clinical, and radiography characteristics to those reported in the world literature. Regarding the differences, deep cerebral venous circulation was higher than that described in previous studies but without complications increase or mortality.

Instrumento predictivo de rotura de aneurismas intracraneales en pacientes de Sancti Spiritus, Cuba

Fundamento: la estratificación del riesgo de rotura de los aneurismas intracraneales es importante para decidir la conducta ante aquellos pacientes con aneurismas que son incidentales o asintomáticos. No existe consenso para determinar la realización de intervención quirúrgica o seguimiento médico de estos pacientes. Objetivo: elaborar un instrumento predictivo de rotura de aneurismas intracraneales incidentales. Métodos: se incluyó una muestra de 152 pacientes con diagnóstico, mediante angiografía por tomografía axial computarizada, de aneurismas intracraneales saculares rotos (n=138) y no rotos(n=22). Se trabajó con 160 imágenes de aneurismas intracraneales. Los 152 pacientes fueron divididos, al azar, en un grupo de desarrollo que corrrespondió a 95 pacientes, 100 imágenes de aneurismas y un grupo de validación que incluyó 57 pacientes con 60 imágenes de aneurismas. Se realizaron mediciones y segmentaciones de los aneurismas; se obtuvieron nueve factores morfológicos. Se realizó una combinación multivariante, mediante regresión logística múltiple, que expresó seis factores demográficos, clínicos y mofológicos predictivos obtenidos de los expedientes clínicos de los pacientes. La selección para inclusión de los factores fue realizada a partir de un consenso de 15 expertos con más de 15 años de experiencia en el tema. Se confeccionó un nomograma representativo del modelo con los predictores significativos. Se evaluó la calibración y la precisión del instrumento predictivo representado por un modelo y su nomograma. Resultados: el instrumento quedó conformado por cinco predictores que resultaron estadísticamente significativos asociados con la rotura en el análisis multivariado: el sexo femenino, la razón de aspecto, el mayor ancho del domo, el volumen, y el índice de no esfericidad. El nomograma mostró una buena calibración y discriminación (grupo de entrenamiento: área bajo la curva = 99 %; grupo de validación área bajo la curva=99 % ). Conclusiones: el instrumento predictivo, validado y representado por el nomograma es un modelo útil para estratificar el riesgo de rotura de aneurismas. Puede emplearse para el seguimiento de aneurismas considerados de menor riesgo.

Background: the stratification of the intracranial aneurysms rupture risk is important to decide the strategy before those patients with aneurysms that are incidental or asymptomatic. There is no consensus to determine the performance of surgical intervention or medical follow-up of these patients. Objective: to develop a predictive instrument for incidental intracranial aneurysm rupture. Methods: a sample of 152 patients diagnosed by computed tomography angiography of ruptured (n=138) and unruptured (n=22) saccular intracranial aneurysms was included. The 160 images of intracranial aneurysms were studied. The 152 patients were randomly divided into a development group consisting of 95 patients, 100 aneurysm images, and a validation group consisting of 57 patients, 60 aneurysm images. Measurements and segmentations of the aneurysms were performed; nine morphological factors were obtained. A multivariate combination was performed, using multiple logistic regression, which expressed six predictive demographic, clinical and morphological factors obtained from the clinical records of the patients. The selection for inclusion of the factors was made from a consensus of 15 experts with more than 15 years of experience in the subject. A representative nomogram of the model with the significant predictors was made. Calibration and accuracy of the predictive instrument represented by a model and its nomogram were evaluated. Results: the instrument was made up of five predictors that were statistically significant associated with breakage in the multivariate analysis: female sex, aspect ratio, the greatest width of the dome, volume, and non-sphericity index. The nomogram showed good calibration and discrimination (training group: area under the curve = 99%; validation group area under the curve = 99% ). Conclusions: the predictive instrument, validated and represented by the nomogram, is a useful model to stratify the risk of aneurysm rupture. It can be used to monitor aneurysms considered to be of lower risk.

Factor VIII prophylactic therapy reduces neurological complications in patients with Hemophilia A / Terapia profilática com Fator VIII reduz complicações neurológicas em paciente com Hemofilia A

ABSTRACT Background: Bleeding in hemophiliacs can cause complications in the central and peripheral nervous system (CNS and PNS). The incidence of intracranial hemorrhage has reduced after the introduction of prophylactic treatment with factor VIII or IX, but the benefits of this therapy have not yet been evaluated on PNS complications. Objective: The aim of this study was to determine the prevalence of neurological complications in hemophiliacs and verify the effect of prophylactic therapy in these patients, including PNS disorders. Methods: We retrospectively evaluated the prevalence of CNS and PNS disorders caused by bleeding in hemophiliacs seen at the Hemocentro Regional Norte, Ceará, Brazil, from 1992 to 2018, and we compared the incidence in different periods (before and after the introduction of prophylactic treatment in 2011). Results: Of 75 hemophilia A patients evaluated (4.61/100.000 population), 13.3% (n=10) had either CNS (n=5) or PNS (n=5) disorders secondary to bleeding. Patients submitted to factor VIII replacement prophylactic therapy were less likely to have CNS events: from 1992 to 2011, 5 of 63 patients had CNS disease, while from 2011 to 2018, there were no new cases (p=0.0181). From 2011 to 2018, 5 PNS events occurred in patients without prophylactic therapy, whereas none occurred in those covered by prophylactic therapy (5/20 versus 0/29, p=0.0081). Conclusions: The prevalence of neurological complications in hemophiliacs in our cohort is similar to other studies. Similar to CNS, prophylactic therapy also reduces the risk of PNS complications. This is the first report in the literature showing this benefit.

