Clinical characteristics and functional outcome of pediatric ocular trauma in a third level reference hospital in Guadalajara, Mexico.

BACKGROUND: Ocular trauma is one of the leading causes of decreased visual acuity and monocular blindness in the pediatric population. Since its occurrence is potentially preventable, it is essential to understand its demographic characteristics and risk factors to alert and implement prevention and health promotion programs. METHODS: We conducted a retrospective study in which we reviewed 187 clinical records of patients ≤ 15 years old with the diagnosis of severe ocular trauma admitted in 2017 to the Hospital Civil de Guadalajara. We analyzed demographic variables, circumstances of the event, type of treatment, and the evolution of visual acuity and complications. RESULTS: In total, 187 patients and 188 eyes were included; the average age was 6.99 ± 4.1 years. Children of 2 to 5 years of age (41%) were the most affected, and a higher occurrence was observed in males (73%). Open ocular trauma was the most common type of injury (72.7%) caused by sharp objects (45.4%). Most injuries occurred at home (78.1%), without adult supervision (48.1%), and during leisure time (74.9%). Most events were accidental (80.4%), although 12.3% were direct aggression. Surgery was required in 179 patients, in whom corneal injury repair (43.2%) was the most commonly used procedure. Final visual acuity was quantified in 132 eyes, and visual acuity < 20/200 was found in 18.1%. Loss of 4.2% of the eyeballs was recorded. CONCLUSIONS: The highest proportion of cases was identified in male patients ≤5 years old, unsupervised by an adult. Many eye injuries are preventable, so it is necessary to implement socio-educational programs in alliance with pediatric organizations that alert the severity of the problem and promote safe environments.

INTRODUCCIÓN: El trauma ocular es una de las principales causas de disminución de la agudeza visual y de ceguera monocular en la población pediátrica. Su ocurrencia es potencialmente prevenible, por lo que es importante entender sus características demográficas y riesgos para alertar e implementar programas enfocados hacia la prevención y la promoción de la salud. MÉTODOS: Estudio retrospectivo en el que se analizaron 187 expedientes de pacientes ≤ 15 años con diagnóstico de trauma ocular grave ingresados en 2017 al Hospital Civil de Guadalajara. Se analizaron variables demográficas, circunstancias del evento y tipo de tratamiento, así como la evolución de la agudeza visual y las complicaciones. RESULTADOS: Se incluyeron 187 pacientes y 188 ojos; el promedio de edad en el momento del trauma fue de 6.99 ± 4.1 años. Los niños de 2-5 años (41%) fueron los más afectados y se observó una mayor ocurrencia en el sexo masculino (73%). El trauma ocular abierto fue el tipo de lesión más común (72.7%), causado por objetos punzantes (45.4%). La mayoría de las lesiones ocurrieron en casa (78.1%), sin supervisión de un adulto (48.1%) y durante el tiempo libre (74.9%). La mayoría de los sucesos fueron accidentales (80.4%), aunque el 12.3% fue por agresiones directas. Se requirió cirugía en 179 pacientes, en quienes la reparación de lesión corneal (43.2%) fue el procedimiento más utilizado. La agudeza visual final se cuantificó en 132 ojos y se encontró < 20/200 en el 18.1%. Se registró la pérdida del 4.2% de los globos oculares. CONCLUSIONES: La proporción más alta de casos se identificó en pacientes de sexo masculino ≤ 5 años, que se encontraban sin supervisión. Una gran proporción de las lesiones oculares son prevenibles, por lo que es necesario implementar programas educativos sociales en coordinación con organizaciones pediátricas que alerten de la gravedad del problema y promuevan entornos seguros.

