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Dirigismo y autoconstrucción. El programa ATEPAM y los debates durante la presidencia de Hilario Zalba en el Instituto de la Vivienda de la provincia de Buenos Aires, Argentina (1958-1962)
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Longoni, Lucas Emilio

; Gregoric, Alejandro

; Labra, Claudio Sebastián

; Carranza, Martin

Anales de Investigación en Arquitectura

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Dez 2023, Volume 13 Nº 2 elocation e204

Resumo: Es En Pt | Texto: Es En Pt | PDF: Es | PDF: En | PDF: Pt

Resumen Con la finalización de la segunda guerra mundial se propagó en Latinoamérica la lógica de la planificación territorial, estimulada desde Estados Unidos a través de centros y entidades hemisféricas que difundieron programas de asistencia técnica. A este fenómeno se sumó la crisis de los llamados “modelos nacionales”, acompañada por un vertiginoso crecimiento demográfico y el desarrollo de las conurbaciones producto de las migraciones campo-ciudad, que pusieron de relieve el creciente problema de la vivienda. El déficit habitacional desbordó las soluciones habitacionales del tipo “llave en mano”, característicos de los decenios precedentes, y en ese contexto, el modelo de autoconstrucción se propuso como solución alternativa. En el marco de los debates continentales alrededor del problema de la vivienda masiva a fines de la década de 1950, el artículo brinda una aproximación a los programas sobre autoconstrucción y asistencia técnica introducidos en el recientemente creado Instituto de la Vivienda de la Provincia de Buenos Aires (IVBA), presidido por Hilario Zalba a partir de 1958. El flamante organismo se insertó en la discusión disciplinar contemporánea llevando adelante políticas que significarían un desplazamiento del rol “dirigista” del Estado argentino hacia los procesos participativos y “descentralizados”, el fomento de la iniciativa privada y la industrialización de la construcción.

Summary With the end of the Second World War, the logic of territorial planning spread in Latin America, stimulated from the United States through hemispheric centers and entities that disseminated technical assistance programs. Added to this phenomenon, was the crisis of the so-called “national models”, accompanied by rapid population growth and the development of conurbations as a result of rural-urban migration, which highlighted the growing housing problem. The housing deficit exceeded the "key on hand" housing solutions, characteristic of previous decades, and in this context, the self-build model was proposed as an alternative solution. Within the framework of the continental debates around the problem of mass housing at the end of the 1950s, the article provides an approach to the programs on self-construction and technical assistance introduced in the recently created Housing Institute of the Province of Buenos Aires (IVBA), chaired by Hilario Zalba since 1958. The entity was inserted into the contemporary disciplinary debate carrying out policies that would mean a displacement of the "director" role of the argentine State, towards participatory and "decentralized" processes, the promotion of private initiative and the industrialization of construction.

Resumo Com o fim da Segunda Guerra Mundial, a lógica do planejamento territorial difundiu-se na América Latina, estimulada a partir dos Estados Unidos por meio de centros e entidades hemisféricas que divulgavam programas de assistência técnica. A este fenómeno somou-se a crise dos chamados “modelos nacionais”, acompanhada pelo rápido crescimento demográfico e pelo desenvolvimento das conurbações resultantes da migração rural-urbana, que evidenciaram o crescente problema habitacional. O défice habitacional ultrapassou as soluções habitacionais “chave na mão”, características das décadas anteriores, e neste contexto, o modelo de autoconstrução foi proposto como solução alternativa. No marco dos debates continentais em torno do problema da habitação coletiva no final da década de 1950, o artigo fornece uma abordagem para os programas de autoconstrução e assistência técnica introduzidos no recém-criado Instituto de Habitação da Província de Buenos Aires (IVBA), presidido por Hilario Zalba desde 1958. O novíssimo corpo inseriu-se no debate disciplinar contemporâneo realizando políticas que significariam um deslocamento do papel “diretor” do Estado para processos participativos e “descentralizados”, a promoção da iniciativa privada e a industrialização da construção.

https://doi.org/10.18861/ania.2023.13.2.3539

Pleistocene distribution of MacConnell’s Bat (Phyllostomidae) suggests intermittent connections between Amazonia and Atlantic Forest
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Silva, Felipe Pessoa

; Silva, Lucas Gonçalves da

; Semedo, Thiago B. F.

; Santos, Tamily C. M.

; Lopes, Gerson Paulino

; Montes, Martin Alejandro

; Garbino, Guilherme S. T.

