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Introduction: Multisystem inflammatory syndrome in children associated with coronavirus disease 2019 (MIS-C), a novel hyperinflammatory condition secondary to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, is associated with severe outcomes such as coronary artery aneurysm and death. Methods: This multicenter, retrospective, observational cohort study including eight centers in Mexico, aimed to describe the clinical characteristics and outcomes of patients with MIS-C. Patient data were evaluated using latent class analysis (LCA) to categorize patients into three phenotypes: toxic shock syndrome-like (TSSL)-MIS-C, Kawasaki disease-like (KDL)-MIS-C, and nonspecific MIS-C (NS-MIS-C). Risk factors for adverse outcomes were estimated using multilevel mixed-effects logistic regression. Results: The study included 239 patients with MIS-C, including 61 (26%), 70 (29%), and 108 (45%) patients in the TSSL-MIS-C, KDL-MIS-C, and NS-MIS-C groups, respectively. Fifty-four percent of the patients were admitted to the intensive care unit, and 42%, 78%, and 41% received intravenous immunoglobulin, systemic glucocorticoids, and anticoagulants, respectively. Coronary artery dilatation and aneurysms were found in 5.7% and 13.2% of the patients in whom coronary artery diameter was measured, respectively. Any cause in-hospital mortality was 5.4%. Hospitalization after ten days of symptoms was associated with coronary artery abnormalities (odds ratio [OR] 1.6, 95% confidence interval [CI] 1.2-2.0). Age ≥10 years (OR: 5.6, 95% CI: 1.4-2.04), severe underlying condition (OR: 9.3, 95% CI: 2.8-31.0), platelet count <150,000 /mm3 (OR: 4.2, 95% CI: 1.2-14.7), international normalized ratio >1.2 (OR: 3.8, 95% CI: 1.05-13.9), and serum ferritin concentration >1,500 mg/dl at admission (OR: 52, 95% CI: 5.9-463) were risk factors for death. Discussion: Mortality in patients with MIS-C was higher than reported in other series, probably because of a high rate of cases with serious underlying diseases.

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Resumen El Comité de Infecciones en el Niño Inmunocomprometido de la Sociedad Latinoamericana de Infectología Pediátrica, entrega este documento de Consenso, llamado "Manejo de los episodios de neutropenia febril en niños con cáncer. Consenso de la Sociedad Latinoamericana de Infectología Pediátrica 2021". El documento contiene recomendaciones sobre aspectos de prevención, predicción, diagnóstico, tratamiento y pronóstico de los episodios de fiebre y neutropenia, incluyendo recomendaciones específicas sobre: Análisis de ingreso; evaluación, ajustes y duración de terapias antimicrobianas; diagnóstico y manejo de infección fúngica invasora; análisis de los principales focos clínicos de infección; condiciones ambientales necesarias para hospitales que atienden niños con cáncer y quimioprofilaxis. Se ha puesto especial énfasis en entregar las mejores recomendaciones para optimizar el manejo de los episodios de fiebre y neutropenia en niños con cáncer, buscando la equidad y la excelencia a través de todos los centros que atienden estos pacientes en América Latina.

Abstract The Committee for Infections in Immunocompromised Children of Sociedad Latinoamericana de Infectología Pediátrica, presents this Consensus document, titled "Management of episodes of febrile neutropenia in children with cancer. Consensus of the Sociedad Latinoamericana de Infectología Pediátrica 2021". The document includes recommendations on prevention, prediction, diagnosis, treatment and prognosis of episodes of fever and neutropenia, including specific recommendations on: Analysis at admission; evaluation, adjustments and duration of antimicrobial therapies; diagnosis and management of invasive fungal infection; analysis of the main clinical source of infections; environmental conditions necessary for hospitals caring for children with cancer and chemoprophylaxis. Special emphasis has been placed on providing the best recommendations to optimize the management of episodes of fever and neutropenia in children with cancer, with equity and excellence through all the centers that treat these patients in Latin America.

