S.epidermidis
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Laura Cristina Aparicio P.Interna Farmacología clínica
INFECCIONES INTRAHOSPITALARIAS ASOCIADAS
A DISPOSITIVOS MÉDICOS
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STAPHYLOCOCCUS EPIDERMIDIS
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Staphylococcus epidermidis
• Patógeno oportunista• Causante de infecciones intrahospitalarias asociadas
al uso de dispositivos médicos• BIOFILM
– Superficie de los dispositivos implantados– Principal mecanismo de virulencia– Frecuentemente resistente a AB
NECESIDAD DE NUEVAS ESTRATEGIAS
New therapeutic strategies against Staphylococcus epidermidis biofilms. Universidade do Minho. Fernanda Isabel Antunes Gomes. 2010
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Características
• Género Staphylococcus– 35 especies
• Cocos gram +• Piel y mucosas• Coagulasa
Formación en racimo de uvas
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Staphylococcus epidermidis
• Inicialmente: Inocua• Patógeno oportunista• Las infecciones se asocian a dispositivos IV (válvulas cardiacas
protésicas, derivaciones, etc), también se dan en prótesis articulaciones, catéteres, y heridas de gran tamaño.
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Formación del Biofilm
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Matriiz-Biofilm
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Cell-cell communication
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• Mayoría de países – 70-80% meticilino-resistentes
• Biofilm– Responsable de resistencia a vancomicina
ESTRATEGIAS DE PREVENCIÓN
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Introducción
• Asamblea Mundial de la Salud en 2002 – Seguridad del paciente como un problema serio
de salud pública– Países en desarrollo– Riesgo de infección intrahospitalaria >
Alianza Mundial para la Seguridad del Paciente
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Actividades principales
• “una atención limpia es una atención más segura”– 2005 y 2006
• “la cirugía segura salva vidas”– 2007-2008– Incluye la importancia de la profilaxis antibiótica como un
marcador de buena atención.
• “la lucha contra la resistencia a los antimicrobianos”. – 2008-2009
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• En este escenario los programas de vigilancia y control epidemiológico de IACS y la implementación y adaptación de guías para su prevención, son estrategias que pueden mejorar la seguridad del paciente y deben ser una prioridad para las instituciones.
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Prevención de IIH asociada a dispositivos intravasculares
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