Experiencia en el manejo de anafilaxia en un Departamento de Emergencias Pediátricas

Introducción: La anafilaxia es una reacción multisistémica potencialmente mortal; su reconocimiento temprano y abordaje oportuno son fundamentales. La variabilidad de presentación y gravedad requieren la utilización de criterios diagnósticos para la mejora de la atención en urgencias. Objetivo: Describir las características clínicas, criterios de diagnóstico y tratamiento de los pacientes con anafilaxia atendidos en un Departamento de Emergencias Pediátricas (DEP). Materiales y métodos: Revisión retrospectiva, descriptiva, de casos ingresados en el DEP de enero 2015 a diciembre 2020. Los criterios diagnósticos fueron aplicados por dos observadores emergentólogos evaluando la concordancia con el índice к de Cohen. Se utilizó estadística descriptiva: proporciones, medianas y rango intercuartílico. Resultados: Se aplicaron los criterios NIAID/FAAN a 65 historias clínicas con diagnóstico de egreso de anafilaxia encontrándose una concordancia de 0,64 (IC 95%: 0,41-0,88). De ellos, 35 (54%) cumplieron los criterios diagnósticos. El 66% (23/35) recibió adrenalina. La mediana de edad fue de 7 años (RIC: 3-11,5). Antecedente de asma en 9/35, atopia en 7/35 y anafilaxia previa en 7/35. Como factor desencadenante se constató consumo de medicamentos en 16/35, alimentos en 8/35. La estadía hospitalaria tuvo una mediana de 18 horas (RIC: 12-24). Conclusiones: Los resultados sugieren una brecha entre identificación precisa de los casos de anafilaxia y el tratamiento oportuno con adrenalina cuando se utilizan criterios estandarizados.

Introduction: Anaphylaxis is a potentially fatal multisystem reaction; early recognition and timely approach are essential. The variability in its presentation and severity requires the use of diagnostic criteria to improve emergency care. Objective: To describe the clinical characteristics, diagnostic criteria and treatment of patients with anaphylaxis treated in a Pediatric Emergency Department (PED). Materials and methods: This was a retrospective and descriptive review of cases admitted to the PED from January 2015 to December 2020. The diagnostic criteria were applied by two emergentologist observers; Cohen's к index was used to evaluate their agreement. Descriptive statistics were used: proportions, medians and interquartile range. Results: The NIAID/FAAN criteria were applied to 65 medical records with a discharge diagnosis of anaphylaxis, finding an agreement of 0.64 (95% CI: 0.41-0.88). Of these, 35 (54%) met the diagnostic criteria. 66% (23/35) received adrenaline. The median age was 7 years (IQR: 3-11.5). 9/35 had a history of asthma, 7/35 had atopy and previous anaphylaxis was noted in 7/35. As a triggering factor, medication consumption was found in 16/35, and food in 8/35. The hospital stay had a median of 18 hours (IQR: 12-24). Conclusions: The results suggest a gap between accurate recognition of anaphylaxis cases and timely treatment with adrenaline when standardized criteria are used.

Oral mite anaphylaxis (pancake syndrome) in Peru: an underestimated problem? / Anafilaxia por ingesta de ácaros (Síndrome da panqueca) no Peru: um problema subestimado?

Sabe-se que a urticária e o angioedema apresentam diferentes etiologias, pois podem ser de natureza alérgica, infecciosa, autoimune ou espontânea. Em episódios únicos ou recorrentes, deve-se considerar um alérgeno desencadeante oculto, como os ácaros de poeira doméstica (APDs). Vários relatos demonstraram que farinhas contaminadas com APDs podem causar urticária e angioedema, incluindo reações alérgicas graves com risco de vida quando ingeridos em grandes quantidades provenientes de farinha de trigo armazenada. Neste estudo, relatamos os achados clínicos de 31 pacientes, incluindo casos de anafilaxia após ingestão de farinha contaminada com ácaros. Também encontramos uma relação entre uma história clínica de hipersensibilidade a anti-inflamatórios não esteroides e síndrome de anafilaxia por ingesta de ácaros em pacientes atópicos, consistente com a teoria de uma "nova tríade do ácido acetilsalicílico", conforme publicado anteriormente, e agora sendo descrito pela primeira vez no Peru.

