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1.
Rev Alerg Mex ; 68(2): 94-100, 2021.
Artigo em Espanhol | MEDLINE | ID: mdl-34525780

RESUMO

OBJECTIVE: To estimate the frequency of chronic urticaria in patients who attended an allergy service in a tertiary care hospital; in addition, the main clinical characteristics are described. METHODS: In a period of 7 months, a total of 96 patients who were over 18 years of age were analyzed; they had been diagnosed with chronic spontaneous urticaria and chronic inducible urticaria. RESULTS: The frequency of chronic urticaria was of 1.31 % (n=98); 53 % were associated with some allergic pathology, and 54 % showed an alteration in the paraclinical tests. Chronic spontaneous urticaria was found in 80 % of the patients; and in 62 % of them, the urticaria was associated with angioedema. Chronic urticaria was controlled in 19 % of the studied population with the use of a single antihistamine. CONCLUSIONS: The frequency of chronic urticaria in our study was lower than the frequency reported nationwide.


Objetivo: Estimar la frecuencia de la urticaria crónica en pacientes que acudieron a un servicio de alergología en un hospital de tercer nivel; complementariamente, se hace una descripción de las principales características clínicas. Métodos: Se analizaron un total de 96 pacientes con UC espontánea y UC inducible, con edad > 18 años, en un lapso de 7 meses. Resultados: La frecuencia de UC fue de 1.31 % (n = 98); 53 % se asociaron con alguna enfermedad alérgica y 54 % mostró algún tipo de alteración en los estudios paraclínicos. En 80 % de los pacientes, la urticaria fue crónica espontánea y en 62 % se vio asociada con angioedema. El 19 % de los casos obtuvo control de la UC con el uso de un solo antihistamínico. Conclusiones: La frecuencia de UC en nuestro estudio fue inferior con respecto a la informada a nivel nacional.


Assuntos
Angioedema , Urticária Crônica , Urticária , Adolescente , Adulto , Angioedema/epidemiologia , Doença Crônica , Humanos , Centros de Atenção Terciária , Urticária/epidemiologia
2.
Larenas-Linnemann, Désirée; Rodríguez-Pérez, Noel; Luna-Pech, Jorge A; Rodríguez-González, Mónica; Blandón-Vijil, María Virginia; Del-Río-Navarro, Blanca E; Costa-Domínguez, María Del Carmen; Navarrete-Rodríguez, Elsy Maureen; Macouzet-Sánchez, Carlos; Ortega-Martell, José Antonio; Pozo-Beltrán, César Fireth; Estrada-Cardona, Alan; Arias-Cruz, Alfredo; Rodríguez Galván, Karen Guadalupe; Brito-Díaz, Herson; Canseco-Raymundo, María Del Rosario; Castelán-Chávez, Enrique Emanuel; Escalante-Domínguez, Alberto José; Gálvez-Romero, José Luis; Gómez-Vera, Javier; González-Díaz, Sandra Nora; Guerrero-Núñez, María Gracia Belinda; Hernández-Colín, Dante Daniel; Macías-Weinmann, Alejandra; Mendoza-Hernández, David Alejandro; Meneses-Sánchez, Néstor Alejandro; Mogica-Martínez, María Dolores; Moncayo-Coello, Carol Vivian; Montiel-Herrera, Juan Manuel; O'Farril-Romanillos, Patricia María; Onuma-Takane, Ernesto; Ortega-Cisneros, Margarita; Rangel-Garza, Lorena; Stone-Aguilar, Héctor; Torres-Lozano, Carlos; Venegas-Montoya, Edna; Wakida-Kusunoki, Guillermo; Partida-Gaytán, Armando; López-García, Aída Inés; Macías-Robles, Ana Paola; Ambriz-Moreno, María de Jesús; Azamar-Jácome, Amyra Ali; Beltrán-De Paz, Claudia Yusdivia; Caballero-López, Chrystopherson; Fernández de Córdova-Aguirre, Juan Carlos; Fernández-Soto, José Roberto; Lozano-Sáenz, José Santos; Oyoqui-Flores, José Joel; Osorio-Escamilla, Roberto Efrain; Ramírez-Jiménez, Fernando.
World Allergy Organ J ; 13(8): 100444, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32884611

