35 results on '"Roncancio, Gustavo"'
Search Results
2. Device-Associated Infections in COVID-19 Patients: Frequency of Resistant Bacteria, Predictors and Mortality in Medellín, Colombia
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Ocampo, Diana Patricia, primary, Echeverri-Toro, Lina María, additional, Jiménez, Judy Natalia, additional, Salazar, Lorena, additional, Vargas, Carlos, additional, Roncancio, Gustavo, additional, Roa, Maria Alejandra, additional, and Vanegas, Johanna Marcela, additional
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- 2024
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3. Farmacocinética y farmacodinamia de los antibióticos en el paciente críticamente enfermo. Segunda parte
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Molina, Francisco, Agudelo, Carlos Andrés, Fonseca, Nelson, Botero, Alicia Hidrón, Jiménez, Carlos Andrés, Ochoa, Álvaro, Restrepo, Carlos Andrés, Trompa, Iván Mauricio, and Roncancio, Gustavo
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- 2016
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4. Manifestaciones cardiacas del dengue. Reporte de una serie de casos durante la epidemia colombiana de 2010
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G., Clara Saldarriaga, Roncancio, Gustavo, González, Nathalia, and Fortich, Fernando
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- 2013
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5. Consenso de uso de antimicrobianos en pacientes críticamente enfermos con falla renal o en riesgo de padecerla
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Cortés, Jorge Alberto, Soto, Rodolfo, Álvarez, Carlos Arturo, Buitrago, Giancarlo, Camargo, Rubén Darío, Cataño, Juan Carlos, Gómez, Carlos Hernando, Otero, Erwin, Reyes, Patricia, Roncancio, Gustavo, and Vargas, Juan Guillermo
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- 2011
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6. Post-antibiotic era in hemodialysis? Two case reports of simultaneous colonization and bacteremia by multidrug-resistant bacteria
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Vanegas,Johanna M., Salazar-Ospina,Lorena, Roncancio,Gustavo A., Builes,Julián, and Jiménez,Judy Natalia
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Carriage ,Bacteremia ,biochemical phenomena, metabolism, and nutrition ,bacterial infections and mycoses ,Antimicrobial resistance - Abstract
The emergence of resistance mechanisms not only limits the therapeutic options for common bacterial infections but also worsens the prognosis in patients who have conditions that increase the risk of bacterial infections. Thus, the effectiveness of important medical advances that seek to improve the quality of life of patients with chronic diseases is threatened. We report the simultaneous colonization and bacteremia by multidrug-resistant bacteria in two hemodialysis patients. The first patient was colonized by carbapenem- and colistin-resistant Klebsiella pneumoniae, carbapenem-resistant Pseudomonas aeruginosa, and methicillin-resistant Staphylococcus aureus (MRSA). The patient had a bacteremia by MRSA, and molecular typing methods confirmed the colonizing isolate was the same strain that caused infection. The second case is of a patient colonized by extended-spectrum beta-lactamases (ESBL)-producing Escherichia coli and carbapenem-resistant Pseudomonas aeruginosa. During the follow-up period, the patient presented three episodes of bacteremia, one of these caused by ESBL-producing E. coli. Molecular methods confirmed colonization by the same clone of ESBL-producing E. coli at two time points, but with a different genetic pattern to the strain isolated from the blood culture. Colonization by multidrug-resistant bacteria allows not only the spread of these microorganisms, but also increases the subsequent risk of infections with limited treatments options. In addition to infection control measures, it is important to establish policies for the prudent use of antibiotics in dialysis units.
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- 2021
7. Ayudas desde la red para el control de la epidemia
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Eduardo Roncancio, Gustavo
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- 2009
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8. Post-antibiotic era in hemodialysis? Two case reports of simultaneous colonization and bacteremia by multidrug-resistant bacteria
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Vanegas, Johanna M., primary, Salazar-Ospina, Lorena, additional, Roncancio, Gustavo A., additional, Builes, Julián, additional, and Jiménez, Judy Natalia, additional
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- 2021
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9. Plan de mejoramiento, para el control administrativo del servicio post venta, en contratos de obra civil para locales de tiendas ARA, Bogotá D.C
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Martínez-Quevedo, Andrés Sebastián, Morales-Roncancio, Gustavo Adolfo, and Cortés-Quintero, Guillermo León
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SERVICIOS POSTVENTA ,REGISTROS ,PRODUCCIÓN ,NORMAS ,PLAN DE MEJORAMIENTO ,CONTROL ADMINISTRATIVO ,CALIDAD ,CONTRATOS DE OBRA CIVIL - Abstract
Trabajo de investigación Este proyecto de investigación tiene como fin generar un plan de mejoramiento para disminuir los servicios posventa que resultan de las malas prácticas constructivas tomando como base una tienda en el barrio Restrepo, los deficientes controles administrativos y técnicos. Y el cual va dirigido a la empresa JMV CONSTRUKTORA S.A.S, para su implementación en las construcción de nuevas tiendas. Especialización Especialista en Gerencia de Obras Civiles INTRODUCCIÓN 1. GENERALIDADES 2. MARCOS DE REFERENCIA 3. METODOLOGÍA 4. PRODUCTOS A ENTREGAR 5. RESULTADOS E IMPACTOS ESPERADOS CONCLUSIONES RECOMENDACIONES BIBLIOGRAFÍA ANEXOS
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- 2021
10. Post-COVID-19 Necrotizing Pneumonia in Patients on Invasive Mechanical Ventilation
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Hidron, Alicia, primary, Quiceno, William, additional, Cardeño, John J., additional, Roncancio, Gustavo, additional, and García, Cristian, additional