RESUMO Antecedentes: O sangramento em hemofílicos causa complicações no sistema nervoso central e periférico (SNC e SNP). A incidência de hemorragia intracraniana diminuiu após a introdução da profilaxia com fator VIII ou IX, entretanto esse benefício ainda não foi avaliado no SNP. Objetivo: O objetivo deste estudo foi determinar a prevalência de complicações neurológicas em hemofílicos, verificando o efeito da terapia profilática também no SNP. Métodos: Avaliamos retrospectivamente a prevalência de complicações neurológicas causadas ​​por sangramentos em hemofílicos atendidos no Hemocentro Regional Norte, Ceará, Brasil, de 1992 a 2018, comparando a incidência em diferentes períodos (antes e depois da introdução do tratamento profilático em 2011). Resultados: Foram avaliados 75 pacientes com hemofilia A (4,61/100 mil habitantes). Deles, 13,3% (n=10) tinham distúrbios do SNC (n=5) ou do SNP (n=5) secundários a hemorragias. Os pacientes submetidos à terapia profilática com fator VIII apresentaram menor probabilidade de eventos do SNC: de 1992 a 2011, cinco de 63 pacientes apresentaram hemorragia no SNC, enquanto de 2011 a 2018 não ocorreram novos casos (p=0,0181). De 2011 a 2018, cinco eventos no SNP ocorreram entre pacientes sem terapia profilática, e nenhum ocorreu entre aqueles cobertos pela profilaxia (5/20 × 0/29, p=0,0081). Conclusões: A prevalência de complicações neurológicas em hemofílicos em nossa coorte é similar à de outros estudos. Assim como no SNC, a terapia profilática também reduz o risco de complicações no SNP. Este é o primeiro relato na literatura a mostrar esse benefício.

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.

Hemorragia cerebelosa por trombocitopenia inmune

RESUMEN La trombocitopenia inmune primaria (PTI) es un desorden que tiene como característica el aumento de la destrucción de las plaquetas o disminución en su producción resultando niveles bajos de las mismos y un riesgo aumentado de sangrado. Se presenta el caso de un paciente de sexo masculino, de 27 años de edad, previamente sano, que acude a consulta por cuadro de 48 hs de evolución de aparición de petequias. Durante su evolución presenta hemorragia cerebelosa con hipertensión endocraneana aguda que lo lleva al óbito a pesar del tratamiento.

ABSTRACT Primary immune thrombocytopenia (ITP) is a disorder characterized by an increase in the destruction of platelets or a decrease in their production, resulting in low levels of platelets and an increased risk of bleeding. We present the case of a 27-year-old male patient, previously healthy, who came to consultation due to a 48-hour history of appearance of petechiae. During his evolution, he presented cerebellar hemorrhage with acute endocranial hypertension that led him to death despite treatment.

Revisión teórica de los factores de riesgos asociados a hemorragia digestivas altas en pacientes geriátricos / Theoretical review of risk factors associated with high digestive hemorrhage in geriatric patients

La hemorragia digestiva alta aguda (HDAA) es la emergencia gastrointestinal más frecuente. En los ancianos se asocia con tasas de internación, morbilidad y mortalidad más elevadas que en las personas jóvenes, probablemente por la prevalencia más elevada de múltiples comorbilidades, como las enfermedades pulmonares y cardiovasculares. Objetivo: Describir los fundamentos teóricos de los factores de riesgos asociados a hemorragia digestivas altas. Metodología: Documental, descriptiva. Resultados: diversos estudios demuestran que los factores de riesgos asociados a las hemorragias digestivas altas son: la úlcera péptica gastroduodenal y várices esofágicas, complicaciones graves con alto riesgo de mortalidad en pacientes de edades avanzadas, por lo que se debe actuar con rapidez, eficacia y efectividad. Conclusión: la bibliografía consultada revela: que a pesar de los avances de la tecnología y de la farmacología, la tasa de mortalidad global por hemorragia digestiva alta no ha mejorado. Esta realidad se explica por el aumento significativo en la edad de los pacientes que hoy ingresan a los servicios de urgencias con esta complicación. En la HDAA es fundamental intentar identificar y tratar la fuente del sangrado, para lo cual resulta esencial la endoscopia temprana(AU)

Acute upper gastrointestinal bleeding (HDAA) is the most frequent gastrointestinal emergency. In the elderly, it is associated with higher hospitalization, morbidity and mortality rates than in young people, probably due to the higher prevalence of multiple comorbidities, such as pulmonary and cardiovascular diseases. Objective: To describe the theoretical foundations of the risk factors associated with upper gastrointestinal bleeding. Methodology: Documentary, descriptive. Results: various studies show that the risk factors associated with upper gastrointestinal bleeding are, gastroduodenal peptic ulcer and esophageal varices, serious complications with a high risk of mortality in elderly patients, therefore, it is necessary to act quickly, efficiently and effectiveness. Conclusion: the bibliography consulted reveals: that despite advances in technology and pharmacology, the overall mortality rate from upper gastrointestinal bleeding has not improved. This reality is explained by the significant increase in the age of patients who today enter the emergency services with this complication. In HDAA it is essential to try to identify and treat the source of the bleeding, for which early endoscopy is essential(AU)

