Biomedical subjects
Publications and source records attributed to L Brasme.
Nocardia ignorata is a recently described species identified on the basis of a single isolate of unknown origin. Here we describe the epidemiological, phenotypic, and phylogenetic characteristics of this new species, based on five new clinical and soil isolates.
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A nonchromogenic Mycobacterium species was isolated from an AIDS patient with acute lymphadenitis. On the basis of the results of conventional tests, the strain appeared to be an atypical nonphotochromogenic Mycobacterium kansasii strain. Sequencing of the 16S rRNA gene revealed a unique nucleic acid sequence, suggesting that the isolate represents an undescribed pathogenic species.
PURPOSE: Bacillary endophthalmitis occurring after penetrating ocular trauma with an intraocular foreign body is always associated with poor visual outcome. Bacilli cause fulminant infection associated with tissue damage in the intraocular structures. CASE REPORTS: Our series consisted of four patients with penetrating ocular trauma and endophthalmitis caused by B. cereus or B. licheniformis. Three eyes ultimately developed phtisis. Only on eye recovered good vision (2.5/10 P4). DISCUSSION: Recommended early treatment includes topical, subconjunctival, parenteral antibiotics. A review of the literature indicates that intravitreal antibiotic infusion is crucial for sufficient concentration to control infection. Early vitrectomy is recommended in the management of endophthalmitis. Vitreous and intraocular foreign bodies should be cultured to identify pathogens and ascertain antibiotic susceptibilities.
Coagulase-negative Staphylococci (CNS), considered for many years to be commensal bacteria of the skin are now recognized as major agents of nosocomial infection. Bacterial factors (increased resistance), host factors (immune status) and multiplication of the portals of entry (presence of foreign material) have contributed to the increased incidence of nosocomial infections. The importance of the role of NCS in urology is due to their great capacity to colonize catheters and most prostheses. The particular organization of these bacteria into a conglomerate called biofilm is responsible for prosthetic infections, which can impair renal function and can sometimes be life-threatening. The authors review the current increase of the number of CNS isolated in urology departments and describe the various therapeutic strategies that can be proposed to eradicate these bacteria.
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