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Biomedical subjects

A Pahissa Berga

Publications and source records attributed to A Pahissa Berga.

At least 19 recordsLinked to original sources
PubMed1998

[Enterobacter amnigenus. An unusual human pathogen].

BACKGROUND: Enterobacter amnigenus is a bacteria with doubtful pathogenicity. The observation of a patient with a well-documented E. amnigenus infection has prompted us to review the pathology caused by this microorganism. METHODS: Retrospective evaluation of the clinical charts of patients with any isolate positive for E. amnigenus over a period of 46 months. Based on the clinical data, presence or absence of other causal microorganisms and/or alternative diagnosis, E. amnigenus was classified as definitive, probable, or improbable cause of infection. RESULTS: We analyzed 15 E. amnigenus isolates, representing 0.97 of 10,000, the total bacterial isolates in our laboratory for this period, and 0.52% of those corresponding to Enterobacter sp. We were able to clinically evaluate E. amnigenus in 7 patients, in whom infection by this microorganism was classified as definitive in 4, probable in 1, and improbable in 2. Antibiotic susceptibility studies showed a resistance level of 83% to ampicillin, 75% to cefazoline and cefoxitine, and 33% to amoxicillin-clavulanic acid. All isolates were susceptible to third-generation cephalosporins, aztreonam, ciprofloxacin, cotrimoxazole and aminoglycosides. CONCLUSIONS: E. amnigenus cause well-documented bacterial infection in man. Thus, isolation of this microorganism should not be considered as a contaminant or simple colonizer. The clinical behavior and antimicrobial susceptibility of E. amnigenus is similar to that of E. cloacae, a taxonomically-related species.

Aged↗
PubMed1990

[Meningitis caused by Staphylococcus aureus. Analysis of 16 cases].

During the period between 1982 and 1987, 16 cases of meningitis due to Staphylococcus aureus were diagnosed. Nine patients (56%) had undergone a previous neurosurgical operation and 5 of them were carriers of a cerebrospinal fluid (CSF) shunt. Seven patients (44%) had spontaneous meningitis. Fever and meningeal signs were the most common clinical findings. 50% of patients were comatose. The Gram stain of CSF showed Gram positive cocci in 7 cases. Blood cultures were positive in all patients with spontaneous meningitis and negative in the neurosurgical group. Overall mortality rate was 37.5%, and it was lower in the neurosurgical group than in the spontaneous meningitis. Other factors associated with a poor outcome were advanced age, bacteremia and septic shock.

Adolescent↗