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CTX-M-9 group ESBL-producing Raoultella planticola nosocomial infection: first report from sub-Saharan Africa.
Annals of Clinical Microbiology and Antimicrobials ( IF 4.6 ) Pub Date : 2020-08-17 , DOI: 10.1186/s12941-020-00380-0
Tafese Beyene Tufa 1, 2, 3 , Andre Fuchs 2, 3 , Torsten Feldt 2, 3 , Desalegn Tadesse Galata 1 , Colin R Mackenzie 4 , Klaus Pfeffer 4 , Dieter Häussinger 2, 3
Affiliation  

Raoultella are Gram-negative rod-shaped aerobic bacteria which grow in water and soil. They mostly cause nosocomial infections associated with surgical procedures. This case study is the first report of a Raoultella infection in Africa. Case presentation We report a case of a surgical site infection (SSI) caused by Raoultella planticola which developed after caesarean section (CS) and surgery for secondary small bowel obstruction. The patient became febrile with neutrophilia (19,157/µL) 4 days after laparotomy and started to develop clinical signs of a SSI on the 8th day after laparotomy. The patient continued to be febrile and became critically ill despite empirical treatment with ceftriaxone and vancomycin. Raoultella species with extended antimicrobial resistance (AMR) carrying the CTX-M-9 β-lactamase was isolated from the wound discharge. Considering the antimicrobial susceptibility test, ceftriaxone was replaced by ceftazidime. The patient recovered and could be discharged on day 29 after CS. Raoultella planticola was isolated from an infected surgical site after repeated abdominal surgery. Due to the infection the patient’s stay in the hospital was prolonged for a total of 4 weeks. It is noted that patients undergoing surgical and prolonged inpatient treatment are at risk for infections caused by Raoultella. The development of a SSI caused by Raoultella planticola with extended AMR has to be assumed to be a consequence of ineffective antibiotic utilization. The presented case advices that rare bacteria as Raoultella should be considered as potential cause of nosocomial SSI with challenging treatment due to high levels of AMR.

中文翻译:

CTX-M-9组产生ESBL的植物毛刀菌医院内感染:撒哈拉以南非洲的首次报道。

Raoultella是革兰氏阴性杆状需氧细菌,在水中和土壤中生长。它们主要引起与外科手术有关的医院感染。该案例研究是非洲劳氏菌感染的首次报道。病例介绍我们报告了一例由剖腹产(CS)和继发性小肠梗阻手术引起的植物性劳氏菌引起的手术部位感染(SSI)。该患者在剖腹手术后4天开始出现嗜中性白血球热(19,157 / µL),并在剖腹手术后第8天开始出现SSI的临床体征。尽管使用头孢曲松和万古霉素进行了经验性治疗,但该患者继续发热,并病危。从伤口排出物中分离出带有CTX-M-9β-内酰胺酶的具有扩展抗药性(AMR)的劳氏菌。考虑到抗菌药敏试验,头孢曲松由头孢他啶代替。患者康复,可以在CS后第29天出院。反复进行腹部手术后,从感染的手术部位分离到植物拉乌尔氏菌。由于感染,患者在医院的逗留时间延长了总共4周。应当指出,接受外科手术和长期住院治疗的患者有感染拉乌尔氏菌引起的风险。必须假定由植物拉乌尔球菌和扩展的AMR引起的SSI发生是无效抗生素利用的结果。提出的病例建议,由于高水平的AMR,应将稀有细菌如劳氏菌考虑为医院SSI的潜在病因,且治疗难度较大。头孢曲松被头孢他啶代替。患者康复,可以在CS后第29天出院。反复进行腹部手术后,从感染的手术部位分离到植物拉乌尔氏菌。由于感染,患者在医院的逗留时间延长了总共4周。应当指出,接受外科手术和长期住院治疗的患者有感染拉乌尔氏菌引起的风险。必须假定由植物拉乌尔球菌和扩展的AMR引起的SSI发生是无效抗生素利用的结果。提出的病例建议,由于高水平的AMR,应将稀有细菌如劳氏菌考虑为医院SSI的潜在病因,且治疗难度较大。头孢曲松被头孢他啶代替。患者康复,可在CS后第29天出院。反复进行腹部手术后,从感染的手术部位分离到植物拉乌尔氏菌。由于感染,患者在医院的逗留时间总共延长了4周。应当指出,接受外科手术和长期住院治疗的患者有感染拉乌尔氏菌引起的风险。必须假定由植物拉乌尔球菌和扩展的AMR引起的SSI发生是无效抗生素利用的结果。提出的病例建议,由于高水平的AMR,应将稀有细菌如劳氏菌考虑为医院SSI的潜在病因,且治疗难度较大。反复进行腹部手术后,从感染的手术部位分离到植物拉乌尔氏菌。由于感染,患者在医院的逗留时间延长了总共4周。应当指出,接受外科手术和长期住院治疗的患者有感染拉乌尔氏菌引起的风险。必须假定由植物拉乌尔球菌和扩展的AMR引起的SSI发生是无效抗生素利用的结果。提出的病例建议,由于高水平的AMR,应将稀有细菌如劳氏菌考虑为医院SSI的潜在病因,且治疗难度较大。反复进行腹部手术后,从感染的手术部位分离到植物拉乌尔氏菌。由于感染,患者在医院的逗留时间延长了总共4周。应当指出,接受外科手术和长期住院治疗的患者有感染拉乌尔氏菌引起的风险。必须假定由植物拉乌尔球菌和扩展的AMR引起的SSI发生是无效抗生素利用的结果。提出的病例建议,由于高水平的AMR,应将稀有细菌如劳氏菌考虑为医院SSI的潜在病因,且治疗难度较大。应当指出,接受外科手术和长期住院治疗的患者有感染拉乌尔氏菌引起的风险。必须假定由植物拉乌尔球菌和扩展的AMR引起的SSI发生是无效抗生素利用的结果。提出的病例建议,由于高水平的AMR,应将稀有细菌如劳氏菌考虑为医院SSI的潜在病因,且治疗难度较大。应当指出,接受外科手术和长期住院治疗的患者有感染拉乌尔氏菌引起的风险。必须假定由植物拉乌尔球菌和扩展的AMR引起的SSI发生是无效抗生素利用的结果。提出的病例建议,由于高水平的AMR,应将稀有细菌如劳氏菌考虑为医院SSI的潜在病因,且治疗难度较大。
更新日期:2020-08-17
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