Complicaciones oculares asociadas a la fiebre por dengue / Ophthalmic complications associated to dengue fever

RESUMEN La infección por el virus del dengue va en aumento en las regiones tropicales de Asia, África y América. Se estima que se producen de 50 a 100 millones de casos de esta enfermedad al año. En los últimos tiempos han aumentado los reportes de manifestaciones oculares en estos pacientes, las cuales ocurren en un rango de 5 a 7 días posteriores al inicio de los síntomas, aunque también pueden ocurrir más tarde, y generalmente existe buen pronóstico visual. Se realiza una revisión bibliográfica con el objetivo de ampliar el conocimiento sobre un tema poco tratado en nuestro medio. Se consultaron fundamentalmente artículos científicos de revistas, publicados en las bases de datos PubMED y Cochrane, así como textos básicos que abordan este tema en los últimos 5 años, a través de Google académico como motor de búsqueda. Se constató que se han reportado manifestaciones oculares en pacientes con dengue que van desde hallazgos en el segmento anterior sin afectación visual, hasta cuadros más intensos que interesan las estructuras del polo posterior del ojo. La fisiopatología de estos hallazgos aún se encuentra en estudio y no existe consenso para su tratamiento. A pesar de que el pronóstico visual de estas alteraciones es bueno, se reportan casos donde no es así y se precisa mayor comprensión sobre la fisiopatología de estas para un abordaje terapéutico más adecuado en cada caso(AU)

ABSTRACT Infection by dengue virus is on the increase in tropical regions of Asia, Africa and America. It has been estimated that 50 to 100 million cases of this disease occur every year. Recent years have witnessed a rise in the number of reports of ocular manifestations in dengue patients. These manifestations appear 5 to 7 days after symptom onset, though they could also occur later, and the visual prognosis is generally good. A bibliographic review was conducted with the purpose of broadening knowledge about a topic not commonly dealt with in our environment. The search was mainly aimed at scientific papers from journals, published in the databases PubMed and Cochrane, as well as basic texts addressing the study topic in the last 5 years, using the search engine Google Scholar. Ocular manifestations were found to have been reported in dengue patients. These range from findings in the anterior segment without any visual alteration to more intense episodes affecting the structures of the posterior pole of the eye. The physiopathology of these findings is still being studied, and there is no consensus about its treatment. Despite the good visual prognosis of these alterations, cases have been reported of a different outcome. Therefore, a better understanding is required of their physiopathology to achieve a more appropriate therapy for each case(AU)

Statistical association of rs2243250 polymorphism of IL4 gene and hemorrhagic stroke in Brazilian population / Associação estatística entre o polimorfismo rs2243250 no gene da IL-4 e o AVC hemorrágico na população brasileira

ABSTRACT Interleukin-4 (IL-4) has great significance in inflammatory processes in cases of stroke, since it is able to polarize microglia to the antiinflammatory phenotype called M2. This study analyzed if the variation between TT genotype and the other genotypes (CT and CC), in -589 (rs2243250) polymorphism of IL4 gene, has association with the prognosis of hemorrhagic stroke (HS) and with clinical aspects which are risk factors for cerebrovascular diseases. The result of this study shows that there is no statistical association of the IL4 polymorphism with either prognosis or clinical aspects in HS patients.

RESUMEN La interleucina-4 (IL-4) tiene gran importancia en los procesos inflamatorios en casos de accidente cerebrovascular (ACV), puesto que hace que las microglías sean polarizadas hacia el fenotipo antiinflamatorio M2. Este estudio analizó si la variación entre el genotipo TT y los demás genotipos (CT y CC), en el polimorfismo -589 (rs2243250) del gen IL4, posee asociación con el pronóstico de ACV hemorrágico y con aspectos clínicos que son factores de riesgo para enfermedades cerebrovasculares. El resultado de este estudio enseña que no hay asociación estadística del polimorfismo del IL4 ni con el pronóstico ni con los aspectos clínicos de pacientes con ACV hemorrágico.

RESUMO A interleucina-4 (IL-4) tem grande importância nos processos inflamatórios em casos de acidente vascular cerebral (AVC), uma vez que ela é capaz de polarizar micróglias para o fenótipo anti-inflamatório chamado M2. Este estudo analisou se a variação entre o genótipo TT e os demais genótipos (CT e CC), no polimorfismo -589 (rs2243250) do gene IL4, possui associação com o prognóstico de AVC hemorrágico e com aspectos clínicos que são fatores de risco para doenças cerebrovasculares. O resultado deste estudo mostra que não há associação estatística do polimorfismo do IL4 nem com prognóstico nem com os aspectos clínicos dos pacientes com AVC hemorrágico.

