Massive Pulmonary Embolism Related to a Patient With Heart Failure Secondary to Stress Cardiomyopathy: A Case Report.

Venous thromboembolism (VTE) is a common disease, which includes deep venous thrombosis (DVT) and pulmonary embolism (PE). It is the third most common cardiovascular disorder, affecting predominantly the male elderly population. Stress cardiomyopathy (SC) is a transitorily cardiovascular condition produced after an emotional or physical trigger, and it features signs and symptoms of acute coronary syndrome. Its pathophysiological mechanisms remain unclear, and SC has also been related to critical complications such as heart failure, arrhythmias, left ventricular outflow obstruction, and thromboembolic events. This case report highlights the association of PE and SC that might play a pathophysiological role.

Propagation of THz radiation in air over a broad range of atmospheric temperature and humidity conditions.

As the need for higher data rates for communication increases, the terahertz (THz) band has drawn considerable attention. This spectral region promises a much wider bandwidth and the transmission of large amounts of data at high speeds. However, there are still challenges that need to be addressed before the THz telecommunications technology hits the consumer market. One of the recurring concerns is that THz radiation is greatly absorbed by atmospheric water-vapor. Although many studies have presented the attenuation of THz signals under different atmospheric conditions, these results analyze specific temperature or humidity values, leaving the need for a more comprehensive analysis over a wider range of climate conditions. In this work, we present the first study of the attenuation of THz radiation over a broad range of temperatures and humidity values. It is worth noticing that all of our measurements have been undertaken at atmospheric pressure unlike many previous studies where the pressure was not kept constant for various temperatures. Furthermore, we extend our analysis beyond the impact of absolute humidity on the bit error rate in THz communications. We also discuss the refractivity of the atmosphere, examining its variations across different temperatures and humidity levels. THz propagation is studied using two different measurement systems, a long-path THz time-domain spectrometer as well as a quasi-optic setup with vector network analyze. We also compare the results with the ITU-R P.676-13 propagation model. We conclude that the attenuation at the absorption peaks increases linearly with water content and has no dependence on the temperature, while the refractive index, away from absorption lines, namely at 300 GHz shows a sub-linear increase with humidity.

Polymyositis: A Case Report.

Inflammatory myopathies are a group of diseases whose common pathway is immune-mediated muscle damage, one of which is polymyositis. The definition of polymyositis is controversial, with proponents advocating a definition based on immunohistochemical and histopathological findings in muscle biopsies, while other proponents advocate a definition based on clinical manifestations and histopathological findings. Polymyositis is a quite rare disease that is clinically characterized by progressive proximal muscle weakness with a symmetric distribution. Within the diagnostic approach, laboratory studies show elevation of sarcoplasmic enzymes; nerve conduction tests are performed, which may aid in distinguishing myopathic causes of weakness from neuropathic disorders; and muscle biopsy is considered the gold standard to diagnose inflammatory myopathy and to distinguish the subclasses. We report the case of a 61-year-old male patient who presented generalized symmetrical weakness, predominantly in the upper extremities, and dysphagia, whose laboratory studies, autoantibodies, and muscle biopsy were confirmatory of this entity.

Temperature dependence of the dielectric function of dehydrated biological samples in the THz band.

Terahertz technology has demonstrated enormous potential for the analysis of biological systems and the diagnosis of some medical conditions, given its high sensitivity to detect water content. In previously published papers, effective medium theories are used to extract the water content from the terahertz measurements. When the dielectric functions of water and dehydrated bio-material are well known, the volumetric fraction of water can be left as the only free parameter in those effective medium theory models. While water complex permittivity is very well known, the dielectric functions of dehydrated tissues are normally measured for each individual application. In previous studies, it has been traditionally assumed that, unlike water, the dielectric function of the dehydrated tissues is temperature independent, measuring it only at room temperature. Yet, this is an aspect that has not been discussed and that is relevant in order to get THz technology closer to clinical and in-the-field applications. In this work, we present the characterization of the complex permittivity of dehydrated tissues; each studied at temperatures ranging from 20°C to 36.5°C. We studied samples of different organism classifications to have a wider confirmation of the results. We find that, in each case, the dielectric function changes of dehydrated tissues caused by temperature are smaller than for water across the same temperature interval. Yet, the changes in the dielectric function of the dehydrated tissue are not negligible and should, in many cases, be taken into account for the processing of terahertz signals that interact with biological tissues. While this study gives a first introduction into the probable relevancy of temperature-dependent optical behavior of biological samples, this work only focuses on the experimental proof for this relationship and will, therefore, not give a deeper analysis of how the underlying models have to be modified.

Acute Bilateral Stroke in a Moyamoya Patient With High Risk of Thrombosis Due to Multiple Myeloma With Chemotherapy.

Multiple myeloma (MM) is a common hematologic malignancy. Multi-agent chemotherapy and anti-myeloma immunomodulatory drugs increase the incidence of arterial and venous thrombosis. We present a moyamoya patient with MM who had a stroke shortly after induction chemotherapy. We present the case of an adult female patient who arrived at the ER due to automatism seizures, dysarthria, and left hemiparesis. The patient had a medical history of MM and underwent six cycles of induction chemotherapy (cyclophosphamide, dexamethasone, thalidomide, and bortezomib). MRI of the brain showed bilateral watershed ischemic strokes. Angiogram showed occlusion at the supraclinoid segment of both internal carotid arteries consistent with moyamoya. The patient was discharged with full-dose anticoagulation, levetiracetam, and physical therapy. At three years of follow-up, the patient has no recurrent cerebrovascular disease. MM patients treated with thalidomide/lenalidomide in combination with high-dose dexamethasone, doxorubicin, or multiagent chemotherapy should be on anticoagulation for venous thromboembolism (VTE) prophylaxis. There are no clear recommendations for arterial thrombosis prevention. Moyamoya is a vasculopathy characterized by progressive intracranial artery stenosis with a high risk of ischemic stroke, ischemia recurrence, and intracerebral hemorrhage. Despite the risk of intracerebral hemorrhage, we decided on anticoagulation due to the high risk of thrombosis due to MM, multi-agent chemotherapy, and moyamoya.

