Microbiología de los abscesos mamarios / Microbiology of breast abscesses

Introducción: El tratamiento de los abscesos mamarios se basa en el drenaje y la antibioticoterapia dirigida a las bacterias causantes de la infección. El objetivo de este estudio fue conocer los agentes etiológicos de los abscesos mamarios. Métodos: Se incluyó en el estudio a los pacientes que, entre septiembre de 2015 y enero de 2020, tuvieron un absceso mamario con cultivo positivo. Se consultaron los resultados de los cultivos en la base de datos del laboratorio. Se recogió de las historias clínicas si los pacientes presentaban los siguientes factores de riesgo: lactancia, diabetes o hábito fumador. Se excluyeron los abscesos secundarios a una infección de herida quirúrgica. Resultados: Se incluyeron 60 pacientes: 58 mujeres y 2 varones. Staphylococcus aureus fue el agente más frecuente en mujeres lactantes. Se aislaron bacterias anaerobias en 28 (61%) de los 46 abscesos en pacientes no lactantes. En los no lactantes, la frecuencia de anaerobios en los abscesos fue menor en diabéticos que en el resto (0/5 frente a 26/38; p=0,013). En los no lactantes y no diabéticos, la proporción de abscesos con anaerobios fue mayor en fumadores que en no fumadores (21/24 frente a 5/14; p=0,003). Los cocos grampositivos aerobios fueron los agentes más frecuentes en los diabéticos. Conclusión: Los anaerobios fueron los agentes más frecuentes, seguidos por S.aureus. La etiología de los abscesos mamarios varió con los factores de riesgo estudiados.(AU)

Introduction: Treatment of breast abscesses is based on drainage and antibiotic therapy directed at the bacteria causing the infection. The aim of this study was to know the etiological agents of breast abscesses. Methods: Patients who had a culture-positive breast abscess between September 2015 and January 2020 were included in the study. Culture results were consulted in the laboratory database. It was collected from medical records if the patients presented the following risk factors: breastfeeding, diabetes or smoking. Abscesses secondary to surgical wound infection were excluded. Results: Sixty patients were included: 58 women and 2 men. Staphylococcus aureus was the most frequent agent in lactating women. Anaerobic bacteria were isolated in 28 (61%) of 46 abscesses in non-lactating patients. In non-lactating patients, the frequency of anaerobes in abscesses was lower in diabetics than in the rest (0/5 vs 26/38; P=.013). In non-lactating and non-diabetic patients, the proportion of abscesses with anaerobes was higher in smokers than in non-smokers (21/24 vs 5/14; P=.003). Aerobic gram-positive cocci were the most frequent agents in diabetics. Conclusion: Anaerobes were the most frequent agents, followed by S.aureus. The etiology of breast abscesses varied with the risk factors studied.(AU)

Microbiology of breast abscesses.

INTRODUCTION: Treatment of breast abscesses is based on drainage and antibiotic therapy directed at the bacteria causing the infection. The aim of this study was to know the etiological agents of breast abscesses. METHODS: Patients who had a culture-positive breast abscess between September 2015 and January 2020 were included in the study. Culture results were consulted in the laboratory database. It was collected from medical records if the patients presented the following risk factors: breastfeeding, diabetes or smoking. Abscesses secondary to surgical wound infection were excluded. RESULTS: Sixty patients were included, 58 women and 2 men. Staphylococcus aureus was the most frequent agent in lactating women. Anaerobic bacteria were isolated in 28 (61%) of 46 abscesses in non-lactating patients. In non-lactating patients, the frequency of anaerobes in abscesses was lower in diabetics than in the rest (0/5 vs 26/38; P = .013). In non-lactating and non-diabetic patients, the proportion of abscesses with anaerobes was higher in smokers than in non-smokers (21/24 vs 5/14; P = .003). Aerobic gram-positive cocci were the most frequent agents in diabetics. CONCLUSION: Anaerobes were the most frequent agents, followed by S. aureus. The etiology of breast abscesses varied with the risk factors studied.

Microbiology of breast abscesses. / Microbiología de los abscesos mamarios.

INTRODUCTION: Treatment of breast abscesses is based on drainage and antibiotic therapy directed at the bacteria causing the infection. The aim of this study was to know the etiological agents of breast abscesses. METHODS: Patients who had a culture-positive breast abscess between September 2015 and January 2020 were included in the study. Culture results were consulted in the laboratory database. It was collected from medical records if the patients presented the following risk factors: breastfeeding, diabetes or smoking. Abscesses secondary to surgical wound infection were excluded. RESULTS: Sixty patients were included: 58 women and 2 men. Staphylococcus aureus was the most frequent agent in lactating women. Anaerobic bacteria were isolated in 28 (61%) of 46 abscesses in non-lactating patients. In non-lactating patients, the frequency of anaerobes in abscesses was lower in diabetics than in the rest (0/5 vs 26/38; P=.013). In non-lactating and non-diabetic patients, the proportion of abscesses with anaerobes was higher in smokers than in non-smokers (21/24 vs 5/14; P=.003). Aerobic gram-positive cocci were the most frequent agents in diabetics. CONCLUSION: Anaerobes were the most frequent agents, followed by S.aureus. The etiology of breast abscesses varied with the risk factors studied.

Aumento de Staphylococcus aureus resistente a meticilina y sensible a ciprofloxacino en infecciones osteoarticulares, de piel y tejidos blandos / Increase in methicillin-resistant and ciprofloxacin-susceptible Staphylococcus aureus in osteoarticular, skin and soft tissue infections

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Neumonía neumocócica bacteriémica en el adulto / Bacteremic pneumococcal pneumonia in adults

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