Ítem
Acceso Abierto
Biopelículas bacterianas de tubo-orotraqueal y su sensibilidad antimicrobiana en dos ucis en Bogotá, Colombia
dc.contributor.advisor | Baldion Elorza, Ana Margarita | |
dc.contributor.advisor | Buitrago, Andres Felipe | |
dc.creator | Yepes Velasco, Andres Felipe | |
dc.creator.degree | Especialista en Medicina Crítica y Cuidado Intensivo | spa |
dc.creator.degreetype | Full time | spa |
dc.date.accessioned | 2020-02-13T22:01:01Z | |
dc.date.available | 2020-02-13T22:01:01Z | |
dc.date.created | 2020-01-27 | |
dc.description | El uso de antibióticos y de dispositivos médicos invasivos contribuye a la aparición de microorganismos resistentes a medicamentos, lo cual dificultan el tratamiento. La neumonía nosocomial, especialmente aquella asociada a ventilación mecánica, es una de las infecciones asociadas a la atención en salud (IAAS) más frecuente en la unidad de cuidado intensivo (UCI). Las IAAS están ligadas a la hospitalización principalmente en UCIs, y son causa importante de morbilidad y mortalidad. La microbiota de las vías aéreas en pacientes que requieren ventilación mecánica es un grave problema debido a que colonizan y forman biopelículas rápidamente sobre los tubos orotraqueales, donde persisten y pueden contribuir al deterioro del paciente. Dichas comunidades están compuestas por microorganismos de la flora normal del paciente así como de contaminación cruzada con la microbiota del ambiente hospitalario. Las bacterias más prevalentes se encuentran Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae, Acinetobacter baumanii entre otros. Previo estudio de los mecanismos de resistencia en estado planctónico y en biopelícula de K. pneumoniae a partir de aislados nativos de pacientes colombianos, conscientes de la importancia y la necesidad de generar estrategias de prevención y tratamientos alternativos o nuevos específicamente en las infecciones generadas alrededor de los dispositivos médicos de uso común a nivel hospitalario, en este proyecto se pretende generar conocimiento nuevo y brindar información útil para el desenlace y pronóstico de los pacientes de las comunidades microbianas en biopelícula sobre el tubo orotraqueal en dos UCIs Médico-Quirúrgicas, un tema que si bien ha sido estudiado a nivel mundial, en Colombia sería uno de los pioneros específicamente en el área de biopelículas sobre dispositivos médicos invasivos usados de rutina a nivel hospitalario. En este estudio de corte prospectiva se realizó la caracterización de las comunidades microbianas de las biopeliculas formadas sobre el tubo endotraqueal obtenidos por cultivo y por secuenciación de la región V3-V4 del gen 16S rRNA, en los pacientes de 2 unidades de cuidado intensivo en Bogotá- Colombia en el periodo comprendido entre diciembre de 2016 y diciembre de 2017, recolectándose 116 muestras de tuos orotraqueales, Aproximadamente la mitad de las muestras correspondieron a microorganismos pertencientes al grupo ESKAPE, K.pneumonia fue el microorganismo mas prevalente en las dos unidades de cuidado intensivo en la evaluación de formación de biopelicula y asi mismo es el de mayor capacidad de formación de la misma seguido por P. aeruginosa. Se realizó la evaluación de la concentración minima de erradicación en biopelicula (MBEC) en 4 cepas ( 2 de cada UCI) y en estado plantónico fueron sensibles a carbapenemico sin embargo en estado de biopelícula aumentan su resistencia hasta 8 veces . Los hallazgos aquí presentados generan un base de información sobe la microbiota en pacientes en UCI que aporta a la comunidad científica y a estudios futuros orientados a generar mejoras en la terapia antibiótica que pueda beneficiar la calidad de vida del paciente y reducir la carga de la enfermedad para el sistema de salud. | spa |
dc.description.abstract | The use of antibiotics and invasive medical devices contributes to the emergence of drug-resistant microorganisms, making treatment difficult. Nosocomial pneumonia, especially that associated with mechanical ventilation, is one of the most frequent health care associated infections (HAI) in the intensive care unit (ICU). HAIs are linked to hospitalization mainly in ICUs, and are an important cause of morbidity and mortality. The microbiota of the airways in patients requiring mechanical ventilation is a serious problem because they rapidly colonize and form biofilms on the orotracheal tubes, where they persist and can contribute to the deterioration of the patient. These communities are composed of microorganisms from the normal flora of the patient as well as cross-contamination with the microbiota of the hospital environment. The most prevalent bacteria are Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae, Acinetobacter baumanii among others. Previous study of resistance mechanisms in planktonic state and in biofilm of K. pneumoniae from native isolates of Colombian patients, aware of the importance and the need to generate prevention strategies and alternative or new treatments specifically in infections generated around medical devices commonly used at the hospital level, this project aims to generate new knowledge and provide useful information for the outcome and prognosis of patients from