Supplements Are Not a Synonym for Safe: Suspected Liver Injury From Ashwagandha.

Background: As patients look more to alternative herbal and dietary supplements to boost energy and mood, reports are increasing of unintended adverse effects, particularly to the liver. Case Presentation: We report a case of a 48-year-old man with a history of severe alcohol use disorder who presented to the emergency department with a cholestatic pattern of liver injury in the setting of alcohol and use of a testosterone-boosting supplement containing ashwagandha. Conclusions: Drug-induced liver damage should be considered in patients with alcohol use disorder who present with a cholestatic pattern of liver injury. Although many natural substances are well tolerated, others can have unanticipated and harmful adverse effects and drug interactions. Future research should identify not only potentially harmful substances, but also which patients may be at greatest risk.

Detección rápida de antígenos de Streptococcus pyogenes en pacientes de 0 a 14 años asistidos en dos servicios de urgencia pediátrica (14/2/2018-13/4/2018) / Rapid detection of Streptococcus pyogenes' antigens in patients of 0 to 14 years of age, assisted in two pediatric emergency wards (2/14/2018-4/13/2018) / Detecção rápida de antígenos de Streptococcus pyogenes em pacientes de 0 a 14 anos de idade assistidos por emergência pediátrica (14/2/2018-13/4/2018)

Introducción: las infecciones estreptocócicas pueden presentarse con fiebre, inflamación faringoamigdalina con o sin exudados, petequias en el paladar, adenitis cervical, exantema escarlatiniforme y / o dolor abdominal. Resulta útil en área de urgencia disponer de pruebas de detección rápida de antígenos de S. pyogenes (DRASP) de alta especificidad y sensibilidad algo menor. Objetivos: conocer la utilidad de un test de DRASP en 2 servicios de Urgencia Pediátrica, describiendo las características clínicas y epidemiológicas de los pacientes estudiados durante el período de la investigación y su correlación con el cultivo de exudado faríngeo mediante el cálculo de sensibilidad (S), especificidad (E), valor predictivo positivo (VPP) y valor predictivo negativo (VPN). Material y métodos: estudio prospectivo, observacional, transversal en dos servicios de emergencia pediátrica. Se incluyeron niños a los que se les realizó DRASP y exudado faríngeo (EF) entre el 14 de febrero y el 13 de abril de 2018. Se registró: sexo, edad, motivo de consulta, diagnóstico, tratamiento, destino, resultado del test y de cultivo faríngeo. Se calcularon S, E, VPP y VPN. Resultados: n=241 niños. Rango 8 meses - 14 años, media 6 años. Consultaron por fiebre 103 niños (42,7%); por odinofagia 48, por erupción 11 y 47 por otros síntomas. Al 95% de los niños se le otorgó el alta. DRASP negativos 87,6% (N: 211) y positivos 12,9% (N: 31). EF negativos 80,1% (n: 193) y positivos para SßHGA en 13,7% (n: 33). La sensibilidad de la prueba fue del 52% y su especificidad del 93%. El VPP 55% y el negativo 92%. El diagnóstico más frecuente fue faringitis viral 132 (54,7%). Conclusiones: el test se aplicó fundamentalmente a escolares febriles, algunos con odinofagia. Contribuye a diferenciar en forma rápida la etiología y habilita a no usar antibióticos en caso de resultado negativo. Estos resultados avalan el uso de DRASP en la urgencia pediátrica.

Introduction: streptococcal infections can show fever, pharyngotonsillar inflammation with or without swabs, palatal petechiae, cervical adenitis, scarlatiniform rash and/or abdominal pain. Rapid detection tests for S. pyogenes antigens (DRASP) with high specificity and somewhat lower sensitivity are a useful at the Emergency Ward. Objectives: know the usefulness of a DRASP test in 2 Pediatric Emergency, describe the clinical and epidemiological characteristics of the patients studied during the research period and its correlation with the culture of pharyngeal exudates by calculating sensitivity (S) , specificity (S), positive predictive value (PPV), and negative predictive value (NPV). Material and Methods: prospective, observational, cross-sectional study carried out in two pediatric emergency wards. We included children who underwent DRASP and pharyngeal swab (PS) between February 14 and April 13, 2018. The following data were recorded: sex, age, reason for consultation, diagnosis, treatment, destination, test results and throat cultures. S, S, PPV and NPV were calculated. Results: n=241 children. Range 8 months - 14 years, average 6 years. 103 children (42.7%) consulted due to fever; 48 due to sore throat, 11 due to rash and 47 due to other symptoms. 95% of children were discharged. DRASP negative 87.6% (N: 211) and positive 12.9% (N: 31). Negative EP 80.1% (n: 193) and positive for SßHGA in 13.7% (n: 33). The test sensitivity was 52% and specificity 93%. The PPV 55% and the negative 92%. The most frequent diagnosis was viral pharyngitis 132 (54.7%). Conclusions: the test was applied mainly to febrile schoolchildren, some with odynophagia. A quick etiology differentiation is helpful, since it prevents antibiotics from being used in the event of a negative result. These results support the use of DRASP in pediatric emergency wards.