Urticaria and angioedema are known to have different etiologies, as they can be allergic, infectious, autoimmune, or spontaneous in nature. In single or recurrent episodes, a hidden triggering allergen should be considered, such as house dust mites (HDMs). Several reports have demonstrated that flours contaminated with HDMs can cause urticaria and angioedema, including severe lifethreatening allergic reactions when ingested in large quantities from stored wheat flour. In this study, we report the clinical findings in 31 patients, including cases of anaphylaxis after the ingestion of mite-contaminated flour. We also found a relationship between a clinical history of hypersensitivity to nonsteroidal anti-inflammatory drugs and oral mite anaphylaxis syndrome in atopic patients, consistent with the theory of a "new aspirin triad," as previously published, and now being described for the first time in Peru.

Baker's rhinitis and asthma with concomitant wheat anaphylaxis: a rare overlap of clinical entities / Rinite e asma do padeiro com anafilaxia após ingestão de trigo: um caso raro de sobreposição de entidades clínicas

Wheat is one of the fundamental sources of food worldwide. Baker's asthma and occupational rhinitis are both frequent and can be attributable to work exposure in bakers. However, the association between baker's asthma and wheat allergy is very rare. The authors report the case of a bakery worker who developed baker's asthma and occupational rhinitis after years of working in a bakery and later developed anaphylactic reactions after wheat ingestion.

O trigo é uma das fontes alimentares mais importantes em todo o mundo. A asma do padeiro e a rinite ocupacional são frequentes e podem ser atribuídas à exposição a farinhas em padeiros. No entanto, a associação entre asma do padeiro e alergia alimentar ao trigo é muito rara. Os autores descrevem um caso em que um trabalhador de panificação desenvolveu asma do padeiro e rinite ocupacional após anos trabalhando em uma padaria, e posteriormente desenvolveu reações anafiláticas após a ingestão de trigo.

Segurança da vacinação contra a COVID-19 em doentes referenciados dos cuidados de saúde primários por alergia ao veneno de himenópteros / COVID-19 vaccination safety in patients with hymenoptera venom allergy referred by primary health care

Introdução: As reações de hipersensibilidade após vacinação contra a COVID-19 têm vindo a ser descritas, embora a anafilaxia seja rara. A hipersensibilidade ao veneno de himenópteros constitui a terceira causa mais frequente de anafilaxia em Portugal, embora não pareça aumentar o risco de anafilaxia à vacinação contra a COVID-19. Objetivos: Avaliar a segurança da vacinação contra a COVID-19 em doentes com história de alergia ao veneno de himenópteros referenciados dos Cuidados de Saúde Primários (CSP). Métodos: Estudo observacional retrospectivo com inclusão dos doentes com alergia ao veneno de himenópteros referenciados pelos CSP ao serviço de Imunoalergologia, para estratificação do risco de reações de hipersensibilidade à vacina contra o SARS-CoV-2, entre janeiro e dezembro de 2021. Resultados: No total, incluíram-se 18 doentes, 72% do sexo feminino, média de idades de 61±18 [21-89] anos. Na caracterização do tipo da reação ao veneno de himenópteros, as reações locais exuberantes corresponderam a 33% de todas as reações referidas. Quanto a sintomas sistêmicos de anafilaxia, foram referidos sintomas mucocutâneos (33%), respiratórios (28%), cardiovasculares (33%) e gastrointestinais (11%). A abelha foi o inseto mais frequentemente implicado (61%). Relativamente aos valores de triptase basal, 3 doentes apresentaram níveis acima do cut-off estabelecido de 11,4 ng/mL, tendo indicação formal para iniciar esquema de vacinação em meio hospitalar. Durante o processo vacinal registrou-se um total de 46 administrações em 18 doentes, todas sem intercorrências. Apenas 5 doentes foram vacinados em meio hospitalar, tendo sido os restantes encaminhados para os CSP. Os doentes com mastocitose confirmada ou suspeita foram submetidos à pré-medicação com anti-histamínico anti-H1 e anti- H2, bem como montelucaste, na véspera e no dia da vacinação. Conclusões: A vacinação contra a COVID-19 é segura em doentes com reação de hipersensibilidade ao veneno de himenópteros. O protocolo utilizado mostrou ser eficaz na segregação de doentes entre CSP e cuidados secundários/terciários.

