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Meštrović T, Neuberg M, Sviben M, Ribić R, Drenjančević D, Škrlec I, Talapko J, Kozina G, Profozić Z. Corynebacterium glucuronolyticum in men with and without urethritis syndrome: An underrecognized pathogen or a bona fide commensal? Infect Dis Now 2022; 52:441-446. [PMID: 36030041 DOI: 10.1016/j.idnow.2022.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/27/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND By analysing the largest collection of Corynebacterium glucuronolyticum (C. glucuronolyticum) isolates from a single centre thus far, we aimed to appraise a potential causal link between an infrequently isolated species and the urethritis syndrome in men. METHODS A total of 1055 Caucasian male individuals with or without urethritis syndrome were included in this single-centre case-control study. Group-wise comparisons were pursued by analysing sociodemographic, behavioural and microbiological specificities between the two groups. C. glucuronolyticum isolates from urethral specimens were identified using the analytical profile index biotyping system (API Coryne) and additionally confirmed by MALDI-TOF mass-spectrometry, with subsequent determination of their antimicrobial sensitivity profiles. Statistical significance was set at p < 0.05 (two-tailed). RESULTS C. glucuronolyticum was isolated in 5.08% of study participants with urethritis syndrome and 3.60% of those without it (p = 0.303). In the urethritis group, the species was more frequently found as a sole isolate (p = 0.041) and after prior infection with Chlamydia trachomatis (p = 0.025). The most frequent presentation of urethritis included a clear discharge in small or moderate amounts, without any pathognomonic findings. The resistance rates were 62.22% for clindamycin, 42.22% for tetracycline and 26.67% for ciprofloxacin. CONCLUSIONS Our study provides major insights on the relevance of urethral C. glucuronolyticum in non-gonococcal urethritis, with significant implications for further aetiological research and management approaches.
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Affiliation(s)
- T Meštrović
- Department of Health Metrics Sciences, University of Washington School of Medicine, Seattle, Washington, USA; University Centre Varaždin, University North, Varaždin, Croatia; Clinical Microbiology and Parasitology Unit, Dr. Zora Profozić Polyclinic, Zagreb, Croatia.
| | - M Neuberg
- University Centre Varaždin, University North, Varaždin, Croatia
| | - M Sviben
- Microbiology Service, Croatian National Institute of Public Health, Zagreb, Croatia; Medical Microbiology Department, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - R Ribić
- University Centre Varaždin, University North, Varaždin, Croatia
| | - D Drenjančević
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; University Hospital Centre Osijek, Osijek, Croatia
| | - I Škrlec
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - J Talapko
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - G Kozina
- University Centre Varaždin, University North, Varaždin, Croatia
| | - Z Profozić
- Clinical Microbiology and Parasitology Unit, Dr. Zora Profozić Polyclinic, Zagreb, Croatia
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Abstract
Nongonococcal urethritis (NGU) is a common genital tract syndrome in men, and up to 50% of cases are considered idiopathic, i.e., no etiological agent is identified. This poses challenges for clinicians in the diagnosis and treatment of NGU and often results in antibiotic misuse and overuse. Therefore, to identify potential infectious causes of urethritis and inform clinical management of urethritis cases, we characterized and compared the urethral microbiota of men with and without idiopathic urethritis. Participants were derived from a case-control study that examined viral and bacterial pathogens and sexual practices associated with NGU. Men with NGU who tested negative for established causes of NGU (Chlamydia trachomatis, Mycoplasma genitalium, Trichomonas vaginalis, adenoviruses, herpes simplex virus [HSV]-1, and/or HSV-2) were classified as idiopathic cases, and the controls were men reporting no current urethral symptoms. Men provided a urine sample that was used to characterize the urethral microbiota using 16S rRNA gene sequencing. Bacterial taxa associated with idiopathic urethritis were identified using analysis of compositions of microbiomes with bias correction. When stratified by sex of sexual partner, we found that the abundance of Haemophilus influenzae was significantly increased in men who have sex with men with idiopathic urethritis, and the abundance of Corynebacterium was significantly increased in men who have sex with women with idiopathic urethritis. Other taxa, including Ureaplasma, Staphylococcus haemolyticus, Streptococcus pyogenes, Escherichia, and Streptococcus pneumoniae/pseudopneumoniae, dominated the urethral microbiota of idiopathic urethritis cases but not controls, suggesting that these organisms may also contribute to urethritis. Importantly, the taxa we identified represent biologically plausible causes of urethritis and should be prioritized for future study.
