Browsing by Author "Guzmán Durán, Ana María"

Now showing 1 - 14 of 14
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    A simple RNA preparation method for SARS-CoV-2 detection by RT-qPCR
    (2020) Wozniak Banchero, Aniela; Cerda Rojas, Ariel Patricio; Lamig Giannini, Liliana Andrea; Solari Gajardo, Sandra; Guzmán Durán, Ana María; Riveras Hernández, Eleodoro Javier; Ferres Garrido, Marcela Viviana; Gutiérrez Ilabaca, Rodrigo Antonio; García Cañete, Patricia; Ibarra Henriquez, C.; Sebastian, V.; Armijo, G.; Lamig, L.; Miranda, C.; Lagos, M.; Quiroga, T.; Hitschfeld, S.
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    Atypical presentation of pseudomembranous colitis localized in adenomatous polyps
    (2013) Hernández Rocha, Cristián Antonio; Barra Carrasco, Jonathan Eduardo; Guzmán Durán, Ana María; Paredes Sabja, Daniel; Lezcano, Gabriel; Zoroquiain Vélez, José Pablo; Álvarez Lobos, Manuel
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    Características clínicas, diagnósticas y pronósticas de pacientes con neumonía por Pneumocystis jiroveci en individuos infectados por virus de inmunodeficiencia humana e individuos inmunocomprometidos por otra etiología
    (2014) Cerón Araya, Inés María; Rabagliati, Ricardo; Langhaus, Javiera; Silva, Felipe; Guzmán Durán, Ana María; Lagos Lucero, Sonia Marcela
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    Creatinina y su uso para la estimación de la velocidad de filtración glomerular.
    (2018) Huidobro E., Juan Pablo; Tagle, Rodrigo; Guzmán Durán, Ana María
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    Esporas de Clostridium difficile y su relevancia en la persistencia y transmisión de la infección
    (2014) Barra-Carrasco, J.; Hernández Rocha, Cristián Antonio; Ibáñez Lazo, Patricio Fernando; Guzmán Durán, Ana María; Álvarez Lobos, Manuel; Paredes-Sabja, D.
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    Ética y seguridad en la investigación: aprendizajes y desafíos
    (Ediciones UC, 2022) Alarcón Bustos, Mariela; Arenas Morales, Verónica; Arévalo Nally, Constanza; Bonacic Salas, Cristián; Bravo Valenzuela, Paulina; Cabrera Oyarzún, Alejandro; Cáceres Soto, Nataly Edith; Caprile Etchart, Paola Francisca; Díaz Sacco, Alessandra; Gimpel Rivera, Jessica; Guzmán Durán, Ana María; Hilliger Carrasco, Isabel; Ibacache REyes, Felipe Andrés; López González, Dany; Martínez Pereira, Alejandra; Medina Silva, Rafael; Miranda Molina, Carlos Alberto; Muñoz Baeza, Ana; Nogueira Llovet, Amanda Antonia; Pastén González, Pablo Arturo; Pavez Guerrero, Paulina; Ramaciotti Godoy, Clara; Ramos Vergara, Paulina; Roschzttardtz Choucroun, Hannetz France; Troncoso Troncoso, Carlos Patricio; Valera, Luca; Várgas Sepúlveda, Jonathan; Santana López, Alejandra Isabel; Valera, Luca
    ¿Por qué es importante y necesaria la ética de la investigación en Chile? Se convoca aquí a más de setenta académicos y profesionales a presentar sus reflexiones, orientaciones y aprendizajes asociados al resguardo ético y de la seguridad en investigación. Este libro permite una aproximación al quehacer de las universidades chilenas abordando las temáticas que moviluzan a los comités éticocientíficos y ofrece una panorámica de sus aportes en la formación de las buenas prácticas de investigación en las comunidades universitarias. Esta publicación constituye un aporte a la literatura en la gestión de la ética y seguridad en investigación académica desde y para un público hispanohablante que sin duda contribuirá a mejorar estrategias de gestión y desarrollo en estos ámbitos, además de contribuir a la construcción de una sociedad más humana y respetuosa del entorno social, cultural y natural, en el contexto de la generación de conocimientos de alto nivel.
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    Malaria: revisión retrospectiva de 12 casos no autóctonos en Chile
    (2006) Pérez C., Carlos; Baudrand Biggs, René; Labarca L., Jaime; Perret Pérez, Cecilia; Andresen Hernández, Max; Guzmán Durán, Ana María
    Malaria is a protozoan infection caused by four Plasmodia species transmitted by female Anopheles mosquito. Nearly 40% of the world population is at risk of acquiring the disease because of increasing resistance to treatment, climate changes and travels to endemic zones. We report twelve patients with diagnosis of malaria, supported by the identification of parasites on blood smear. All cases had traveled to endemic zones (Peru, Ecuador, Central America, Africa), but only three used chemoprophylaxis. Seven cases were infected with Plasmodium vivax and five cases with P. falciparum. Three of latter required intensive care. All patients were treated with standard drugs according to the severity and Plasmodium specie, with excellent results and no mortality.
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    Origin, genomic diversity and microevolution of the Clostridium difficile B1/NAP1/RT027/ST01 strain in Costa Rica, Chile, Honduras and Mexico
    (2020) Guerrero Araya, E.; Meneses, C.; Castro Nallar, E.; Guzmán Durán, Ana María; Álvarez Lobos, Manuel; Quesada Gómez, C.; Paredes Sabja, D.; Rodríguez, C.