Introdução: as infecções estreptocócicas manifestam-se com febre, inflamação faringotonsilar com ou sem exsudado, petéquias palatinas, adenite cervical, erupção cutânea escarlatiniforme e/ou dor abdominal. Nos serviços de emergência é útil realizar testes de detecção rápida para antígenos de S. pyogenes (DRASP) com alta especificidade e sensibilidade um pouco mais baixa Objetivos: conhecer a utilidade do teste DRASP em 2 Emergências Pediátricas, descrever as características clínicas e epidemiológicas dos pacientes estudados durante o período da pesquisa e sua correlação com a cultura de exsudatos faríngeos por meio do cálculo de sensibilidade (S) , especificidade (S), positivo valor preditivo (VPP) e valor preditivo negativo (VPN). Material e métodos: estudo prospectivo, observacional, transversal, realizado em duas unidades de emergência pediátrica. Foram incluídas crianças que realizaram DRASP e swab faríngeo (PS) entre 14 de fevereiro e 13 de abril de 2018. Foram registrados os seguintes dados: sexo, idade, motivo da consulta, diagnóstico, tratamento, destino, resultados de exames e culturas de garganta. S, S, VPP e VPN foram calculados. Resultados: n=241 crianças. Faixa 8 meses - 14 anos, média 6 anos. 103 crianças (42,7%) consultadas por febre; 48 por dor de garganta, 11 por erupção cutânea e 47 por outros sintomas. 95% das crianças receberam alta. DRASP negativo 87,6% (N: 211) e positivo 12,9% (N: 31). EP negativo 80,1% (n: 193) e positivo para SßHGA em 13,7% (n: 33). A sensibilidade do teste foi de 52% e a especificidade de 93%. O PPV 55% e o negativo 92%. O diagnóstico mais frequente foi faringite viral 132 (54,7%). Conclusões: o teste foi aplicado principalmente em escolares febris, alguns com odinofagia. A rápida diferenciação etiológica é útil, pois evita o uso de antibióticos em caso de resultado negativo. Esses resultados apoiam o uso do DRASP em enfermarias de emergência pediátrica.

Riesgos a la Salud Mental de las Personas Cuidadoras durante la Pandemia por COVID-19 en México / Mental Health Risks of Caregivers during the COVID-19 Pandemic in Mexico

Resumen Diversos estudios han reportado que el cuidado informal de adultos mayores, personas con alguna enfermedad o discapacidad, e incluso el cuidado de menores de edad, tiene un impacto en la salud física y mental de las personas cuidadoras (PC). El objetivo del presente estudio fue identificar los riesgos a la salud mental de las PC, teniendo como referencia el concepto de "carga de cuidado" que alude a las demandas físicas, emocionales, sociales y/o económicas de las actividades de cuidado, y la tensión que estas producen. Los participantes respondieron a un tamizaje entre abril y diciembre de 2020, vía una plataforma electrónica, mismo que tuvo por objeto identificar y atender problemas de salud mental que pudieran presentarse o agravarse por la pandemia y las medidas de confinamiento adoptadas para mitigarla. Más de 51,000 personas reportaron ser PC de menores, adultos mayores y/o enfermos crónicos, lo que permitió identificar variaciones en la carga de cuidado considerando el impacto de distintos perfiles de cuidadores (según el tipo y número de personas dependientes). Las condiciones de salud mental evaluadas fueron estrés agudo, ansiedad generalizada, ansiedad por la salud y depresión. Los resultados confirman que las PC que cuidan más de un tipo de persona dependiente tienen mayores probabilidades de riesgo a desarrollar alguna de las condiciones de salud mental. Así mismo, quienes cuidaban alguna persona con enfermedad crónica fueron los más vulnerables, mientras que tener un menor de edad al cuidado actuó en alguna medida como un factor protector.

Abstract Several studies have reported that informal care of older adults, chronically ill, and children's, has an impact on physical and mental health of caregivers. The goal of this study was to identify mental health risks of caregivers, considering the concept of caregiver burden that points to the physical, emotional, social and/or economic demands of care activities, and the tension they produce. Participants answered a mental health screening (via an electronic platform) that intended to identify and attend mental health problems that could arise or be aggravated during the pandemic and confinement measures adopted to mitigate it. More than 51,000 people reported being caregivers of children, older people and/or chronically ill, which allows to identify variations in caregiver burden considering type and number of dependent people. The mental health conditions evaluated were acute stress, generalized anxiety, health anxiety, and depression. Results confirmed that caregivers who take care of more than one type of dependent are more likely to be at risk of developing any of the mental health conditions measured. Likewise, those who care for a chronically ill, were the most vulnerable and, to take care of children was at some extent a protective factor.

Repercusión de la pandemia por SARS-COV-2 sobre las consultas en los Servicios de Emergencia Pediátrica en Uruguay / Consequences of the SARS-COV-2 pandemic on Pediatric Emergency Services in Uruguay / Repercussão da pandemia de SARS-COV-2 nas consultas nos Serviços de Emergência Pediátrica do Uruguai

En marzo de 2020 se confirma el primer caso de enfermedad por coronavirus en Uruguay, recomendándose un confinamiento social. La atención sanitaria se redujo a servicios de urgencia y emergencia (SE). Objetivo: analizar las características de las consultas pediátricas en los SE del subsector público y privado en Uruguay, durante los primeros 4 meses de la pandemia por SARS-CoV-2. Metodología: estudio descriptivo, retrospectivo, multicéntrico. Resultados: participaron 23 SE de todas las regiones del país. Período 1 prepandemia: 14/03/19-29.07.19, período 2: 14/03/20-29/07/20 Consultas: período 1 n=121.116, período 2 n=33.099 (desciende 73%). Hospitalizaciones desde el SE: período 1 n= .6649 (tasa 5,5%). Período 2: n=2.948 (tasa 9,5%). Diagnósticos período 1: infección respiratoria aguda (IRA) alta 39.892 (33%), IRA baja 86.56 (7%), trauma menor 8.651 (7%), gastroenteritis 8.044 (6,6%), crisis asmática/CBO 7.974 (6,5%), lesiones 4.389 (3,6%), dolor abdominal 3.528 (3%), problemas de salud mental 859 (0,7%), convulsiones 758 (0,7%), patología social 678 (0,5%). Diagnósticos 2020: IRA alta 5.168 (16%), trauma menor 2.759 (8%), lesiones 2.652 (8%), dolor abdominal 1.494 (4,5%), gastroenteritis 1.296 (4%), asma/CBO 1.095 (3,3%), IRA baja 700 (2,1%), patología social 522 (1,6%), problemas de salud mental 471 (1,4%), convulsiones 408 (1,2%). Conclusiones: en los primeros meses de la pandemia hubo una reducción sostenida y significativo de consultas pediátricas en los SE. No hubo aumento en frecuencia absoluta de ninguno de los diagnósticos. Se registró un descenso histórico de las IRA bajas y las hospitalizaciones por esta causa en todo el país. Mantener una vigilancia de las consultas en los SE permitiría identificar e intervenir oportunamente si se produjeran cambios o situaciones de riesgo hasta el momento no detectadas.