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Meštrović T, Wilson J, Ljubin-Sternak S, Sviben M, Bedenić B, Barać A, Neuberg M, Drenjančević D, Ribić R, Kozina G. A 'pathogenic needle' in a 'commensal haystack': Genetic virulence signatures of Corynebacterium glucuronolyticum that may drive its infectious propensity for the male urogenital system. Med Hypotheses 2019; 126:38-41. [PMID: 31010496 DOI: 10.1016/j.mehy.2019.03.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/09/2019] [Accepted: 03/21/2019] [Indexed: 11/24/2022]
Abstract
The predominance of the genus Corynebacterium in the healthy male urogenital system contributes to the resident microbiome of not only the distal urethra, but potentially the proximal urethra and urinary bladder as well. However, for certain species in this genus, pathogenic potential was described, and the salient representative is Corynebacterium glucuronolyticum (C. glucuronolyticum) implicated in cases of urethritis and prostatitis in men. Nonetheless, some still question whether C. glucuronolyticum can actually be considered pathogenic or rather just a commensal species fortuitously isolated in patients with urogenital symptoms and/or syndromes. Although pathogen/commensal dichotomy is not always clear-cut, we hypothesize that specific genetic markers may expose C. glucuronolyticum as a convincingly pathogenic Corynebacterium. More specifically, characteristic pathogenic gene constellation inherent to this species (most notably the presence of specific sortase/SpaA-type pili gene clusters, but also the augmentative role of type VII secretion system) may significantly facilitate host tissue adhesion, with subsequent suppression/evasion of the immune response and acquisition of vitally important nutrients. Consequently, these genetic markers differentiate C. glucuronolyticum from its commensal counterparts, and give this species a pathogenic facet, which can be even further influenced by the Allee effect. In this paper we also propose a specific methodological approach on how to analyze C. glucuronolyticum epithelial colonization capacity and explore inceptive host cell-pathogen interactions that manipulate host environment and immune responses. This entails moving from approaches based primarily on overall homology of primary sequences towards specific structure-function studies to precisely evaluate all stakeholders involved in pili assemblage, cell adhesion and the expression of other virulence traits. In the era of high precision medicine, the hypothesized roles of C. glucuronolyticum adhesion systems in both virulence and nutrient acquisition may also reveal promising targets for future drug developments.
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Affiliation(s)
- Tomislav Meštrović
- Clinical Microbiology and Parasitology Unit, Polyclinic "Dr. Zora Profozić", Zagreb, Croatia; University Centre Varaždin, University North, Varaždin, Croatia.
| | - Jonas Wilson
- Sint Maarten Medical Center, Cay Hill, Sint Maarten (Dutch Part)
| | - Sunčanica Ljubin-Sternak
- University of Zagreb School of Medicine, Zagreb, Croatia; Clinical Microbiology Department, Teaching Institute of Public Health "Dr Andrija Štampar", Zagreb, Croatia
| | - Mario Sviben
- University of Zagreb School of Medicine, Zagreb, Croatia; Microbiology Service, Croatian National Institute of Public Health, Zagreb, Croatia
| | - Branka Bedenić
- University of Zagreb School of Medicine, Zagreb, Croatia; Department of Clinical and Molecular Microbiology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Aleksandra Barać
- Clinic for Infectious and Tropical Diseases, Clinical Centre of Serbia, Belgrade, Serbia; Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | | | - Domagoj Drenjančević
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; University Hospital Centre, Osijek, Croatia
| | - Rosana Ribić
- University Centre Varaždin, University North, Varaždin, Croatia
| | - Goran Kozina
- University Centre Varaždin, University North, Varaždin, Croatia
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A microbial game of whack-a-mole: clinical case series of the urethral uncloaking phenomenon caused by Corynebacterium glucuronolyticum in men treated for Chlamydia trachomatis urethritis. Infection 2018; 47:121-124. [PMID: 30168068 DOI: 10.1007/s15010-018-1211-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 08/28/2018] [Indexed: 10/28/2022]
Abstract
Corynebacterium glucuronolyticum is a rare and neglected, but increasingly recognized bacterial agent of infectious urethritis and other genitourinary syndromes in men. This is the first description of its proclivity to resurface as a cause of sustained urethritis in male patients previously treated for Chlamydia trachomatis, which represents a phenomenon that has to be differentiated from a simple post-treatment overgrowth of a colonizing agent.