Therya

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2023, Volume 14 Nº 1 Páginas 55 - 62

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen La biogeografía histórica de los principales biomas de selvas de América del Sur ha intrigado a los científicos durante mucho tiempo. Los eventos paleoclimáticos durante los últimos 130 mil años promovieron conexiones entre biomas de selvas en la región neotropical, lo que llevó a distribuciones disjuntas de parte de la biota. En este contexto, el murciélago de MacConnell, Mesophylla macconnelli, parece ser un ejemplo de especie restringida al bosque con su distribución actual atravesada por las áreas secas de América del Sur. En este estudio, inferimos las conexiones pasadas entre la Amazonía y el Bosque Atlántico utilizando modelos de nicho ecológico y el murciélago de MacConnell. Obtuvimos 681 registros de la especie, y estimamos su distribución potencial durante el Último Interglacial (LIG), Último Máximo Glacial (LGM) y períodos actuales. Nuestros modelos generados, basados en 260 registros de ocurrencia filtrados, tuvieron muy buen poder predictivo, con valores de adherencia AUC y TSS superiores a 0.9. La estacionalidad de la temperatura y la precipitación anual tuvieron la mayor contribución relativa. La distribución potencial en el LIG sugiere una conexión de área adecuada entre el suroeste del Bosque Atlántico y el sur del Cerrado y la Amazonía. La distribución potencial en el LGM sugiere una expansión del rango hacia el norte y el este de la Amazonía. Las distribuciones actuales y pasadas inferidas de Mesophylla macconnelli sugieren al menos dos períodos de conexión pasada entre la Amazonía y el Bosque Atlántico. Este patrón se encuentra en otros vertebrados asociados a los bosques en América del Sur, lo que sugiere que los ciclos climáticos del Pleistoceno fueron fundamentales para la generación de distribuciones disjuntas en la región.

Abstract The historical biogeography of the major South American forested biomes has long intrigued scientists. Paleoclimatic events during the last 130 thousand years promoted connections between forested biomes in the Neotropical region, leading to disjunct distributions of some of the biota. In this context, MacConnell’s Bat, Mesophylla macconnelli, appears to represent a forest-restricted species with its current distribution bisected by dry areas. In this study, we infer past connections between the Amazonia and Atlantic Forest using MacConnell’s Bat and ecological niche models. We obtained 681 records of the species, and estimated its potential distribution during the Last Interglacial (LIG), Last Glacial Maximum (LGM), and current periods. Our generated models, based on 260 filtered occurrence records, had very good predictive power, with AUC and TSS adherence values above 0.9. Temperature seasonality and annual precipitation had the highest relative contribution. The potential distribution for the LIG suggested a suitable area connection between the southwestern Atlantic Forest and southern Cerrado and Amazonia. The potential distribution in the LGM suggests range expansion toward northern and eastern Amazonia. The current and inferred past distributions of Mesophylla macconnelli suggest at least two periods of past connection between Amazon and Atlantic Forest. This pattern is found in other forest-associated vertebrates in South America, suggesting that Pleistocene climatic cycles were central to the generation of disjunct distributions in the region.

https://doi.org/10.12933/therya-23-2219

Surgical Treatment of Constrictive Pericarditis
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Bertazzo, Brunella

; Cicolini, Alejandro

; Fanilla, Martin

; Bertolotti, Alejandro

Brazilian Journal of Cardiovascular Surgery

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2023, Nº ahead

Resumo: En | Texto: En | PDF: En

ABSTRACT Introduction: The mainstay of the treatment of constrictive pericarditis is pericardiectomy. However, surgery is associated with high early morbidity and mortality and low long-term survival. The aim of this study is to describe our series of pericardiectomies performed over 30 years. Methods: A descriptive, observational, and retrospective analysis of all pericardiectomies performed at the Institute of Cardiology and Cardiovascular Surgery of the Favaloro Foundation was performed. Results: A total of 45 patients underwent pericardiectomy between June 1992 and June 2022, mean age was 52 years (standard deviation ± 13.9 years), and 73.3% were men. Idiopathic constrictive pericarditis was the most prevalent (46.6%). The variables significantly associated with prolonged hospitalization were preoperative advanced functional class (incidence of 38.4%, P<0.04), persistent pleural effusion (incidence of 81.8%, P<0.01), and although there was no statistical significance with the use of cardiopulmonary bypass, a trend in this association is evident (P<0.07). We found that 100% of the patients with an onset of symptoms greater than six months had a prolonged hospital stay. In-hospital mortality was 6.6%, and 30-day mortality was 8.8%. The preserved functional class is 17 times more likely to improve their symptomatology after pericardiectomy (odds ratio 17, 95% confidence interval 2.66-71; P<0.05). Conclusion: Advanced functional class at the time of pericardiectomy is the variable most strongly associated with mortality and prolonged hospitalization. Onset of the symptoms greater than six months is also a poor prognostic factor mainly associated with prolonged hospitalization; based on these data, we strongly support the recommendation of early intervention.

https://doi.org/10.21470/1678-9741-2022-0302

Surgical Treatment of Constrictive Pericarditis
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Bertazzo, Brunella

; Cicolini, Alejandro

; Fanilla, Martin

; Bertolotti, Alejandro

Brazilian Journal of Cardiovascular Surgery

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2023, Volume 38 Nº 3 Páginas 320 - 325