Intoxicación con rodenticidas anticoagulantes: serie de casos y revisión de literatura / Intoxication with anticoagulant rodenticides: Case series and review of the literature

Introducción. Los superwarfarinicos (SWF) son una de las herramientas utilizadas por el ser humano para el control de roedores y a la vez son tóxicos para el hombre y pueden conducir a la muerte sin los debidos cuidados en su uso.Casos clinicos. Tres pacientes masculinos, que consultaron por sangrados (gingivorragia, epistaxis, hematuria, hemartrosis y hematomas cutaneos) asociados a alteraciones del coagulograma (Tiempo de protrombina (TP) y tiempo de tromboplastina parcial (KPTT) prolongados). Todos tuvieron exposición a superwarfarinicos. Nuestro servicio no dispone del análisis de SWF en suero. Se administró vitamina K1 en los tres pacientes y plasma fresco congelado (PFC) en uno solo (sangrado mayor: hematuria). El seguimiento se realizó mediante controles seriados de coagulograma y su evolución fue favorable. Discusión. En todos los casos, el diagnóstico de intoxicación por SWF fue clínico, basado en caracteristicas clínicas de pacientes y alteraciones en sus parámetros de coagulación, y debido a imposibilidad de derivación de análisis a otro laboratorio. Se realizo tratamiento especifico (vitamina K1 y PFC) segun recomendación de expertos, ya que no hay hasta la fecha, estudios clinicos que evaluen las diferentes opciones terapéuticas. Conclusión. La intoxicación por SWF aunque no es frecuente, debe sospecharse en casos de paciente con coagulopatia sin otras causas que puedan justificarlo. El manejo del cuadro tóxico es la reposición de vitamina k y de plasma fresco congelado, en casos donde se necesite una rápida corrección de la alteración hemostática, como los sangrados mayores. Es imprescindible la oportuna consulta con médicos hematólogos y/o la consulta con un centro regional de control de intoxicaciones para todas las exposiciones sospechosas por SWF.

Introduction. Superwarfarinics (SWF) are one of the tools used by humans for rodent control. They are toxic to humans and can lead to death without due care in its use. Clinical cases. Three male patients, who consulted due to bleeding (gingivorragia, epistaxis, hematuria, hamartrosis and skin hematomas) associated with coagulogram alterations (prolonged protombine time (PT) and partial thromboplastin time (KPTT)). All them exposure to superwarfarinics. SWF serum analysis was not available in our hospital. Vitamin K1 was administered in all three patients and fresh frozen plasma (PFC) in only one (major bleeding: hematuria). The followup was performed by serial coagulogram controls and the evolution was. Discussion. In all cases, the diagnosis of SWF intoxication was clinical, based on clinical characteristics of patients and alterations in their coagulation parameters, due to the impossibility of deriving the analysis of SWF in serum to another laboratory. Specific treatment was carried out (vitamin k and PFC) according to experts' recommendation, since there are no clinical studies to evaluate the different therapeutic options to date. Conclusion. SWF poisoning, although not frequent, should be suspected in patients with coagulopathy without other causes that may justify it. The management of toxic symptoms is the administration of vitamin K1 and fresh frozen plasma, in cases where a rapid correction of the haemostatic alteration is required, such as major bleedings. It is essential to consult with hematologists and / or consult a regional poison control center for all suspicious exposures by superwarfarins.

Comparison on cognitive performance among schoolchildren born prematurely according to the presence of intracranial hemorrhage in the neonatal period / Comparação do desempenho cognitivo entre escolares nascidos prematuros segundo presença de hemorragia intracraniana no período neonatal

Abstract Objectives: to compare the cognitive performance of schoolchildren born prematurely according to the presence of intracranial hemorrhage (ICH) during the neonatal period. Methods: a cross-sectional cohort study of schoolchildren between the ages of 6-8 years old, born prematurely with or without a history of neonatal ICH. Between January and December 2015, some children were followed up at the outpatient clinic of a tertiary hospital and underwent a cognitive evaluation by using the Wechsler Intelligence Scale for Children, Third Edition (WISC-III) and they were divided into two groups: those with no history of ICH (control group) and those with ICH (case group), confirmed by a transfontanelar ultrasound in the prenatal period. Results: 39 schoolchildren were included, 21 cases and 18 controls. There was no difference in gestational age or chronological age at evaluation between the groups. Also there was no significant difference in subtest scores between the groups. Conclusions: WISC-III evaluated the cognitive performance in children, born preterm, aged 6-8 years old, and had neonatal ICH did not differ from those of their peers without a history of ICH. These findings suggest that, in preterm infants, a neonatal diagnosis of ICH may not be associated with cognitive performance at school age and this should be investigated through a longitudinal study.