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- 2021
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11. Post-antibiotic era in hemodialysis? Two case reports of simultaneous colonization and bacteremia by multidrug-resistant bacteria
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Vanegas, Johanna M., Salazar-Ospina, Lorena, Roncancio, Gustavo A., Builes, Julián, and Jiménez, Judy Natalia
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Carriage ,Transferência ,Bacteremia ,biochemical phenomena, metabolism, and nutrition ,Resistência antimicrobiana ,bacterial infections and mycoses ,Antimicrobial resistance - Abstract
The emergence of resistance mechanisms not only limits the therapeutic options for common bacterial infections but also worsens the prognosis in patients who have conditions that increase the risk of bacterial infections. Thus, the effectiveness of important medical advances that seek to improve the quality of life of patients with chronic diseases is threatened. We report the simultaneous colonization and bacteremia by multidrug-resistant bacteria in two hemodialysis patients. The first patient was colonized by carbapenem- and colistin-resistant Klebsiella pneumoniae, carbapenem-resistant Pseudomonas aeruginosa, and methicillin-resistant Staphylococcus aureus (MRSA). The patient had a bacteremia by MRSA, and molecular typing methods confirmed the colonizing isolate was the same strain that caused infection. The second case is of a patient colonized by extended-spectrum beta-lactamases (ESBL)-producing Escherichia coli and carbapenem-resistant Pseudomonas aeruginosa. During the follow-up period, the patient presented three episodes of bacteremia, one of these caused by ESBL-producing E. coli. Molecular methods confirmed colonization by the same clone of ESBL-producing E. coli at two time points, but with a different genetic pattern to the strain isolated from the blood culture. Colonization by multidrug-resistant bacteria allows not only the spread of these microorganisms, but also increases the subsequent risk of infections with limited treatments options. In addition to infection control measures, it is important to establish policies for the prudent use of antibiotics in dialysis units. RESUMO O surgimento de mecanismos de resistência não apenas limita as opções terapêuticas para infecções bacterianas comuns, mas também piora o prognóstico em indivíduos com condições que aumentam o risco de infecções bacterianas. Assim, a eficácia de importantes avanços médicos que buscam melhorar a qualidade de vida de pacientes com doenças crônicas está ameaçada. Relatamos a colonização e bacteremia simultâneas por bactérias multirresistentes em dois pacientes em hemodiálise. O primeiro paciente foi colonizado por Klebsiella pneumoniae resistente a carbapenem e colistina, Pseudomonas aeruginosa resistente a carbapenem e Staphylococcus aureus resistente a meticilina (MRSA). O paciente apresentou bacteremia por MRSA, e os métodos de tipagem molecular confirmaram que o isolado colonizador era a mesma cepa que estava causando infecção. O segundo caso é de um paciente colonizado por Escherichia coli produtora de beta-lactamases de espectro estendido (ESBL) e Pseudomonas aeruginosa resistente ao carbapenem. Durante o período de seguimento, o paciente apresentou três episódios de bacteremia, um deles causado por E. coli produtora de ESBL. Os métodos moleculares confirmaram a colonização pelo mesmo clone de E. coli produtora de ESBL em dois momentos, mas com um padrão genético diferente da cepa isolada da hemocultura. A colonização por bactérias multirresistentes aumenta o potencial não apenas da disseminação desses microrganismos, mas também do risco subsequente de infecções com opções limitadas de tratamentos. Além das medidas de controle de infecção, é importante estabelecer políticas para o uso prudente de antibióticos nas unidades de diálise.
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- 2020
12. Plan de mejoramiento, para el control administrativo del servicio post venta, en contratos de obra civil para locales de tiendas ARA, Bogotá D.C.
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Cortés-Quintero, Guillermo León, dir., Martínez-Quevedo, Andrés Sebastián, Morales-Roncancio, Gustavo Adolfo, Cortés-Quintero, Guillermo León, dir., Martínez-Quevedo, Andrés Sebastián, and Morales-Roncancio, Gustavo Adolfo
- Abstract
Este proyecto de investigación tiene como fin generar un plan de mejoramiento para disminuir los servicios posventa que resultan de las malas prácticas constructivas tomando como base una tienda en el barrio Restrepo, los deficientes controles administrativos y técnicos. Y el cual va dirigido a la empresa JMV CONSTRUKTORA S.A.S, para su implementación en las construcción de nuevas tiendas.
- Published
- 2021
13. Plan de mejoramiento, para el control administrativo del servicio post venta, en contratos de obra civil para locales de tiendas ARA, Bogotá D.C.
- Author
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Cortés-Quintero, Guillermo León, Martínez-Quevedo, Andrés Sebastián, Morales-Roncancio, Gustavo Adolfo, Cortés-Quintero, Guillermo León, Martínez-Quevedo, Andrés Sebastián, and Morales-Roncancio, Gustavo Adolfo
- Abstract
Este proyecto de investigación tiene como fin generar un plan de mejoramiento para disminuir los servicios posventa que resultan de las malas prácticas constructivas tomando como base una tienda en el barrio Restrepo, los deficientes controles administrativos y técnicos. Y el cual va dirigido a la empresa JMV CONSTRUKTORA S.A.S, para su implementación en las construcción de nuevas tiendas.
- Published
- 2021
14. Trasplante pulmonar por leiomiomatosis metastásica pulmonar benigna : una rara entidad.
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Zapata, Ricardo, primary, Ocampo, Maribel, additional, Saldarriaga, Carlos, additional, Ortega, Héctor, additional, Roncancio, Gustavo, additional, Montoya, Camilo, additional, and Londoño, Alejandro, additional
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- 2020
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15. High frequency of colonization by diverse clones of beta-lactam-resistant Gram-negative bacilli in haemodialysis: different sources of transmission outside the renal unit?