Resumo: En | Texto: En | PDF: En

https://doi.org/10.21470/1678-9741-2022-0302

Antibacterial Effect of Hypochlorous Acid on Bacteria Associated with the Formation of Periodontal Biofilms: An in vitro Pilot Study
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Millones-Gómez, Pablo Alejandro

; Novoa-Herrera, Marcos

; Maurtua-Torres, Dora Jesús

; Bacilio-Amaranto, Reyma Evelyn

; Requena-Mendizábal, Margarita Fe

; Calla-Poma, Roger

; Rosales-Cifuentes, Tania Valentina

; Malpartida-Quispe, Federico Martin

; Minchón-Medina, Carlos Alberto

; Romero-Gamboa, Julio César

; Pinella-Vega, Melissa

; Ojeda-Gómez, Roberto Carlos

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2023, Volume 23 elocation e210078

Resumo: En | Texto: En | PDF: En

ABSTRACT Objective: To evaluate the antibacterial effect of electrolytically generated hypochlorous acid on Streptococcus gordonii, Fusobacterium nucleatum, and Porphyromonas gingivalis. Material and Methods: In this in vitro experiment, the effect of hypochlorous acid (HOCl) on the strains S. gordonii, F. nucleatum, and P. gingivalis was evaluated using 4% sodium hypochlorite, 0.12% chlorhexidine, and distilled water as controls. The four groups were placed on each plate, and each group was replicated five times. The agar diffusion method by zones measurement was used. The data were processed with SPSS using the Kruskal-Wallis test and multiple comparison tests. Results: Hypochlorous acid showed an average inhibition halo of 9.28 mm on S. gordonii. As expected with distilled water, no zone of inhibition was noted for any of the bacteria, nor were zones of inhibition observed with HOCl for F. nucleatum and P. gingivalis. Conclusion: Hypochlorous acid showed antimicrobial properties against only S. gordonii and was less effective than 4% sodium hypochlorite and 0.12% chlorhexidine, although no significant differences were found between the latter.

https://doi.org/10.1590/pboci.2023.074

Demografía y COVID-19: Diferenciales sociales y epidemiológicos
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Aja Díaz, Antonio

; Molina Cintra, Matilde de la Caridad

; Trinquete Díaz, Dixie Edith

; Barros Díaz, Otilia Zenaida

; Rodríguez García, Arianna

; Orbea López, Marbelis

; Mora Pérez, Arelis Rosalen

; Araujo González, Rafael

; Farnós Morejón, Alfonso

; Martin Fernández, Consuelo M.

; Dujarric Bermúdez, Gabriela

; Rodríguez Javiqué, Daylin Cecilia

; Terrero Trinquete, Amanda

; Díaz Fernández, Marta

; Benítez Jiménez, Iliana

; Bourzac Macia, Lisset

; Oliveros Domínguez, Eloy Rafael

; Alfonso de Armas, Marisol

; Quintana Llanio, Livia

; Rodríguez Gómez, Grisell

; Castellanos Cabrera, Roxanne

; Bárcenas Alfonso, Jany

; López Bauta, Adis Aymee

; Oroza Fraíz, Teresa

; Cancio-Bello Ayes, Claudia

; Pérez León, Marta Valeria

; Vera Vergara, Vivian

; Llantá Abreu, María del C.

; Lozano Pérez, Teresa Isabel

; Zas Ros, Bárbara

; Gener Serralta, Sandra

; Rivera Fernández, Rosa M.

; Martínez Debs, Leyti

; Quintosa Puebla, Yissel

; Pérez Rodríguez, Nancy

; Oviedo Álvarez, Vivian

; Fernández Lorenzo, Juan Manuel

; Remond Noa, Ricardo

; Torres Reyes, Antonio

; Veranes Miranda, Alejandro

; de la Garma García, Lic. Diana

Anales de la Academia de Ciencias de Cuba

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Dez 2022, Volume 12 Nº 3 elocation e1115

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

ABSTRACT Introduction. The behavior of COVID-19 is influenced by diverse social differentials that transcend demographic variables and include morbidity, the conditions of their homes, family dynamics, job performance, gender roles and stereotypes, care tasks, habits, and behaviors of life and consumption, among others. Methods. Statistical and demographic analysis and tools of metric studies of the information were used. Results and Discussion. The research showed the importance of incorporating into the analysis of the behavior of COVID-19 in Cuba the influence of social and epidemiological differentials determined by skin color, marital status, employment status, income levels, types of families, mobility, hygienic environmental conditions, access to health services, among others, which can place populations in greater or lesser conditions of vulnerability. Conclusions: The composition and dynamics of the population together with other social differentials are determinants of the behavior and expression of the pandemic. The crossing of epidemiological factors with the analysis of containment measures and the composition and structure of the affected population allows for the design of health policies that are more adjusted to the needs of the pandemic. Distance psychological counseling makes it possible to identify and deal with situations related to confinement and changes in life routines that affect the mental health of different groups of people.