RESUMO

BACKGROUND: Allergen immunotherapy (AIT) has a longstanding history and still remains the only disease-changing treatment for allergic rhinitis and asthma. Over the years 2 different schools have developed their strategies: the United States (US) and the European. Allergen extracts available in these regions are adapted to local practice. In other parts of the world, extracts from both regions and local ones are commercialized, as in Mexico. Here, local experts developed a national AIT guideline (GUIMIT 2019) searching for compromises between both schools. METHODS: Using ADAPTE methodology for transculturizing guidelines and AGREE-II for evaluating guideline quality, GUIMIT selected 3 high-quality Main Reference Guidelines (MRGs): the European Academy of Allergy, Asthma and Immunology (EAACI) guideines, the S2k guideline of various German-speaking medical societies (2014), and the US Practice Parameters on Allergen Immunotherapy 2011. We formulated clinical questions and based responses on the fused evidence available in the MRGs, combined with local possibilities, patient's preference, and costs. We came across several issues on which the MRGs disagreed. These are presented here along with arguments of GUIMIT members to resolve them. GUIMIT (for a complete English version, Supplementary data) concluded the following. RESULTS: Related to the diagnosis of IgE-mediated respiratory allergy, apart from skin prick testing complementary tests (challenges, in vitro testing and molecular such as species-specific allergens) might be useful in selected cases to inform AIT composition. AIT is indicated in allergic rhinitis and suggested in allergic asthma (once controlled) and IgE-mediated atopic dermatitis. Concerning the correct subcutaneous AIT dose for compounding vials according to the US school: dosing tables and formula are given; up to 4 non-related allergens can be mixed, refraining from mixing high with low protease extracts. When using European extracts: the manufacturer's indications should be followed; in multi-allergic patients 2 simultaneous injections can be given (100% consensus); mixing is discouraged. In Mexico only allergoid tablets are available; based on doses used in all sublingual immunotherapy (SLIT) publications referenced in MRGs, GUIMIT suggests a probable effective dose related to subcutaneous immunotherapy (SCIT) might be: 50-200% of the monthly SCIT dose given daily, maximum mixing 4 allergens. Also, a table with practical suggestions on non-evidence-existing issues, developed with a simplified Delphi method, is added. Finally, dissemination and implementation of guidelines is briefly discussed, explaining how we used online tools for this in Mexico. CONCLUSIONS: Countries where European and American AIT extracts are available should adjust AIT according to which school is followed.

3.
Gac Med Mex ; 155(5): 481-486, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31695233

RESUMO

INTRODUCTION: Common variable immunodeficiency (CVID) is the main symptomatic primary immunodeficiency and is associated with complex immune disorders. Gut microbiota interacts closely with the immune system, and intestinal dysbiosis is related to multiple diseases. OBJECTIVE: To describe for the first time the composition of gut microbiota in Mexican patients with CVID. METHODS: Fecal samples from five patients with CVID were collected and massive sequencing of the V3-V4 region of 16S rRNA gene was carried out using illumina technology. RESULTS: Bacterial relative abundance was observed at all taxonomic levels. Firmicutes, Actinobacteria and Verrucomicrobia were the predominant phyla. The Clostridia class and the Clostridial order were the most common in their respective taxon; the Ruminococcaceae family predominated. A total of 166 genera were reported, with the most abundant being Faecalibacterium. Five species were identified, but only Bifidobacterium longum was present in all patients. CONCLUSIONS: Unlike healthy subjects' gut microbiota, where Firmicutes and Bacteroidetes predominate, the microbiota of the patients with CVID considered in this study was abundant in Firmicutes, Actinobacteria and Verrucomicrobia. The low presence of Bacteroidetes and high abundance of Firmicutes might indicate the existence of intestinal dysbiosis in these patients.


INTRODUCCIÓN: La inmunodeficiencia común variable (IDCV) es la principal inmunodeficiencia primaria sintomática y cursa con alteraciones inmunes complejas. La microbiota intestinal interactúa estrechamente con el sistema inmune y la disbiosis intestinal está relacionada con múltiples patologías. OBJETIVO: Describir por primera vez la composición de la microbiota intestinal en pacientes mexicanos con inmunodeficiencia común variable. MÉTODO: Se recolectaron muestras fecales de cinco pacientes con inmunodeficiencia común variable y se llevó a cabo secuenciación masiva de la región V3-V4 del gen 16S rRNA mediante tecnología Illumina. RESULTADOS: Se observó abundancia bacteriana relativa a todos los niveles taxonómicos. Firmicutes, Actinobacteria y Verrucomicrobia fueron los filos predominantes. La clase Clostridia y el orden Clostridiales fueron los principales en su respectivo taxón; predominó la familia Ruminococcaceae. Se reportaron 166 géneros, el más abundante fue Faecalibacterium. Se identificaron cinco especies, pero solo Bifidobacterium longum estuvo presente en todos los pacientes. CONCLUSIONES: A diferencia de la microbiota intestinal de sujetos sanos en quienes predominan Firmicutes y Bacteroidetes, en los pacientes con inmunodeficiencia común variable considerados en este estudio fueron abundantes Firmicutes, Actinobacterias y Verrucomicrobia. La baja abundancia de bacteroidetes y alta de firmicutes podrían significar disbiosis intestinal.


