Retinopatía asociada a melanoma. Reporte de caso y revisión de literatura / Melanoma associated retinopathy. Case report and literature review

Introducción: La retinopatía asociada a melanoma (RAM) es un desafío para el equipo tratante de pacientes oncológicos debido a la inespecificidad del cuadro clínico y a la dificultad de realizar exámenes que ofrezcan un diagnóstico. Métodos: Paciente 55 años, sexo femenino con diagnóstico de melanoma, consulta por escotoma central asociado a síntomas visuales positivos. Resultados: Examen oftalmológico dentro de rangos normales. Electrorretinograma (ERG) estándar muestra respuesta máxima electronegativa en ambos ojos, sugerente de RAM. Discusión: El reconocimiento temprano de RAM mediante ERG tiene importancia diagnóstica, permitiendo iniciar tratamiento temprano y reducir el riesgo irreversible de daño a la retina.

Introduction: Melanoma-associated retinopathy (MAR) is a challenge for the oncology team due to the non-specific clinical presentation and the associated difficulty of performing indicative tests for diagnosis. Methods: A 55-year-old female patient initially diagnosed with melanoma consults due to vision with central scotoma associated with positive visual symptoms. Results: Ophthalmological examination within normal ranges. Standard electroretinogram (ERG) shows the maximum electronegative response in both eyes, suggesting MAR. Discussion: The early recognition of MAR by ERG has diagnostic importance because it would allow a possible early treatment and could reduce the risk of irreversible retina damage.

Comparative spatially explicit approach for testing effects of soil chemicals on terrestrial wildlife bioindicator demographics.

Wildlife species are often used as bioindicators to evaluate the extent and severity of environmental contamination and the effectiveness of remediation practices. A common approach for investigating population- or community-level impacts on bioindicators compares demographic parameter estimates (e.g., population size or density) between sites that were subjected to different levels of contamination. However, the traditional analytical method used in such studies is nonspatial capture-recapture, which results in conclusions about potential relationships between demographics and contaminants being inferred indirectly. Here, we extend this comparative approach to the spatially explicit framework, allowing direct estimation of said relationships and comparisons between study areas, by applying spatial capture-recapture (SCR) models to bioindicator (deer mice [Peromyscus spp.]) detection data from two study areas that were subjected to different industrial activities and remediation practices. Bioindicator density differed by 178% between the neighboring study areas, and the area with the highest soil concentrations of polychlorinated biphenyls, chromium, and zinc had the highest bioindicator density. Under the traditional nonspatial approach, we might have concluded that soil chemical levels had negligible influences on demographics. However, by modeling density as a spatial function of select chemical concentrations using SCR models, we found strong support for a positive relationship between density and soil chromium concentrations in one study area (ß = 0.82), which was not masked by or associated with habitat-related metrics. To obtain reliable inferences about potential effects of environmental contamination on bioindicator demographics, we contend that a comparative spatially explicit approach using SCR ought to become standard.

A monograph of the genus Polylepis (Rosaceae).

We present a monograph of the high Andean tree genus Polylepis (Rosaceae), based on a species concept considering morphological, climatic and biogeographic distinctness as indicators of evolutionary independence. In total, we recognize 45 species of Polylepis, grouped in five sections. Polylepissect.Sericeae is represented by 15 species in four subsections, P.sect.Reticulatae by seven species, P.sect.Subsericantes by three species, P.sect.Australes by two species and P.sect.Incanaee by three subsections with 18 species. We describe seven new species, one from Colombia (P.frontinensis), one from Ecuador (P.simpsoniae) and five from Peru (P.acomayensis, P.fjeldsaoi, P.occidentalis, P.pilosissima and P.sacra). Three species from Peru (P.albicans, P.pallidistigma and P.serrata) are re-instated as valid species. Two taxa from Bolivia (P.incanoides and P.nana) are elevated from subspecies to species rank. The morphology, habitat, distribution, ecology and conservation status of each species are documented. We also provide an identification key to the species of the genus and general introductions on taxonomic history, morphology, evolution, ecology and conservation.