RESUMEN Introducción. El comportamiento de la COVID-19 está influenciado por diferenciales sociales que trascienden las variables demográficas e incluyen la morbilidad, las condiciones de sus viviendas, las dinámicas familiares, el desempeño laboral, los roles y estereotipos de género, las tareas de cuidado, los hábitos y comportamientos de vida y consumo, entre otros. Métodos. Se empleó el análisis estadístico y demográfico y herramientas de los estudios métricos. Resultados y Discusión. La investigación mostró la importancia de incorporar a los análisis del comportamiento de la COVID-19 en Cuba la influencia de diferenciales sociales y epidemiológicos determinados por el color de la piel, el estado conyugal, la situación laboral, los niveles de ingreso, los tipos de familias, la movilidad, las condiciones higiénico ambientales, el acceso a los servicios de salud, entre otros, que pueden ubicar a las poblaciones en mayores o menores condiciones de vulnerabilidad. Conclusiones, la composición y la dinámica de la población junto a otros diferenciales sociales son determinantes del comportamiento de la pandemia. El cruzamiento de los factores epidemiológicos con el análisis de las medidas de contención y la composición y estructura de población afectada permite diseñar políticas sanitarias más ajustadas a las necesidades de la pandemia. La orientación psicológica a distancia permite identificar y atender situaciones vinculadas al confinamiento y los cambios en las rutinas de vida que afectan la salud mental de diferentes grupos de personas.

Saliva screening of health care workers for SARS-CoV-2 detection
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Echavarria, Marcela

; Reyesa, Noelia S.

; Rodriguez, Pamela E.

; Ricarte, Carmen

; Ypas, Martin

; Seoane, Alejandro

; Querci, Marcia

; Brizio, Marianela

; Stryjewski, Martin E.

; Carballal, Guadalupe

Revista argentina de microbiología

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Dez 2022, Volume 54 Nº 4 Páginas 61 - 70

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract Health care workers (HCWs) are at high risk for SARS-CoV-2. In addition, pre-symptomatic or asymptomatic transmission accounts for around half of the cases. Saliva testingis an option to detect SARS-CoV-2 infection. To determine the performance of saliva samplesfor screening, HCWs were tested for SARS-CoV-2 by RT-PCR. Those with a positive result insaliva were tested by nasopharyngeal swabbing for viral RNA detection and blood collectionto search for the presence of specific antibodies. In September---October 2020, 100 HCWs wereenrolled and followed up. Six subjects (6%) tested positive in saliva. Of them, 5/6 were positivein a subsequent nasopharyngeal swab and 4/6 developed signs and symptoms compatible withCOVID-19. Among the latter, 3 seroconverted while asymptomatic HCWs remained seronega-tive. Saliva screening was helpful for identifying SARS-CoV-2 infection in HCWs. This screeningpermitted rapid personnel isolation avoiding further transmission of the virus in the hospitalsetting.

Resumen El personal de salud (PS) tiene un alto riesgo de contraer SARS-CoV-2. La transmisión presintomática/asintomática representa alrededor de la mitad de los casos y el análisis a partir de muestras de saliva puede ser una opción para detectar la infección. Para determinar el rendimiento de estas muestras, 100 voluntarios del PS se sometieron a la detección de SARS-CoV-2 por RT-PCR en muestras de saliva en el período septiembre-octubre de 2020. De aquellos con resultado positivo en saliva, se tomaron hisopados nasofaríngeos para detectar ARN viral y muestras de suero para evaluar anticuerpos específicos. Se detectó ARN viral en la saliva de seis individuos (6%). De ellos, 5/6 fueron SARS-CoV-2 positivos en hisopado nasofaríngeo y 4/6 desarrollaron signos y síntomas compatibles con COVID-19. Entre estos últimos, tres serocon-virtieron, en tanto que los voluntarios asintomáticos permanecieron seronegativos. La muestra de saliva fue útil para identificar la infección por SARS-CoV-2 en esta cohorte del personal de salud y así proceder al rápido aislamiento de los individuos infectados, lo que evitó una mayor transmisión del virus en el ámbito hospitalario.

https://doi.org/10.1016/j.ram.2022.05.001

Secuelas respiratorias clínicas, funcionales y tomográficas de pacientes hospitalizados por COVID-19 a seis meses del diagnóstico: estudio SECUELAR-19
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Sívori, Martin

; González, Alejandra

; Saldarini, Fernando

; Martinez Fraga, Alejandro

; Segovia, Jaime

; Rossi, Pamela

; Andreu, Mauro

; Trullas, Florencia

Medicina (Buenos Aires)

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Out 2022, Volume 82 Nº 5 Páginas 673 - 683

