由阿根廷葡萄球菌ST1223引起的椎体骨髓炎伴竖脊脓肿1例。

IF 1.1 4区 医学 Q4 INFECTIOUS DISEASES
Yusuke Watanabe, Naoto Takenoshita, Maki Tsuchiya, Yuri Miura, Kohji Komori, Tetsuo Yamaguchi, Itaru Nakamura, Hidehiro Watanabe, Soichiro Shimizu
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引用次数: 0

摘要

阿根廷葡萄球菌是一种不同于金黄色葡萄球菌的新型细菌。然而,阿根廷葡萄球菌经常被误认为金黄色葡萄球菌,因为它们不能用常规的诊断微生物学方法轻易区分。一名81岁男性因持续腰痛和发热入院。他的血培养株最初被鉴定为甲氧西林敏感金黄色葡萄球菌。增强计算机断层扫描显示竖脊棘脓肿与L5横突相连,腰椎区磁共振成像显示短tau反转恢复时L1和L5的高强度。从脓肿抽吸液中培养上述病原菌。因此,患者被诊断为椎体骨髓炎伴竖棘脓肿。利用基质辅助激光解吸电离飞行时间质谱法和全基因组测序对该菌株进行分析,鉴定菌株为S. argenteus序列型(ST)1223。尽管阿根廷葡萄球菌ST1223主要具有肠道致病性,但我们的病例表明它有可能侵入肌肉骨骼系统。在以往的研究和本病例中,其致病性与金黄色葡萄球菌相似或更强。因此,阿根廷葡萄球菌和金黄色葡萄球菌的临床分化值得进一步研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A case of vertebral osteomyelitis with an erector spinae abscess caused by Staphylococcus argenteus ST1223.

Staphylococcus argenteus is a novel bacterial species distinct from Staphylococcus aureus. Nevertheless, S. argenteus is often misidentified as S. aureus because they cannot be differentiated easily using routine diagnostic microbiology methods. An 81-year-old man was admitted because of persistent lumbar pain and fever. Strains from his blood cultures were initially identified as methicillin-susceptible S. aureus. Enhanced computed tomography revealed an erector spinae abscess connected with the L5 transverse process, and magnetic resonance imaging of the lumbar region showed a high intensity of L1 and L5 on short tau inversion recovery. The abovementioned pathogen was also cultured from the aspiration fluid of the abscess. Therefore, the patient was diagnosed with vertebral osteomyelitis with an erector spinae abscess. We analyzed the detected strain using matrix-assisted laser desorption ionization time-of-flight mass spectrometry and whole-genome sequencing, re-identifying the strain as S. argenteus sequence type (ST)1223. Although S. argenteus ST1223 has mainly enteric pathogenicity, our case suggests its potential to invade the musculoskeletal system. Its pathogenicity was similar to or greater than that of S. aureus in both previous studies and our case. Thus, the clinical differentiation of S. argenteus and S. aureus warrants further investigation.

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来源期刊
CiteScore
4.50
自引率
4.50%
发文量
172
审稿时长
2 months
期刊介绍: Japanese Journal of Infectious Diseases (JJID), an official bimonthly publication of National Institute of Infectious Diseases, Japan, publishes papers dealing with basic research on infectious diseases relevant to humans in the fields of bacteriology, virology, mycology, parasitology, medical entomology, vaccinology, and toxinology. Pathology, immunology, biochemistry, and blood safety related to microbial pathogens are among the fields covered. Sections include: original papers, short communications, epidemiological reports, methods, laboratory and epidemiology communications, letters to the editor, and reviews.
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