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Vanegas, Johanna M., primary, Salazar-Ospina, Lorena, additional, Montoya-Urrego, Daniela, additional, Builes, Julián, additional, Roncancio, Gustavo E., additional, and Jiménez, J. Natalia, additional
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- 2020
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16. Colombian consensus on the diagnosis, treatment, and prevention of candida Spp. disease in children and adults
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Oñate, José M., Rivas, Pilar, Saavedra, Carlos H., Martínez, Ernesto, Coronell, Wilfrido, López, Eduardo, Berrio, Indira, Álvarez Moreno, Carlos A., Roncancio, Gustavo E., Segur, Janier, Vélez, Juan D., Cortes, Jorge A., Parra Giraldo, Claudia M., Álvarez, Jorge E., Romero, Andrés F., Zuluaga, Iván, Camacho-Moreno, Germán, Pallares, Christian José, and Pallares, Christian José [0000-0002-6093-7845]
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Candidiasis invasora ,Invasive candidiasis ,Fungal diagnostics ,Enfermedad crítica ,Candidemia ,Diagnóstico fúngico ,Antifúngicos ,Consensus guidelines - Abstract
La Candidiasis Invasora (CI) y la candidemia, como su manifestación más frecuente, se ha convertido en la principal causa de micosis oportunista a nivel hospitalario. Este manuscrito realizado por miembros de la Asociación Colombiana de Infectología (ACIN), tuvo como objetivo proporcionar un conjunto de recomendaciones para manejo, seguimiento y prevención de la CI/candidemia y de la infección candidiásica de mucosas, en población adulta, pediátrica y neonatal, en un entorno hospitalario, incluyendo las unidades hemato-oncológicas y unidades de cuidado crítico. Todos los datos obtenidos mediante una búsqueda exhaustiva, fueron revisados y analizados de manera amplia por todos los miembros del grupo, y las recomendaciones emitidas se elaboraron luego de la evaluación de la literatura científica disponible, y el consenso de todos los especialistas involucrados, reconociendo el problema de la emergencia de las infecciones por Candida Spp. y brindando una correcta orientación a los profesionales de la salud sobre el manejo de pacientes con enfermedad candidiásica, de una forma racional y práctica, enfatizando en la evaluación del paciente, estrategias de diagnóstico, profilaxis, tratamiento empírico, tratamiento dirigido y terapia preventiva. Invasive Candidiasis (IC) and candidemia (as its most frequent manifestation) have become the main cause of opportunistic mycosis at hospital settings. This study, made by members of the Colombian Association of Infectious Diseases (ACIN), was aimed at providing a set of recommendations for the management, follow-up and prevention of IC / candidemia and mucous membrane candida infection in adult, pediatric and neonatal patients in a hospital setting, including the hemato-oncological and critical care units. All the data obtained through an exhaustive search were reviewed and analyzed in a comprehensive manner by all the members of the group, and the recommendations issued are being made after a careful review of the scientific literature available and the consensus of all specialists involved; the emergence of Candida Spp. problem is highlighted and a correct orientation to health professionals regarding the management of patients with candidiasis is provided in a rational and practical way, emphasizing patient evaluation, diagnostic strategies, prophylaxis, empirical treatment, directed treatment and preventative therapy
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- 2019
17. Caracterización de los procedimientos para la realización de hemocultivos en pacientes adultos, en instituciones hospitalarias del Área Metropolitana del Valle de Aburrá
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Maldonado*, Natalia, Nagles, Jorge, Robledo, Carlos, Munera, Maria Isabel, Capataz-Tafur, Cesar, Roncancio, Gustavo, Franco, Liliana, Gil, Joana, Arenas, Paola, Gaviria, Marcela, Figueroa-Echeverri, Mónica, and Robledo, Jaime
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Medellin ,Blood Specimen Collection ,contamination ,Bacteriemia ,Manejo de Especímenes ,blood culture ,hemocultivos, contaminación ,Specimen Handling - Abstract
Resumen Objetivo: Caracterizar procedimientos para la toma, análisis, reporte y aseguramiento de la calidad en hemocultivos en pacientes adultos, en instituciones hospitalarias. Material Y método: Estudio descriptivo en 15 Hospitales de Medellín y alrededores. Se empleó un formulario semiestructurado para recolectarla información, se utilizó SPSS(r) para el análisis. Resultados: Todas las instituciones tienen protocolos basados en fuentes de autoridad reconocida; con diferencias importantes en procesos pre-analíticos y postanalíticos. Los Productos más empleados para la antisepsia fueron gluconato declorhexidina al 2-4%(66,7%) Y alcohol isopropílico o etílico al 70% (20,0%),Con discrepancias en los tiempos de acción. El 73,3% emplea guantes estériles y la misma proporción usa sistema abierto (jeringa) para la venopunción. En el 46,6% se toman dos botellas aerobias y una anaerobia por episodio y en 33,3% dos botellas aerobias. El 66,6% lleva un indicador de contaminación, 53,3% de positividad y 26,6% de volumen de sangre. La tasa promedio de hemocultivos contaminados durante el semestre de seguimiento fue 1,61%. Conclusión: Se observa heterogeneidad en los procedimientos, especialmente en fases pre-analítica y post-analítica. En La búsqueda de la excelencia y la seguridad del paciente son necesarios protocolos estandarizados e indicadores para medir y controlar el desempeño de los hemocultivos. Abstract Objective: To characterize the procedures that are performed for the collection, analysis, reporting and quality assurance of blood cultures in adult patients in hospital institutions. Material and Methods: Descriptive study in 15 hospitals of Medellin and its surroundings. A semi-structured collection instrument was used to collect the information provided by each hospital; SPSS(r) was used for the analysis. Results: All Institutions have protocols based o nauthorized sources; there were important differences in the pre-analytic and post-analytic processes. The Products employed for skin antisepsis were2-4% Chlorhexidine gluconate (66.7%)And70% Isopropyl or ethyl alcohol(20.0%), with discrepancies in product action times. 73.3% use sterile gloves and an equal proportion uses an open system (syringe) for venipuncture. Two aerobic and one anaerobic bottles are taken per episode in adult patients in 46.6% of institutions and only two aerobic bottles in 33.3% of them. Indicators of contamination were used by 66.6 % of institutions, of positivity in 53.3% and of blood volume in 26.6%. The average rate of contaminated blood cultures during the follow-up period was 1.61%. Conclusion: Heterogeneity in the procedures was observed especially in the pre-analytic and post-analytical phases. In the pursuit of excellence and patient safety, standardized protocols and the use of indicators to measure and control the performance of blood cultures are needed.