In March 2020 the first case of coronavirus disease was confirmed in Uruguay, and lockdown was recommended. Health care services were reduced to Urgency and Emergency Services (ES). Objectives: to analyze the epidemiological characteristics of pediatric visits to the ES of the public and private subsector in Uruguay, during the first 4 months of the SARS-CoV-2 pandemic. Methods: descriptive, retrospective. Results: 23 institutions participated. 2 periods were considered: 1) pre-pandemic, 03/14/19 to 07/29/19, 2) 03/14/20 to 07/29/20. Visits: period 1: n=121,116 (< 15 years), period 2: n=33.099 (73% decrease). Hospital admissions: period 1: n=6,649 (rate 5.5). Period 2: n=2.948 (rate 9,5). Diagnoses period 1: High acute respiratory infection 39,892 (33%), low acute respiratory infection 8,656 (7%), minor trauma 8,651 (7%), gastroenteritis 8,044 (6,6%), asthmatic crisis/CBO 7.974 (6,5%), injuries 4,389 (3,6%), abdominal pain (3,528) 3%, mental health problems 859 (0.7%), seizures 758 (0.7%), social pathology 678 (0.5% ). 2020 diagnoses: high acute respiratory infection 5.168 (16%), minor trauma 2,759 (8%), injuries 2,652 (8%), abdominal pain 1,494 (4.5%), gastroenteritis 1,296 (4%), asthma/CBO 1,095 (3,3%), low acute respiratory infection 700 (2,1%), social pathology 522 (1,6%), mental health problems 471 (1,4%), seizures 408 (1,2%). Conclusions: in the first months of the pandemic there was a sustained and significant reduction in pediatric consultations in ES. There was no increase in absolute frequency of any of the diagnoses. There was a historical decrease in low respiratory infections and hospitalizations due to this cause in the whole country. Maintaining a surveillance of the visits in the ES would enable practitioners to identify and take action in case of changes or previously undetected risk situations.

Em março de 2020, foi confirmado o primeiro caso de doença por coronavírus no Uruguai, recomendando o confinamento. A assistência à saúde foi reduzida a serviços de urgência e emergência (SE). Objetivo: analisar as características das consultas pediátricas no SE do subsetor público e privado no Uruguai, durante os primeiros 4 meses da pandemia de SARS-CoV-2. Metodologia: estudo descritivo, retrospectivo, multicêntrico. Resultados: participaram 23 SEs de todas as regiões do país. Período pré-pandemia 1: 14/03/19-29/07/19, período 2: 14/03/20-29/07/20 Consultas: período 1 n=121.116, período 2 n=33.099 (redução de 73%) . Internações da SE: período 1 n= 0,6649 (taxa 5,5%). Período 2: n=2.948 (taxa de 9,5%). Diagnósticos do período 1: infecção respiratória aguda alta (IRA) 39.892 (33%), LRA baixa 86,56 (7%), trauma menor 8.651 (7%), gastroenterite 8.044 (6,6%), crise asmática/CBO 7.974 (6, 5% ), lesões 4.389 (3,6%), dor abdominal 3.528 (3%), problemas de saúde mental 859 (0,7%), convulsões 758 (0,7%), patologia social 678 (0,5%). Diagnósticos 2020: IRA alta 5.168 (16%), trauma leve 2.759 (8%), lesões 2.652 (8%), dor abdominal 1.494 (4,5%), gastroenterite 1.296 (4%), asma/CBO 1.095 (3, 3%), IRA baixa 700 (2,1%), patologia social 522 (1,6%), problemas de saúde mental 471 (1,4%), convulsões 408 (1,2%). Conclusões: nos primeiros meses da pandemia houve uma redução sustentada e significativa das consultas pediátricas no SE. Não houve aumento na frequência absoluta de nenhum dos diagnósticos. Foi registrado um decréscimo histórico de IRAs baixas e internações por essa causa em todo o país. A manutenção de uma vigilância das consultas no SE permitiria identificar e intervir atempadamente nos casos de alterações ou situações de risco que até agora não tinham sido detectadas.

White Fibrous Papulosis of the Neck: A Case Report.

White fibrous papulosis of the neck is a rare entity, with a benign course and unknown pathogenesis. It is clinically characterized by the appearance of firm, persistent, usually asymptomatic, non-follicular papules located on the neck. We present the case of a 72-year-old patient who presented pruritic lesions on the neck whose biopsy was compatible with this entity.

Tumor-Induced Osteomalacia With Normal Fibroblast Growth Factor-23 (FGF23) and Idiopathic Hypercalciuria.

Tumor-induced osteomalacia (TIO) is a rare acquired paraneoplastic syndrome characterized by low serum phosphate, phosphaturia, inappropriately low/normal levels of serum calcitriol, and normal or elevated levels of fibroblast growth factor-23 (FGF23). Finding this mesenchymal tumor is challenging since it is usually benign, small, slow-growing, and is localized in the appendicular skeleton. We report a 58-year-old male patient who arrived at the endocrinology outpatient clinic due to slowly progressive low back pain and generalized weakness since the age of 48. On physical examination, only a reduced range of motion was noted. Laboratory tests revealed hypophosphatemia with normal parathyroid hormone (PTH) levels, normal serum calcium, high 24-hour urine calcium, normal 1,25-dihydroxyvitaminD levels, low renal threshold phosphate concentration (TmPO4/GFR), and high FGF23. The 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) reported a hypermetabolic extramedullary lesion in the C1-C2 vertebral bodies measuring 1.5 x 1.1 cm. Two months after the 18F-FDG PET/CT, complete excision of the cervical tumor was performed. The pathology ward reported a histiocytic mesenchymal neoplasm with accumulations of multinucleated giant cells compatible with phosphaturic mesenchymal tumor. After surgery, the patient's hypophosphatemia was completely resolved. With this, the diagnosis of TIO was confirmed. The patient remains asymptomatic, with normal phosphate levels at one year of follow-up. Hypophosphatemia due to renal losses in an adult patient is a challenging diagnosis and one must consider TIO, autosomal dominant hypophosphatemic rickets, fibrous dysplasia, and even Fanconi syndrome. FGF23 can be extremely useful during the diagnostic approach since acquired dependent hypophosphatemia (FGF23 ≥ 30 RU/mL) highly suggests TIO. In this case report, we want to highlight the paramount importance of adequate tumor screening in adult patients with acquired FGF23-dependent hypophosphatemia. TIO is a reversible cause of hypophosphatemia with potentially disabling consequences if left untreated. These manifestations are non-specific (bone pain and muscle weakness), while others are progressive and severely disabling (bone deformities and multiple fractures). In this case report, we want to highlight the paramount importance of adequate tumor screening in adult patients with acquired hypophosphatemia, and the crucial lead that phosphate and vitamin D regulating hormones (FGF23) have for suspecting TIO.