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Meštrović T, Bedenić B, Wilson J, Ljubin-Sternak S, Sviben M, Neuberg M, Ribić R, Kozina G, Profozić Z. The impact of Corynebacterium glucuronolyticum on semen parameters: a prospective pre-post-treatment study. Andrology 2017; 6:223-229. [PMID: 29216684 DOI: 10.1111/andr.12453] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/22/2017] [Accepted: 11/07/2017] [Indexed: 11/28/2022]
Abstract
Corynebacterium glucuronolyticum (C. glucuronolyticum) is a rare isolate that is only recently being acknowledged as a potential urogenital pathogen. The bibliographical references on this bacterial species are scarce, and its influence on all semen parameters was hitherto unknown - therefore, the aim of this study was to evaluate its effects on a range of sperm quality parameters. A prospective approach to compare semen parameters before and after treatment was used in this study. C. glucuronolyticum in semen specimens was identified using analytical profile index biotyping system (API Coryne) and additionally confirmed by matrix-assisted laser desorption/ionization time-of-flight mass-spectrometry (MALDI-TOF MS), with the determination of antimicrobial susceptibility by Kirby-Bauer method. Semen analysis was performed according to the criteria from the World Health Organization (with the use of Tygerberg method of sperm morphology categorization). Very strict inclusion criteria for participants also included detailed medical history and urological evaluation. From a total of 2169 screened semen specimens, the inclusion rate for participants with C. glucuronolyticum that satisfied all the criteria was 1.01%. Antibiogram-guided treatment of the infection with ensuing microbiological clearance has shown that the resolution of the infection correlates with statistically significant improvement in the vitality of spermatozoa, but also with a lower number of neck and mid-piece defects. Parameters such as sperm count, motility and normal morphology were not affected. In addition, susceptibility testing revealed a trend towards ciprofloxacin resistance, which is something that should be considered when selecting an optimal treatment approach. Albeit it is rarely encountered as a monoisolate in significant quantities, C. glucuronolyticum may negatively influence certain sperm parameters; therefore, it has to be taken into account in the microbiological analysis of urogenital samples.
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Affiliation(s)
- T Meštrović
- Clinical Microbiology and Parasitology Unit, Polyclinic 'Dr. Zora Profozić', Zagreb, Croatia.,Department of Biomedical Sciences, University Centre Varaždin, University North, Varaždin, Croatia
| | - B Bedenić
- Medical Microbiology Department, School of Medicine, University of Zagreb, Zagreb, Croatia.,Department of Clinical and Molecular Microbiology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - J Wilson
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - S Ljubin-Sternak
- Medical Microbiology Department, School of Medicine, University of Zagreb, Zagreb, Croatia.,Clinical Microbiology Department, Teaching Institute of Public Health 'Dr Andrija Štampar', Zagreb, Croatia
| | - M Sviben
- Medical Microbiology Department, School of Medicine, University of Zagreb, Zagreb, Croatia.,Microbiology Service, Croatian National Institute of Public Health, Zagreb, Croatia
| | - M Neuberg
- Department of Biomedical Sciences, University Centre Varaždin, University North, Varaždin, Croatia
| | - R Ribić
- Research and Development Sector, TESLA d.o.o., Ivanec, Croatia
| | - G Kozina
- Department of Biomedical Sciences, University Centre Varaždin, University North, Varaždin, Croatia
| | - Z Profozić
- Clinical Microbiology and Parasitology Unit, Polyclinic 'Dr. Zora Profozić', Zagreb, Croatia
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Gram-Positive Uropathogens, Polymicrobial Urinary Tract Infection, and the Emerging Microbiota of the Urinary Tract. Microbiol Spectr 2017; 4. [PMID: 27227294 DOI: 10.1128/microbiolspec.uti-0012-2012] [Citation(s) in RCA: 198] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Gram-positive bacteria are a common cause of urinary-tract infection (UTI), particularly among individuals who are elderly, pregnant, or who have other risk factors for UTI. Here we review the epidemiology, virulence mechanisms, and host response to the most frequently isolated Gram-positive uropathogens: Staphylococcus saprophyticus, Enterococcus faecalis, and Streptococcus agalactiae. We also review several emerging, rare, misclassified, and otherwise underreported Gram-positive pathogens of the urinary tract including Aerococcus, Corynebacterium, Actinobaculum, and Gardnerella. The literature strongly suggests that urologic diseases involving Gram-positive bacteria may be easily overlooked due to limited culture-based assays typically utilized for urine in hospital microbiology laboratories. Some UTIs are polymicrobial in nature, often involving one or more Gram-positive bacteria. We herein review the risk factors and recent evidence for mechanisms of bacterial synergy in experimental models of polymicrobial UTI. Recent experimental data has demonstrated that, despite being cleared quickly from the bladder, some Gram-positive bacteria can impact pathogenic outcomes of co-infecting organisms. When taken together, the available evidence argues that Gram-positive bacteria are important uropathogens in their own right, but that some can be easily overlooked because they are missed by routine diagnostic methods. Finally, a growing body of evidence demonstrates that a surprising variety of fastidious Gram-positive bacteria may either reside in or be regularly exposed to the urinary tract and further suggests that their presence is widespread among women, as well as men. Experimental studies in this area are needed; however, there is a growing appreciation that the composition of bacteria found in the bladder could be a potentially important determinant in urologic disease, including susceptibility to UTI.
