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1.
Rev Alerg Mex ; 71(1): 44-46, 2024 Feb 01.
Article Es | MEDLINE | ID: mdl-38683068

BACKGROUND: Brief erythematous-papular skin rashes suggest the diagnosis of urticaria; However, it may be another type of dermatitis, and complementary examinations must be carried out to establish its diagnosis. CASE REPORT: 53-year-old female patient, diagnosed in 2016 with diffuse large B cell lymphoma, in complete remission. Since 2010, he has had episodes of erythematous-papular lesions lasting 24-36 hours. He received antihistamines, corticosteroids and omalizumab without clinical improvement. The ANA determination was positive (1/320), nuclear mitotic pattern. The skin biopsy was compatible with dermatitis herpetiformis. The study of celiac and locus antibodies showed positivity for HLA-DQ2 and DQ2.5 in heterozygosity. The diagnosis of dermatitis herpetiformis was established. Treatment consisted of a gluten-free diet and prescription of dapsone, with satisfactory results. CONCLUSION: It is important to establish the differential diagnosis of patients with chronic urticaria who do not respond to the reference treatment, in addition to carrying out a thorough clinical examination and physical examination before starting treatment and relying on a multidisciplinary team to establish an accurate diagnosis and treatment. appropriate. Due to the side effects of dapsone, subsequent follow-up of patients is essential.


ANTECEDENTES: Los exantemas cutáneos eritemato-papulares de breve duración sugieren el diagnóstico clínico de urticaria; no obstante, puede tratarse de otro tipo de dermatitis, y para establecer el diagnóstico deben llevarse a cabo exploraciones complementarias. REPORTE DE CASO: Paciente femenina de 53 años, diagnosticada en 2016 con linfoma difuso de células B grandes, en remisión completa. Desde el 2010 manifestó episodios de lesiones eritemato-papulosas, de 24-36 horas de duración. Recibió antihistamínicos, corticoides y omalizumab sin mejoría clínica. La determinación de ANA resultó positiva (1/320), con patrón mitótico nuclear. La biopsia cutánea fue compatible con dermatitis herpetiforme. El estudio de anticuerpos de celiaquía y locus mostró positividad para HLA-DQ2 y DQ2.5 con heterocigosis. Se estableció el diagnosticó de dermatitis herpetiforme. El tratamiento consistió en dieta exenta de gluten y prescripción de dapsona, con resultados satisfactorios. CONCLUSIÓN: Es importante establecer el diagnóstico diferencial de pacientes con urticaria crónica que no responden al tratamiento de referencia, además de efectuar el examen clínico y la exploración física exhaustivos antes de iniciar el protocolo, y apoyarse de un equipo multidisciplinario para establecer el diagnóstico certero y tratamiento adecuado. Debido a los efectos secundarios de la dapsona, es imprescindible el seguimiento posterior de los pacientes.


Chronic Urticaria , Humans , Middle Aged , Female , Chronic Urticaria/etiology , Chronic Urticaria/drug therapy , Chronic Urticaria/diagnosis , Dermatitis Herpetiformis/diagnosis , Dermatitis Herpetiformis/etiology , Dermatitis Herpetiformis/complications , Pruritus/etiology , Diagnosis, Differential , Dapsone/therapeutic use
2.
Rev Alerg Mex ; 70(2): 107-110, 2023 Jun 28.
Article Es | MEDLINE | ID: mdl-37566774

BACKGROUND: Quinine is an alkaloid with antipyretic and anti-infective properties, and also an ingredient in tonic waters. Adverse reactions have been reported with this product, such as photosensitivity, vasculitis, and contact dermatitis. CASE REPORT: A 31-year-old male patient who, after 3-4 hours of consuming "Schweppes®" gin with tonic water, manifested ulcers on the lips and oral cavity, and a fixed erythematous lesion on the second phalanx of the hand, 24 hours later. Skin tests with aeroallergens and food were negative, and 48-hour patch tests were positive (quinine [++] and "Schweppes®" [++]). Based on the test findings, the diagnosis of an adverse reaction to quinine, contained in the tonic water, will be established. CONCLUSIONS: Quinine can be found in other types of foods or medications, so it is important to establish an accurate diagnosis and offer adequate recommendations to the patient with the consumption of this product.


ANTECEDENTES: La quinina es un alcaloide con propiedades antipiréticas, antiinfecciosas y, además, un ingrediente del agua tónica. Se han descrito reacciones adversas con este producto, como fotosensibilidad, vasculitis y dermatitis de contacto. REPORTE DE CASO: Paciente masculino de 31 años, que luego de 3-4 horas de consumir ginebra con agua tónica "Schweppes®" manifestó úlceras en los labios y la cavidad bucal, y una lesión eritematosa fija en la segunda falange de la mano, 24 horas después. Las pruebas cutáneas con aeroalérgenos y alimentos resultaron negativas, y las pruebas epicutáneas de 48 horas positivas (quinina [++] y "Schweppes®" [++]). Con base en los hallazgos de las pruebas, se estableció el diagnóstico de reacción adversa por quinina, contenida en el agua tónica. CONCLUSIÓN: La quinina puede encontrarse en diferentes alimentos o medicamentos, por lo que es importante establecer el diagnóstico preciso y ofrecer recomendaciones adecuadas por el consumo de este producto.


