Abdominal Aortic Graft Infection Caused by stG485.0, ST29 Streptococcus dysgalactiae subsp. equisimilis.

Abdominal Aortic Graft Infection Caused by stG485.0, ST29 Streptococcus dysgalactiae subsp. equisimilis. Jpn J Infect Dis. 2019 Sep 30;: Authors: Kakuta R, Shimizu T, Goto H, Endo S, Kanamori H, Ohta N, Nakano R, Yano H, Katori Y, Kaku M Abstract In recent years, the prevalence of invasive Streptococcus dysgalactiae subsp. equisimilis (SDSE) infections has increased gradually throughout the world, including Japan. Here, we report the case of an abdominal aortic graft infection caused by stG485.0, ST29 SDSE in an elderly patient with diabetes. An 86-year-old man who had undergone an abdominal aortic aneurysm (not infected) repair with a bifurcated graft 10 years ago was referred to our hospital after being suspected of having abdominal aortic graft infection through computed tomography. He underwent surgery, and the pus developed between the aneurysm and the graft was drained. Although blood cultures were negative, the surgical specimen culture was positive for β-hemolytic group G streptococci, which was subsequently identified as SDSE using 16S ribosomal RNA sequencing. Genetic relationships deduced from emm and multilocus sequence typing revealed the isolate to be type stG485.0 and ST29, respectively. Although aortic aneurysm graft infection has a poor prognosis, we successfully rescued the patient through prompt surgery and identification of the causative organism. This case indicates that in the vascular surgery field, attention ...
Source: Japanese Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: Jpn J Infect Dis Source Type: research