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen Introducción: Hay información escasa sobre la evolución de los enfermos hospitalizados por neumonía por COVID-19 a mediano plazo. El objetivo de este estudio fue determinar en pacientes con neumonía moderada (NM) o grave (NG) por COVID-19, el impacto clínico, funcional respiratorio y tomográfico a los 6 meses. Métodos: Se realizó análisis según grupos de NM y NG, desaturadores (PD) en la prueba de cami nata de 6 minutos y presencia del patrón tomográfico de alta resolución (TACAR) símil fibrótico. Se compararon los resultados a los 3 y 6 meses. Resultados: Se incluyeron 129 pacientes, edad 57±11 años, comorbilidades frecuentes (hipertensión arterial 38.1%, diabetes 30.4% y respiratorias 18.6%). Al comparar 3 y 6 meses se ob servó mejoría de la calidad de vida en NM y NG. Los PD presentaron menor metraje caminado, peor calidad de vida y mayor presencia de patrón símil fibrótico. Este patrón se relacionó con la caída de la FVC 80% en NM y NG (p = 0.048 y p = 0.007), y con PD (p = 0.002). En el análisis multivariado, el patrón símil fibrótico s e asoció a la reducción de la CVF con OR = 4.44 (1.94-10.18, p<0.01) y a la desaturación, OR = 5.01 (1.63-15.42, p<0.01). En esta cohorte se observó mayor compromiso funcional y tomográfico en los PD. El patrón símil fibrótico se relacionó con peor evolución funcional y oximétrica. Discusión: Es importante el seguimiento de los pacientes con NG, los PD y los que presentan patrón fibrótico al alta de neumonía por COVID-19.

Abstract Introduction: There is scarce information about middle-term evolution of hospitalized patients who suffer from pneumonia caused by COVID-19. The objective of this study is to determine the clinical, respiratory, tomographic and functional impact on COVID-19 patients with moderate (MP) to severe (SP) pneumonia after six months of acute infection. Methods: Analysis was carried out by MP and SP groups, desaturators during the 6-minute-walking test and the presence of fibrotic like pattern on HRCT. Outcomes at 3 and 6 months were compared. Results: The analysis included 129 patients, between 57 ± 11 years old. Frequent comorbidities were: arterial hypertension 38.1%, diabetes 30.4%, respiratory 18.6%). Comparing 3 and 6 months, improvement in quality of life was observed in MP and SP. The DP walked less meters in the MWT, worsened life quality and more fibrotic like pattern. The fibrotic pattern was related to the fall of CVF < 80% on MP and SP (p = 0.048 and p = 0.007), and with DP (p = 0.002). On multivariated analysis, the fibrotic like pattern was associated to the reduction of CVF with OR = 4.44 (1.94-10.18, p<0.01) and desaturation OR = 5.01(1.63-15.42, p < 0.01). On this cohort it was observed more functional and tomographic compromise on the DP The fibrotic like pattern was related to worse functional evolution and oximetry. Discussion: Follow-up after discharge of COVID-19 patients with SP, DP or fibrotic changes in HCRT is underlined.

Placenta Accreta Spectrum Prenatal Diagnosis Performance: Are Ultrasound False-positive Results Acceptable in Limited-resources Settings?
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Nieto-Calvache, Albaro José

; Benavides-Calvache, Juan Pablo

; Hidalgo, Alejandra

; Padilla, Natalia

; López-Tenorio, Jaime

; Victoria, Alejandro

; Rengifo, Martin

; Mejía, Mauricio

; Vergara-Galliadi, Lina María

; Sinisterra-Díaz, Stiven Ernesto

; Maya, Juliana

; Zambrano, María Andrea

; Burgos-Luna, Juan Manuel

Revista Brasileira de Ginecologia e Obstetrícia

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Set 2022, Volume 44 Nº 9 Páginas 838 - 844

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Objetivo Recomenda-se o encaminhamento imediato de pacientes com fatores de risco para espectro placentário acreta (PAS, na sigla em inglês) para centros especializados, favorecendo assim o diagnóstico precoce e o manejo interdisciplinar. No entanto, erros diagnósticos são frequentes, mesmo em centros de referência (CRs). Buscou-se avaliar o desempenho do diagnóstico pré-natal para PAS em um hospital latino-americano. Métodos Um estudo descritivo retrospectivo incluindo pacientes encaminhados por suspeita de SAP foi realizado. Os dados dos exames de imagem do pré-natal foram comparados com os diagnósticos finais (intraoperatórios e/ou histológicos). Resultados Foram incluídos 162 pacientes no presente estudo. A idade gestacional mediana no momento da primeira ultrassonografia suspeita de PAS foi de 29 semanas, mas as pacientes chegaram ao CR de PAS com 34 semanas. A frequência de resultados falso-positivos nos hospitais de referência foi de 68,5%. Sessenta e nove pacientes foram operadas com base na suspeita de PAS com 35 semanas e houve 28,9% de falso-positivos no CR. Em 93 pacientes, o diagnóstico de PAS foi descartado no CR, com frequência de falso-negativos de 2,1%. Conclusão O diagnóstico pré-natal de PAS é melhor no CR. Entretanto, mesmo nestes centros, resultados falso-positivos são comuns; portanto, a confirmação intraoperatória do diagnóstico de SAP é essencial.

