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      Lactobacillus rhamnosus Endocarditis After Upper Endoscopy

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          Abstract

          Lactobacillus rhamnosus is commonly found in gastrointestinal flora and used in probiotics but is a rare human pathogen. We report a case of L. rhamnosus endocarditis following upper endoscopy in a frequent consumer of yogurt containing the organism, who required aortic and mitral valve replacement for cure.

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          Most cited references18

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          Pathogenic relevance of Lactobacillus: a retrospective review of over 200 cases.

          Given that Lactobacillus has been reported to be the causative pathogen in many types of infection despite debate regarding the organism's clinical significance, a literature review was conducted to investigate the treatments and outcomes of Lactobacillus infections reported to date. In this article, the characteristics of over 200 reported cases of Lactobacillus-associated infections are summarized. Lactobacillus was found to be frequently associated with endocarditis and bacteremia. Lactobacillus was also associated with a variety of other infections including, but not limited to, peritonitis, abscesses, and meningitis. The species casei and rhamnosus were the most common. The isolates tended to be most sensitive to erythromycin and clindamycin and most resistant to vancomycin. The species that was most sensitive to vancomycin was acidophilus. The overall mortality rate was nearly 30%. There was a significant association between mortality and polymicrobial infection (P=0.004). In the subset of patients with bacteremia, increased mortality was associated with inadequate treatment (P=0.001) and polymicrobial bacteremia (P=0.044).
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            Lactobacillus bacteremia, clinical significance, and patient outcome, with special focus on probiotic L. rhamnosus GG.

            Lactobacillus bacteremia is a rare entity, and its clinical significance is poorly defined. We have reviewed the risk factors and outcome for 89 case patients with Lactobacillus bacteremia. Species characterization was done in 53% of the cases, revealing 25 L. rhamnosus strains and 22 other Lactobacillus species. In 11 cases, the strain was identical with the probiotic L. rhamnosus GG. In 82% of the cases, the patients had severe or fatal comorbidities. Predisposing factors to bacteremia were immunosuppression, prior prolonged hospitalization, and prior surgical interventions. No significant differences were observed in these predisposing factors or clinical features between patients with cases associated with the various Lactobacillus species, other than higher C-reactive protein values in patients with L. rhamnosus bacteremia. Mortality was 26% at 1 month and was 48% at 1 year. In multivariate analysis, severe underlying diseases were a significant predictor for mortality (odds ratio [OR], 15.8), whereas treatment with antimicrobials effective in vitro was associated with lower mortality (OR, 0.22). We conclude that lactobacilli in blood cultures are of clinical significance and that their susceptibility should guide decisions about antimicrobial treatment.
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              Lactic acid bacteria and human clinical infection.

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                Author and article information

                Journal
                Open Forum Infect Dis
                Open Forum Infect Dis
                ofid
                Open Forum Infectious Diseases
                Oxford University Press (US )
                2328-8957
                Spring 2017
                02 May 2017
                02 May 2017
                : 4
                : 2
                : ofx085
                Affiliations
                [1 ]Division of Infectious Diseases, Department of Medicine ,
                [2 ]Division of Cardiology, Department of Medicine , and
                [3 ]Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons , New York
                Author notes

                Correspondence: J. G. Aaron, MD, Columbia University Medical Center, 630 W 168 St, P&S Box 82, New York, NY 10032 ( ja2822@ 123456cumc.columbia.edu ).

                Article
                ofx085
                10.1093/ofid/ofx085
                5499731
                28695143
                cda96db5-21c1-4169-860b-bc8cfea6a3c7
                © The Author 2017. Published by Oxford University Press on behalf of Infectious Diseases Society of America.

                This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence ( http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

                History
                : 01 January 2017
                : 20 April 2017
                Page count
                Pages: 3
                Funding
                Funded by: National Institute of Allergy and Infectious Disease
                Award ID: T32- AI100852
                Categories
                Brief Report

                lactobacillus,lactobacillus rhamnosus,endocarditis,endoscopy,yogurt

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