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- 2018
18. Tigeciclina en infecciones intraabdominales complicadas
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Osorio, Johanna, Cataño, Juan Carlos, Jiménez, María Fernanda, Cortés, Jorge Alberto, Martínez-Buitrago, Ernesto, Mora, Leonardo Arévalo, Valderrama, Sandra Liliana, Roncancio, Gustavo, Rodríguez, José Yesid, and Álvarez-Moreno, Carlos Arturo
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Meta-analysis ,Estudios aleatorios controlados ,Randomized controlled trials ,Tigeciclina ,Metaanálisis ,Tigecycline - Abstract
Resumen Objetivo: evaluar la mejor evidencia actual disponible para generar recomendaciones, con respecto a la efectividad y seguridad del uso de tigeciclina en adultos con infección intraabdominal complicada. Materiales y métodos: se realizó una revisión sistemática de la literatura, seleccionando los metaanálisis y experimentos clínicos controlados, los cuales se valora- ron utilizando la herramienta SIGN, con el fin de generar tablas de evidencia según GRADE de los estudios de tigeciclina en la indicación infección intraabdominal complicada, para posteriormente utilizar un proceso Delphi modificado para calificar las diferentes recomendaciones con el fin de generar un consenso. Resultados: se analizaron los resultados basados en la revisión sistemática de la literatura en la que se incluyeron 5 metaanálisis que cumplieron los criterios de selección comparando tigeciclina con otros tratamientos antibióticos en infección intraabdominal complicada; de los cuales, 2711 pacientes recibieron al menos una dosis del antibiótico (1382 tigeciclina y 1389 el comparador) y en los que no se observaron diferencias estadísticamente significativas en los desenlaces evaluados al comparar tigeciclina con otros antibióticos. Conclusión: en pacientes adultos con infección intraabdominal complicada, se considera que el uso de tigeciclina en monoterapia es equivalente en eficacia y seguridad a otras opciones terapéuticas antimicrobianas y no representa un exceso de mortalidad en comparación a otros antibióticos Abstract Objective: To assess current best evidence available to generate recommendations regarding the effectiveness and safety of tigecycline use in adults with complicated intra-abdominal infection (cIAIs). Materials and methods: We conducted a systematic review of published meta-analysis that evaluated tigecycline compared to other antimicrobials and included the indication of cIAI. Quality of the evidence was evaluated by using the SIGN tool (Scottish Intercollegiate Guidelines Network) according to GRADE, and final recommendations were assessed by a modified Delphi Method in order to develop a consensus. Results: Five meta-analyzes met the selection criteria comparing tigecycline with other antibiotic treatments in complicated intra-abdominal infection. Five randomized clinical trials comprised in these meta-analysis included 2711 patients that received at least one dose of antibiotic (1382 tigecycline and 1389 the comparator regimen), We found no statistically significant differences in the evaluated outcomes by comparing tigecycline with other antibiotics, including clinical and microbiologic efficacy, safety and drug related mortality Conclusion: In adult patients with cIAIs, the use of tigecycline as monotherapy is equivalent in effectiveness to other antimicrobial therapeutic options and does not represent an increase in mortality compared to other antibiotics.
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- 2017
19. Colombian consensus on the diagnosis, treatment, and prevention of Candida Spp. disease in children and adults*,+
- Author
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Oñate, José M., primary, Rivas, Pilar, additional, Pallares, Christian, additional, Saavedra, Carlos H., additional, Martínez, Ernesto, additional, Coronell, Wilfrido, additional, López, Eduardo, additional, Berrio, Indira, additional, Álvarez-Moreno, Carlos A., additional, Roncancio, Gustavo E., additional, Segura, Janier, additional, Vélez, Juan D., additional, Cortes, Jorge A., additional, Parra-Giraldo, Claudia M., additional, Álvarez, Jorge E., additional, Romero, Andrés F., additional, Zuluaga, Iván, additional, and Camacho, Germán, additional
- Published
- 2019
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20. Caracterización de los procedimientos para la realización de hemocultivos en pacientes adultos, en instituciones hospitalarias del Área Metropolitana del Valle de Aburrá.
- Author
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Maldonado, Natalia, primary, Robledo, Carlos, additional, Munera, Maria Isabel, additional, Capataz-Tafur, Cesar, additional, Roncancio, Gustavo, additional, Franco, Liliana, additional, Nagles, Jorge, additional, Gil, Joana, additional, Arenas, Paola, additional, Gaviria, Marcela, additional, Figueroa-Echeverri, Mónica, additional, and Robledo, Jaime, additional
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- 2017
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21. Tigeciclina en infecciones intraabdominales complicadas
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Osorio, Johanna, primary, Cataño, Juan Carlos, additional, Jiménez, María Fernanda, additional, Cortés, Jorge Alberto, additional, Martínez-Buitrago, Ernesto, additional, Arévalo Mora, Leonardo, additional, Valderrama, Sandra Liliana, additional, Roncancio, Gustavo, additional, Rodríguez, José Yesid, additional, and Álvarez-Moreno, Carlos Arturo, additional
- Published
- 2017
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22. Acinetobacter baumannii resistente a carbapenémicos causante de osteomielitis e infecciones de la piel y los tejidos blandos en hospitales de Medellín, Colombia
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Vanegas, Johanna Marcela, Higuita, Luis Felipe, Vargas, Carlos Andrés, Cienfuegos, Astrid Vanessa, Rodríguez, Érika Andrea, Roncancio, Gustavo Eduardo, and Jiménez, Judy Natalia
- Subjects
Acinetobacter baumannii ,microbial ,drug resistance ,soft tissue infections ,osteomielitis ,infecciones de los tejidos blandos ,carbapenémicos ,farmacorresistencia microbiana ,osteomyelitis ,carbapenems - Abstract