Tinnitus, Sudden Sensorineural Hearing Loss, and Vestibular Neuritis As Complications of the Astra Zeneca COVID-19 Vaccine.

BACKGROUND: Sudden sensorineural hearing loss is most commonly defined as a sensorineural hearing loss of 30dB or greater over at least three contiguous audiometric frequencies occurring within a 72-hr period. The Astra Zeneca COVID-19 vaccine is suspicious of causing thrombotic complications following its administration, and could theoretically induce hearing loss by damaging the hearing organs through this mechanism, as well as vestibular damage through similar mechanisms. MATERIAL AND METHODS: We reviewed the files of patients with otological symptoms after exposure to the Astra Zeneca COVID-19 vaccine during the year 2021. CASE SERIES: We studied a total of six cases with otologic symptoms temporally related to the Astra Zeneca COVID-19 vaccine. We report four cases of patients presenting with hearing loss and tinnitus a few days after the second dose of the Astra Zeneca vaccine, and one case with the same symptoms after the first dose. Four cases were successfully treated with steroids; however, one case presented to the office two months after the onset of symptoms and did not improve with treatment. We also report the first case of vestibular neuritis temporally related to the administration of the first dose of the vaccine, which also had a good outcome after medical treatment. CONCLUSIONS: Prompt treatment in the present cases was a factor associated with a good prognosis.

Depresión mayor en población general de Envigado (Colombia): prevalencia y factores asociados / Major depression in the general population of Envigado (Colombia): prevalence and associated factors

Resumen Introducción: La depresión afecta a más de 300 millones de personas en el mundo, es la principal causa de discapacidad y contribuye de forma importante a la carga mundial de morbilidad. Objetivo: Determinar la prevalencia y algunos factores personales, sociales y familiares asociados al trastorno de depresión mayor en población de 15 a 65 años del municipio de Envigado (Colombia) en el año 2017. Método: Estudio transversal con intención analítica, a partir de la información de 905 participantes del "Estudio Poblacional de Salud Mental, Envigado 2017", recopilada a través de entrevistas realizadas con la World Health Organization Composite International Diagnostic Interview -CIDI-OMS. El procesamiento se realizó mediante el programa SPSS versión 23. Resultados: Cuatro factores explican la probabilidad de depresión mayor en el último año, en la población de estudio: el abuso de drogas diferentes al alcohol (ORaj=4,43 [1,164-16,833]), la muerte o enfermedad de un familiar cercano (ORaj=4,15 [1,583-10,880]), presentar altos niveles de resiliencia (ORaj=0,22 [0,112-0,425]) y una percepción excelente o buena de su salud mental (ORaj=0,19 [0,098-0,378]). Conclusiones: Los factores que aumentan la probabilidad de depresión mayor en la población de estudio son: abuso de drogas diferentes al alcohol y la muerte o enfermedad de un familiar de primer grado de consanguinidad; y los factores protectores son altos niveles de resiliencia y una percepción excelente o buena de la propia salud mental. Esta evidencia refuerza la necesidad de implementar programas de promoción centrados en el mejoramiento de habilidades para la vida, que propicien estrategias adecuadas frente a los desafíos.

Abstract Introduction: Depression affects more than 300 million people in the world, it is the leading cause of disability and contributes significantly to the global burden of disease. Objective: To determine the prevalence and some social, personal, and family factors associated with major depressive disorder in a population aged from 15 to 65 in Envigado (Colombia) in 2017. Methods: A cross-sectional study with analytical intent was conducted, based on the information from 905 participants for the "Population study of mental health 2017", collected through interviews administered by means of the World Health Organization Composite International Diagnostic Interview -CIDI-OMS. The processing was performed using the SPSS program version 23. (CES University License). Results: Four factors correlate with major depression in the last year in the study population: drug abuse other than alcohol (ORaj = 4,43 [1,164-16,833]), a close relative´s death or illness (ORaj = 4,15 [1,583-10,880]), high resilience (ORaj = 0.22 [0,112-0,425]) and an excellent or good mental health perception (ORaj = 0.19 [0.098-0.378]). Conclusions: the factors that increase the probability of major depression in the study population are drug abuse other than alcohol and the death or illness of a first-degree relative; and the protective factors are high levels of resilience and an excellent or good perception of one's own mental health. This evidence reinforces the need to implement promotion programs focused on improvement of life skills, which provide adequate strategies to face the challenges.

