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Breast Abscess (breast + abscess)
Selected AbstractsHave the Organisms that Cause Breast Abscess Changed With Time?,,Implications for Appropriate Antibiotic Usage in Primary and Secondary CareTHE BREAST JOURNAL, Issue 4 2010Natalie Dabbas MBBS Abstract:, Many patients with breast abscess are managed in primary care. Knowledge of current trends in the bacteriology is valuable in informing antibiotic choices. This study reviews bacterial cultures of a large series of breast abscesses to determine whether there has been a change in the causative organisms during the era of increasing methicillin-resistant Staphylococcus aureus (MRSA). Analysis was undertaken of all breast abscesses treated in a single unit over 2003 , 2006, including abscess type, bacterial culture, antibiotic sensitivity and resistance patterns. One hundred and ninety cultures were obtained (32.8% lactational abscess, 67.2% nonlactational). 83% yielded organisms. Staphylococcus aureus was the commonest organism isolated (51.3%). Of these, 8.6% were MRSA. Other common organisms included mixed anaerobes (13.7%), and anaerobic cocci (6.3%). Lactational abscesses were significantly more likely to be caused by S. aureus (p < 0.05). Methicillin-resistant Staphylococcus aureus rates were not statistically different between lactational and nonlactational abscess groups. Appropriate antibiotic choices are of great importance in the community management of breast abscess. Ideally, microbial cultures should be obtained to institute targeted therapy but we recommend the continued use of flucloxacillin with or without metronidazole (or amoxicillin-clavulanate as a single preparation) as initial empirical therapy. [source] Rare Species of Actinomyces as Causative Pathogens in Breast AbscessTHE BREAST JOURNAL, Issue 5 2007Kaka Hama Attar MRCS Abstract:, Actinomyces species are commensal flora usually found in the oropharynx, gastrointestinal tract, and female genital tract. Primary actinomycosis of the breast is an unusual condition, where the most commonly isolated pathogen has been Actinomyces israelii. In recent years, other Actinomyces strains have been found associated with breast disease. We present the first reported cases of breast infection caused by the rare species, Actinomyces turicensis and Actinomyces radingae. Both infections displayed chronicity and abscess formation. In the first case, the infection was refractory to recurrent aspirations and initial antibiotic therapy. In the second case, aspiration and prolonged antibiotic therapy was required to overcome the chronic infection. [source] Have the Organisms that Cause Breast Abscess Changed With Time?,,Implications for Appropriate Antibiotic Usage in Primary and Secondary CareTHE BREAST JOURNAL, Issue 4 2010Natalie Dabbas MBBS Abstract:, Many patients with breast abscess are managed in primary care. Knowledge of current trends in the bacteriology is valuable in informing antibiotic choices. This study reviews bacterial cultures of a large series of breast abscesses to determine whether there has been a change in the causative organisms during the era of increasing methicillin-resistant Staphylococcus aureus (MRSA). Analysis was undertaken of all breast abscesses treated in a single unit over 2003 , 2006, including abscess type, bacterial culture, antibiotic sensitivity and resistance patterns. One hundred and ninety cultures were obtained (32.8% lactational abscess, 67.2% nonlactational). 83% yielded organisms. Staphylococcus aureus was the commonest organism isolated (51.3%). Of these, 8.6% were MRSA. Other common organisms included mixed anaerobes (13.7%), and anaerobic cocci (6.3%). Lactational abscesses were significantly more likely to be caused by S. aureus (p < 0.05). Methicillin-resistant Staphylococcus aureus rates were not statistically different between lactational and nonlactational abscess groups. Appropriate antibiotic choices are of great importance in the community management of breast abscess. Ideally, microbial cultures should be obtained to institute targeted therapy but we recommend the continued use of flucloxacillin with or without metronidazole (or amoxicillin-clavulanate as a single preparation) as initial empirical therapy. [source] Staphylococcus lugdunensis: clinical spectrum, antibiotic susceptibility, and phenotypic and genotypic patterns of 39 isolatesCLINICAL MICROBIOLOGY AND INFECTION, Issue 1 2006C. Hellbacher Abstract Staphylococcus lugdunensis is a member of the coagulase-negative staphylococci with the potential to cause clinically significant infections. The spectrum of infections was investigated in 39 isolates of S. lugdunensis from 38 patients. Most (73%) infections were located below the waist, while those above the waist were mainly (5/7) breast abscesses. Most isolates were susceptible to the antibiotics tested, although 15.4% were ,-lactamase-positive and could be identified by the disk-diffusion method for penicillin G. There was very good concordance between the disk-diffusion method and the Etest method for oxacillin resistance. Pulsed-field gel electrophoresis (PFGE) showed that 56% of the isolates belonged to one SmaI pulsotype, while phenotypic analysis by the Phene Plate system identified three main phenotypic groups. Although the S. lugdunensis isolates analysed were obtained from different patients, treated in different wards and hospitals during a 4-year period, there was a low degree of diversity, both genotypically and phenotypically. For this reason, PFGE is not suitable for the analysis of an outbreak situation, and the homogeneity observed may indicate that S. lugdunensis is a genetically conserved species of coagulase-negative Staphylococcus. [source] | ||||||||||