Assuntos
Imunodeficiência de Variável Comum/microbiologia , Disbiose/microbiologia , Microbioma Gastrointestinal , Actinobacteria/isolamento & purificação , Bactérias/classificação , Bacteroidetes/isolamento & purificação , Fezes/microbiologia , Firmicutes/isolamento & purificação , Humanos , México , RNA Ribossômico 16S/genética , Verrucomicrobia/isolamento & purificação
4.
Rev Alerg Mex ; 66 Suppl 1: 1-105, 2019.
Artigo em Espanhol | MEDLINE | ID: mdl-31200597

RESUMO

BACKGROUND: In Mexico, allergen immunotherapy (AIT) and immunotherapy with hymenoptera venom (VIT) is traditionally practiced combining aspects of the European and American school. In addition, both types of extracts (European and American) are commercially available in Mexico. Moreover, for an adequate AIT/VIT a timely diagnosis is crucial. Therefore, there is a need for a widely accepted, up-to-date national immunotherapy guideline that covers diagnostic issues, indications, dosage, mechanisms, adverse effects and future expectations of AIT (GUIMIT 2019). METHOD: With nationwide groups of allergists participating, including delegates from postgraduate training-programs in Allergy/Immunology-forming, the guideline document was developed according to the ADAPTE methodology: the immunotherapy guidelines from European Academy of Allergy and Clinical Immunology, German Society for Allergology and Clinical Immunology, The American Academy of Allergy, Asthma and Immunology and American College of Allergy, Asthma, and Immunology were selected as mother guidelines, as they received the highest AGREE-II score among international guidelines available; their evidence conforms the scientific basis for this document. RESULTS: GUIMIT emanates strong or weak (suggestions) recommendations about practical issues directly related to in vivo or in vitro diagnosis of IgE mediated allergic diseases and the preparation and application of AIT/VIT and its adverse effects. GUIMIT finishes with a perspective on AIT modalities for the future. All the statements were discussed and voted on until > 80 % consensus was reached. CONCLUSIONS: A wide and diverse group of AIT/VIT experts issued transculturized, evidence-based recommendations and reached consensus that might improve and standardize AIT practice in Mexico.


Antecedentes: En México, la inmunoterapia con alérgenos (ITA) y con veneno de himenópteros (VIT) se practica tradicionalmente combinando criterios de las escuelas europea y estadounidense; los dos tipos de extractos están comercialmente disponibles en México. Para una ITA adecuada es crucial un diagnóstico oportuno. Objetivo: Presentar GUIMIT 2019, Guía Mexicana de Inmunoterapia 2019, de base amplia, actualizada, que abarca temas de diagnóstico, indicaciones, dosificación, mecanismos, efectos adversos de la ITA y expectativas con esta modalidad de tratamiento. Método: Con la participación de múltiples grupos mexicanos de alergólogos, que incluían los centros formadores universitarios en alergia e inmunología, se desarrolló el documento de la guía según la metodología ADAPTE. Las guías de inmunoterapia de la European Academy of Allergy and Clinical Immunology, The American Academy of Allergy, Asthma and Immunology, German Society for Allergology and Clinical Immunology y del American College of Allergy, Asthma, and Immunology se seleccionaron como guías fuente, ya que recibieron la puntuación AGREE-II más alta entre las guías internacionales disponibles; su evidencia conforma la base científica de GUIMIT 2019. Resultados: En GUIMIT 2019 se emiten recomendaciones fuertes o débiles (sugerencias) acerca de temas directamente relacionados con el diagnóstico in vivo o in vitro de las enfermedades alérgicas mediadas por IgE, la preparación y aplicación de ITA o VIT y sus efectos adversos; se incluye la revisión de las modalidades de ITA para el futuro. Todos los argumentos que se exponen fueron discutidos y votados con > 80 % de aprobación. Conclusión: Un grupo amplio y diverso de expertos en ITA y VIT emitió recomendaciones transculturizadas basadas en evidencia, que alcanzaron consenso; con ellas se pretende mejorar y homologar la práctica de la inmunoterapia en México.