Introducción. Acinetobacter baumannii es una bacteria oportunista que infecta a pacientes gravemente enfermos, principalmente con neumonía asociada al uso del respirador y bacteriemia. La aparición de resistencia a los carbapenémicos limita las opciones terapéuticas para el manejo de las infecciones ocasionadas por esta bacteria. Objetivo. Describir las características clínicas y moleculares de las infecciones ocasionadas por A. baumannii resistente a carbapenémicos en hospitales de Medellín. Materiales y métodos. Durante dos años se llevó a cabo un estudio descriptivo de corte transversal en cinco hospitales de Medellín. La información clínica provenía de las historias clínicas. La presencia de carbapenemasas se evaluó mediante el test tridimensional y la técnica de reacción en cadena de la polimerasa. La tipificación molecular se hizo con electroforesis en gel de campo pulsado y tipificación de secuencias de múltiples locus. Resultados. Se incluyeron 32 pacientes, 13 de los cuales presentaban infecciones de la piel y los tejidos blandos (n=7, 21,9 %), y osteomielitis (n=6, 18,7 %). Los porcentajes de resistencia fueron superiores a 80 % para todos los antibióticos evaluados, excepto para la colistina y la tigecilina. Las carbapenemasas OXA-23 y OXA-51, así como la secuencia de inserción IS Aba1 , se detectaron en todos los aislamientos. La electroforesis en gel de campo pulsado reveló una gran diversidad genética en los aislamientos, y la tipificación de secuencias de múltiples locus evidenció la circulación de los clones ST229 y ST758 en la ciudad. Conclusión. Contrario a lo reportado previamente, los resultados del estudio revelaron que la osteomielitis y las infecciones de la piel y los tejidos blandos eran los principales cuadros clínicos causados por A. baumannii resistente a carbapenémicos en instituciones de Medellín, y resaltan su importancia como agente etiológico de este tipo de infecciones. Introduction: Acinetobacter baumannii is an opportunistic bacterium which infects seriously ill patients, particularly those with ventilator-associated pneumonia and bacteremia. The emergence of resistance to carbapenem limits the options for the treatment of infections caused by this bacterium. Objective: To describe the clinical and molecular characteristics of infections caused by carbapenem-resistant A. baumannii in Medellín hospitals. Materials and methods: A cross-sectional descriptive study was carried out in five Medellín hospitals over a 2-year period. Clinical information was obtained from medical histories of patients. The presence of carbapenemases was evaluated by three-dimensional test and PCR. Molecular typing was performed using PFGE and MLST. Results: The study included 32 patients, 13 of whom presented skin and soft tissue infections (n=7, 21.9%) or osteomyelitis (n=6, 18.7%). Resistance rates of the isolates exceeded 80% for all the antibiotics evaluated except colistin and tigecycline. Carbapenemases OXA-23 and OXA-51, as well as the insertion sequence IS Aba1 , were detected in all the isolates. PFGE revealed high genetic diversity in the isolates and MLST showed clones ST229 and ST758 are circulating in the city. Conclusion: In contrast to previous reports, the results of the present study showed osteomyelitis and infections of skin and soft tissues to be the main infections caused by carbapenem-resistant A. baumannii in Medellín hospitals and revealed its importance as an etiological agent for this type of infections.
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- 2015
23. A Two-Year Surveillance in Five Colombian Tertiary Care Hospitals Reveals High Frequency of Non-CG258 Clones of Carbapenem-Resistant Klebsiella pneumoniae with Distinct Clinical Characteristics
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Ocampo, Ana M., primary, Chen, Liang, additional, Cienfuegos, Astrid V., additional, Roncancio, Gustavo, additional, Chavda, Kalyan D., additional, Kreiswirth, Barry N., additional, and Jiménez, J. Natalia, additional
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- 2016
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24. Carbapenem-resistant Acinetobacter baumannii causing osteomyelitis and infections of skin and soft tissues in hospitals of Medellín, Colombia
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Vanegas, Johanna Marcela, Higuita, Luis Felipe, Vargas, Carlos Andrés, Cienfuegos, Astrid Vanessa, Rodríguez, Erika Andrea, Roncancio, Gustavo Eduardo, Jiménez, Judy Natalia, Vanegas, Johanna Marcela, Higuita, Luis Felipe, Vargas, Carlos Andrés, Cienfuegos, Astrid Vanessa, Rodríguez, Erika Andrea, Roncancio, Gustavo Eduardo, and Jiménez, Judy Natalia
- Abstract
Introduction: Acinetobacter baumannii is an opportunistic bacterium which infects seriously ill patients, particularly those with ventilator-associated pneumonia and bacteremia. The emergence of resistance to carbapenem limits the options for the treatment of infections caused by this bacterium.Objective: To describe the clinical and molecular characteristics of infections caused by carbapenem-resistant A. baumannii in Medellín hospitals.Materials and methods: A cross-sectional descriptive study was carried out in five Medellín hospitals over a 2-year period. Clinical information was obtained from medical histories of patients. The presence of carbapenemases was evaluated by three-dimensional test and PCR. Molecular typing was performed using PFGE and MLST.Results: The study included 32 patients, 13 of whom presented skin and soft tissue infections (n=7, 21.9%) or osteomyelitis (n=6, 18.7%). Resistance rates of the isolates exceeded 80% for all the antibiotics evaluated except colistin and tigecycline. Carbapenemases OXA-23 and OXA-51, as well as the insertion sequence ISAba1, were detected in all the isolates. PFGE revealed high genetic diversity in the isolates and MLST showed clones ST229 and ST758 are circulating in the city.Conclusion: In contrast to previous reports, the results of the present study showed osteomyelitis and infections of skin and soft tissues to be the main infections caused by carbapenem-resistant A. baumannii in Medellín hospitals and revealed its importance as an etiological agent for this type of infections., Introducción. Acinetobacter baumannii es una bacteria oportunista que infecta a pacientes gravemente enfermos, principalmente con neumonía asociada al uso del respirador y bacteriemia. La aparición de resistencia a los carbapenémicos limita las opciones terapéuticas para el manejo de las infecciones ocasionadas por esta bacteria.Objetivo. Describir las características clínicas y moleculares de las infecciones ocasionadas por A. baumannii resistente a carbapenémicos en hospitales de Medellín.Materiales y métodos. Durante dos años se llevó a cabo un estudio descriptivo de corte transversal en cinco hospitales de Medellín. La información clínica provenía de las historias clínicas. La presencia de carbapenemasas se evaluó mediante el test tridimensional y la técnica de reacción en cadena de la polimerasa. La tipificación molecular se hizo con electroforesis en gel de campo pulsado y tipificación de secuencias de múltiples locus.Resultados. Se incluyeron 32 pacientes, 13 de los cuales presentaban infecciones de la piel y los tejidos blandos (n=7, 21,9 %), y osteomielitis (n=6, 18,7 %). Los porcentajes de resistencia fueron superiores a 80 % para todos los antibióticos evaluados, excepto para la colistina y la tigecilina. Las carbapenemasas OXA-23 y OXA-51, así como la secuencia de inserción ISAba1, se detectaron en todos los aislamientos. La electroforesis en gel de campo pulsado reveló una gran diversidad genética en los aislamientos, y la tipificación de secuencias de múltiples locus evidenció la circulación de los clones ST229 y ST758 en la ciudad.Conclusión. Contrario a lo reportado previamente, los resultados del estudio revelaron que la osteomielitis y las infecciones de la piel y los tejidos blandos eran los principales cuadros clínicos causados por A. baumannii resistente a carbapenémicos en instituciones de Medellín, y resaltan su importancia como agente etiológico de este tipo de infecciones.