Percepción universitaria sobre el cuidado responsable de animales de compañía en Costa Rica / College Student Perception on the Companion Animal Responsible Care in Costa Rica

Resumen El estudio tuvo como objetivo analizar el conocimiento que tienen los universitarios sobre el manejo responsable de mascotas en sus hogares. Se realizó un estudio transversal a la población universitaria, cuyo tamaño muestral fue estimado en 369 personas, aunque se encuestaron a 393 estudiantes. El 99 % de los sujetos reporto tener mascotas, y el perro fue el animal más común dentro de los hogares. El método de desparasitación más comúnmente utilizado fue el de uso interno 59,6 %. Las mascotas son desparasitadas más comúnmente cada 3 meses. Se encontró que es más probable que los hombres en posesión de una mascota la lleven al veterinario con respecto a las mujeres y el 65,3 % de los encuestados reporta que sus mascotas duermen dentro del hogar. Este es el primer estudio en Costa Rica que muestra la forma en que los poseedores de mascotas conviven y cuidan de ellas. La mayoría de los sujetos no conoce el desparasitante que aplica en sus mascotas. Es necesario reforzar la educación en los propietarios para que conozcan más sobre los productos que utilizan en sus mascotas y quién los está recomendando, así como las implicaciones de una correcta higiene en ellas.

Abstract This study aims to analyze the knowledge by college students on the responsible management of pets at home. A cross-sectional study was conducted on the college population with an estimated sample of 369 persons, even though 393 were surveyed. Out of them, 99% reported to have a pet and the dog was the most common in their homes. The home de-worming was the most commonly used method (59.6%) to that end. Pets are de-wormed quarterly in most cases. It was found that men are more likely to bring the pet to the doctor as compared to women and 65.3% of the surveyed sample states that their pets sleep inside the house. This is the first studied conducted in Costa Rica showing how pet owners live with and care them. Most of the subjects do not know the de-worming drug being administered to their pets. There is a need to strengthen the education among pet owners so that they got to know more about the products being used in their pets, who recommends the product, and the implications of the correct hygiene.

Déficit congénito de proteína de surfactante: caso clínico / Deficiency of surfactant protein: Case report

Introducción: El déficit congénito de surfactante es una entidad de diagnóstico inhabitual en recién nacidos. Se reporta un caso clínico de déficit de proteína B del surfactante, se revisa el estudio, tratamiento y diagnóstico diferencial de los déficit de proteínas del surfactante y enfermedad crónica intersticial de la infancia. Caso clínico: Recién nacido de término que cursa dificultad respiratoria, con velamiento pulmonar recurrente y respuesta transitoria a administración de surfactante. El estudio inmunohistoquímico y genético confirmaron diagnóstico de déficit de proteína B de surfactante. Conclusiones: La enfermedad pulmonar congénita requiere un alto índice de sospecha. El déficit de proteína B de surfactante genera un cuadro clínico progresivo y mortal en la mayoría de los casos, al igual que el déficit de transportador ATP binding cassette, sub-family A member 3 (ABCA3). El déficit de proteína C es insidioso y puede presentarse con un patrón radiológico pulmonar intersticial. Debido a la similitud en el patrón histológico, el estudio genético permite una mayor certeza en el pronóstico y la posibilidad de entregar un adecuado consejo genético.

Introduction: Congenital surfactant deficiency is a condition infrequently diagnosed in newborns. A clinical case is presented of surfactant protein B deficiency. A review is performed on the study, treatment and differential diagnosis of surfactant protein deficiencies and infant chronic interstitial lung disease. Case report: The case is presented of a term newborn that developed respiratory distress, recurrent pulmonary opacification, and a transient response to the administration of surfactant. Immunohistochemical and genetic studies confirmed the diagnosis of surfactant protein B deficiency. Conclusions: Pulmonary congenital anomalies require a high index of suspicion. Surfactant protein B deficiency is clinically progressive and fatal in the majority of the cases, similar to that of ATP binding cassette subfamily A member 3 (ABCA3) deficiency. Protein C deficiency is insidious and may present with a radiological pulmonary interstitial pattern. Due to the similarity in the histological pattern, genetic studies help to achieve greater certainty in the prognosis and the possibility of providing adequate genetic counselling.