Resumo Objetivos: comparar o desempenho cognitivo de escolares, nascidos prematuramente, segundo a presença de hemorragia intracraniana (HIC) no período neonatal. Métodos: corte transversal de uma coorte de escolares com idade entre seis e oito anos que nasceram prematuramente e apresentaram ou não HIC, realizado entre janeiro e dezembro de 2015, acompanhados em ambulatório de seguimento de hospital terciário e submetidos à avaliação cognitiva, através da Escala de Inteligência Wechsler para Crianças-3ª edição (WISC-III), que foram divididos em dois grupos: sem HIC (grupo controle - GC) e com HIC (grupo de casos - GH) comprovada através de exame ultrassonográfico transfontanelar no período perinatal. Resultados: foram incluídos 39 escolares, 18 no GC e 21 no GH. Não se observou dife-rença entre os grupos quanto à idade gestacional e idade cronológica na qual eles foram avaliados. Não foi encontrada diferença estatística entre os grupos estudados nos valores dos subtestes. Conclusões: o desempenho cognitivo de crianças nascidas pré-termo que tiveram HIC não difere daquele que não a apresentaram quando avaliadas pelo WISC-III na faixa etária de seis a oito anos. Sugere-se que o diagnóstico neonatal de HIC pode não estar associado ao desempenho cognitivo de prematuros, na idade escolar, o que deverá ser investigado através de estudo longitudinal.

Analysis of predisposing factors for chronic subdural hematoma recurrence

SUMMARY OBJECTIVES: To identify recurrence and its potential predisposing factors in a series of 595 patients with an initial diagnosis of Chronic Subdural Hematoma (CSDH) who underwent surgical treatment at a Reference Hospital of São Paulo. METHODS: A retrospective descriptive study, in which the medical records of all patients with a CSDH diagnosis submitted to surgical treatment from 2000 to 2014 were analyzed. RESULTS: The final study population consisted of 500 patients with a diagnosis of CSDH (95 patients with a diagnosis of Cystic Hygroma were excluded), of which 27 patients presented recurrence of the disease (5.4%). There were no statistically significant differences in relapses when cases were stratified by gender, laterality of the first episode or surgical procedure performed in the first episode (trepanning vs. craniotomy). It was possible to demonstrate an age-related protective factor, analyzed as a continuous variable, regarding the recurrence of the CSDH, with a lower rate of recurrence the higher the age. CONCLUSIONS: The results indicate that, among possible factors associated with recurrence, only age presented a protective factor with statistical significance. The fact that no significant difference between the patients submitted to trepanning or craniotomy was found favors the preferential use of burr-hole surgery as a procedure of choice due to its fast and less complex execution.

RESUMO OBJETIVOS: Identificar a taxa de recidiva e seus potenciais fatores predisponentes em série de 595 pacientes consecutivos com diagnóstico inicial de hematoma subdural crônico (HSDCr) submetidos a tratamento cirúrgico em hospital terciário de São Paulo nos últimos 14 anos. MÉTODOS: Estudo retrospectivo descritivo, no qual foram analisados os prontuários de todos os pacientes com diagnóstico de HSDCr submetidos a tratamento cirúrgico, no período de 2000 a 2014. RESULTADOS: A amostra final consistiu em 500 pacientes com diagnóstico de HSDCr — foram excluídos 95 pacientes com diagnóstico de higroma cístico —, dos quais 27 sujeitos apresentaram recidiva do quadro (5,4%). Não foram observadas diferenças estatisticamente significativas nas recidivas quando os casos foram estratificados por gênero, lateralidade do primeiro episódio ou procedimento cirúrgico executado no primeiro episódio (trepanação vs. craniotomia). Foi possível demonstrar um fator protetor relacionado à idade, analisado como variável contínua, no que diz respeito à recidiva do HSDCr, com menor taxa de recidiva com o avançar desta CONCLUSÕES: Os resultados indicam que, dentre os fatores possivelmente associados à recidiva, apenas a idade se apresentou como fator protetor com significância estatística. O fato de não ser demonstrada diferença significativa entre os pacientes submetidos a tratamentos cirúrgicos por trepanação ou por craniotomia favorece o uso preferencial da trepanação como procedimento de escolha, em virtude de apresentar execução rápida e menos complexa.

Luis Agote y su aporte a la ciencia universal / Luis Agote and His Contribution to the Universal Science

Los tres grandes problemas de la cirugía presentes hasta mediados del siglo XIX fueron el dolor, las muertes provocadas por infecciones y el shock hemorrágico. El uso de drogas anestésicas dio fin al dolor intraoperatorio. Años más tarde se introdujeron la antisepsia y la asepsia, que permitieron que las cirugías no terminaran en cuadros infecciosos graves. Sin embargo, las muertes por shock hemorrágico continuaron durante los años subsiguientes. Lo que significaba un dilema aún sin resolver era la posibilidad de reponer la sangre perdida, para lo cual se habían intentado distintos métodos que resultaron fallidos. A comienzos del siglo XX, con el descubrimiento de los grupos sanguíneos, se efectuaron los primeros intentos de transfusiones con cierta seguridad, pero la sangre se coagulaba impidiendo el buen resultado de la técnica. En 1914 el Dr. Luis Agote, médico, investigador y político argentino, descubrió el método del citratado, que hacía incoagulable la sangre; cuando se iniciaba la Primera Guerra Mundial, realizó la primera transfusión, y el procedimiento luego permitió salvar vidas transfundiendo a los heridos en los campos de batalla. Agote decidió no patentar su descubrimiento, convencido de que pertenecía a la humanidad toda.

