Staphylococcus aureus Antibiotic Susceptibilities in Infections in an Outpatient Dermatology Office on O'ahu.

Kimberly R Theos, Kory M Johnson, Douglas W Johnson
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Abstract

Staphylococcus aureus is a pathogen that causes skin and soft tissue infections (SSTIs) in dermatology patients. There is an increasing rate of methicillin-resistant S aureus (MRSA) reported in the dermatology literature since 1987. This report profiles the antibiotic susceptibilities of methicillin-sensitive S aureus (MSSA) and MRSA in an outpatient office in Hawai'i. This is a retrospective study done by chart review from 2012 to 2014. Demographics, anatomical site of infection, clinical diagnoses and antimicrobial susceptibility patterns were analyzed and compared. Of the 66 samples, 57% were males and 43% were females. S aureus was more commonly found in impetigo, folliculitis, furuncles and secondarily infected psoriasis and more commonly located on the extremities. MSSA accounted for 73% (48) of the cases and MRSA accounted for 27% (18) of the cases. The antibiotics most effective against all S aureus cultures for outpatients were linezolid (100%), trimethoprim sulfamethoxazole (95%) and tetracyclines (94%). Linezolid (100%), trimethoprim sulfamethoxazole (100%) were most effective against MRSA isolates. Our S aureus and MRSA antimicrobial susceptibility results are similar to the local Hawai'i outpatient antibiogram collected from a large private laboratory in Hawai'i in 2014 and the current Infectious Disease Society of America guidelines. This study may be helpful in guiding empiric treatment of SSTIs suspected to be caused by S aureus.

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奥胡岛门诊皮肤科感染患者的金黄色葡萄球菌抗生素敏感性
金黄色葡萄球菌是引起皮肤病患者皮肤和软组织感染(SSTIs)的病原体。自1987年以来,皮肤科文献报道耐甲氧西林金黄色葡萄球菌(MRSA)的发病率不断上升。本报告描述了在夏威夷的门诊诊所对甲氧西林敏感金黄色葡萄球菌(MSSA)和MRSA的抗生素敏感性。这是一项回顾性研究,采用图表回顾法,时间为2012年至2014年。对人口统计学、感染解剖部位、临床诊断及抗菌药物敏感性进行分析比较。在66个样本中,男性占57%,女性占43%。金黄色葡萄球菌多见于脓疱病、毛囊炎、疖病和继发感染性牛皮癣,多见于四肢。MSSA占73%(48例),MRSA占27%(18例)。门诊患者对所有金黄色葡萄球菌培养物最有效的抗生素是利奈唑胺(100%)、甲氧苄氨苄磺胺甲恶唑(95%)和四环素(94%)。利奈唑胺(100%)、甲氧苄啶磺胺甲恶唑(100%)对MRSA分离株最有效。我们的金黄色葡萄球菌和MRSA抗菌药物敏感性结果与2014年从夏威夷一家大型私人实验室收集的夏威夷当地门诊抗生素谱和美国传染病学会现行指南相似。本研究可能有助于指导疑似金黄色葡萄球菌引起的ssti的经经验治疗。
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