Abstract Objective The immediate referral of patients with risk factors for placenta accreta spectrum (PAS) to specialized centers is recommended, thus favoring an early diagnosis and an interdisciplinary management. However, diagnostic errors are frequent, even in referral centers (RCs). We sought to evaluate the performance of the prenatal diagnosis for PAS in a Latin American hospital. Methods A retrospective descriptive study including patients referred due to the suspicion of PAS was conducted. Data from the prenatal imaging studies were compared with the final diagnoses (intraoperative and/or histological). Results A total of 162 patients were included in the present study. The median gestational age at the time of the first PAS suspicious ultrasound was 29 weeks, but patients arrived at the PAS RC at 34 weeks. The frequency of false-positive results at referring hospitals was 68.5%. Sixty-nine patients underwent surgery based on the suspicion of PAS at 35 weeks, and there was a 28.9% false-positive rate at the RC. In 93 patients, the diagnosis of PAS was ruled out at the RC, with a 2.1% false-negative frequency. Conclusion The prenatal diagnosis of PAS is better at the RC. However, even in these centers, false-positive results are common; therefore, the intraoperative confirmation of the diagnosis of PAS is essential.

https://doi.org/10.1055/s-0042-1751061

10.

Síndrome de Horner en una paciente, luego de la resección de Schwannoma cervical de localización atípica. Presentación de caso y revisión de tema.
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Duque, Carlos S.

; Uribe, Alejandro

; Vanegas, Nataly

; Ochoa, Martin

; Marulanda, Marcela

; Palacio, María Fernanda

Cirugía paraguaya

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Abr 2022, Volume 46 Nº 1 Páginas 24 - 26

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

Summary This is the case of a 57-year-old female patient who was seen due to a right upper neck lower jaw mass. On contrast CT a sympathetic chain Schwannoma was suspected and later confirmed by pathology once the lesion was resected. Thanks to the careful study of her images, the possibility of developing a Horner´s syndrome once the mas was resected was explained to the patient prior to her intervention, as it did happen. It is vital that the surgeon knows the anatomy and physiology of the oculosympathetic pathway and its relationship with the neck structures.

Resumen Mujer de 57 años, sin antecedentes médicos importantes, quien consulto por masa a nivel cervical derecha infra mandibular de dos años de evolución y crecimiento progresivo. La tomografía contrastada demostró tumoración sospechosa de Schwannoma del plexo simpático cervical superior, el cual fue confirmado por patología luego de ser resecado. Gracias a un detallado estudio de las imágenes, se explicó a la paciente en el preoperatorio la posibilidad de desarrollar síndrome de Horner, posterior a la resección de la masa, como en realidad ocurrió. Es importante conocer la anatomía y fisiología de la vía oculosimpática y su relación con estructuras en el cuello.

https://doi.org/10.18004/sopaci.2022.abril.24

11.

Determinación serológica del virus de leucosis enzoótica bovina (VLEB) en el municipio de Paipa, Boyacá (Colombia)
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Jiménez Sánchez, Jorge Alejandro

; Bulla-Castañeda, Diana María

; Díaz-Anaya, Adriana María

; Garcia-Corredor, Diego José

; Pulido-Medellin, Martin Orlando

Revista mexicana de ciencias pecuarias

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Mar 2022, Volume 13 Nº 1 Páginas 200 - 210

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen La leucosis enzoótica bovina (LEB) es una infección económicamente importante del ganado lechero, causada por el virus de la leucemia enzoótica bovina (VLEB). El método habitual de propagación de la infección por VLEB es la transmisión horizontal, a través de la exposición directa e indirecta de animales susceptibles a los linfocitos infectados de la sangre o de la leche. Tras la infección los animales aparentan estar clínicamente sanos durante los primeros años postinfección, pero entre el 30 y 70 % de los animales pueden desarrollar linfocitosis persistente y del 0.1 a 10 % de los bovinos sufren de linfosarcoma. Esta infección se detecta mediante pruebas serológicas, generalmente por el ensayo por inmunoabsorción ligado a enzimas (ELISA). El objetivo de la presente investigación fue determinar la seroprevalencia de VLEB en hembras bovinas del municipio de Paipa (Boyacá). El estudio epidemiológico fue observacional descriptivo de corte (transversal) con muestreo aleatorio simple, en donde se recolectaron 1000 muestras de suero las cuales fueron procesadas mediante la técnica de ELISA indirecta implementando el kit comercial SERELISA® BLV Ab Mono Blocking. Se determinó una seroprevalencia de 31.1 % (311/1000) encontrando asociación estadística significativa entre la raza, la edad y la seropositividad al virus.