Introduction: Despite numerous reports of hypersensitivity reactions to COVID-19 vaccination, anaphylaxis is rare. Although hypersensitivity reactions to hymenoptera venom are the third most common cause of anaphylaxis in Portugal, they don't appear to enhance the risk of anaphylactic reaction to COVID-19 vaccination. Objectives: To assess the safety of COVID-19 vaccination in patients with a history of hymenoptera venom allergy. Methods: This retrospective observational study included patients with hymenoptera venom allergy referred by primary health care to the Immunoallergology Outpatient Clinic of a tertiary hospital between January and December 2021 to stratify the risk of hypersensitivity reactions to the SARSCoV- 2 vaccine. Results: A total of 18 patients were included: 72% women; mean age 61 (SD, 18 [range 21-89]) years. One-third of all reported reactions to hymenoptera venom were large and local. Topical systemic symptoms of anaphylaxis were mucocutaneous (33%), respiratory (28%), cardiovascular (33%) and gastrointestinal (11%). The honeybee was the most frequently involved hymenoptera species (61%). The basal tryptase levels of 3 patients were above the established cut-off (11.4 ng/mL) and they were formally indicated for vaccination in a hospital setting. Concerning the vaccination process, 46 doses were administered to the 18 patients and no reactions were recorded. Only 5 patients were vaccinated in a hospital environment; the rest were referred to primary health care centers. Patients with confirmed or suspected mastocytosis were premedicated with anti-H1 and anti-H2 antihistamines, as well as montelukast, the day before and on the day of vaccination. Conclusions: COVID-19 vaccination is safe for patients with hypersensitivity to hymenoptera venom. The risk assessment protocol effectively designated patients to primary or secondary/tertiary health care.

Anaphylaxis and systemic mastocytosis caused by Solenopsis invicta stings / Anafilaxia e mastocitose sistêmica ocasionada pela Solenopsis invicta

Indolent systemic mastocytosis is a rare disease characterized by an increased number of mast cells in the bone marrow and other tissues, such as the liver, spleen, lymph nodes, and skin. Patients with indolent systemic mastocytosis and high serum tryptase levels are at risk for Hymenoptera venom-induced anaphylaxis. Hymenoptera venom immunotherapy in patients with specific IgE is safe and effective. While some patients can receive ultra-rush venom immunotherapy with minimal side effects, omalizumab effectively protects against anaphylaxis during the build-up phase.

A mastocitose sistêmica indolente é uma doença rara caracterizada por um número aumentado de mastócitos na medula óssea e em outros tecidos, como fígado, baço, linfonodos e pele. Pacientes com mastocitose sistêmica indolente e altos níveis séricos de triptase correm risco de anafilaxia induzida pelo veneno dos Hymenoptera. A imunoterapia com veneno de himenópteros em pacientes com IgE específica é segura e eficaz. Embora alguns pacientes possam receber imunoterapia com veneno ultrarrápido com efeitos colaterais mínimos, o omalizumabe protegeu efetivamente contra a anafilaxia durante a fase de acúmulo.

Anaphylaxis associated with intracavernous penile injection of prostaglandin E1 in combination with papaverine and phentolamine / Anafilaxia associada à injeção intracavernosa peniana de prostaglandina E1 em combinação com papaverina e fentolamina

Total radical prostatectomy for advanced prostate cancer may lead to sexual impotence, since it is associated with severe erectile dysfunction. A widely recommended treatment for this disabling condition is intracavernous penile injection of a mixture of prostaglandin E1, papaverine, and phentolamine. To our knowledge, we present the first case of anaphylaxis associated with intracavernous penile injection of prostaglandin E1 in combination with papaverine and phentolamine.

A prostatectomia radical total para câncer de próstata avançado pode levar à impotência sexual, associada a uma disfunção erétil grave. Um tratamento amplamente recomendado para esta condição incapacitante é a injeção intracavernosa no pênis de uma mistura de prostaglandina E1, papaverina e fentolamina. Até onde sabemos, estamos apresentando o primeiro caso de anafilaxia associada à injeção intracavernosa peniana de prostaglandina E1 em combinação com papaverina e fentolamina.

Anafilaxia à lapa: um caso clínico raro / Limpet anaphylaxis: a rare case

A lapa (Patella vulgata) é um molusco frequentemente encontrado em regiões costeiras com clima quente. A alergia alimentar à lapa é muito rara, com poucos casos descritos na literatura. Os autores descrevem um caso de anafilaxia à lapa, com evidência de reação de hipersensibilidade do tipo I, através de IgE específica positiva à lapa, tanto com métodos in vivo, como in vitro.

Limpet (Patella vulgata) is a mollusk mainly found in warm coastal regions. Limpet allergy is considered rare, and few cases can be found in the literature. We describe a clinical case of limpet anaphylaxis, including in vitro and in vivo evidence of IgE mechanism involvement.