Simulación in situ y "madre" simulada, nuevas estrategias pedagógicas en pediatría / Simulação in situ e simulação "mãe", novas estratégias pedagógicas em pediatria / In situ simulation and simulated "mother", new pedagogical strategies in pediatrics

El proceso de docencia-aprendizaje de las disciplinas clínicas tiene entre sus desafíos la adquisición de habilidades del estudiante con el paciente. Las oportunidades de prácticas clínicas se han reducido. La menor cantidad de consultas pediátricas en el año 2020 durante la pandemia por Coronoavirus exacerbó este hecho. Objetivo: Comunicar la experiencia de simulación in situ y madre simulada realizada por docentes del Departamento de Emergencia Pediátrica del Centro Hospitalario Pereira Rossell, dirigida al entrenamiento de estudiantes de la Unidad Curricular Pediatría (Facultad de Medicina-UdelaR), en la realización de la anamnesis de un paciente con patología respiratoria. Metodología: estudio descriptivo. Madre simulada: docentes/residentes. Simulador: lactante-tecnología intermedia. Participantes del escenario: 2 estudiantes. Lugar: DEP-CHPR. Período: setiembre-diciembre 2020. Resultados: Participaron de la simulación 327 estudiantes, 255 contestaron el censo. Utilidad de la simulación: 53,2% muy útil/excelente, poco o nada útil 24,8%, no contesta 22%. Credibilidad: aceptable 38%, muy creíble/excelente 27,5%, 12,5% poco o nada creíble, 22% no contesta. Participación grupal en el debriefing 64,5%, participación parcial 11,4%, sin debriefing 2,1%, no contesta 22%.Discusión: De los 327 estudiantes que realizaron la simulación al menos 24,% la percibió como poco o nada útil. La falta de información previa, la participación en el escenario de 2 estudiantes por grupo y la poca interacción en el debriefing en algunos grupos pudo haber influído. Conclusiones: La experiencia comunicada generó nuevas oportunidades de docencia aprendizaje. Se identificaron aspectos metodológicos que pueden mejorarse.

The teaching-learning process in clinical disciplines includes amongst its challenges the acquisition of the student's skills with the patient. Opportunities for clinical practice have diminished. A smaller number of pediatric visits in 2020 during the Coronavirus pandemic increased this fact. Objective: to communicate the experience of in situ simulation and simulated mother carried out by the faculty of the Pediatric Emergency Department of the Pereira Rossell Hospital Center, address to students in the Pediatrics Curricular Unit (School of Medicine- UdelaR), in the case of an infant patient with respiratory pathology. Methods: Descriptive study. Simulated mother: faculty members/residents. Simulator: intermediate technology infant. Participants in the scenario: 2 students. Location: DPE.PRHC. Period: September- December 2020.Results: 327 students participated in the simulation, 255 answered the census. Usefulness of the simulation: 53.2% very useful / excellent, little or not at all useful 24.8%, no answer 22%. Credibility: acceptable 38%, very credible / excellent 27.5%, 12.5% ​​little or not at all credible, 22% do not answer. Group participation in the debriefing 64.5%, partial participation 11.4%, without debriefing 2.1%, no answer 22%. Discussion: Of the 327 students who carried out the simulation at least 24,8 % perceived it as little or not useful. The lack of previous information, the participation in the scenario of 2 students per group and the little interaction in the debriefing in some groups could have influenced. Conclusions: The communicated experience generated new teaching-learning opportunities. Methodological aspects that can be improved were identified.

O processo de ensino-aprendizagem de disciplinas clínicas tem entre seus desafios a aquisição de habilidades do aluno com o paciente. As oportunidades de estágio clínico foram reduzidas. O menor número de consultas pediátricas em 2020 durante a pandemia de Coronoavirus exacerbou esse fato. Objetivo: Comunicar a experiência de simulação in situ e simulação materna realizada pela docentes do Serviço de Urgência Pediátrica do Centro Hospitalar Pereira Rossell, com alunos da Unidade Curricular Pediatria (Faculdade de Medicina-UdelaR), na anamnese de paciente com doença respiratória. Metodologia: estudo descritivo. Mãe simulada: professores / residentes. Simulador: lactente de tecnologia intermédia. Participantes do cenário: 2 alunos. Local: DEP-CHPR. Período: setembro a dezembro de 2020. Resultados: 327 alunos participaram da simulação, 255 responderam a pesquisa. Utilidade da simulação: 53,2% muito útil / excelente, pouco ou nada útil 24,8%, sem resposta 22%. Credibilidade: aceitável 38%, muito credível / excelente 27,5%, 12,5% pouco ou nada credível, 22% não respondem. Participação do grupo no debriefing 64,5%, participação parcial 11,4%, sem debriefing 2,1%, sem resposta 22%. Discussão: Dos 327 alunos que realizaram a simulação, pelo menos 24,% a perceberam como pouco ou nada útil. A falta de informação prévia, a participação no cenário de 2 alunos por grupo e a pouca interação no debriefing em alguns grupos podem ter influenciado. Conclusões: A experiência comunicada gerou novas oportunidades de ensino-aprendizagem. Aspectos metodológicos que podem ser melhorados foram identificados.

Experiencia en sedoanalgesia vinculada a procedimientos en un departamento de emergencia pediátrica / Experience in procedural sedation and analgesia in a pediatrics emergency unit / Experiência em sedação e analgesia ligada a procedimentos em um departamento de emergência pediátrica

Resumen: Introducción: la realización de procedimientos dolorosos es cada vez más frecuente en el área de urgencias pediátricas. El control del dolor, mitigar el temor y la ansiedad es una pieza clave en la atención del paciente pediátrico y una de las prioridades del médico emergencista. Objetivo: describir la experiencia en sedoanalgesia con ketamina y fentanilo como único fármaco o asociados a otros para procedimientos dolorosos en el Departamento de Emergencia Pediátrica (DEP) del Centro Hospitalario Pereira Rossell (CHPR). Material y método: estudio descriptivo, retrospectivo. Período: enero de 2011 a julio de 2016. Población: todos los pacientes que recibieron sedoanalgesia con ketamina o fentanilo (solos o asociado a otros fármacos) para realización de procedimientos dolorosos en el DEP-CHPR. Base de datos: historias clínicas. Se midió la eficacia mediante el éxito del procedimiento y la seguridad por la presencia de efectos adversos vinculados a la misma. Resultados: n=352, menores de 15 años; 96 recibieron ketamina y 256 recibieron fentanilo. Media de edad: 7 años, sexo masculino: 245. Dosis media de ketamina 1 mg/kg. Dosis media de fentanilo 1 ɤ/kg. Principales indicaciones de sedoanalgesia: procedimientos ortopédicos (264), toracocentesis (62). Procedimiento con éxito: 352 pacientes. Monitorización cardiovascular y saturometría durante el procedimiento: 100%. Efectos adversos: seis (no requiriendo maniobras de soporte vital avanzado). Ningún paciente cambió su destino final. Conclusiones: la utilización de sedoanalgesia resultó eficaz y segura realizada por el pediatra emergencista capacitado en el manejo farmacológico y de soporte vital avanzado. La monitorización del procedimiento durante y luego de éste es necesaria para pesquisar y resolver precozmente las complicaciones.