Photosensitivity Disorders , Quinine , Male , Humans , Adult , Quinine/adverse effects , Allergens , Patch Tests , Water
3.
An. pediatr. (2003. Ed. impr.) ; 89(6): 325-332, dic. 2018. tab, graf
Article Es | IBECS | ID: ibc-177158

INTRODUCCIÓN: La restricción al crecimiento en recién nacidos prematuros se ha relacionado con un peor neurodesarrollo a largo plazo. OBJETIVOS: Definir la incidencia de la restricción del crecimiento posnatal en prematuros ≤ 1.500 gramos y detectar qué marcadores clínicos o bioquímicos se relacionan con la misma. MÉTODOS: Estudio observacional longitudinal retrospectivo. Se utilizaron modelos de regresión lineal multivariante para determinar qué variables permiten predecir el cambio en el z-score de peso durante el ingreso. RESULTADOS: Se incluyeron 130 pacientes, con un peso medio al nacer de 1.161 ± 251g y una edad gestacional de 29,9 ± 2,5 semanas. Al alta hospitalaria el 59,2% tenía un peso < P10. Durante el ingreso los z-score de peso y longitud descendieron una media de -0,85 ± 0,79 y -1,09 ± 0,65, respectivamente. El mayor descenso del z-score se produjo en UCIN, con una velocidad de ganancia ponderal de 6,6 ± 8,8 g/kg/día, tras lo cual tuvo lugar una aceleración del crecimiento (16,7 ± 3,8 g/kg/día) insuficiente para realizar catch-up. Niveles más altos de urea se correlacionaron negativamente con el cambio en el z-score de peso (p < 0,001) y el peso < P10 al nacer lo hizo de forma positiva (p = 0,013). CONCLUSIONES: Más de la mitad de los recién nacidos ≤ 1.500 g presentan un peso al alta < P10. Esta restricción del crecimiento tiene lugar durante el ingreso en UCIN y afecta con menos frecuencia a los neonatos de bajo peso al nacer. Los niveles de urea se correlacionan negativamente con la ganancia ponderal, lo cual obliga a continuar estudiando la relación entre el crecimiento y el compartimento proteico


INTRODUCTION: Growth restriction in preterm infants has been related to a poor neurodevelopment outcome. OBJECTIVES: To define the incidence of postnatal growth restriction in premature babies ≤ 1,500 grams and to detect related clinical or biochemical markers. METHODS: Retrospective longitudinal observational study. Multivariate linear regression models were used to determine variables that can predict the change in weight z-score during admission. RESULTS: The study included 130 patients with a mean birthweight of 1,161 ± 251grams and a gestational age of 29.9 ± 2.5 weeks. At hospital discharge, 59.2% had a weight below P10.During admission, the z-scores of weight and length decreased by - 0.85 ± 0.79 and -1.09 ± 0.65, respectively. The largest decrease in z-score occurred during NICU admission, with a weight gain rate of 6.6 ± 8.8 g/Kg/day, after which growth acceleration took place (16.7 ± 3.8 g/Kg/day), but was insufficient to catch-up.Higher levels of urea were negatively correlated with the change in the z-score of weight (P < .001), and a weight < P10 at birth positively correlated (P = .013). CONCLUSIONS: More than half of newborns ≤ 1,500 grams have a weight at discharge of < P10. This growth restriction occurs during NICU admission, and affects low birth weight infants less frequently. Urea levels correlate negatively with weight gain, which requires further study of the relationship between growth and the protein compartment


Humans , Infant, Newborn , Infant, Premature/physiology , Failure to Thrive , Parenteral Nutrition , Longitudinal Studies , Retrospective Studies , Observational Study , Linear Models , Analysis of Variance
4.
An Pediatr (Engl Ed) ; 89(6): 325-332, 2018 Dec.
Article Es | MEDLINE | ID: mdl-29650428

INTRODUCTION: Growth restriction in preterm infants has been related to a poor neurodevelopment outcome. OBJECTIVES: To define the incidence of postnatal growth restriction in premature babies ≤1,500 grams and to detect related clinical or biochemical markers. METHODS: Retrospective longitudinal observational study. Multivariate linear regression models were used to determine variables that can predict the change in weight z-score during admission. RESULTS: The study included 130 patients with a mean birthweight of 1,161±251grams and a gestational age of 29.9±2.5 weeks. At hospital discharge, 59.2% had a weight below P10.During admission, the z-scores of weight and length decreased by -0.85±0.79 and -1.09±0.65, respectively.The largest decrease in z-score occurred during NICU admission, with a weight gain rate of 6.6±8.8g/Kg/day, after which growth acceleration took place (16.7±3.8g/Kg/day), but was insufficient to catch-up.Higher levels of urea were negatively correlated with the change in the z-score of weight (P<.001), and a weight

Birth Weight/physiology , Infant, Premature/growth & development , Infant, Very Low Birth Weight/growth & development , Weight Gain/physiology , Biomarkers/metabolism , Female , Gestational Age , Humans , Infant, Newborn , Intensive Care Units, Neonatal , Linear Models , Longitudinal Studies , Male , Multivariate Analysis , Patient Discharge , Retrospective Studies , Urea/metabolism
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