Intraoperative Cardiac Arrest due to Allergic Acute Coronary Syndrome (Kounis syndrome) Triggered by Cephalosporin

An acute coronary syndrome due to mast?cell activation in the presence of an allergen is known as Kounis Syndrome (KS). This relatively new entity of KS is being increasingly recognized among allergists, cardiologists, and emergency physicians; however, it is not well?known among anesthesiologists. We report here, a case of type 2 KS due to antibiotic administration causing sudden perioperative cardiac arrest.

Enfrentamiento de la anafilaxia en el servicio de urgencia / Approach of Anaphylaxis in the emergency room

La anafilaxia es una reacción en su mayoría de hipersensibilidad tipo I, que estimula la activación generalizada de mastocitos, y provoca un cuadro clínico multisistémico que puede ser fatal. Se estima que tiene una incidencia de 0,03-0,1% y una prevalencia de vida de 0,5-2% en la población general. Generalmente, la reacción inmunológica ocurre posterior a la ingesta de alimentos, uso de medicamentos o picaduras de insectos, pero también se han descrito mecanismos no inmunológicos (no IgE) que actúan directamente sobre los mastocitos, llamadas en la literatura "reacciones anafilactoideas". La anafilaxia fue descrita por Paul Portier y Charles Robert Richet en 1902 en perros, los cuales desarrollaban esta reacción posterior a la inyección repetida de veneno de anémonas (medusas). Sin embargo, esta entidad no tuvo criterios diagnósticos ni pilares de manejo estructurado hasta el año 2006. En ese año en se publicó el segundo simposio de manejo de la anafilaxia, en donde se definieron criterios diagnósticos clínicos claros y el rol fundamental de la adrenalina en su manejo; la única droga que cambia el pronóstico del paciente.

Anaphylaxis is mainly a type I hypersensitivity reaction. It triggers a widespread activation of mast cells, causing a multisystemic clinical scenario that can be fatal. It is estimated to have an incidence of 0.03-0.1% and a lifetime prevalence of 0.5-2%. Most immunological reactions occur after food ingestion, medication, or insect stings, but non-immunological (non-IgE) mechanisms that act directly on mast cells, called Anaphylactoid Reactions, have been also described. Anaphylaxis was described by Paul Portier and Charles Robert Richet in 1902 in dogs, that developed this disease after repeated injections of anemones (jellyfish) venom. However, this entity didn't have established diagnostic criteria or an standarized management until 2006. In this year, the second anaphylaxis management sym-posium took place and clear clinical diagnostic criteria were defined. The fundamental role of adrenaline in its management was also established. The former is the only drug that has demonstrated to improve prognosis of the patient

Off-Pump Resection of Giant Intramural Left Ventricular Hydatid Cyst by Pleuropericardial Approach: a Case Report

ABSTRACT Primary cardiac hydatid cyst is a rare and fatal pathology, especially when involving the left ventricular free wall. A 44-year-old male was diagnosed with large intramural left ventricular hydatid cyst with wall thickness of 6 mm at the thinnest point. Cyst was accessed through pleuropericardial approach (left pleura opened, followed by entry into cyst directly through adjacent pericardium without removing the pericardial adhesions) which resulted in easy entry into the cyst, mitigating the risk of mechanical injury. This case report highlights that with detailed evaluation, cardiac hydatidosis can be addressed with off-pump technique, reducing the anaphylaxis risks and cardiopulmonary bypass-related effects.

Atypical Hypersensitivity Reaction to Botulinum Toxin Injection / Reação de hipersensibilidade atípica à injeção de toxina botulínica

Botulinum toxin type A (BTA) injection, marketed as BOTOX, is commonly used as a treatment for a variety of clinical indications and is widely viewed as safe, effective and largely devoid of serious side effects. Anaphylactic reactions to BTA are typically unheard of in the scientific literature. BOTOX is approved by the Food and Drug Administration for the treatment of cervical dystonia and prophylaxis for chronic migraines. This case report documents a unique instance of allergic reaction to BTA in a 29-year-old woman with cervicogenic headache and cervical dystonia who reported immediate flushing, light-headedness and nausea after receiving BTA injections.

A injeção de toxina botulínica tipo A (BTA), comercializada como BOTOX, é comumente usada como tratamento para uma variedade de indicações clínicas e é amplamente considerada segura, eficaz e amplamente desprovida de efeitos colaterais graves. As reações anafiláticas ao BTA são normalmente inéditas na literatura científica. BOTOX é aprovado pela Food and Drug Administration para o tratamento de distonia cervical e profilaxia de enxaquecas crônicas. Este relato de caso documenta um caso único de reação alérgica ao BTA em uma mulher de 29 anos com dor de cabeça cervicogênica e distonia cervical que relatou rubor imediato, tontura e náusea após receber injeções de BTA.