Summary: Introduction: painful procedures are gradually increasing frequency in pediatrics emergency units. Controlling pain and mitigating fear and anxiety are of the essence when assisting pediatric patients and one of the priorities of emergency doctors. Objective: to describe using sedoanalgesia with ketamine and fentanyl as the only drug or associated with other drugs during painful procedures, at the Pediatrics Emergency Unit, of the Pereira Rossell Hospital Center. Method: descriptive, retrospective study from January 2011 to July 2016. Population: all patients who received sedoanalgesia with ketamine and fentanyl (as the only drug or associated with other drugs) during painful procedures at the Pediatrics Emergency Unit, of the Pereira Rossell Hospital Center. Database: medical records. Effectiveness was measured by success of the procedure and safety in terms of adverse effects in connection with it. Results: N=352 children younger than 15 years old. 96 received ketamine and 256 received fentanyl. Average age was 7 years old and 245 of them were boys. Average dose of ketamine was 1 mg/kg, average dose of fentanyl was 1 ɤ/kg. Main indications for sedoanalgesia included: orthopaedic procedures (264), thoracentesis (62). Procedures were successful in 352 patients. 100% of cases involved cardiovascular monitoring and blood oxygen saturation meter. Adverse effects: 6 (no advanced life support manoeuvres required). No patient changed final destination. Conclusions: the use of sedoanalgesia was effective and safe, when applied by emergengy pediatricians qualified in the handling of drugs and advanced life support. Monitoring during and after procedure is required to determine and solve complications at an early stage.

Resumo Introdução: a realização de procedimentos dolorosos é cada vez mais frequente na área de emergência pediátrica. Controlar a dor, mitigar o medo e a ansiedade é um elemento-chave no atendimento ao paciente pediátrico e uma das prioridades do médico de emergência. Objetivo: descrever a experiência em sedação e analgesia com ketamina e fentanil como fármaco único ou associado a outros para procedimentos dolorosos, no Serviço de Emergência Pediátrica (DEP) do Centro Hospitalar Pereira Rossell (CHPR) Material e métodos: estudo descritivo retrospectivo. Período: janeiro de 2011 a julho de 2016. População: todos os pacientes que receberam sedação e analgesia com ketamina ou fentanil (isoladamente ou em combinação com outras drogas) para realização de procedimentos dolorosos no DEP-CHPR. Banco de dados: prontuários médicos. A eficácia foi medida pelo sucesso do procedimento e a segurança pela presença de efeitos adversos associados. Resultados: n = 352 crianças menores de 15 anos. 96 receberam ketamina e 256 receberam fentanil. Idade média: 7 anos, sexo masculino: 245. Dose média de ketamina 1 mg / kg. Dose média de fentanil 1 ɤ/kg. Principais indicações para sedação e analgesia: procedimentos ortopédicos (264), toracocentese (62). Procedimento com sucesso: 352 pacientes. Monitorização cardiovascular e oximetria durante o procedimento: 100%. Efeitos adversos: 6 (não requer manobras de suporte avançado de vida). Nenhum paciente mudou seu destino final. Conclusões: o uso da sedação e analgesia foi eficaz e seguro realizado por pediatra de emergência capacitado em manejo farmacológico e suporte avançado de vida. O monitoramento do procedimento durante e após é necessário para investigar e resolver precocemente as complicações.

High Molecular Weight ACTH-Precursor Presence in a Metastatic Pancreatic Neuroendocrine Tumor Causing Severe Ectopic Cushing's Syndrome: A Case Report.

Ectopic ACTH-secretion causing Cushing's syndrome is unusual and its diagnosis is frequently challenging. The presence of high-molecular-weight precursors throughout pro-opiomelanocortin (POMC) translation by these tumors is often not reported. We present the case of a 49-year-old woman with a 3-month history of proximal muscular weakness, skin pigmentation, and weight loss. Upon initial evaluation, she had a full moon face, hirsutism, and a buffalo hump. Laboratory workup showed hyperglycemia, hypokalemia and metabolic alkalosis. ACTH, plasma cortisol, and urinary free cortisol levels were quite elevated. Serum cortisol levels were not suppressed on dexamethasone suppression testing. An octreo-SPECT scan showed enhanced nucleotide uptake in the liver and pancreas. Transendoscopic ultrasound-guided biopsy confirmed the diagnosis of a pancreatic ACTH-secreting neuroendocrine tumor (NET). Surgical excision of both pancreatic and liver lesions was carried out. Western blot analysis of the tumor and metastases revealed the presence of a high-molecular-weight precursor possibly POMC (at 30 kDa) but not ACTH (normally 4.5 kDa). ACTH-precursor secretion is more frequent in ectopic ACTH-secreting tumors compared with other causes of Cushing's syndrome. Hence, the measurement of such ACTH precursors warrants further evaluation, especially in the context of ACTH-dependent hypercortisolism.

Consenso de Recomendaciones Para El Traslado Interhospitalario de pacientes sospechosos/confirmados con COVID-19: Grupo de trabajo de Transporte De La Sociedad Latinoamericana de Emergencias Pediátricas (SLEPE)

RESUMEN El transporte del paciente pediátrico en estado crítico en tiempos de COVID 19 representa un desafío, especialmente en un entorno de recursos limitados. Es posible que los hospitales regionales en muchas partes del mundo no estén completamente equipados para tratar a niños con necesidades médicas complejas y en casos de infección por coronavirus. En muchos casos, los equipos de transporte deben tomar decisiones complejas durante todo el proceso, desde la llamada inicial al hospital receptor y la atención del paciente. Los niños en un entorno de recursos limitados tienen un mayor riesgo de eventos adversos y deterioro clínico. El objetivo de este documento es estandarizar aspectos relacionados con el transporte de pacientes sospechosos / confirmados de COVID-19, a fin de reducir el riesgo de transmisión durante el proceso, proteger al personal de salud, evitar el deterioro fisiológico de los pacientes durante el transporte y el posterior contagio de otros pacientes que puedan ser trasladados en la ambulancia.