- Published
- 2015
25. Acinetobacter baumannii resistente a carbapenémicos causando osteomielitis e infecciones en piel y tejidos blandos en hospitales de Medellín, Colombia
- Author
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Vanegas, Johanna Marcela, primary, Higuita, Luis Felipe, additional, Vargas, Carlos, additional, Cienfuegos, Astrid Vanessa, additional, Rodríguez, Erika, additional, Roncancio, Gustavo Eduardo, additional, and Jiménez, Judy Natalia, additional
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- 2015
- Full Text
- View/download PDF
26. Ayudas desde la red para el control de la epidemia
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Roncancio, Gustavo Eduardo
- Subjects
pandemic ,outbreaks ,pandemia ,estudio de epidemias ,internet ,influenza AH1N1 ,influenza A H1N1 ,infodemiology ,nfodemiología - Abstract
Multitud de portales informáticos aparecen día a día, sobresaturando de información a la comunidad médica y no médica, y que no siempre es confiable y puede encubrir motivos comerciales y propaganda diseminada sin control alguno. Este maremágnum informático en épocas de pandemia puede ser muy peligroso, al llevar a las personas sin formación adecuada conceptos que, al ser mal interpretados o mal difundidos, pueden acabar en ansiedad y confusión. Afortunadamente, de este caos informático surgen aspectos positivos, como es el hecho de aprovechar las indagaciones que sobre síntomas o enfermedades -específicamente, influenza A (H1N1)- realiza la población, en los principales motores de búsqueda de internet (Google o Yahoo), para detectar tempranamente la emergencia de una epidemia local o global. Este método de localización de brotes parece ser de tanta utilidad que, incluso, ha dado origen a una nueva rama del conocimiento: la "infodemiología" que, a través de la "infovigilancia", vigila los eventos en el instante mismo en que van ocurriendo, o incluso antes, mediante el análisis continuo y estructurado de la información disponible en internet. Otro aspecto por resaltar es la calidad y prontitud en la información dispuesta en las páginas web de las instituciones encargadas del control de infecciones en el mundo (Organización Mundial de la Salud) y en varios países de América, lo cual ha permitido seguir la emergencia de la pandemia y actuar para controlarla. A huge number of web sites appear every day, overcrowding the existing body of medical and non-medical information in the net; Sources are not always reliable and usually covers commercial and propaganda purposes. This may arise an special concern regarding the dissemination of mislead concepts and practices on the response to pandemic Flu. But not everything is negative on this specific matter. An example of this is the possibility of early detection of new cases of Flu, due to the easy access to information regarding clinical symptoms that search engines like Google or Yahoo, provide to the general population. A new online-based method of outbreak surveillance, appear to be a useful tool, an it´s been denominated "infodemiology". This method allows a real-time monitoring of cases and predicts the expansion of the disease, through continuous and structured analysis of information available on the internet. Another aspect to remark is the quality and promptness of information available on the web, provided by the institutions responsible for controlling infections in the world (e.g World Health Organization), improving the response to a pandemic threat.
- Published
- 2009
27. Similar Frequencies of Pseudomonas aeruginosa Isolates Producing KPC and VIM Carbapenemases in Diverse Genetic Clones at Tertiary-Care Hospitals in Medellín, Colombia
- Author
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Vanegas, Johanna M., primary, Cienfuegos, Astrid V., additional, Ocampo, Ana M., additional, López, Lucelly, additional, del Corral, Helena, additional, Roncancio, Gustavo, additional, Sierra, Patricia, additional, Echeverri-Toro, Lina, additional, Ospina, Sigifredo, additional, Maldonado, Natalia, additional, Robledo, Carlos, additional, Restrepo, Andrea, additional, and Jiménez, J. Natalia, additional
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- 2014
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28. Association of clinical and demographic factors in invasive candidiasis caused by fluconazole-resistant Candida species: a study in 15 hospitals, Medellín, Colombia 2010–2011
- Author
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Maldonado, Natalia Andrea, primary, Cano, Luz Elena, additional, De Bedout, Catalina, additional, Arbeláez, Carlos Alberto, additional, Roncancio, Gustavo, additional, Tabares, Ángela María, additional, Robledo, Carlos Gonzalo, additional, and Robledo, Jaime, additional
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- 2014
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29. The potential impact of admission insulin levels on patient outcome in the intensive care unit
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De La Rosa, Gisela, primary, Vasquez, Esdras Martin, additional, Quintero, Alvaro Mauricio, additional, Donado, Jorge Hernando, additional, Bedoya, Marisol, additional, Restrepo, Alvaro Humberto, additional, Roncancio, Gustavo, additional, Cadavid, Carlos Alberto, additional, and Jaimes, Fabian Alberto, additional
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- 2013
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30. Bacterias identificadas en la superficie de Musca domestica y su potencial patógenicidad para el humano
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Estrada, Santiago, primary, Ceballos, María Teresa, additional, Vanegas, Claudia, additional, Yepes, Sandra, additional, Estrada, Manuel Santiago, additional, and Roncancio, Gustavo, additional
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- 2012
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31. A Two-Year Surveillance in Five Colombian Tertiary Care Hospitals Reveals High Frequency of Non-CG258 Clones of Carbapenem-Resistant Klebsiella pneumoniaewith Distinct Clinical Characteristics
- Author
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Ocampo, Ana M., Chen, Liang, Cienfuegos, Astrid V., Roncancio, Gustavo, Chavda, Kalyan D., Kreiswirth, Barry N., and Jiménez, J. Natalia
- Abstract
