Unusual Pathogens in Narcotic-Associated Endocarditis

Szabo, Susan; Lieberman, Judith P.; Lue, Yvonne A.

doi:10.1093/clinids/12.3.412

Cited by 28 publications

(9 citation statements)

References 21 publications

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“…Multiresistance is very common in C. amycolatum strains, whereas true C. xerosis strains are susceptible to nearly all antimicrobial agents tested (147,154). There are four reported associations with endocarditis (60,262,371,421), with the organisms being generally susceptible. In only one report (446), however, was there enough information on the identification.…”

Section: Nonlipophilic Fermentative Corynebacteriamentioning

confidence: 99%

Clinical microbiology of coryneform bacteria

et al. 1997

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Coryneform bacteria are aerobically growing, asporogenous, non-partially-acid-fast, gram-positive rods of irregular morphology. Within the last few years, there has been a massive increase in the number of publications related to all aspects of their clinical microbiology. Clinical microbiologists are often confronted with making identifications within this heterogeneous group as well as with considerations of the clinical significance of such isolates. This review provides comprehensive information on the identification of coryneform bacteria and outlines recent changes in taxonomy. The following genera are covered: Corynebacterium, Turicella, Arthrobacter, Brevibacterium, Dermabacter. Propionibacterium, Rothia, Exiguobacterium, Oerskovia, Cellulomonas, Sanguibacter, Microbacterium, Aureobacterium, "Corynebacterium aquaticum," Arcanobacterium, and Actinomyces. Case reports claiming disease associations of coryneform bacteria are critically reviewed. Minimal microbiological requirements for publications on disease associations of coryneform bacteria are proposed.

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Section: Nonlipophilic Fermentative Corynebacteriamentioning

confidence: 99%

Clinical microbiology of coryneform bacteria

et al. 1997

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“…[9] This organism is not generally considered virulent, although, it has been reported to cause endocarditis in some intravenous drug users. [24] An interesting finding in our study involved the case of the rubra variant, where two different pathogens were isolated, Corynebacterium sp. and Serratia marcescens , the latter being an extremely opportunistic type of bacteria, with low virulence, and which produces a carotenoid pigment.…”

Section: Discussionmentioning

confidence: 99%

Trichomycosis (trichobacteriosis): Clinical and microbiological experience with 56 cases

et al. 2013

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Background:Trichomycosis is asymptomatic bacterial infection of the axillary hairs caused by Corynebacterium sp.Objective:to bring a series of cases of trichomycosis, its clinical and microbiological experience.Materials and Methods:This report consists in a linear and observational retrospective study of 15 years of cases of trichomycosis confirmed clinically and microbiologically.Results:Fifty six confirmed cases of trichomycosis were included in this report. The majority were men 53/56 (94.6%), mean age was 32.5 years. The most commonly affected area was the axilla (92%), trichomycosis flava was the principal variant 55/56 (98.2%) and signs and symptoms associated were hyperhidrosis (87.5%), hairs’ texture change (57.1%) and odor (35.7%). Bacterial concretions were observed in all cases, and the predominant causative agent in 89.3% of all cases was Corynebacterium sp. Thirty patients were included in therapeutic portion of the study, and 28 (93.3%) of them experienced a clinical and microbiological cure.Conclusion:Trichomycosis is asymptomatic, superficial infection, which primarily affects axillary hairs.

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“…Despite DGI being a rare complication, its incidence is currently increasing relative to the steady increase in the incidence of gonorrhea worldwide [45]. N. cinerea Blood Septicemia [127,128] Brain Meningitis [128] Genitourinary tract Genital infections [129] Urinary infection [130] Peritoneum Peritonitis [131] Eye Conjunctivitis/ophthalmia neonatorum [132,133] N. dumasiana Sputum (Insufficient clinical data) [134] N. elongata Heart Endocarditis [135,136] Blood Septicemia [137] Bone Osteomyelitis [138] N. flava Heart Rheumatic heart disease/ventricular septaldefect/endocarditis [139] Endocarditis [140] Blood Sepsis/conjunctival petechia [139] N. flavescens Heart Endocarditis [141,142] Brain Meningitis [143,144] Blood Septicemia [145,146] Lung Pneumonia/empyema [147] Genitourinary tract Genital infections [148] N. lactamica Brain Meningitis [149,150] Blood Septicemia [145,151] Pharynx Pharyngitis [152] Lung Cavitary lesion [153] Pneumonia [154] Genitourinary tract Genital infections [129,155,156] N. mucosa Heart Endocarditis [157][158][159] Brain Meningitis [160,161] Blood Septicemia…”

Section: Disseminated Gonococcal Infections (Dgis)mentioning

confidence: 99%

“…Since then, many other cases of confirmed endocarditis caused by N. sicca have been recorded [175,176]. Other commensal Neisseria species have also been associated with heart infections, e.g., N. bacilliformis [122,123], N. elongata [135,136], N. flava [139,140], N. flavescens [141,142], N. mucosa [157][158][159], N. perflava [170,171], and N. subflava [183,184], (Table 1).…”

Section: Endocarditismentioning

confidence: 99%

Atypical, Yet Not Infrequent, Infections with Neisseria Species

Humbert

Christodoulides

2019

Pathogens

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Neisseria species are extremely well-adapted to their mammalian hosts and they display unique phenotypes that account for their ability to thrive within niche-specific conditions. The closely related species N. gonorrhoeae and N. meningitidis are the only two species of the genus recognized as strict human pathogens, causing the sexually transmitted disease gonorrhea and meningitis and sepsis, respectively. Gonococci colonize the mucosal epithelium of the male urethra and female endo/ectocervix, whereas meningococci colonize the mucosal epithelium of the human nasopharynx. The pathophysiological host responses to gonococcal and meningococcal infection are distinct. However, medical evidence dating back to the early 1900s demonstrates that these two species can cross-colonize anatomical niches, with patients often presenting with clinically-indistinguishable infections. The remaining Neisseria species are not commonly associated with disease and are considered as commensals within the normal microbiota of the human and animal nasopharynx. Nonetheless, clinical case reports suggest that they can behave as opportunistic pathogens. In this review, we describe the diversity of the genus Neisseria in the clinical context and raise the attention of microbiologists and clinicians for more cautious approaches in the diagnosis and treatment of the many pathologies these species may cause.

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Unusual Pathogens in Narcotic-Associated Endocarditis

Cited by 28 publications

References 21 publications

Clinical microbiology of coryneform bacteria

Clinical microbiology of coryneform bacteria

Trichomycosis (trichobacteriosis): Clinical and microbiological experience with 56 cases

Atypical, Yet Not Infrequent, Infections with Neisseria Species

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