Assuntos
Hipersensibilidade/diagnóstico , Hipersensibilidade/terapia , Imunoglobulina E , Imunoterapia/normas , Humanos , Hipersensibilidade/imunologia , Imunoglobulina E/imunologia
5.
Gac Med Mex ; 155(5): 447-452, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-32091022

RESUMO

INTRODUCTION: Common variable immunodeficiency (CVID) is the main symptomatic primary immunodeficiency and is associated with complex immune disorders. Gut microbiota interacts closely with the immune system, and intestinal dysbiosis is related to multiple diseases. OBJECTIVE: To describe for the first time the composition of gut microbiota in Mexican patients with CVID. METHODS: Fecal samples from five patients with CVID were collected and massive sequencing of the V3-V4 region of 16S rRNA gene was carried out using illumina technology. RESULTS: Bacterial relative abundance was observed at all taxonomic levels. Firmicutes, Actinobacteria and Verrucomicrobia were the predominant phyla. The Clostridia class and the Clostridial order were the most common in their respective taxon; the Ruminococcaceae family predominated. A total of 166 genera were reported, with the most abundant being Faecalibacterium. Five species were identified, but only Bifidobacterium longum was present in all patients. CONCLUSIONS: Unlike healthy subjects' gut microbiota, where Firmicutes and Bacteroidetes predominate, the microbiota of the patients with CVID considered in this study was abundant in Firmicutes, Actinobacteria and Verrucomicrobia. The low presence of Bacteroidetes and high abundance of Firmicutes might indicate the existence of intestinal dysbiosis in these patients.


Assuntos
Imunodeficiência de Variável Comum/microbiologia , Microbioma Gastrointestinal , Actinobacteria/isolamento & purificação , Adulto , Bactérias/classificação , Bacteroidetes/isolamento & purificação , Bifidobacterium longum/isolamento & purificação , Clostridiales/isolamento & purificação , Clostridium/isolamento & purificação , Disbiose/imunologia , Disbiose/microbiologia , Faecalibacterium/isolamento & purificação , Fezes/microbiologia , Firmicutes/isolamento & purificação , Microbioma Gastrointestinal/imunologia , Humanos , México , RNA Ribossômico 16S/genética , Ruminococcus/isolamento & purificação , Verrucomicrobia/isolamento & purificação
6.
Alergia (Méx.) ; 39(4): 81-5, jul.-ago. 1992. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-118261

RESUMO

Se estudiaron 40 niños con una o más enfermedades alérgicas perennes (asma bronquial, rinitis alérgica o dermatitis atópica) con el fin de determinar el valor en nuestro medio de las pruebas in vivo e in vitro más utilizadas para el diagnóstico de alergia, como la IgE total sérica, IgG alergenoespecífica (RAST) y pruebas cutáneas utilizando el método de punción en pacientes sensibles a D.pteronissinus, D. farinae o ambos. Todos los pacientes tuvieron pruebas cutáneas positivas. La IgE total sérica estuvo elevada en 95 porciento de los casos, con un pobre coeficiente de correlación (r) al comparar el grado de reacción cutánea y la concentración de IgE total sérica, no existiendo significancia estadística. Por otro lado, 95 porciento de los pacientes tuvieron RAST positivo con un coeficiente de correlación de 0.31 (p< 0.05). Se concluye que en nuestro país, la historia clínica y las pruebas cutáneas son suficientes en un porcentaje razonable para hacer el diagnóstico de alergia, en pacientes sensibles a ácaros de polvo casero.


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Adolescente , Ácaros/imunologia , Testes Imunológicos/métodos , Dermatite Atópica/diagnóstico , Poeira , Imunoglobulina E , México , Hipersensibilidade Respiratória/diagnóstico , Testes Cutâneos
7.
Bol. méd. Hosp. Infant. Méx ; 43(9): 565-9, sept. 1986. tab
Artigo em Espanhol | LILACS | ID: lil-39984

RESUMO

Se hizo un estudio retrospectivo de 21 recién nacido que fallecieron con el diagnóstico de enterocolitis necrosante (ECN) durante el periodo de 1980 a 1985. La edad gestacional promedio fue de 33.9 semanas (variación de 29 a 42), con un peso medio de 1,789 (variación de 960 a 3600). Se documentaron antecedentes de riesgo en 86% de los pacientes. De estos, predominó la hipóxia perinatal, presentándose en 51% de los niños. El signo clínico inicial más común fue la distensión abdominal que se observó en todos los pacientes, seguido de sangre en las evacuaciones y letargia. El 76.1% de los recién nacido estuvieron en los estadios II y III de la clasificación de Bell. En todos los pacientes se encontraron cambios definitivos en el estudio de anatomía patológica, siendo el hallazgo más frecuente la presencia de quistessubmucosos llenos de gas, de las cuales 85% se localizaron en ileón y colon. Los hemocultivos y coprocultivos fueron positivos en el 36% de los casos con predominio e E. coli y Klebsiella. Finalmente, se presenta unn análisis de las hipótesis actuales sobre la fisiopatología y se hacen algunas recomendaciones para prevenir la enfermedad


Assuntos
Recém-Nascido , Humanos , Enterocolite Pseudomembranosa/patologia , Enterocolite Pseudomembranosa/prevenção & controle , Escherichia coli/isolamento & purificação , Íleo/patologia , Klebsiella/isolamento & purificação
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