Abstract Enzootic Bovine Leukosis (EBL) is an economically important infection of dairy cattle, caused by the Enzootic Bovine Leukemia Virus (EBLV). The usual method of spread of EBLV infection is horizontal transmission, through direct and indirect exposure of susceptible animals to infected lymphocytes from blood or milk. After infection, animals appear to be clinically healthy during the first years after infection, but between 30 and 70 % of animals may develop persistent lymphocytosis and 0.1 to 10 % of cattle suffer from lymphosarcoma. This infection is detected by serological tests, usually by the enzyme-linked immunosorbent assay (ELISA). The objective of this research was to determine the seroprevalence of EBLV in bovine females from the municipality of Paipa (Boyacá). The epidemiological study was Descriptive Observational (Cross-sectional) with simple random sampling, where 1000 serum samples were collected, which were processed using the indirect ELISA technique implementing the commercial kit SERELISA® BLV Ab Mono Blocking. A seroprevalence of 31.1 % (311/1000) was determined, finding a statistically significant association between breed, age and seropositivity for the virus.

https://doi.org/10.22319/rmcp.v13i1.5675 32 downloads

12.

Aflatoxin levels and prevalence of TP53 aflatoxin-mutations in hepatocellular carcinomas in Mexico
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Lino-Silva, Leonardo S

; Lajous, Martín

; Brochier, Marion

; Santiago-Ruiz, Luis

; Melchor-Ruan, Javier

; Xie, Yi

; Wang, Mingyi

; Wu, Dongjing

; Higson, Herbert

; Jones, Kristine

; Romero-Martínez, Martin

; Villalpando, Salvador

; Mohar, Alejandro

; Smith, Joshua W

; Alvarez, Christian S

; McGlynn, Katherine A

; Dean, Michael

; Groopman, John

Salud Pública de México

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Fev 2022, Volume 64 Nº 1 Páginas 35 - 40

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract: Objective: To determine the exposure to aflatoxin B1 (AFB1) in southern Mexico and the presence of the aflatoxin signature mutation in hepatocellular carcinoma (HCC) tissue from patients from a cancer referral center. Materials and methods: We estimated the prevalence and distribution of AFB1 in a representative sample of 100 women and men from Chiapas using the National Health and Nutrition Survey 2018-19. We also examined the presence of the aflatoxin signature mutation in codon 249 (R249S), and other relevant mutations of the TP53 gene in HCC tissue blocks from 24 women and 26 men treated in a national cancer referral center. Results: The prevalence of AFB1 in serum samples was 85.5% (95%CI 72.1-93.1) and the median AFB1 was 0.117 pg/µL (IQR, 0.050-0.350). We detected TP53 R249S in three of the 50 HCCs (6.0%) and observed four other G>T transversions potentially induced by AFB1. Conclusion: Our analysis provides evidence that AFB1 may have a relevant role on HCC etiology in Mexico.

Resumen: Objetivo: Determinar la exposición a aflatoxina_B1 (AFB1) en el sur de México y la presencia de la mutación característica de AFB1 en tejido de carcinoma hepatocelular (CHC) de pacientes de un centro oncológico. Material y métodos: Se estimó la prevalencia y distribución de AFB1 en una muestra representativa de 100 mujeres y hombres de Chiapas a partir de la Encuesta Nacional de Salud y Nutrición 2018-19. También se observó la presencia de la mutación característica de AFB1 en el codón 249 (R249S), y otras mutaciones relevantes del gen TP53 en bloques de tejido de CHC de 24 mujeres y 26 hombres estudiados en un centro de referencia nacional de oncología. Resultados: La prevalencia de AFB1 en las muestras de suero fue de 85.5% (IC95% 72.1-93.1) y la mediana de la concentración 0.117 pg/µL (IQR, 0.050-0.350). Se detectó TP53 R249S en tres de 50 casos de CHC (6.0%) y se observaron cuatro transversiones G>T potencialmente inducidas por AFB1. Conclusión: El presente análisis proporciona evidencia de que la AFB1 puede tener un papel relevante en la etiología del CHC en México.

https://doi.org/10.21149/13189

13.

Presence of the Pink shrimp Farfantepenaeus brasiliensis (Latreille, 1817) in the coastal lagoons of Uruguay (Crustacea: Decapoda: Penaeoidea)
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Silveira, Santiago

; Fabiano, Graciela

; Pereyra, Inés

; Laporta, Martin

; Scarabino, Fabrizio

; Santana, Orlando

; Márquez, Alejandro

; Errico, Eugenia

Nauplius

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2022, Volume 30 elocation e2022005

Resumo: En | Texto: En | PDF: En

Abstract Farfantepenaeus brasiliensis (Latreille, 1817) and Farfantepenaeus paulensis (Pérez Farfante, 1967), commonly known as pink shrimps, are two commercially important penaeid species caught by artisanal and industrial fisheries in the Southwestern Atlantic Ocean. The currently known southern distribution for F. brasiliensis extends to Rio Grande do Sul (Brazil), while F. paulensis reaches the coastal waters of Buenos Aires (Argentina), although Uruguay represents the southern limit of commercial captures for the latter. In the shrimp season of 2019 (February-May) the presence of F. brasiliensis was recorded together with F. paulensis in the brackish coastal lagoons of Uruguay (34º30’ to 34º50’S). A total of 143 specimens of F. brasiliensis and 152 of F. paulensis were analyzed evaluating morphological, morphometric and genetic differences. The presence of both species was validated based on morphological differences and sequencing the Cytochrome Oxidase I (COI) mitochondrial gene. Significant morphometric differences were found between both species, particularly, the larger rostral length in relation to the carapace and cephalothorax length in F. paulensis compared to F. brasiliensis. To our knowledge, this is the first confirmed record and commercial catch of F. brasiliensis in Uruguayan waters. This southwards expansion could be explained by extending climatic variability events associated with prolonged periods of positive sea surface temperature anomalies in the region. Given the potential commercial relevance of the species, a better understanding of the southward expansion of F. brasiliensis into Uruguayan waters would be helpful in developing efficient management and conservation strategies under a scenario of increasing water temperatures.

