Gryguc-Saxanoff Agnieszka
Internal Medicine, Ronald Reagan University of California Los Angeles Medical Center, Los Angeles, USA.
Cureus. 2025 Aug 7;17(8):e89558. doi: 10.7759/cureus.89558. eCollection 2025 Aug.
Although generally considered harmless commensals or beneficial probiotics, species can act as opportunistic pathogens under certain clinical conditions. We describe a case of high-grade bacteremia in a 59-year-old man with a history of aortic root dilation status post Bentall procedure and bioprosthetic aortic valve replacement. The suspected source was recent dental instrumentation. Despite negative imaging for vegetations, the patient was treated empirically for prosthetic valve endocarditis with six weeks of intravenous penicillin. This case reminds clinicians to take bacteremia seriously in the proper clinical context, especially when prosthetic material is present.
尽管通常被认为是无害的共生菌或有益的益生菌，但某些菌种在特定临床条件下可作为机会致病菌。我们描述了一例59岁男性发生的严重菌血症病例，该患者有主动脉根部扩张病史，曾接受Bentall手术及生物人工主动脉瓣置换术。怀疑的感染源是近期的牙科器械操作。尽管影像学检查未发现赘生物，但该患者仍接受了经验性治疗，静脉注射青霉素六周以治疗人工瓣膜心内膜炎。该病例提醒临床医生，在适当的临床背景下要重视菌血症，尤其是存在人工材料时。