Hemorragias após hemodiálise em paciente com insuficiência renal. Previsíveis? Estudo de casos e revisão da literatura / Hemorrhagia after hemodialysis in a patient with renal failure. Preventable? Case studies and literature revision

A doença renal crônica cursa com alterações hematológicas na série vermelha (anemia) e nas plaquetas (alteração funcional). A anemia estaria relacionada a fatores tanto de hemorragias quanto de tromboses. As plaquetas por disfunção de sua coagulação intrínseca pela qualidade da plaqueta circulante. Somente a alteração da coagulação intrínseca pela uremia proporciona o surgimento de complicações em até 50% dos pacientes dialíticos. Neste trabalho, em três casos, observou-se hemorragias em paciente renais crônicos que apresentavam elevado grau de morbi-mortalidade. A avaliação criteriosa destes pacientes urêmicos pode contribuir para minimizar eventos adversos em seus cuidados

The chronic kidney disease presents hematological on red cell distribution width and platelets (function abnormalities). Anemia was related with both hemorrhagic or thrombosis events. The platelets had disfunction because their alteration in the quality of the circulant platelet. Uremia alone can contribute up to 50% of the diabetic patients. In our work, in three cases, hemorrhagic events associated with end stage kidney disease had a higher degree of morbid-mortality. The strict evaluation of these patients can minimize adverse events

Experiencia de embolización de malformaciones arterio-venosas cerebrales en Hospital de Especialidades Carlos Andrade Marín, 2016-2017 / Experience of embolization of cerebral arteriovenous malformations in Carlos Andrade Marín Specialties Hospital, 2016-2017

INTRODUCCIÓN. La morbimortalidad de las malformaciones arterio-venosas cerebrales se encuentra dada principalmente por hemorragias. OBJETIVO. Conocer la situación de la embolización de malformaciones arterio-venosas en el Hospital de Especialidades Carlos Andrade Marín. MATERIALES Y MÉTODOS. Estudio observacional, retrospectivo en pacientes con diagnóstico de malformaciones arterio-venosas cerebral que fueron sometidos a intervención radiológica, durante el período de enero 2016 a diciembre 2017, en el Hospital de Especialidades Carlos Andrade Marín. RESULTADOS. 17 pacientes con criterios de inclusión, la mayoría con malformaciones arterio-venosas única y clasificación Spetzler Martin tipo I y II. El 52,9% fue sometido al procedimiento con antecedente de hemorragia intracerebral. Luego del procedimiento se alcanzó el 61,5% de obliteración en promedio, con 5,8% de pacientes que tuvo hemorragia intracerebral postprocedimiento. DISCUSIÓN. El uso de la embolización permite la oclusión del nido vascular displásico y del flujo de arterias nutricias profundas, disminuyendo la hemorragia intracerebral como complicación, siendo un tratamiento precursor de complementos quirúrgicos o como tratamiento único. El promedio de obliteración se encuentra dentro del rango reportado en la literatura, con un solo caso que tuvo complicación post procedimiento. Son necesarios estudios complementarios donde se especifiquen las variables de los tratamientos post procedimiento y un seguimiento para valorar supervivencia. CONCLUSIÓN. Resultados similares a los reportados en la literatura, se consideró la embolización como una alternativa del tratamiento, principalmente como precursor a la cirugía en malformaciones arterio-venosas con clasificación Spetzler Martin mayor a III.

INTRODUCTION. The morbidity and mortality of cerebral arteriovenous malformations is mainly due to hemorrhages. OBJECTIVE. To know the situation of the embolization of arterio-venous malformations in the Carlos Andrade Marín Specialties Hospital. MATERIALS AND METHODS. Observational, retrospective study in patients with a diagnosis of cerebral arteriovenous malformations who underwent radiological intervention, during the period from January 2016 to December 2017, at the Carlos Andrade Marín Specialties Hospital. RESULTS 17 patients with inclusion criteria, most with single arteriovenous malformations and Spetzler Martin type I and II classification. 52,9% underwent the procedure with a history of intracerebral hemorrhage. After the procedure, 61,5% of obliteration was achieved on average, with 5,8% of patients having post-procedural intracerebral hemorrhage. DISCUSSION. The use of embolization allows the occlusion of the dysplastic vascular nest and the flow of deep nutritional arteries, decreasing intracerebral hemorrhage as a complication, being a precursor treatment of surgical complements or as a single treatment. The average of obliteration is within the range reported in the literature, with only one case that had post procedure complication. Complementary studies are needed where the variables of the post-procedure treatments and a follow-up to assess survival are specified. CONCLUSION. Results similar to those reported in the literature, embolization was considered as an alternative treatment, mainly as a precursor to surgery in arteriovenous malformations with Spetzler Martin classification greater than III.

TNFA gene in Brazilian patients with hemorrhagic stroke or cerebral aneurysm / Gene TNFA em pacientes brasileiros com acidente vascular encefálico hemorrágico ou aneurisma cerebral

ABSTRACT Introduction: Many cerebrovascular diseases display a relation with inflammatory processes. Furthermore, the influence of several polymorphisms has been studied to improve the knowledge of physiological mechanisms of the nervous system. Objectives: The aim of this study was to identify if there was an association between a polymorphism in -308 position of the TNFA gene and the development of hemorrhagic stroke or aneurysm in Distrito Federal, Brazil. Methods: We collected the clinical information and the medical records from hemorrhagic stroke or aneurysm patients. The occurrence of stroke or aneurysm was confirmed by computed tomography (CT) or magnetic resonance image (MRI). The TNFA genotypes were determined by polymerase chain reaction restriction fragment length polymorphism. Results: The AG genotype appears to decrease the occurrence of hemorrhagic stroke or aneurysm in people between 45-63 years. Our study was the first to investigate this association in a Brazilian sample, although a previous report showed a similar effect with ischemic stroke in a Chinese population. Conclusion: The TNFA -308 AG genotype is associated with a decreased risk of aneurysm or hemorrhagic stroke in a population from the capital of Brazil, Distrito Federal.

