Of these, Aerococcus urinae was isolated in 10 (50%), Aerococcus viridans in 6 (30%), and Aerococcus species (not speciated) in 4 (20%) patients. Seven of 20 (35%) had blood cultures with polymicrobial growth, 3 with coagulase-negative staphylococci, 2 with Enterococcus faecalis and the other 3 with Acinetobacter baumannii, Diphtheroids, and Proteus mirabilis [ Table 1 ].

A. urinae is a rarely reported pathogen, possible due to the difficulties in the identification of the organism. Clinical significance Isolates of this species were originally isolated from the urine of patients with urinary tract infections and were denoted Aerococcus-like organisms. Infections with this bacterium has likely been underestimated.

Aerococcus urinae (A.urinae) is a rare bacterium that can occur in a urinary tract infection, infective endocarditis, blood stream, and spinal disc infections. A. urinae is a gram-positive coccus occurring in tetrads or pairs, similar to the α-hemolytic Streptococci, which is commonly found in the urinary tract in children and elderly people. Aerococcus urinae is a Gram-positive bacterium that can cause invasive infection, including infectious endocarditis (IE), mainly in older men. A. urinae is often misclassiﬁed in routine diagnostic laboratories. Through searches in the laboratory databases we identify 16 iso- All had monomicrobial bacteremia caused by Aerococcus urinae.

Aerococcus urinae bacteremia

In the last one to two decades additionally six species have been included in the genus: A. urinae (1992), Aerococcus christensenii (1999), Aerococcus urinae hominis (2001), A. sanguinicola (2001), Aerococcus urinaeequi (reclassification of Pediococcus urinae equi, 2005), Aerococcus suis (2007), and Aerococcus vaginalis (2014). Aerococcus urinae is a rare organism isolated from urine cultures. We present a case of an 80 year-old male with bladder cancer and multimorbidity who developed A. urinae infection. A. urinae may cause simple and complicated UTIs, bacteremia, and endocarditis in older adults with multimorbidity, chronic urinary retention, or indwelling catheters. Aerococcus urinae is a Gram-positive bacterium that can cause invasive infection, including infectious endocarditis (IE), mainly in older men. A. urinae is often misclassiﬁed in routine diagnostic laboratories.

After the urinae causes urinary tract infections; the other species, A. viridans, a gram- positive coccus considered a contaminant in cultures, has been associated with human Dec 28, 2012 risk for bacteraemia with A. urinae but the prognosis of bacteraemia without IE is favourable. Penicillin is appropriate for treatment of invasive Oct 23, 2019 “Clinical and microbiological features of bacteraemia with Aerococcus urinae.” Clin Microbiol Infect. 2012 Jun;18(6):546-50.

Aerococcus urinae is a Gram-positive alpha-hemolytic bacterium first isolated and identified from urine from patients with UTI ( 8 ). Since its discovery, A. urinae has been isolated from a wide variety of patients, both male and female, ranging from children to the elderly ( 9 ).

to perform IE diagnostics in cases of bacteremia with Aerococcus, Abiotrophia, Gemella, or Granulicatella. 38. group S. salivarius group bacteremia IE p<0,001 för skillnad Nilson, Olaison, 26 Aerococcus urinae- bakteriemi och IE MALDI-TOF identifierar (Senneby et to determine the need for ultrasound cardiography in patients with bacteremia 17 Bakgrund Aerococcus urinae och Aerococcus sanguinicola kan orsaka Cases of endocarditis (n = 7) were high-grade, monomicrobial bacteremia caused by Aerococcus urinae.

Conclusions: Aerococcus urinae is a rare microorganism usually found in the urinary tract, which until recently was thought to be a urinary contaminant lacking clinical significance. It is now being recognized as an emerging cause of UTIs, especially in elderly males with urologic conditions, with the potential to cause bacteremia if not appropriately treated.

2, Karina Mallardo. 2, Antonietta Cantiello. 2, Filomena Fiorito.

Isolates of this genus were originally isolated in 1953 from samples collected in the air and dust of occupied rooms and … Aerococcus urinae is found in the urinary tract and most, but not all, studies implicate A. urinae as a pathogen in urinary tract infections [ 1,2,4,7,8 ]. Importantly, A. urinae has been described as a cause of invasive infections such as infectious endocarditis (IE) [ 9 ], spondylodiscitis [ 10 ], septicaemia [ 11 ], cellulitis [ 7 ] and peritonitis [ 12 ].
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2* 1. Department of Clinical Veterinary Science, Internal Medicine Section, Faculty of Veterinary Sweden stands up for open access – cancels agreement with Elsevier LUBcat LIBRIS Aerococcus urinae is a Gram-positive bacterium which can cause urinary tract infections (UTIs), bacteremia, and infective endocarditis (IE) [1–3].

BMJ Case Reports.
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Aerococcus urinae is a Gram-positive alpha-hemolytic bacterium first isolated and identified from urine from patients with UTI ( 8 ). Since its discovery, A. urinae has been isolated from a wide variety of patients, both male and female, ranging from children to the elderly ( 9 ).

Aerococcus urinae is a Gram-positive bacterium associated with urinary tract infections. Aerococcus urinae is a rare organism infrequently isolated from cultures. Mostly known to cause urinary tract infection, it can cause bacteremia leading to severe urosepsis and infective endocarditis. Embolization is frequently reported with Aerococcus urinae endocarditis (AUE); hence, the presentation is highly variable. Aerococcus urinae is a pathogen that rarely causes severe or fatal infections. We describe four cases of severe A. urinae bloodstream infections. All patients had underlying urologic conditions.