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Gherardi G, Di Bonaventura G, Pompilio A, Savini V. Corynebacterium glucuronolyticum causing genitourinary tract infection: Case report and review of the literature. IDCases 2015; 2:56-8. [PMID: 26793456 PMCID: PMC4672622 DOI: 10.1016/j.idcr.2015.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 03/08/2015] [Accepted: 03/08/2015] [Indexed: 12/30/2022] Open
Abstract
Corynebacterium species are increasingly recognized as opportunistic pathogens. A growing number of taxonomic studies has yielded a description of numerous new Corynebacterium species, such as those related to the urogenital tract, with Corynebacterium glucuronolyticum found to be rarely involved in genitourinary tract infections, particularly in male individuals. In this report, we describe a urethritis case caused by C. glucuronolyticum in a 37-year-old, apparently healthy male, who complained mild pain in the lower abdomen, with several urinary symptoms. While urethral and semen specimens did not yield positive results for microbiological evaluation, cultures of urine samples revealed the monomicrobial growth on blood-containing media of tiny colonies after 24 h of incubation, clearly evident only after 48 h of incubation under CO2-enriched atmosphere. Colonies were identified as C. glucuronolyticum both by matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) and 16S rRNA gene sequencing. Oral ciprofloxacin gradually led to clinical improvement and, finally, to a complete recovery, in accordance with microbiological findings. In spite of its infrequent detection, C. glucuronolyticum might be a potential urogenital pathogen in males more commonly that what believed, perhaps due to slow growth leading to underrecognition; we suggest therefore to consider the organism in the differential diagnostics of bacterial diseases of the urinary tract.
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Affiliation(s)
- G Gherardi
- Integrated Research Centre (CIR), University Campus Biomedico, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - G Di Bonaventura
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy; Center of Excellence on Aging, "G. d'Annunzio" University Foundation, Via Luigi Polacchi 11, 66100 Chieti, Italy
| | - A Pompilio
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy; Center of Excellence on Aging, "G. d'Annunzio" University Foundation, Via Luigi Polacchi 11, 66100 Chieti, Italy
| | - V Savini
- Clinical Microbiology and Virology, Spirito Santo Hospital, Via Fonte Romana 8, 65124 Pescara, Italy
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Curry CR, Saluja K, Das S, Thakral B, Dangle P, Keeler TC, Watkin WG. Encrusted Cystitis Secondary to Corynebacterium glucuronolyticum in a 57-Year-Old Man Without Predisposing Factors. Lab Med 2015; 46:136-9. [PMID: 25918192 DOI: 10.1309/lmxqp557einxbxif] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Encrusted cystitis is a rare condition characterized by encrustation of the bladder mucosa with associated chronic inflammation induced by urea-splitting bacterial infection--most commonly, Corynebacterium urealyticum. Moreover, it usually occurs in immunocompromised patients, especially recipients of renal transplants or patients with a history of previous urological procedures. Due to the rarity of the entity and the slow growth of Corynebacterium species, appropriate treatment is often delayed due to difficulties in diagnosis and resistance to numerous antibiotics. We report a case of encrusted cystitis caused by Corynebacterium glucuronolyticum, another urea-splitting microbe, in a 57-year-old previously healthy Caucasian man with no known predisposing factors. The timely diagnosis and management in this otherwise healthy patient was facilitated by characteristic imaging, cystoscopy, and histologic findings confirmed by results of prolonged urine cultures and 16S ribosomal RNA (rRNA) gene sequencing of the microbe.