The distribution of total IgE in patients with allergic and their correlation with allergens and peripheral blood eosinophils / 中国医师进修杂志

Objective:To investigate the distribution of the total IgE, and their relationship with allergens and peripheral blood eosinophils in patients with allergic.Methods:The cross-sectional study was used, and 1 417 patients with allergic in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine were selected. The serum total IgE was detected by enzyme-linked immunosorbent assay (ELISA), and the total IgE>60 kU/L was increased. The blood routine was detected by automated hematology analyzer. Using inhalant allergens and food allergens specific IgE antibody detection kits, the serum or plasma allergen-specific IgE antibodies were detected by Oumeng imprinting in vitro semi quantitative method.Results:Among 1 417 patients with allergic, elevated total IgE was in 617 cases (43.54%), normal total IgE in 800 cases (56.46%); 749 cases (52.86%) were allergic, the most common inhalation allergen was dust mite (38.72%, 218/563), and the most common food allergen was peanut (24.01%, 109/454). The rate of normal total IgE, eosinophils and non allergic was 19.20% (272/1 417). The male proportion, ratio of eosinophils, eosinophils count, total index of inhaled allergens, total index of non inhaled allergens, number of positive allergens, total positive index and average positive index in patients with elevated total IgE were significantly higher than those in patient with normal total IgE, the age was significantly lower than that in patients with normal total IgE, and there were statistical differences ( P<0.01). The total IgE<60 kU/L (normal total IgE) was in 800 cases, total IgE from 60 to 499 kU/L (mild elevation of total IgE) in 487 cases, total IgE from 500 to 999 kU/L (moderate elevation of total IgE) in 78 cases, total IgE≥1 000 kU/L (severe elevation of total IgE) in 52 cases. The male proportion and age in patients with sever elevation of total IgE and moderate elevation of total IgE were significantly higher than those in patients with mild elevation of total IgE and normal total IgE, and there were statistical differences ( P<0.05). The compound allergy rate in patients with severe elevation of total IgE was significantly higher than that in patients with moderate elevation of total IgE, mild elevation of total IgE and normal total IgE: 73.08% (38/52) vs. 60.26% (47/78), 38.40% (187/487), 17.00% (136/800), and there was statistical difference ( P<0.05). The ratio of eosinophils, eosinophils count and number of positive allergens increased with increasing total IgE level, and there was statistical difference ( P<0.05). The number of dermatophagoides/dermatophagoides culinae allergic in patients with moderate elevation of total IgE was significantly more than that in patients with sever elevation of total IgE, mild elevation of total IgE and normal total IgE, and there was statistical difference ( P<0.05). Conclusions:Allergic disease may show a normal level of total IgE. Males are more likely to be troubled with high level of IgE. Patients with total IgE ≥1 000 kU/L should be alert to the possibility of poly-sensitization. Total IgE was no longer correlated with individual allergy severity in patients with total IgE≥500 kU/L.

miR-142-3p alleviates house dust mite induced airway inflammation among children / 中国学校卫生