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Background: SARS-COV2 appears less frequently and less severely in the pediatric population than in the older age groups. There is a need to precisely estimate the specific risks for each age group to design health and education policies suitable for each population. Objective: This study aimed to describe the risk of death in SARS-COV2 infected subjects by age group and according to the presence of comorbidities. Methods: We analyzed data of confirmed SARS-COV2 infection cases where symptoms began between February 22th, 2020, and April 18th, 2021, as published by the General Epidemiology Direction (DGE) of the Mexican Ministry of Health. We calculated COVID-19 incidence and mortality by age group using population data from the Statistics and Population National Institute (INEGI), and estimated the association between risk of death and the presence of comorbidities. Results: Mortality in SARS-COV2 infected people varied considerably, between 7 and 155 deaths per million per year in the under-20 age groups compared to 441 to 15,929 in the older age groups. Mortality in pediatric populations is strongly associated with comorbidities (OR: 4.6-47.9) compared to the milder association for older age groups (OR: 3.16-1.23). Conclusion: The risk of death from SARS-COV2 infection in children is low and is strongly associated with comorbidities.

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Resumen: Introducción: La acrodermatitis enteropática es una enfermedad de baja incidencia que ocurre por deficiencia de zinc; puede ser hereditaria o adquirida. Se caracteriza por dermatitis acral, alopecia, diarrea y problemas de crecimiento. La afección dermatológica puede simular una infección micótica cutánea u otras enfermedades de la piel relacionadas con patógenos. Caso clínico: Se informa el caso de una paciente de sexo femenino de 7 meses de edad, que fue enviada al Centro Médico Nacional 20 de Noviembre por sospecha de inmunodeficiencia y micosis cutánea. Inició con un cuadro clínico caracterizado por dermatosis diseminada a cabeza, tronco y región genital, por lo que recibió tratamiento inicial con un antifúngico y antibióticos de amplio espectro, sin presentar mejoría. A su ingreso se descartaron inmunodeficiencia e infección micótica. Se sospechó acrodermatitis enteropática, corroborándose el diagnóstico al encontrar niveles séricos de zinc disminuidos. La paciente presentó mejoría inmediata tras el inicio del tratamiento con zinc por vía oral. Conclusiones: El diagnóstico diferencial de acrodermatitis enteropática es amplio e incluye infecciones cutáneas, por lo que el reconocimiento temprano de las características de las lesiones favorece la sospecha, el diagnóstico y el tratamiento adecuado.

Abstract: Introduction: Acrodermatitis enteropathica is a low-incidence disease due to inherited or acquired zinc deficiency. It is characterized by acral dermatitis, alopecia, diarrhea and growth retardation. The dermatological condition may mimic a cutaneous fungal infection or other pathogen-related skin diseases. Case report: We report the case of a female patient of 7 months of age, who was sent to Centro Médico Nacional 20 de Noviembre for suspicion of immunodeficiency and cutaneous mycosis. Her condition began with dermatosis disseminated to the head, trunk and genital region; initial treatment with antifungal and broad spectrum antibiotics was given, without improvement. Upon admission, immunodeficiency and fungal infection were discarded. Acrodermatitis enteropathica was suspected, and corroborated later by low serum zinc levels. Immediately after the start of oral treatment with zinc, the patient showed improvement. Conclusions: There are multiple differential diagnoses of acrodermatitis enteropathica, which includes cutaneous infections. Therefore, the early recognition of the characteristic lesions favors suspicion, diagnosis and appropriate treatment.

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INTRODUCTION: Acrodermatitis enteropathica is a low-incidence disease due to inherited or acquired zinc deficiency. It is characterized by acral dermatitis, alopecia, diarrhea and growth retardation. The dermatological condition may mimic a cutaneous fungal infection or other pathogen-related skin diseases. CASE REPORT: We report the case of a female patient of 7 months of age, who was sent to Centro Médico Nacional 20 de Noviembre for suspicion of immunodeficiency and cutaneous mycosis. Her condition began with dermatosis disseminated to the head, trunk and genital region; initial treatment with antifungal and broad spectrum antibiotics was given, without improvement. Upon admission, immunodeficiency and fungal infection were discarded. Acrodermatitis enteropathica was suspected, and corroborated later by low serum zinc levels. Immediately after the start of oral treatment with zinc, the patient showed improvement. CONCLUSIONS: There are multiple differential diagnoses of acrodermatitis enteropathica, which includes cutaneous infections. Therefore, the early recognition of the characteristic lesions favors suspicion, diagnosis and appropriate treatment.

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