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Affiliation(s)
- Chelsea R Curry
- Department of Pathology and Laboratory Medicine, University of Chicago Pritzker School of Medicine, Chicago, Illinois and NorthShore University HealthSystem, Evanston, Illinois
| | - Karan Saluja
- Department of Pathology and Laboratory Medicine, University of Chicago Pritzker School of Medicine, Chicago, Illinois and NorthShore University HealthSystem, Evanston, Illinois
| | - Sanchita Das
- Department of Pathology and Laboratory Medicine, University of Chicago Pritzker School of Medicine, Chicago, Illinois and NorthShore University HealthSystem, Evanston, Illinois
| | - Beenu Thakral
- Department of Pathology and Laboratory Medicine, University of Chicago Pritzker School of Medicine, Chicago, Illinois and NorthShore University HealthSystem, Evanston, Illinois
| | - Pankaj Dangle
- Division of Urology, University of Chicago Pritzker School of Medicine, Chicago, Illinois and NorthShore University HealthSystem, Evanston, Illinois
| | - Thomas C Keeler
- Division of Urology, University of Chicago Pritzker School of Medicine, Chicago, Illinois and NorthShore University HealthSystem, Evanston, Illinois
| | - William G Watkin
- Department of Pathology and Laboratory Medicine, University of Chicago Pritzker School of Medicine, Chicago, Illinois and NorthShore University HealthSystem, Evanston, Illinois
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Meštrović T, Bedenić B, Ljubin‐Sternak S, Sviben M, Profozić Z. Ciprofloxacin‐resistant Corynebacterium glucuronolyticum as a cause of male urethritis syndrome. JMM Case Rep 2014. [DOI: 10.1099/jmmcr.0.000208] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Tomislav Meštrović
- Clinical Microbiology and Parasitology Laboratory, Polyclinic ‘Dr Zora Profozić’, Bosutska 19, Zagreb, Croatia
| | - Branka Bedenić
- Department of Clinical and Molecular Microbiology, University Hospital Centre Zagreb, Kišpatićeva 12, Zagreb, Croatia
- Department of Microbiology, School of Medicine, University of Zagreb, Šalata 3, Zagreb, Croatia
| | - Sunčanica Ljubin‐Sternak
- Microbiology Service, Croatian National Institute of Public Health, Rockefellerova 12, Zagreb, Croatia
- Department of Microbiology, School of Medicine, University of Zagreb, Šalata 3, Zagreb, Croatia
| | - Mario Sviben
- Microbiology Service, Croatian National Institute of Public Health, Rockefellerova 12, Zagreb, Croatia
- Department of Microbiology, School of Medicine, University of Zagreb, Šalata 3, Zagreb, Croatia
| | - Zora Profozić
- Clinical Microbiology and Parasitology Laboratory, Polyclinic ‘Dr Zora Profozić’, Bosutska 19, Zagreb, Croatia
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Mändar R. Microbiota of male genital tract: Impact on the health of man and his partner. Pharmacol Res 2013; 69:32-41. [DOI: 10.1016/j.phrs.2012.10.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 10/16/2012] [Accepted: 10/29/2012] [Indexed: 10/27/2022]
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Paucisymptomatic infectious prostatitis as a cause of fever without an apparent origin. A series of 19 patients. Eur J Clin Microbiol Infect Dis 2012; 32:263-8. [PMID: 22956009 DOI: 10.1007/s10096-012-1738-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2012] [Accepted: 08/20/2012] [Indexed: 10/27/2022]
Abstract
According to the literature, prostatitis is a rare cause of prolonged fever without an apparent origin. However, this syndrome can be easily diagnosed using specific tests, either two-glass pre- and post-prostatic massage or the Meares-Stamey four-glass test. A retrospective study over a 5-year period (between August 1st 2006 and July 31st 2011) was performed. All patients who met the criteria for microbiological prostatitis were included and assigned to one of two groups, either a study group [paucisymptomatic infectious prostatitis (PIP)] or a control group [classic infectious prostatitis (CIP)]. Epidemiological, clinical, microbiological, and treatment-related variables were collected. A comparative study between both groups was performed. Thirty-nine patients were diagnosed with prostatitis. The main risk factors were unprotected anal intercourse, human immunodeficiency virus (HIV) infection, recent travel, and recurrent urinary tract infections. The most significant differences between the PIP (19 patients) and CIP (20 patients) groups were higher frequency of elevated inflammatory markers, higher frequency of monomicrobial etiology, and longer treatment. In monomicrobial prostatitis, the most common causative agents were coagulase-negative Staphylococcus spp., Escherichia coli, and Corynebacterium glucuronolyticum. According to the findings of this study, we believe that prostatitis should be included as a possible diagnosis in a man who complains of prolonged fever without an apparent origin and having at least one of the following risk factors: unprotected anal intercourse, HIV infection, recent travel, and recurrent urinary tract infections.
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