Objective@#To investigate the role of miR-142-3p in alleviation of house dust mite induced allergic airway inflammation among children, so as to provide insights into unraveling the pathogenesis of allergic airway inflammation.@*Methods@#Serum samples were collected from 15 patients with house dust mite induced allergic asthma and 15 healthy children in Jiangnan University Medical Center from September to November 2022, and serum miR-142-3p expression was quantified using a fluorescent quantitative real time PCR (qPCR) assay. The levels of interleukin 6 (IL 6) and tumor necrosis factor α (TNF α) were measured in the cell culture supernatant using enzyme linked immunosorbent assay (ELISA), and the expression of high mobility group box 1 (HMGB1) was detected at transcriptional and translational lvels using qPCR and Western blotting assays. The negative regulation of the HMGB1 gene by miR 142 3p was identified using a dual luciferase gene reporter assay, and the expression of downstream regulatory proteins was determined in human normal lung epithelial cells (BEAS 2B) cells transfected with miR 142 3p using Western blotting. In addition, female C57BL/6 mice at ages of 6-8 weeks were randomly assigned to the phosphate buffer saline (PBS) group, house dust mite sensitized airway inflammation group and house dust mite sensitized airway inflammation + miR 142 3p intervention group. Mouse airway inflammation was evaluated using hematoxylin eosin staining, and the expression of inflammatory cells and inflammatory cytokines were detected in mouse bronchoalveolar lavage fluid (BALF) using Giemsa staining and ELISA.@*Results@#Lower serum miR-142-3p expression was quantified among children with house dust mite induced allergic asthma than among healthy controls (1.33±0.21 vs. 4.74±0.62, t=5.22, P <0.05). Stimulation with dermatophagoides farinae extract (DFE) resulted in a reduction in miR-142-3p expression in BEAS-2B cells (0.82±0.25), while transfection with miR-142-3p mimics resulted in a rise in miR-142-3p expression in BEAS-2B cells (0.55±0.14)( t=3.31, 3.94, P <0.05). Pre treatment with miR-142-3p reduced the expression of IL 6(2.25±0.46)and TNF α(6.58±1.95) ( t=4.86, 3.38, P <0.05) in BEAS 2B cells stimulated with DFE, and treatment with miR-142-3p mimics resulted in a reduction in TLR4 and NF-κB expression in BEAS-2B cells via negative regulation of the HMGB1 expression. In addition, treatment with miR-142-3p was found to alleviate inflammatory cell infiltration in lung tissues of house dust mite sensitized mice, and results in a reduction in interleukin 4 (IL-4)[(107.60±10.43)pg/mL], interleukin 5 (IL 5)[(95.78±13.14)pg/mL] and HMGB1[(2.52±0.87)pg/mL] expression in BALF ( t=10.32, 7.29, 2.90, P <0.05).@*Conclusion@#miR-142-3p alleviates house dust mite induced allergic airway inflammation among children via negative regulation of the HMGB1/TLR4/NF-κB pathway.

Incidence of adverse transfusion reactions in Chinese children: a meta-analysis / 中国输血杂志

【Objective】 To systematically evaluate the incidence of adverse transfusion reactions in Chinese children, so as to provide scientific basis for prevention and early intervention. 【Methods】 Literature databases such as PubMed, EMbase, The Cochrane Library, CNKI, Wanfang and VIP were searched in terms of the incidence of adverse transfusion reactions in Chinese children from January 2000 to December 2022. Two researchers extracted literature data independently according to the inclusion and exclusion criteria and conducted quality evaluation of included studies according to AHRQ quality evaluation scale. Statistical analysis was performed using Stata 14.0 software. 【Results】 A total of 870 literatures were retrieved, and 13 were included in the study, with a total of 181 274 cases with blood transfusion. Meta-analysis showed that the overall incidence of adverse transfusion reactions in Chinese children was 0.79%[95%CI (0.54%, 1.04%)]. The incidence of adverse reactions of red blood cells, platelets and plasma were 0.34%[95%CI (0.15%, 0.54%)], 2.94%[95%CI (1.60%, 4.28%)] and 0.31%[95%CI (0.19%, 0.43%)], respectively. The incidence of fever reaction and anaphylaxis reaction were 0.22%[95%CI (0.13%, 0.31%)] and 0.46%[95%CI (0.30%, 0.61%)] respectively. 【Conclusion】 The overall incidence of adverse transfusion reactions in Chinese children is low, but the incidence of adverse reactions of platelet transfusion is high, which needs further prevention and control.

A consensus on the management of allergy in kindergartens and primary schools / 中国学校卫生

Abstract@#Allergic diseases can occur in all systems of the body, covering the whole life cycle, from children to adults and to old age, can be lifelong onset and even fatal in severe cases. Children account for the largest proportion of the victims of allergic disease, Children s allergies start from scratch, ranging from mild to severe, from less to more, from single to multiple systems and systemic performance, so the prevention and treatment of allergic diseases in children is of great importance, which can not only prevent high risk allergic conditions from developing into allergic diseases, but also further block the process of allergy. At present, there is no consensus on the management system of allergic children in kindergartens and primary schools. The "Consensus on Allergy Management and Prevention in Kindergartens and Primary Schools", which includes the organizational structure, system construction and management of allergic children, provides evidence informed recommendations for the long term comprehensive management of allergic children in kindergartens and primary schools, and provides a basis for the establishment of the prevention system for allergic children.

