Risk factors and clinical characteristics for Stenotrophomonas maltophilia infection in an acute care hospital in Japan: a single-center retrospective study.

IF 1.2 Q4 PHARMACOLOGY & PHARMACY
Michiya Tanuma, Takayuki Sakurai, Hidemasa Nakaminami, Masayo Tanaka
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引用次数: 0

Abstract

Background: Stenotrophomonas maltophilia (S. maltophilia) is a Gram-negative pathogen that causes opportunistic infections. Although the mortality rate among patients with nosocomial infections caused by S. maltophilia is high, the risk factors for infection vary among studies. Moreover, S. maltophilia is highly resistant to several classes of antimicrobial agents. To date, few studies on S. maltophilia have been conducted in Japan, and the details remain unclear. Therefore, the objective of this study was to investigate the risk factors associated with S. maltophilia infection and the antimicrobial susceptibility of S. maltophilia isolates identified in our hospital.

Methods: In this study, we investigated the risk factors associated with S. maltophilia infection and clinical characteristics isolated from patients at the NTT Medical Center Tokyo (Tokyo, Japan). We retrospectively examined the S. maltophilia isolates and the corresponding patients between March 2022 and August 2023.

Results: Fifty-eight patients with S. maltophilia isolated (median age, 80.5 years; age range, 49-100 years; 70.7% male) were enrolled in this study. Twelve cases (20.7%) were placed in the S. maltophilia infection group and 46 cases were placed in the S. maltophilia colonization group. Central venous (CV) catheterization and higher Sequential Organ Failure Assessment (SOFA) scores were identified as risk factors for S. maltophilia infection. In addition, the 30-day mortality rate was significantly higher, and the survival rate was significantly lower in patients with S. maltophilia infection. The antimicrobial susceptibility rates of S. maltophilia were as follows: 28.6% for ceftazidime, 2.4% for cefozopran, 96.6% for levofloxacin, 100% for minocycline, and 98.3% for trimethoprim-sulfamethoxazole.

Conclusions: In actual clinical practice, S. maltophilia was more frequently isolated from sputum. However, most of the cases were colonization, and cases of infection were rare. Early treatment initiation should be considered for S. maltophilia infection in cases where the pathogen is detected from sterile sites, such as blood cultures and pleural fluid or from sputum in cases with a high SOFA score and CV catheter insertion.

日本一家急症医院嗜麦芽窄养单胞菌感染的危险因素和临床特征:一项单中心回顾性研究
背景:嗜麦芽窄养单胞菌是一种引起机会性感染的革兰氏阴性病原体。虽然嗜麦芽葡萄球菌引起的医院感染患者的死亡率很高,但不同研究中感染的危险因素各不相同。此外,嗜麦芽葡萄球菌对几种抗菌剂具有高度耐药性。迄今为止,日本对嗜麦芽链球菌的研究很少,细节尚不清楚。因此,本研究旨在探讨我院嗜麦芽葡萄球菌感染的相关危险因素及嗜麦芽葡萄球菌分离株的抗菌药物敏感性。方法:在本研究中,我们调查了东京NTT医疗中心(东京,日本)分离的嗜麦芽链球菌感染的相关危险因素和临床特征。我们回顾性分析了2022年3月至2023年8月期间嗜麦芽葡萄球菌分离株和相应的患者。结果:分离嗜麦芽链球菌患者58例(中位年龄80.5岁;年龄49-100岁;70.7%为男性)。感染组12例(20.7%),定植组46例(20.7%)。中心静脉(CV)置管和较高的序贯器官衰竭评估(SOFA)评分被确定为嗜麦芽葡萄球菌感染的危险因素。此外,嗜麦芽链球菌感染患者的30天死亡率显著高于嗜麦芽链球菌感染患者,生存率显著低于嗜麦芽链球菌感染患者。嗜麦芽葡萄球菌对头孢他啶的药敏率为28.6%,对头孢opran的药敏率为2.4%,对左氧氟沙星的药敏率为96.6%,对米诺环素的药敏率为100%,对甲氧苄啶-磺胺甲恶唑的药敏率为98.3%。结论:在临床实践中,嗜麦芽链球菌多见于痰中。然而,大多数病例都是定植,感染病例很少。当从无菌部位(如血培养物和胸膜液)或从SOFA评分高并插入CV导管的患者的痰中检测到病原菌时,应考虑对嗜麦芽链球菌感染进行早期治疗。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.80
自引率
0.00%
发文量
29
审稿时长
8 weeks
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