[Tract infections by the genus Raoultella. Literature review and contribution of 1 case of Raoultella ornithinolytica.].

Objectives:  Emerging urinary infections by rare germs are a public health problem. The objectives of this article are to review urinary tract infections caused by an emerging genus of bacteria called Raoultella and to report a case of asymptomatic urinary tract infection by Raoultella ornithinolytica.

Materials And Methods:  A review of publications on urinary tract infections caused by the genus Raoultella between 2009 and 2018 is carried out and a case of asymptomatic urinary tract infection by Raoultella ornithinolytica is reported. The search of articles in Medline/ Pubmed and Google was performed with the keywords: Raoultella, Raoultella ornithinolytica, urinary tract infection. Twelve variables were studied: year of publication, authors, specialty, type of infection, number of cases, sex, age, immunosuppression, oncological patient, urological instrumentation, urological surgery and neurogenic bladder. Results were analyzed using descriptive statistics. A new case is described.

Results:  24 publications were found with 120 cases of urinary infections of the genus Raoultella between 2009 and 2018, corresponding to Raoultella ornithinolytica 40.8%, Raoultella planticola 28.3%, Raoultella terrigena 30.8% and Raoultella electrica 0%. The series included 43 men (35.8%), 53 women (44.1%) and 24 patients with this data not provided (20%). The minimum age was 14 days, the maximum was 97 years and the average age was 56.6. The types of infection detected were: uncomplicated UTI 94.1%, UTI in newborn 1.6%, acute prostatitis 0.8%, chronic prostatitis 0.8%, giant kidney cyst infection 0.8%, calculous pyelonephritis 0.8% and recurrent cystitis 0.8%.

Conclusions:  Urinary tract infections by species of the genus Raoultella occur in immunocompromised, oncological, instrumented or basic urological patients. The species Raoultella ornithinolytica described in 2011 is an emerging germ in urinary infections. This contribution is the second Spanish publication and twelfth worldwide of urinary infection by Raoultella ornithinolytica.