ABSTRACTThe global spread of carbapenem-resistant Klebsiella pneumoniae(CR-Kp) has been largely associated with sequence type 258 (ST258) and its related variants (clonal group 258 [CG258]). Here we describe the molecular epidemiology of CR-Kp from five tertiary care hospitals in Medellín, the second largest city in Colombia. All CR-Kp-infected patients admitted from June 2012 to June 2014 were included (n= 193). Patients' clinical information was obtained from medical records. Carbapenemase KPC, VIM, IMP, NDM, and OXA-48 genes were detected by PCR. A CG258-tonB79cluster-specific real-time PCR (targeting the multilocus sequence type [MLST] tonB79allele), pulsed-field gel electrophoresis (PFGE), and MLST analysis were performed for typing. Remarkably, 62.2% (n= 120) of isolates were from STs unrelated to CG258 (non-CG258). KPC-3 predominated in CG258 isolates (86.3%), while KPC-2 prevailed in non-CG258 isolates (75.5%) (P< 0.001). Multidrug resistance (MDR) frequency was significantly higher in CG258 strains (91.4% versus 56.1%; P< 0.001). ST512 (a single-locus variant of ST258) is the main ST in CG258 (96.3%), and isolates in this group showed closely related pulsotype and similar resistance gene profiles, suggesting the clonal spread of this strain. In contrast, high heterogeneity of STs (34/54), including eight novel STs, was found in non-CG258 isolates. Among non-CG258 isolates, ST14 (13.3%; n= 16) and ST307 (14.2%; n= 17) were the most frequent, and they showed distinct molecular and clinical characteristics in comparison to CG258 isolates. Our results suggest that the dissemination of carbapenem resistance in Medellín is due to heterogeneous K. pneumoniaeclones, likely the result of horizontal transmission of KPC in different unrelated lineages, further highlighting the challenge in CR-Kp infection control and the need for a multifocal intervention.
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- 2015
- Full Text
- View/download PDF
32. Similar Frequencies of Pseudomonas aeruginosaIsolates Producing KPC and VIM Carbapenemases in Diverse Genetic Clones at Tertiary-Care Hospitals in Medellín, Colombia
- Author
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Vanegas, Johanna M., Cienfuegos, Astrid V., Ocampo, Ana M., López, Lucelly, del Corral, Helena, Roncancio, Gustavo, Sierra, Patricia, Echeverri-Toro, Lina, Ospina, Sigifredo, Maldonado, Natalia, Robledo, Carlos, Restrepo, Andrea, and Jiménez, J. Natalia
- Abstract
ABSTRACTCarbapenem-resistant Pseudomonas aeruginosahas become a serious health threat worldwide due to the limited options available for its treatment. Understanding its epidemiology contributes to the control of antibiotic resistance. The aim of this study was to describe the clinical and molecular characteristics of infections caused by carbapenem-resistant P. aeruginosaisolates in five tertiary-care hospitals in Medellín, Colombia. A cross-sectional study was conducted in five tertiary-care hospitals from June 2012 to March 2014. All hospitalized patients infected by carbapenem-resistant P. aeruginosawere included. Clinical information was obtained from medical records. Molecular analyses included PCR for detection of blaVIM, blaIMP, blaNDM, blaOXA-48, and blaKPCgenes plus pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) for molecular typing. A total of 235 patients were enrolled: 91.1% of them were adults (n= 214), 88.1% (n= 207) had prior antibiotic use, and 14.9% (n= 35) had urinary tract infections. The blaVIM-2and blaKPC-2genes were detected in 13.6% (n= 32) and 11.5% (n= 27), respectively, of all isolates. Two isolates harbored both genes simultaneously. For KPC-producing isolates, PFGE revealed closely related strains within each hospital, and sequence types (STs) ST362 and ST235 and two new STs were found by MLST. With PFGE, VIM-producing isolates appeared highly diverse, and MLST revealed ST111 in four hospitals and five new STs. These results show that KPC-producing P. aeruginosais currently disseminating rapidly and occurring at a frequency similar to that of VIM-producing P. aeruginosaisolates (approximately 1:1 ratio) in Medellín, Colombia. Diverse genetic backgrounds among resistant strains suggest an excessive antibiotic pressure resulting in the selection of resistant strains.
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- 2014
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33. Post-antibiotic era in hemodialysis? Two case reports of simultaneous colonization and bacteremia by multidrug-resistant bacteria.
- Author
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Vanegas JM, Salazar-Ospina L, Roncancio GA, Builes J, and Jiménez JN
- Subjects
- Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents therapeutic use, Escherichia coli, Humans, Quality of Life, Renal Dialysis, Bacteremia drug therapy, Methicillin-Resistant Staphylococcus aureus
- Abstract
The emergence of resistance mechanisms not only limits the therapeutic options for common bacterial infections but also worsens the prognosis in patients who have conditions that increase the risk of bacterial infections. Thus, the effectiveness of important medical advances that seek to improve the quality of life of patients with chronic diseases is threatened. We report the simultaneous colonization and bacteremia by multidrug-resistant bacteria in two hemodialysis patients. The first patient was colonized by carbapenem- and colistin-resistant Klebsiella pneumoniae, carbapenem-resistant Pseudomonas aeruginosa, and methicillin-resistant Staphylococcus aureus (MRSA). The patient had a bacteremia by MRSA, and molecular typing methods confirmed the colonizing isolate was the same strain that caused infection. The second case is of a patient colonized by extended-spectrum beta-lactamases (ESBL)-producing Escherichia coli and carbapenem-resistant Pseudomonas aeruginosa. During the follow-up period, the patient presented three episodes of bacteremia, one of these caused by ESBL-producing E. coli. Molecular methods confirmed colonization by the same clone of ESBL-producing E. coli at two time points, but with a different genetic pattern to the strain isolated from the blood culture. Colonization by multidrug-resistant bacteria allows not only the spread of these microorganisms, but also increases the subsequent risk of infections with limited treatments options. In addition to infection control measures, it is important to establish policies for the prudent use of antibiotics in dialysis units.