RESUMO Introdução: Muitas doenças cerebrovasculares relacionam-se com processos inflamatórios, portanto, a influência de vários polimorfismos em doenças tem sido estudada para melhorar o conhecimento sobre os mecanismos fisiológicos do sistema nervoso. Objetivo: Identificar a associação entre um polimorfismo na posição -308 do gene TNFA e o desenvolvimento de acidente vascular encefálico hemorrágico (AVEH) ou aneurisma em pacientes de uma base hospitalar do Distrito Federal, Brasil. Métodos: Foram coletados os prontuários e as informações clínicas de pacientes com AVEH ou aneurisma. A caracterização dos grupos caso foi confirmada por tomografia computadorizada (TC) ou ressonância nuclear magnética (RNM). Os genótipos do gene TNFA foram determinados por técnica do polimorfismo de comprimento dos fragmentos de restrição do produto obtido pela reação em cadeia da polimerase (PCR). Resultados: O genótipo AG parece diminuir a ocorrência de AVEH ou aneurisma em indivíduos entre 45 e 63 anos. Nosso estudo foi o primeiro a investigar essa associação em uma amostra brasileira, embora um relatório anterior tenha mostrado efeito semelhante com o acidente vascular encefálico isquêmico em uma população chinesa. Conclusão: O genótipo TNFA -308 AG está associado à diminuição do risco de aneurisma ou AVEH em uma população da capital do Brasil, Distrito Federal.

Determinación de sangre oculta en heces (SOH) por Inmunocromatografía en estudiantes primer año de la Facultad de Ciencias Farmacéuticas y Bioquímicas de la UMSA y su entorno familiar, en la Gestión 2016 / Determination of occult blood in heces (SOH) by immunocromatography in students first year of the Faculty of Pharmaceutical and Biochemical Sciences of the UMSA and its family environment, in management 2016

El presente es un estudio de tipo descriptivo no experimental para determinar sangre oculta de heces (SOH) en población aparentemente sana. La presencia de SOH, puede estar relacionada con varias causas, como gastritis, úlcera péptica o duodenal, parasitosis intestinal, sangrado de encías o cáncer colorectal. Se analizaron 1093 muestras de heces fecales provenientes de estudiantes que cursaban la cátedra de Anatomía y Fisiología de la FCFB de la UMSA y su entorno familiar. Utilizando el método inmunocromatográfico (SUMASOHF), todos los investigadores que participaron fueron capacitados para realizar el análisis. Las muestras se procesaron, por duplicado y aquellas que dieron resultado positivo, se procesaron nuevamente. Los resultados se analizaron con el programa estadístico SPSS 22. Se encontró presencia de SOH en el 16,1% de todas las muestras procesadas. El porcentaje de casos positivos de SOH fue ligeramente superior en el género masculino y en el grupo etario de 61-80 años. En el grupo de fumadores se reveló un 24.50% de casos positivos y un 19.20% en las personas que declararon consumir bebidas alcohólicas. También se consideraron otras causas de SOH, como la insuficiencia cardiaca, la gastritis, la ingestión de medicamentos como la aspirina y el ibuprofeno. A todos los casos que dieron positivo de SOH, se recomendó consultar con su médico para realizar otros exámenes más específicos. En conclusión la pérdida de sangre por heces fecales es un problema, que puede pasar desapercibido por la ausencia de sintomatología; por lo tanto, sugerimos que esta prueba sea incluida en la evaluación rutinaria de pacientes.

A descriptive, non-experimental study was carried out to determine the presence of fecal occult blood (SOH) considering its relation with the early diagnosis of colorectal cancer. We analyzed 1093 fecal samples from students who were in the Chair of Anatomy and Physiology of the FCFB of UMSA and their family environment. Using the immunochromatographic method (SUMASOHF), all the researchers who participated were trained to perform the analysis. The samples were processed in the laboratory of Anatomy and Physiology, using a inmunocromatographic metod, (SUMASOHF). The investigatours were trained to perform the test and the samples were processed with the supervision of the professors. All samples were processed in duplicate and all positive samples were reprocessed. All results were registrated in the correspondy datasheet. The data were analysed using the a statistical program SPSS 22. We found presence of fecal occult blood in 16.1 % of the samples. The percentage of positive cases of SOH in the male gender was slightly higher compared to the number of positive cases was higher in goner of 61 to 80 age group. In the group of smokers revealed a 24.50% of positive cases and 19.20% in the group that consumes alcohol. Other causes of SOH were also investigated such as heart failure, gastritis, ingestion of drugs such as aspirin and ibuprofen. In some cases, no probable cause of bleeding was found. It was recommended to all participant with a positive test, consult their doctors for more specific diagnosis. Here were concluded that stool blood loss is a problem, which is ignored since there is absence of symptomatology, therefore, we suggest that this test be included in the routine evaluation of patients.