Dupilumab for Treatment of Food-Dependent, Exercise-Induced Anaphylaxis: Report of One Case / 中国医学科学杂志(英文版)

Food-dependent, exercise-induced anaphylaxis (FDEIA) is a potentially life-threatening disorder that often occurs with exercise, and patients typically have eaten a specific food within hours before disease onset. This disease is exceedingly rare, with a prevalence of 0.02%. No well-recognized prevention or treatment strategy has been available for FDEIA except avoiding triggers strictly. Here we report an 11-year-old boy with a history of recurrent anaphylaxis of unknown etiology more than 10 times within two years. As the anaphylactic symptoms had not been controlled after traditional treatments, the patient was given subcutaneous injection of dupilumab seven times within 33 weeks. During dupilumab treatments, the patient was exposed to culprit mushrooms plus exercises at least twice a month but without notable anaphylaxis. Thus, Dupilumab may improve the allergic reactions in FDEIA patients.

Biomarkers associated with persistence and severity of IgE-mediated food allergies: a systematic review

Abstract Objective The prevalence of food allergies (FA) has increased worldwide over the last few decades. Milk, eggs, and peanuts are among the most common allergens and can cause anaphylaxis. Therefore, we aimed to identify biomarkers that could predict the persistence and/or severity of IgE-mediated allergies to milk, eggs, and peanuts via a systematic review. Methods This systematic review proceeded according to a protocol registered in the International Prospective Register of Systematic Reviews. Two independent authors extracted studies of interest from PubMed, SciELO, EMBASE, Scopus, and Ebsco databases and assessed their quality using the Newcastle-Ottawa Scale. Results We selected 14 articles describing 1,398 patients. Among eight identified biomarkers, total IgE, specific IgE (sIgE), and IgG4 were the most often cited biomarkers of persistent allergies to milk, eggs, and peanuts. Skin prick tests, endpoint tests, and sIgE cutoff levels may predict positive responses to challenges with these foods. The basophil activation test is a biomarker for the severity and/or threshold of allergic reactions to milk and peanuts. Conclusion Only a few publications identified possible prognostic indicators of the persistence or severity of FA and outcomes of oral food challenges, indicating that more accessible biomarkers are needed to determine the likelihood of having a severe food allergic reaction.

Eventos adversos imediatos à vacina febre amarela em crianças alérgicas ao ovo / Immediate adverse events to the yellow fever vaccine in egg-allergic children

Introdução: A vacina contra a febre amarela é cultivada em ovos embrionados de galinha e por isso pode estar contraindicada em indivíduos alérgicos ao ovo. Quando indicada, deve ser aplicada com cautela, após atendimento especializado para avaliação de testes e necessidade de dessensibilização. Sua segurança nos alérgicos ao ovo ainda é pouco estudada. Objetivo: Descrever uma população pediátrica encaminhada por alergia ao ovo, com ou sem diagnóstico comprovado, e os casos de eventos adversos do tipo imediata à vacina contra a febre amarela em um centro de referência para imunobiológicos especiais (CRIE). Material e métodos: Estudo transversal realizado com coleta de dados retrospectivos de crianças entre 9 meses e 12 anos de idade, vacinadas contra a febre amarela com história de alergia ao ovo, no período de 2018 a 2019. Resultados: Dentre as 829 crianças, com diagnóstico presumido de alergia ao ovo, foi identificada uma maior prevalência de sintomáticos após exposição ao ovo, com IgE específica detectável para ovo, clara de ovo e/ou ovoalbumina. Testes para vacina febre amarela foram realizados em 25 crianças com suspeita de alergia grave ou anafilaxia ao ovo, sendo 15 (60%) positivos com a vacina aplicada após dessensibilização. Foram evidenciados apenas 11 (1,3%) casos de evento adverso imediato à vacina, todos classificados como evento adverso não grave e com acometimento especial da pele (reação local e exantema ou urticária). A maioria dos eventos ocorreu em menores de 2 anos, nos sintomáticos após ingesta de ovo e naqueles com altos valores de IgE específica para clara de ovo. Conclusão: Este estudo evidencia que a vacina contra a febre amarela pode ser aplicada em crianças alérgicas ao ovo, de forma segura, inclusive naquelas com história de anafilaxia, desde que em ambiente adequado e com profissionais especializados.