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    Perfil clínico-epidemiológico de las infecciones por virus respiratorios en adultos hospitalizados durante la estación de influenza 2004
    (2006) Rabagliati, Ricardo; Serri, Michel; Perret Perez, Cecilia; Guzmán Durán, Ana María; Azócar, Teresa; Habash, Leila; Espinoza, Claudia; Ferrés Garrido, Marcela Viviana
    Background: During yearly influenza (FLU) season, FLU viruses are well represented among hospitalized patients as in the community. Also, other respiratory viruses could be represented among adult in-patients. Aim: to describe the presence and clinical- epidemiological characteristics of non-FLU respiratory virus infections (respiratory syncytial-RSV, parainfluenza and adenovirus-ADV) among hospitalized adults during FLU season and to compare with FLU-A (IA) or -B (IB) cases. Patients and Methods: Adult patients hospitalized at Hospital Clínico Universidad Católica between May to July 2004 with a respiratory virus infections confirmed by rapid antigen test or direct immunofluorescence of IA, IB (Flu group) or RSV, parainfluenza (1-2-3) and ADV (non-Flu group) were included. Results: 86 cases were identified: 73.5% FLU (48.2% IA, 25.3% IB) and 26.5% non-FLU (15.7% parainfluenza-2; 8.4% RSV; 1.2% parainfluenza-3; 1.2% ADV). No differences were observed in general characteristics and evolution of patients. In FLU-group were more frequently observed myalgia, cough, hospitalization due to febrile syndrome, higher values of C-reactive protein and band leukocytes count (p < 0.05). Conclusions: During 2004 FLU season a 26.5 % of respiratory viral infection were due to non-FLU viruses among adult hospitalized in our centre. The difficulty to difference FLU vs. non-FLU infections, suggest that it is necessary to include other respiratory virus in the viral etiological diagnosis, even in FLU season.
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    Predominance of Clostridium difficile ribotypes 012, 027 and 046 in a university hospital in Chile, 2012
    (2016) Plaza Garrido, Á.; Barra Carrasco, Jonathan Eduardo; Macías, J. H.; Carman, R.; Fawley, W. N.; Wilcox, M. H.; Hernández Rocha, Cristián Antonio; Guzmán Durán, Ana María; Álvarez Lobos, Manuel; Paredes Sabja, D.
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    Prospective comparison of a commercial multiplex real-time polymerase chain reaction and an enzyme immunoassay with toxigenic culture in the diagnosis of Clostridium difficile-associated infections
    (2013) Hernández Rocha, Cristián Antonio; Barra Carrasco, Jonathan Eduardo; Álvarez Lobos, Manuel; Paredes Sabja, D.; Guzmán Durán, Ana María
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    Pseudo-outbreak of Ochrobactrum anthropi Bacteremia related to cross-contamination from erythrocyte sedimentation tubes
    (2007) Labarca L., Jaime; García Cañete, Patricia; Balcells Marty, María Elvira; Cerda Soto, Gabriela de la; Salinas, Ana María; Román, Juan Carlos; Guzmán Durán, Ana María; Pérez, Carlos
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    Reconocimiento de influenza-A como etiología de síndrome febril e insuficiencia respiratoria en adultos hospitalizados durante brote en la comunidad
    (2004) Rabagliati Borie, Ricardo Miguel; Benítez Gómez, Rosana; Fernández Montenegro, María Alicia; Gaete Gutiérrez, Pablo Antonio; Guzmán Durán, Ana María; García Cañete, Patricia; Ferrés, Marcela; Pérez Cortés, Carlos Miguel; Labarca L., Jaime
    Background: Influenza-A (IA) occurs every winter, is mostly observed among outpatients. Aim: To describe the clinical and epidemiological characteristics of cases that required hospital admission during an outbreak in Chile in 1999. Patients and methods: Adults subjects, with Influenza A confirmed by antigen detection test, hospitalized in the clinical hospital of the «Hospital Clínico de la Universidad Católica de Chile» between May and June, with fever or respiratory symptoms were studied. A special record was designed to register clinical, microbiological and therapeutic data. Results: Fifty five cases, 26 males, aged 15 to 91 years, were studied. Eighty four percent had chronic concomitant diseases and 9.1% were immunosuppressed. Clinical findings were fever in 87.3%, asthenia in 83.6%, cough in 93.6%, abnormal pulmonary signs in 69%, an elevated C-reactive protein (mean value of 11.6 ± 7.1 mg/dL) and acute respiratory insufficiency in 54.5%. Cases were isolated in cohort or individual rooms and 38.2% were admitted to intensive or intermediate care units. Amantadine was prescribed to 52 patients and was well tolerated. Thirty three percent of cases developed pneumonia. These subjects were older, had more dyspnea and respiratory insufficiency than patients without pneumonia. Conclusions: IA should be borne in mind when dealing with hospitalized adults, during epidemic outbreaks in the community. The clinical picture can resemble a serious bacterial infection. An early diagnosis allows the use of specific treatments, to decrease the risk of nosocomial spread and to avoid unnecessary use of antibiotics.
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    Rendimiento de índices pronósticos en infección asociada a Clostridium difficile grave. Análisis retrospectivo en un hospital universitario
    (2014) Hernández Rocha, Cristián Antonio; Tejos Sufan, Rodrigo; Plaza Garrido, Ángela; Barra Carrasco, Jonathan Eduardo; Agüero Luengo, Carlos; Inostroza Levy, Gonzalo; Ibáñez Lazo, Patricio Fernando; Guzmán Durán, Ana María; Álvarez Lobos, Manuel; Molina Pezoa, María Elena; Paredes Sabja, Daniel