Physicians are not well informed about the new guidelines for the treatment of acute stroke / Os médicos não estão bem informados sobre as novas diretrizes para o tratamento de AVC agudo

ABSTRACT Treatment of cerebrovascular disease has advanced rapidly in the last two decades. Recent data has added challenges to the treatment of ischemic stroke in the acute phase. Objective: To evaluate the knowledge of physicians about the treatment of ischemic stroke in the acute phase. Methods: An online questionnaire was submitted to all physicians enrolled in the Regional Council of Medicine in Brazil. Results: 456 physicians from different specialties answered the questions. Most of them did not know that mechanical endovascular thrombectomy is often considered as the gold standard treatment in cases of ischemic stroke in the acute phase; and 85% of them did not realize that thrombectomy together with intravenous thrombolysis was possible. The maximum time to act in an acute event also presented many divergences, even with regard to the infusion of rtPA. The lack of structure, medication and absence of a neurologist were considered the main barriers to treatment. Conclusion: Physicians are not well informed about the new guidelines for the treatment of acute stroke. Most physicians incorrectly answered most of the questions on the questionnaire.

RESUMO O tratamento da doença cerebrovascular tem avançado rapidamente nas últimas duas décadas. Dados recentes acrescentaram desafios ao tratamento do AVC isquêmico na fase aguda (AIFA). Objetivo: Avaliar o conhecimento médico sobre o tratamento do AIFA. Métodos: Um questionário on-line foi submetido a todos os médicos inscritos no Conselho Regional de Medicina. Resultados: 456 médicos de diferentes especialidades responderam às perguntas. A maioria deles não sabia que a trombectomia endovascular mecânica é freqüentemente considerada como tratamento padrão-ouro nos casos de AIFA. 85% não realizariam trombectomia junto com a trombólise intravenosa. O tempo máximo para atuar no evento agudo também apresentou muitas divergências, mesmo em relação à infusão de rtPA. A falta de estrutura, medicação e neurologista foram consideradas as principais barreiras ao tratamento. Conclusão: Os médicos não estão bem informados sobre as novas diretrizes para o tratamento do AIFA. A maioria dos médicos errou a maioria das perguntas desse questionário.

Manifestaciones retinianas secundarias a Dengue. Reporte de caso / Retinal manifestations after Dengue fever. A case report

Introducción: El Dengue es una infección viral aguda, causada por un virus de la familia Flaviviridaeque se transmite por la picadura del mosquito Aedes Aegypti. Se han descrito manifestaciones oculares asociadas a esta enfermedad como son: maculopatía, hemorragias retinales, neuritis óptica, retinitis y vasculitis, aunque son poco frecuentes. Objetivo: Presentar un caso con manifestaciones oculares después de ser diagnosticado con Dengue. Presentación del caso: Paciente masculino de 58 años de edad que 1 mes después de haber padecido Dengue comienza a presentar visión borrosa en ambos ojos, constatándose al examen oftalmológico del fondo de ojo, hemorragias maculares y exudados escasos en algunos cuadrantes en ambos ojos. Recibió tratamiento con antiinflamatorios sistémicos por 2 meses y mejoró su sintomatología inicial, así como el cuadro clínico fondoscópico. Conclusiones: El Dengue es una enfermedad con repercusión no solo sistémica sino también oftalmológica lo que, aunque no es muy frecuente, debe tenerse presente. Resultaron de considerable utilidad la clínica, la retinofoto y la tomografía de coherencia óptica (OCT) para el seguimiento de las alteraciones retinianas halladas posterior a su aparición. Los esteroides fueron utilizados con éxito para el tratamiento en este caso(AU)

Introduction: Dengue is an acute viral infection, caused by a virus of flaviviridae family that is transmitted by the Aedes Aegypti mosquito sting. Ocular manifestations associated to this illness have been described such as maculopathy, retinal hemorrhages, optic neuritis, retinitis and vasculitis, although they are not frequent. Objective: To present a case that is not frequently reported in own context. Case presentation: 58-year-old male patient that suffered from dengue and 1 month after that he began having blurred vision in both eyes. In the ophthalmic examination, it was detected that he had macular hemorrhages and exudates in some quadrants of both eyes. He was treated with systemic antiinflammatories for 2 months. There was an improvement of his initial symptoms and the clinical features of the ocular fundus with this treatment. Conclusions: Dengue is an illness that has not only a systemic impact but also causes ophthalmic damage that we should consider. The clinical manifestations, the retinophoto and the optical coherence tomography (OCT) were considerably useful for the follow-up of the retinal alterations found post-dengue. Steroids were used successfully for the treatment of this case(AU)

Hemobilia secundaria a aneurisma de la arteria hepática / Hemobilia Secondary to Aneurysm of the Hepatic Artery

Resumen Se presenta el caso de un paciente con hemorragia de vías digestivas altas e ictericia asociadas a un aneurisma de la arteria hepática derecha.

Abstract We present the case of a patient with upper digestive tract hemorrhaging and jaundice due to an aneurysm of the right hepatic artery.