Cases reported "Moraxellaceae Infections"

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1/6. Concomitant spine infection with mycobacterium tuberculosis and pyogenic bacteria: case report.

    STUDY DESIGN: A case report of an extremely rare condition describing lumbar spine tuberculosis associated with concurrent pyogenic infection is presented. OBJECTIVE: To establish that isolation of pyogenic bacteria from an infected spine does not exclude the possibility of spine tuberculosis. SUMMARY OF BACKGROUND DATA: During a medline data search from January 1960 through October 2001, no cases of combined spine tuberculosis and pyogenic infection were found. methods: A 52-year-old man reported left-side gluteal swelling, backache, and fever of 20 days duration. A similar swelling in the same location had occurred 12 years previously, and an operation was performed at that time. Preoperative syringe-aspirated material from a gluteal abscess was sent for ordinary bacteriologic culture (for only aerobic pyogenic bacteria). During the operation, a needle-aspirated specimen of evacuated pus was subjected to direct microscopy and culture. Direct Gram stain for pyogenic bacteria and direct Ziehl-Neelsen stain for mycobacteria were performed. Cultures for aerobes, anaerobes, mycobacteria, and fungi were made. RESULTS: The preoperative specimen culture showed growth of nocardia asteroids and moraxella catarrhalis, whereas the operative specimen showed gram-positive cocci and acid-fast bacilli on direct smears. The operative cultures yielded growth of nocardia asteroids, moraxella catarrhalis, and mycobacterium tuberculosis. Plain lumbar spine radiograph showed psoas muscle calcification. CONCLUSIONS: It is concluded from this case that recovery of pyogenic bacteria from an infected spine does not exclude spine tuberculosis. It is recommended, therefore, that mycobacterial investigations be performed for cases that have evidence of tuberculosis, even when pyogenic microorganisms already have been isolated. The clues that raise suspicion of tuberculosis in patients with pyogenic spine infection include chronic infection that does not respond to ordinary antibiotics, isolated pyogenic bacteria of low virulence, psoas muscle calcification, and immunosuppression. ( info)

2/6. Presumed endocarditis caused by BRO beta-lactamase-producing moraxella lacunata in an infant with Fallot's tetrad.

    A case of presumed endocarditis caused by moraxella lacunata in a 15-month-old male infant with Fallot's tetrad is described. This infection may have occurred as the result of transmission of this organism between the father and his son. This is the first report of BRO beta-lactamase-producing M. lacunata causing presumed endocarditis. ( info)

3/6. moraxella osloensis blood and catheter infections during anticancer chemotherapy: clinical and microbiologic studies of 10 cases.

    moraxella osloensis, a gram-negative bacterium that is saprophytic on skin and mucosa, rarely causes infections. Moreover, infections in patients with cancer have not been reported. We describe 10 cases of M. osloensis blood or catheter infections that occurred during anticancer chemotherapy with or without preexisting neutropenia. The organism was identified definitively by sequencing analysis of the 16S ribosomal rna gene. fever (up to 39.7 degrees C) with substantial neutrophilia characterized these infections. The infections were monomicrobic for 3 patients and polymicrobic for 7 patients. Nine patients acquired the infection through central venous catheter colonization. The likely sources of the organism were sinusitis (3 cases), bronchitis (1 case), presumed subclinical mucositis from anticancer therapy (4 cases), and cutaneous graft-vs-host disease (2 cases). The infections resolved, without catheter removal, after antibiotic therapy with cell wall-active agents, to which all strains were shown to be susceptible. The M. osloensis strains exhibited significant morphologic variations on gram stain, and sheep blood agar was the preferred culture medium for 9 strains. ( info)

4/6. Mucoid nitrate-negative moraxella nonliquefaciens from three patients with chronic lung disease.

    Mucoid strains of moraxella nonliquefaciens were recovered from the sputa of three indigenous Australians with chronic lung disease. These atypical strains failed to reduce nitrate, and one strain produced beta-lactamase. While the mucoid phenotype of M. nonliquefaciens has rarely been reported, the mucoid nitrate-negative biovar has never been previously reported. ( info)

5/6. Infective endocarditis due to moraxella lacunata: report of 4 patients and review of published cases of moraxella endocarditis.

    moraxella is an aerobic, oxidase-positive, Gram-negative coccobacillus, which is rarely associated with serious and invasive infections. We describe 4 cases of moraxella lacunata endocarditis and review 12 previously published cases of moraxella endocarditis, including 1 further case with M. lacunata, 5 with M. catarrhalis, 2 with M. phenylperuvica and the remainder consisting of 1 case each of M. liquefaciens, M. osloensis, M. nonliquefaciens and 1 non-specified. Of these 16 patients, 5 had prosthetic valves, 5 suffered from an underlying heart abnormality, and the other 6 had normal hearts. Therapy consisted of a beta-lactam antimicrobial and, in several instances, an aminoglycoside as well. The mean duration of antibiotic treatment was 35 /-13 d. Four patients (25%) underwent surgery and 4 out of 16 (25%) died. moraxella should be added to the growing list of organisms which may occasionally cause infective endocarditis, even in patients without preexisting valvular abnormality. ( info)

6/6. Alkanindiges hongkongensis sp. nov. A novel Alkanindiges species isolated from a patient with parotid abscess.

    A bacterium was isolated from the abscess pus of a 72-year-old patient with Warthin's tumor and parotid abscess. The cells were aerobic, non-motile, Gram-negative but difficult to be destained, non-sporulating, coccobacillus. The bacterium grew poorly on sheep blood agar and MacConkey agar as non-hemolytic colonies of 0.5 mm in diameter after 24h of incubation at 37 degrees C in ambient air. growth was enhanced by Tween 80. It produces catalase but not cytochrome oxidase. Sequencing of the cloned 16S rRNA PCR products of the bacterium revealed three different 16S rRNA gene sequences, with 12 - 31 bp differences among them. Phylogenetic analysis showed that the bacterium is closely related to Alkanindiges illinoisensis, with 5.0 - 5.9% differences between the 16S rRNA gene sequence of the bacterium and that of A. illinoisensis. tryptophan auxotrophic strain of acinetobacter trpE27 transformed with dna extracted from the bacterium was unable to grow on tryptophan deficient medium, indicating that the bacterium was not a strain of acinetobacter. The G C content of the bacterium (mean /-SD) was 46.9 4.3%. A new species, Alkanindiges hongkongensis sp. nov., is proposed, for which HKU9T is the type strain. Isolates with "small colonies" that are apparently acinetobacter-like species should be carefully identified. growth enhancement with aliphatic hydrocarbons should be looked for and 16S rRNA gene sequencing performed in order to find more potential cases of Alkanindiges infections, as well as to define the epidemiology, clinical spectrum, and outcome of infections associated with this genus. ( info)

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