In vivo assessment and characterization of lactic acid bacteria with probiotic profile isolated from human milk powder / Evaluación y caracterización in vivo de bacterias acidolácticas con perfil probiótico aisladas a partir de leche materna en polvo

INTRODUCTION: breast milk (MH) contains nutrients and bioactive compounds for child development, including probiotic bacteria, which contribute to intestinal maturation. This benefit accompanies the individual until adulthood. There are new methods such as spray drying that give this compound a good conservation without loss of microbiota. OBJECTIVE: the aim of this study was to analyze the viability of lactic acid bacteria isolated from human milk with probiotic potential after the spray drying process, as well as to evaluate the possible adhesion in the colon of mice of the Balb/C strain after feeding them powdered human milk and a commercial formula milk. METHOD: we isolated and identified the presence of lactic acid bacteria with possible probiotic potential in powdered human milk using the MALDI-TOF MS technique. Powdered human milk and a commercial formula milk were fed to mice of the Bald/C strain for 14 weeks. Glucose level and weight were measured in the mice. The feces were collected to verify the presence of lactic bacteria. The mice were sacrificed and their intestines were weighed, isolating the lactic acid bacteria both from the intestines and from the feces. The strains isolated from mice fed human milk were evaluated for their probiotic potential, analyzing their ability to inhibit pathogens, resistance to pH, temperature, adhesion, and hydrophobicity. RESULTS: the presence of Lactobacillus fermentum LH01, Lactobacillus rhamnosus LH02, Lactobacullis reuteri LH03, and Lactobacillus plantarum LH05 in powdered human milk was identified. All strains showed a possible probiotic profile due to the ability of bacteria to resist low pH, bile salts, and exposure to gastric enzymes, as well as their hydrophobicity and self-aggregation capacity, and their failure to show hemagglutination or hemolysis activity in a culture medium rich in erythrocytes. We observed that the consumption of powdered human milk prevented weight gain and constipation in mice. CONCLUSIONS: after spray drying, strains with possible probiotic potential may be preserved in human milk. The consumption of powdered human milk with probiotic bacteria prevents constipation and weight gain in mice, when compared to those fed a commercial formula milk

INTRODUCCIÓN: la leche materna (HM) contiene los nutrientes y compuestos bioactivos necesarios para el desarrollo infantil, incluidas bacterias probióticas, que contribuyen a la maduración intestinal. OBJETIVO: el objetivo de este estudio fue analizar la viabilidad de las bacterias acidolácticas aisladas de la leche humana con potencial probiótico, después del proceso de secado, así como evaluar su posible adhesión en el colón de ratones (BAlb/C) alimentados con leche humana en polvo y leche de una fórmula comercial. MÉTODO: se aislaron e identificaron mediante la técnica de Maldi-Tof-MS las bacterias acidolácticas con posible potencial probiótico en la leche humana en polvo. Se alimentó con leche humana en polvo y leche de una fórmula comercial a ratones de la cepa Bald/C durante 14 semanas. Se midieron el nivel de glucosa y el peso. Las heces se recolectaron para verificar la presencia de bacterias lácticas. Los ratones se sacrificaron y se pesaron los intestinos, aislando las bacterias lácticas tanto de los intestinos como de las heces. En las cepas aisladas de la leche humana se evaluó el potencial probiótico analizando su capacidad para inhibir patógenos, resistir distintos pH y temperaturas, adherirse y mostrar hidrofobicidad. RESULTADOS: se identificó la presencia de Lactobacillus fermentum LH01, Lactobacillus rhamnosus LH02, Lactobacullis reuteri LH03 y L. plantarum LH05 en la leche humana en polvo. Todas las cepas mostraron resistencia a los pH bajos, a las sales biliares y a la exposición a enzimas gástricas, así como una buena hidrofobicidad y capacidad de autoagregación. Además, no presentaron actividad de hemaglutinación o hemólisis en un medio de cultivo rico en eritrocitos. Observamos que el consumo de leche humana en polvo evita en los ratones el aumento de peso y el estreñimiento. CONCLUSIONES: después del secado por aspersión, las cepas con posible potencial probiótico pueden conservarse en la leche materna. El consumo de leche humana en polvo con bacterias probióticas evita el estreñimiento y el aumento de peso en los ratones, en comparación con los alimentados con leche de una formula comercial

Prevention of severe respiratory syncytial virus infection in the pediatric population in Mexico: position of a group of experts.