[Deficiency of surfactant protein: Case report]. / Déficit congénito de proteína de surfactante: caso clínico.

INTRODUCTION: Congenital surfactant deficiency is a condition infrequently diagnosed in newborns. A clinical case is presented of surfactant protein B deficiency. A review is performed on the study, treatment and differential diagnosis of surfactant protein deficiencies and infant chronic interstitial lung disease. CASE REPORT: The case is presented of a term newborn that developed respiratory distress, recurrent pulmonary opacification, and a transient response to the administration of surfactant. Immunohistochemical and genetic studies confirmed the diagnosis of surfactant protein B deficiency. CONCLUSIONS: Pulmonary congenital anomalies require a high index of suspicion. Surfactant protein B deficiency is clinically progressive and fatal in the majority of the cases, similar to that of ATP binding cassette subfamily A member 3 (ABCA3) deficiency. Protein C deficiency is insidious and may present with a radiological pulmonary interstitial pattern. Due to the similarity in the histological pattern, genetic studies help to achieve greater certainty in the prognosis and the possibility of providing adequate genetic counselling.

Conocimiento sobre medidas preventivas y prácticas de las madres sobre EDA y su relación con características sociodemográficas / Knowledge about preventive measures and practices of mothers on EDA and its relationship with sociodemographic characteristics

La enfermedad diarreica aguda (EDA) es una enfermedad frecuente en niños, lo que genera consultas numerosas, lo que incentiva a trabajar más en la prevención primaria. Objetivo: determinar el nivel de conocimientos sobre medidas preventivas y prácticas de las madres de niños de un año, sobre la enfermedad diarreica aguda y su relación con características sociodemográficas, realizado en el Centro Materno Infantil Zapallal. Material y métodos: Estudio de tipo descriptivo, correlacional con enfoque cuantitativo. La muestra estuvo conformada por 169 madres de niños de un año que cumplieron con los criterios de selección. La recolección de información se realizó mediante una encuesta. Resultados: Respecto al nivel de conocimiento sobre enfermedad diarreica aguda la mayor proporción de las madres tiene nivel de conocimiento medio (66,3%) y el 16% presentó un nivel de conocimiento bajo. Con respecto al nivel de conocimiento según las dimensiones: en la dimensión enfermedad diarreica aguda predominó el nivel de conocimiento alto con un 48,5%; en las dimensiones medidas preventivas y prácticas en el hogar, el nivel de conocimiento medio se presentó en el 65,1% y 63,3% respectivamente. Con respecto al nivel de conocimiento según grado de instrucción, edad y ocupación no se presentó asociación significativa. Conclusiones: las madres presentaron un nivel de conocimiento medio sobre la enfermedad diarreica aguda.

The acute diarrheal disease (ADD) is a frequent disease in children, which generates numerous consultations, which encourages more work in primary prevention. Objetive: To determine the level of knowledge on preventive measures and practices of mothers of children under one year of on the acute diarrheal disease and its relationship with sociodemographic characteristics, conducted at the Center Maternal and Infant Zapallal. Material and Methods: This is a descriptive, correlational with quantitative approach. The sample consisted of 169 mothers of children in ayear that met the selection criteria the collection of information was conducted through a survey. Results: level of knowledge on acute diarrheal disease the greater proportion of mothers have level of knowledge means (66,3 %) and 16% had a low degree of knowledge. With regard to the level of knowledge according to the dimensions: in the dimension acute diarrheal disease had the knowledge level high with a 48,5 %; in the dimensions preventive measures and practices in the home, level of average knowledge was 65,1 % and 63,3 % respectively. With regard to the level of knowledge according to degree of education, age and occupation are not presented a significant association. Conclusions. mothers presented a level of knowledge on the acute diarrheal disease.