microbial communities in biofilm on the orotracheal tube in two Medical-Surgical ICUs, a topic that Although it has been studied worldwide, in Colombia it would be one of the pioneers specifically in the area of biofilms on invasive medical devices used routinely at the hospital level. In this prospective study, the characterization of the microbial communities of the biofilms formed on the endotracheal tube obtained by culture and by sequencing the V3-V4 region of the 16S rRNA gene was carried out in patients from 2 intensive care units in Bogotá. - Colombia in the period between December 2016 and December 2017, collecting 116 samples of orotracheal tuos, Approximately half of the samples corresponded to microorganisms belonging to the ESKAPE group, K. pneumonia was the most prevalent microorganism in the two care units intensive in the evaluation of biofilm formation and is also the one with the highest capacity for biofilm formation, followed by P. aeruginosa. The evaluation of the minimum biofilm eradication concentration (MBEC) was carried out in 4 strains (2 from each ICU) and in the plantonic state they were sensitive to carbapenemic, however in the biofilm state they increase their resistance up to 8 times. The findings presented here generate an information base on the microbiota in ICU patients that contributes to the scientific community and to future studies aimed at generating improvements in antibiotic therapy that can benefit the patient`s quality of life and reduce the burden of the disease for the health system. | eng |
dc.description.sponsorship | Corpogen - Colciencias | spa |
dc.format.mimetype | application/pdf | |
dc.identifier.doi | https://doi.org/10.48713/10336_20873 | |
dc.identifier.uri | https://repository.urosario.edu.co/handle/10336/20873 | |
dc.language.iso | spa | spa |
dc.publisher | Universidad del Rosario | spa |
dc.publisher.department | Facultad de Medicina | spa |
dc.publisher.program | Especialización en Medicina Crítica y Cuidado Intensivo | spa |
dc.rights | Atribución-SinDerivadas 2.5 Colombia | spa |
dc.rights.accesRights | info:eu-repo/semantics/openAccess | |
dc.rights.acceso | Abierto (Texto Completo) | spa |
dc.rights.licencia | EL AUTOR, manifiesta que la obra objeto de la presente autorización es original y la realizó sin violar o usurpar derechos de autor de terceros, por lo tanto la obra es de exclusiva autoría y tiene la titularidad sobre la misma. PARGRAFO: En caso de presentarse cualquier reclamación o acción por parte de un tercero en cuanto a los derechos de autor sobre la obra en cuestión, EL AUTOR, asumirá toda la responsabilidad, y saldrá en defensa de los derechos aquí autorizados; para todos los efectos la universidad actúa como un tercero de buena fe. EL AUTOR, autoriza a LA UNIVERSIDAD DEL ROSARIO, para que en los términos establecidos en la Ley 23 de 1982, Ley 44 de 1993, Decisión andina 351 de 1993, Decreto 460 de 1995 y demás normas generales sobre la materia, utilice y use la obra objeto de la presente autorización. -------------------------------------- POLITICA DE TRATAMIENTO DE DATOS PERSONALES. Declaro que autorizo previa y de forma informada el tratamiento de mis datos personales por parte de LA UNIVERSIDAD DEL ROSARIO para fines académicos y en aplicación de convenios con terceros o servicios conexos con actividades propias de la academia, con estricto cumplimiento de los principios de ley. Para el correcto ejercicio de mi derecho de habeas data cuento con la cuenta de correo habeasdata@urosario.edu.co, donde previa identificación podré solicitar la consulta, corrección y supresión de mis datos. | spa |
dc.rights.uri | http://creativecommons.org/licenses/by-nd/2.5/co/ | |
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dc.source.instname | instname:Universidad del Rosario | spa |
dc.source.reponame | reponame:Repositorio Institucional EdocUR | spa |
dc.subject | Biofilm | spa |
dc.subject | Cuidado Intensivo | spa |
dc.subject | Neumonia asociada a la ventilacion | spa |
dc.subject | Microbioma | spa |
dc.subject.ddc | Incidencia & prevención de la enfermedad | spa |
dc.subject.keyword | Biofilm | spa |
dc.subject.keyword | Cuidado intensivo | spa |
dc.subject.keyword | Neumonia asociada a la ventilacion | spa |
dc.subject.keyword | Microbioma | spa |
dc.subject.lemb | Microbiología médica | spa |
dc.subject.lemb | Infecciones nosocomiales-investigaciones | spa |
dc.subject.lemb | Medicina-Aparatos e instrumentos | spa |
dc.subject.lemb | Respiración artificial-Análisis microbiológico | spa |
dc.subject.lemb | Biofilms-Análisis de laboratorio | spa |
dc.subject.lemb | Enfermedades iatrogénicas | spa |
dc.subject.lemb | Unidades de cuidados intensivos-Agentes infecciosos | spa |
dc.title | Biopelículas bacterianas de tubo-orotraqueal y su sensibilidad antimicrobiana en dos ucis en Bogotá, Colombia | spa |
dc.title.TranslatedTitle | Bacterial tube-orotracheal biofilms and their antimicrobial sensitivity in two ucis in Bogotá, Colombia | eng |
dc.type | masterThesis | eng |
dc.type.document | Trabajo de grado | spa |
dc.type.hasVersion | info:eu-repo/semantics/acceptedVersion | |
dc.type.spa | Trabajo de grado | spa |
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