https://doi.org/10.1590/2358-2936e2022005

14.

Antibacterial and Antiadhesion Effects of Psidium guajava Fractions on a Multispecies Biofilm Associated with Periodontitis
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Gómez, Pablo Alejandro Millones

; Mendizábal, Margarita Fe Requena

; Poma, Roger Damaso Calla

; Cifuentes, Tania Valentina Rosales

; Quispe, Federico Martin Malpartida

; Torres, Dora Jesús Maurtua

; Amaranto, Reyma Evelyn Bacilio

; Medina, Carlos Alberto Minchón

; Contreras, Lusin Antonio Ponce

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2022, Volume 22 elocation e210080

Resumo: En | Texto: En | PDF: En

Abstract Objective: To assess the antibacterial activity of Psidium guajava fractions and their effects on adhesion of a multispecies biofilm consisting of Streptococcus gordonii, Fusobacterium nucleatum, and Porphyromonas gingivalis in vitro. Material and Methods: Guava leaves were obtained from the mountains of northern Peru, where they grow wild and free of pesticides. The antimicrobial activity of 25 mg/mL petroleum ether, 25 mg/mL dichloromethane and 25 mg/mL methanol fractions of P. guajava was evaluated by measuring inhibition halos, as well as the effect on the adhesion of multispecies biofilms at 4, 7 and 10 days of growth by measuring the optical density. In addition, antimicrobial susceptibility was compared using the Kruskal-Wallis test and its multiple comparison tests, and differences in mean biofilm adhesion between each fraction were assessed by repeated measures analysis and the Tukey multiple comparison test. Results: The rank-based Kruskal-Wallis test highlighted differences in the effects of the fractions on the zone of inhibition for each oral bacterium, including S. gordonii (p=0.000), F. nucleatum (p=0.000), and P. gingivalis (p=0.000), the Tukey test showed that the group treated with 0.12% chlorhexidine exhibited the least amount of adhesion, followed by the group treated with the 1.56 mg/mL methanol fraction. Conclusion: The methanol fraction of P. guajava had an antibacterial effect on S. gordonii and P. gingivalis, and the 1.56 mg/mL methanol fraction decreased biofilm adhesion.

https://doi.org/10.1590/pboci.2022.028

15.

Traumatic dental injuries in 6 to 12 years old schoolchildren: a multicenter cross-sectional study in Mexico
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RUEDA-IBARRA, Vicente

; SCOUGALL-VILCHIS, Rogelio José

; LARA-CARRILLO, Edith

; LUCAS-RINCÓN, Salvador Eduardo

; PATIÑO-MARÍN, Nuria

; MARTÍNEZ-CASTAÑON, Gabriel Alejandro

; ROMERO-MARTÍNEZ, Martin

; MEDINA-SOLIS, Carlo Eduardo

; MAUPOMÉ, Gerardo

Brazilian Oral Research

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2022, Volume 36 elocation e0123

Resumo: En | Texto: En | PDF: En

Abstract The aim of this study was to determine the prevalence of dental trauma in schoolchildren 6 to 12 years of age and associated clinical, sociodemographic, and socioeconomic variables. A cross-sectional study was conducted in 477 children from public elementary schools in four locations in Mexico. The dependent variable was dental trauma, which was dichotomized in 0 = without dental trauma and 1 = with dental trauma. For the statistical analysis, a multivariate binary logistic regression model was generated in Stata. Average age was 9.06±1.94 years and 51.1% were girls. The prevalence of dental trauma was 18.2%. Falls, automobile accidents and sports had the highest number of instances (p < 0.01). In the multivariate model, it was observed that the risk of dental trauma increased with age (OR = 1.28) and among boys (OR = 1.45). Schoolchildren with decreased overjet (OR = 0.38) had lower dental trauma. Father’s age (OR = 1.03) and educational level (OR = 1.78) were associated with dental trauma. Schoolchildren without health insurance (OR = 0.62) presented dental trauma less often. This study provided important information regarding the association of different sociodemographic, socioeconomic and clinical variables with dental trauma in Mexican schoolchildren. Identifying factors associated with dental trauma may support health promotion opportunities to ameliorate the prevalence of dental trauma.

https://doi.org/10.1590/1807-3107bor-2022.vol36.0123

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