Respiratory syncytial virus (RSV) is the agent that causes more hospitalizations and deaths due to lower acute respiratory infection. Its distribution is widespread, and almost every child has been infected by the age of two years. Different risk populations have been identified: preterm newborns (NB), children with congenital heart disease, bronchopulmonary dysplasia, Down syndrome, cystic fibrosis, asthmatics, neuromuscular diseases, among others. However, preterm NBs, children with congenital heart disease or bronchopulmonary dysplasia show higher rates of hospitalization and death from RSV. In the late 90s, monoclonal antibodies against RSV were developed, with demonstrated efficacy and safety for the prevention of RSV hospitalizations in these populations. Currently, the American Academy of Pediatrics recommends this therapy for the prevention of severe infection in the population at higher risk. Economic evaluations have been conducted to determine the effectiveness of immunization, resulting favorable for palivizumab. Immunization in Mexico has resulted cost-effective in NBs under 32 gestation weeks. Mexican authorities should discuss the inclusion of palivizumab in their clinical guidelines.

El virus sincicial respiratorio (VSR) es el agente que ocasiona más hospitalizaciones y muertes por infección aguda de vías respiratorias bajas. La mayoría de los niños ya han sido infectados a los 2 años de edad. Se han identificado diferentes poblaciones de riesgo: recién nacidos pretérmino y niños con cardiopatía congénita, displasia broncopulmonar, síndrome de Down, fibrosis quística, asma y enfermedades neuromusculares, entre otras. Sin embargo, las tasas de hospitalización y de muerte por VSR son más altas en los recién nacidos pretérmino y en los niños con cardiopatía congénita o displasia broncopulmonar. A finales de los años 90 se desarrollaron anticuerpos monoclonales contra el VSR, los cuales demostraron ser eficaces y seguros en la prevención de hospitalizaciones por VSR en estas poblaciones. Actualmente, la American Academy of Pediatrics los recomienda para la prevención de la infección grave en la población de mayor riesgo. Se ha recurrido a evaluaciones económicas para determinar la efectividad de la inmunización, las cuales han sido favorables para el palivizumab. En México se ha demostrado que la inmunización es costo-efectiva en los recién nacidos menores de 32 semanas de gestación. Las autoridades mexicanas deben discutir la inclusión del palivizumab en sus guías de práctica clínica.

Case series of infants presenting with end stage retinopathy of prematurity to two tertiary eye care facilities in Mexico: underlying reasons for late presentation.

To describe the characteristics of infants with bilateral Stage 4b or 5 ROP (i.e. with subtotal or total retinal detachment) who presented to eye departments in two major cities in Mexico, to identify reasons why they may have become blind in order to recommend how programs could be improved. A large case-series of infants with Stage 4b or 5 ROP in both eyes confirmed by ultrasound who attended the ROP Clinic, Hospital Civil de Guadalajara from September 2010 to November 2012, and the Department of Ophthalmology, Hospital Infantil de Mexico Federico Gomez from December 2011 to December 2012 were identified from the diagnostic databases of each hospital. Mothers of infants in Guadalajara had a telephone interview. 89/94 eligible infants were included in the study, 48 in Guadalajara and 41 in Mexico City. Cases came from 22 of the 32 states in Mexico. Half of the infants attending Guadalajara 24/48 (50 %) had been cared for in NICUs without ROP screening programs and were not examined. Among the 24 infants cared for in NICUs with ROP programs, 7/24 (29.1 %) mothers reported that their infant had not been examined while in the NICU, and a further 9/24 (37.5 %) were either not referred for screening after discharge or they did not attend. Two infants had failed laser treatment. Strategies and resources to prevent end stage ROP have not been firmly established in Mexico. There is an urgent need to expand the coverage and quality of ROP programs, to ensure that existing screening guidelines are better adhered to, and to improve communication with parents.