ABSTRACT Transporting the critically ill pediatric patient in times of COVID 19 is challenging, especially in a resource-limited setting. Regional hospitals in many parts of the world may not be fully equipped to treat children with complex medical needs and coronavirus infection. In many cases, transportation teams must make complex decisions throughout the care process, from the initial call at the receiving hospital to all aspects of caring for the patient. Children in a resource-limited setting are at increased risk for adverse events and clinical decline. The purpose of this document is to standardize aspects related to the transport of suspected / confirmed COVID-19 patients, in order to reduce transmission risk during the process, protect health-care personnel, avoid clinical deterioration of patients during transport and prevent subsequent virus transmission to other patients who may later be transferred in the same ambulance.

Visualization of moisturizer effects in stratum corneum in vitro using THz spectroscopic imaging.

We use terahertz time-domain spectroscopic (THz-TDS) imaging for the evaluation of moisturizing-substances effects over stratum corneum (SC) samples. Excised SC of porcine skin is used as an in vitro skin model. We evaluate the interaction of SC samples with glycerine and lanolin, two substances commonly used in moisturizers. In order to do this, THz images of SC samples after deposition of the substances are scanned. The response of the SC samples to a commercial moisturizer is also analyzed. Our results show that THz imaging is capable of sensing the distinct interaction mechanisms of the substances with the SC samples. The occlusive nature of lanolin, the hyperosmotic behavior of glycerine, and the moisturizing effect of the commercial moisturizer can be observed using THz-TDS imaging.

FASTING INSULIN AND ALANINE AMINO TRANSFERASE, BUT NOT FGF21, WERE INDEPENDENT PARAMETERS RELATED WITH IRISIN INCREMENT AFTER INTENSIVE AEROBIC EXERCISING.

BACKGROUND: Irisin is a protein cleaved from fibronectin type III domain-containing protein 5 and has been implicated in the beneficial effects of exercise. However, it is unknown which factors contribute to irisin increment after intensive exercising in humans. This study aimed to assess independent factors related with serum irisin after 2 weeks of supervised physical activity in young sedentary healthy women. DESIGN AND METHODS: We developed a comparative, interventional, longitudinal, and prospective study at a third-level specialty health center. Between March 2010 and August 2011, 82 sedentary young adult women, without chronic diseases or regular medical treatments, were recruited. A total of 38 women fulfilled selection criteria, and irisin concentrations were quantified before and after the intervention. Independent factors related with irisin increment were evaluated according to mild to moderate and vigorous intensity of physical activity. A supervised treadmill exercise test following the Bruce's protocol was conducted from Monday to Friday during 2 weeks. In addition, anthropometric measurements were taken, and fibroblast growth factor 21 (FGF21), glucose, insulin, and liver transaminases were measured. RESULTS: Intensity of exercising was directly related to irisin (p = 0.02) and FGF21 (p = 0.01) serum levels. However, an independent and significant relationship between FGF21 and irisin was not confirmed. A novel association was found between alanine aminotransferase (ALT) and irisin, showing a positive and significant correlation (r = 0.37, p = 0.02). The association was particularly strong with higher intensity of aerobic exercising (r = 0.64, p = 0.01). Linear regression model adjusted for glucose and body mass index confirmed an independent association between ALT and irisin and also between insulin and irisin (adjusted R² = 0.12, p = 0.04). Such association increased after grouping in moderate to vigorous physical activity intensity (adjusted R² = 0.46, F = 4.7, p = 0.03). CONCLUSIONS: Serum irisin and FGF21 levels significantly increased after 2 weeks of supervised physical activity. However, only fasting insulin and ALT, but not FGF21, were independent parameters explaining irisin increment, mainly after moderate to vigorous exercising.

Fasting insulin and alanine amino transferase, but not FGF21, were independent parameters related with irisin increment after intensive aerobic exercising

Abstract Background Irisin is a protein cleaved from fibronectin type III domain-containing protein 5 and has been implicated in the beneficial effects of exercise. However, it is unknown which factors contribute to irisin increment after intensive exercising in humans. This study aimed to assess independent factors related with serum irisin after 2 weeks of supervised physical activity in young sedentary healthy women. Design and Methods We developed a comparative, interventional, longitudinal, and prospective study at a third-level specialty health center. Between March 2010 and August 2011, 82 sedentary young adult women, without chronic diseases or regular medical treatments, were recruited. A total of 38 women fulfilled selection criteria, and irisin concentrations were quantified before and after the intervention. Independent factors related with irisin increment were evaluated according to mild to moderate and vigorous intensity of physical activity. A supervised treadmill exercise test following the Bruce’s protocol was conducted from Monday to Friday during 2 weeks. In addition, anthropometric measurements were taken, and fibroblast growth factor 21 (FGF21), glucose, insulin, and liver transaminases were measured. Results Intensity of exercising was directly related to irisin (p = 0.02) and FGF21 (p = 0.01) serum levels. However, an independent and significant relationship between FGF21 and irisin was not confirmed. A novel association was found between alanine aminotransferase (ALT) and irisin, showing a positive and significant correlation (r = 0.37, p = 0.02). The association was particularly strong with higher intensity of aerobic exercising (r = 0.64, p = 0.01). Linear regression model adjusted for glucose and body mass index confirmed an independent association between ALT and irisin and also between insulin and irisin (adjusted R² = 0.12, p = 0.04). Such association increased after grouping in moderate to vigorous physical activity intensity (adjusted R² = 0.46, F = 4.7, p = 0.03). Conclusions Serum irisin and FGF21 levels significantly increased after 2 weeks of supervised physical activity. However, only fasting insulin and ALT, but not FGF21, were independent parameters explaining irisin increment, mainly after moderate to vigorous exercising.