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- 2021
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34. A Two-Year Surveillance in Five Colombian Tertiary Care Hospitals Reveals High Frequency of Non-CG258 Clones of Carbapenem-Resistant Klebsiella pneumoniae with Distinct Clinical Characteristics.
- Author
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Ocampo AM, Chen L, Cienfuegos AV, Roncancio G, Chavda KD, Kreiswirth BN, and Jiménez JN
- Subjects
- Adult, Aged, Anti-Bacterial Agents pharmacology, Bacterial Proteins metabolism, Carbapenems pharmacology, Clone Cells, Colombia epidemiology, Cross-Sectional Studies, DNA, Bacterial genetics, Electrophoresis, Gel, Pulsed-Field, Epidemiological Monitoring, Female, Gene Expression, Gene Transfer, Horizontal, Humans, Klebsiella Infections drug therapy, Klebsiella Infections microbiology, Klebsiella Infections transmission, Klebsiella pneumoniae classification, Klebsiella pneumoniae drug effects, Klebsiella pneumoniae enzymology, Male, Microbial Sensitivity Tests, Middle Aged, Molecular Epidemiology, Multilocus Sequence Typing, Plasmids chemistry, Plasmids metabolism, Tertiary Care Centers, beta-Lactamases metabolism, Bacterial Proteins genetics, Drug Resistance, Multiple, Bacterial genetics, Klebsiella Infections epidemiology, Klebsiella pneumoniae genetics, Phylogeny, beta-Lactamases genetics
- Abstract
The global spread of carbapenem-resistant Klebsiella pneumoniae (CR-Kp) has been largely associated with sequence type 258 (ST258) and its related variants (clonal group 258 [CG258]). Here we describe the molecular epidemiology of CR-Kp from five tertiary care hospitals in Medellín, the second largest city in Colombia. All CR-Kp-infected patients admitted from June 2012 to June 2014 were included (n = 193). Patients' clinical information was obtained from medical records. Carbapenemase KPC, VIM, IMP, NDM, and OXA-48 genes were detected by PCR. A CG258-tonB79 cluster-specific real-time PCR (targeting the multilocus sequence type [MLST] tonB79 allele), pulsed-field gel electrophoresis (PFGE), and MLST analysis were performed for typing. Remarkably, 62.2% (n = 120) of isolates were from STs unrelated to CG258 (non-CG258). KPC-3 predominated in CG258 isolates (86.3%), while KPC-2 prevailed in non-CG258 isolates (75.5%) (P < 0.001). Multidrug resistance (MDR) frequency was significantly higher in CG258 strains (91.4% versus 56.1%; P < 0.001). ST512 (a single-locus variant of ST258) is the main ST in CG258 (96.3%), and isolates in this group showed closely related pulsotype and similar resistance gene profiles, suggesting the clonal spread of this strain. In contrast, high heterogeneity of STs (34/54), including eight novel STs, was found in non-CG258 isolates. Among non-CG258 isolates, ST14 (13.3%; n = 16) and ST307 (14.2%; n = 17) were the most frequent, and they showed distinct molecular and clinical characteristics in comparison to CG258 isolates. Our results suggest that the dissemination of carbapenem resistance in Medellín is due to heterogeneous K. pneumoniae clones, likely the result of horizontal transmission of KPC in different unrelated lineages, further highlighting the challenge in CR-Kp infection control and the need for a multifocal intervention., (Copyright © 2015, American Society for Microbiology. All Rights Reserved.)
- Published
- 2015
- Full Text
- View/download PDF
35. [Carbapenem-resistant Acinetobacter baumannii causing osteomyelitis and infections of skin and soft tissues in hospitals of Medellín, Colombia].
- Author
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Vanegas JM, Higuita LF, Vargas CA, Cienfuegos AV, Rodríguez ÉA, Roncancio GE, and Jiménez JN
- Subjects
- Acinetobacter Infections microbiology, Acinetobacter baumannii drug effects, Acinetobacter baumannii enzymology, Acinetobacter baumannii genetics, Adolescent, Adult, Aged, Child, Colombia epidemiology, Cross Infection microbiology, Cross-Sectional Studies, Drug Resistance, Multiple, Bacterial, Electrophoresis, Gel, Pulsed-Field, Female, Hospitals, Urban, Humans, Male, Middle Aged, Opportunistic Infections epidemiology, Opportunistic Infections microbiology, Osteomyelitis microbiology, Skin Diseases, Bacterial microbiology, Soft Tissue Infections microbiology, Young Adult, beta-Lactamases genetics, Acinetobacter Infections epidemiology, Acinetobacter baumannii isolation & purification, Cross Infection epidemiology, Osteomyelitis epidemiology, Skin Diseases, Bacterial epidemiology, Soft Tissue Infections epidemiology, beta-Lactam Resistance genetics
- Abstract
Introduction: Acinetobacter baumannii is an opportunistic bacterium which infects seriously ill patients, particularly those with ventilator-associated pneumonia and bacteremia. The emergence of resistance to carbapenem limits the options for the treatment of infections caused by this bacterium., Objective: To describe the clinical and molecular characteristics of infections caused by carbapenem-resistant A. baumannii in Medellín hospitals., Materials and Methods: A cross-sectional descriptive study was carried out in five Medellín hospitals over a 2-year period. Clinical information was obtained from medical histories of patients. The presence of carbapenemases was evaluated by three-dimensional test and PCR. Molecular typing was performed using PFGE and MLST., Results: The study included 32 patients, 13 of whom presented skin and soft tissue infections (n=7, 21.9%) or osteomyelitis (n=6, 18.7%). Resistance rates of the isolates exceeded 80% for all the antibiotics evaluated except colistin and tigecycline. Carbapenemases OXA-23 and OXA-51, as well as the insertion sequence IS Aba1 , were detected in all the isolates. PFGE revealed high genetic diversity in the isolates and MLST showed clones ST229 and ST758 are circulating in the city., Conclusion: In contrast to previous reports, the results of the present study showed osteomyelitis and infections of skin and soft tissues to be the main infections caused by carbapenem-resistant A. baumannii in Medellín hospitals and revealed its importance as an etiological agent for this type of infections.
- Published
- 2015
- Full Text
- View/download PDF
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