Introduction: The yellow fever vaccine is grown in embryonated chicken eggs and may be contraindicated for egg-allergic individuals. When indicated, it should be applied with caution, after testing and desensitization. Its safety in egg-allergic patients is still poorly studied. Objective: To describe a pediatric population referred for egg allergy, with or without a confirmed diagnosis, and cases of immediate-type adverse events to the yellow fever vaccine at a reference center for special immunobiologicals. Material and methods: This cross-sectional study collected retrospective data from children between 9 months and 12 years of age who were vaccinated for yellow fever between 2018 and 2019 and had a history of egg allergy. Results: In the 829 children diagnosed with presumed egg allergy, a higher prevalence of symptoms was identified after egg exposure, with detectable specific IgE for egg, egg white, and/ or egg albumin. Yellow fever vaccine tests were performed in 25 children suspected of severe allergy or anaphylaxis to eggs, and 15 (60%) tested positive to the vaccine after desensitization. Only 11 (1.3%) cases of immediate adverse events to the vaccine occurred, all classified as non-serious events that especially involved the skin (local reaction and rash or urticaria). Most events occurred in children under 2 years of age, those symptomatic after egg ingestion, and those with high levels of specific IgE to egg white. Conclusion: This study demonstrated that the yellow fever vaccine can be safely administered to egg-allergic children, including those with a history of anaphylaxis, in an appropriate environment and with specialized professionals.

Anaphylaxis to sunflower seed / Anafilaxia à semente de girassol

Sunflower seed (Helianthus annuus) is an uncommon allergenic source frequently consumed in snacks, as component of some types of bread, as condiment in some dishes, and also used in animal feeding. Occasional cases of anaphylaxis to this seed have been reported in the current literature, mainly in workers occupationally exposed to sunflower allergens and bird breeders. The allergenic nature of the storage protein albumin 2S and the non-specific lipid transfer protein (nsLTP) of this seed has been described. The authors report the case and diagnostic approach of a seed anaphylaxis.

A semente de girassol (Helianthus annuus) é uma fonte alergênica incomum frequentemente consumida em lanches, como componente de alguns tipos de pães, como condimento em alguns pratos, e também utilizada na alimentação animal. Casos eventuais de anafilaxia a esta semente têm sido relatados na literatura atual, principalmente em trabalhadores com exposição ocupacional a alérgenos de girassol e criadores de aves. A natureza alergênica da proteína de armazenamento albumina 2S e da proteína não específica de transferência de lipídios (nsLTP) dessa semente foi descrita. Os autores relatam o caso e a abordagem diagnóstica de uma anafilaxia por sementes.

Perioperative Kounis syndrome in an older adult

Introduction: Kounis syndrome (KS) is myocardial ischemia secondary to the release of inflam matory mediators (mastocyte degranulation) during an allergic reaction. Adult anaphylaxis is often triggered by medications, of which antibiotics are the most frequently reported. Objective: to study the presentation of and clinical approach to a patient with Kounis syndrome and increase the diagnostic suspicion of a disease which does not have a standardized treatment and is not supported by clinical practice guidelines. Case presentation: we present the case of a 62-year-old adult patient with chest pain and anginal equivalents following perioperative anaphylactic shock during a scheduled open cholecystectomy for gallstones, with subsequent acute myocardial infarction without ST elevation, and coronary artery lesions or atheromatous disease ruled out by arteriography. Conclusions: Kounis syndrome is an underdiagnosed entity with a variable clinical presenta tion and no concrete or standardized treatment. This therefore encourages the development of a greater case history and the structuring of widely disseminated guidelines for its treatment. (Acta Med Colomb 2022; 47. DOI:https://doi.org/10.36104/amc.2022.2289).

Introducción: el síndrome de Kounis (SDK) corresponde a una isquemia miocárdica secundaria a la liberación de mediadores inflamatorios (degranulación de mastocitos) durante una reacción alérgica. La anafilaxia en adultos comúnmente es desencadenada por medicamentos, de los cuales los antibióticos son los más frecuentemente informados. Objetivo: estudiar la forma de presentación y abordaje clínico de un paciente con síndrome de Kounis y aumentar la sospecha diagnóstica de una patología que no tiene un tratamiento estanda rizado o respaldado por guías de práctica clínica. Presentación de caso: se presenta el caso de una paciente adulta de 62 años con dolor pre cordial y equivalentes anginosos posterior a un choque anafiláctico perioperatorio durante una colecistectomía abierta realizada de forma programada por colelitiasis, con posterior infarto agudo de miocardio sin elevación del ST, con arteriografía que descartó lesiones en arterias coronarias o enfermedad ateromatosa. Conclusiones: el síndrome de Kounis es una entidad subdiagnosticada, con presentación clínica variable y sin un tratamiento concreto o estandarizado, lo que motiva a realizar una mayor casuística y estructurar recomendaciones de amplia difusión respecto a su tratamiento. (Acta Med Colomb 2022; 47. DOI:https://doi.org/10.36104/amc.2022.2289).