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1.
Rev. argent. microbiol ; 40(3): 158-160, jul.-sep. 2008.
Article in Spanish | LILACS | ID: lil-634594

ABSTRACT

Se describe un caso de meningitis por Streptococcus suis en un paciente inmunocompetente. Presentaba astenia, debilidad generalizada, fiebre (39 °C), vómitos, deterioro del sensorio y desorientación témporo-espacial. Los cultivos de sangre (2/2) y de líquido cefalorraquídeo fueron positivos. La identificación preliminar se realizó utilizando las pruebas bioquímicas convencionales y fue completada en el Servicio Bacteriología Especial del INEI-ANLIS "Dr. Carlos G. Malbrán". Se comenzó el tratamiento con ampicilina y ceftriaxona. El microorganismo aislado demostró sensibilidad a ampicilina, cefotaxima y vancomicina. El paciente evolucionó favorablemente, pero se comprobó leve hipoacusia. Reingresó a los 4 meses con marcha atáxica, anacusia en oído izquierdo e hipoacusia en oído derecho. Continúa con seguimiento neurológico y audiométrico. Retrospectivamente se constató el contacto del paciente con cerdos. Se destaca la importancia de la anamnesis para alertar la sospecha de este agente etiológico en meningitis y bacteriemias.


A case of Streptococcus suis meningitis is described in an immunocompetent patient presenting asthenia, general weakness, fever, vomiting, sensory deterioration and temporospatial disorder. The cerebrospinal fluid and two blood cultures (2/2 bottles) were positive. The isolate was preliminary identified by conventional biochemical tests, and the identification was completed at the Special Bacteriology Service of INEI-ANLIS "Dr. Carlos G. Malbrán". Ampicillin and ceftriaxone treatment was initiated. The isolate was susceptible to ampicillin, cefotaxime and vancomycin. The patient experienced a good outcome but suffered hearing loss. However, after four months he returned with walking ataxia, deafness in his left ear, and hearing loss in the right ear. The patient’s retrospective exposure to pigs had been verified. It is important to evaluate predisposing and epidemiologic factors in order to alert about the possible presence of this etiological agent in cases of meningitis or bacteremia.


Subject(s)
Humans , Male , Middle Aged , Meningitis, Bacterial , Streptococcal Infections , Streptococcus suis , Immunocompetence , Meningitis, Bacterial/diagnosis , Meningitis, Bacterial/drug therapy , Streptococcal Infections/diagnosis , Streptococcal Infections/drug therapy
3.
Rev. argent. microbiol ; 37(3): 129-134, jul.-sep. 2005. ilus
Article in Spanish | LILACS | ID: lil-634496

ABSTRACT

La fibrosis quística (FQ) se caracteriza por disfunciones en las glándulas de secreción exocrina del organismo. Las primeras manifestaciones suelen observarse en el sistema respiratorio, constituyendo una de las causas más importantes de morbimortalidad en los pacientes afectados. Los microorganismos patógenos que colonizan frecuentemente el tracto respiratorio de estos pacientes son Staphylococcus aureus, Haemophilus spp., y Pseudomonas aeruginosa. Entre noviembre de 2001 y agosto de 2004 se estudiaron 222 muestras respiratorias de pacientes con FQ de entre 4 meses y 11 años de edad. Se aislaron S. aureus (38,7%), P. aeruginosa (37,4%) y Haemophilus spp., (15,3%). En S. aureus la meticilina-resistencia fue del 25,9% y se asoció con altas resistencias a eritromicina (35,0%) y clindamicina (29,4%). El mayor porcentaje de resistencia observado en las cepas de P. aeruginosa fue frente a gentamicina (31,0%). Los aislamientos de Haemophilus spp. fueron resistentes a ampicilina (23,0%) debido a la presencia de beta-lactamasas, y a trimetoprima/sulfametoxazol (59,0%).


Cystic Fibrosis (CF) is characterized by a dysfunction of the exocrine secretion glands. The first symptoms often appear in the respiratory system which constitutes one of the most important morbimortality causes in these patients. Chronic respiratory tract colonization is caused mainly by bacteria such as Staphylococcus aureus, Haemophilus spp. and Pseudomonas aeruginosa. Respiratory samples from patients with CF (age group: 4 months to 11 years) were analyzed from November 2001 to August 2004. The most frequently isolated microorganisms were S. aureus (38.7%), P. aeruginosa (37.4%) and Haemophilus spp (15.3%). A high resistance to erithromycine (35.0%) and clindamicine (29.4%) was observed in S. aureus strains and 25.9% of them were methicillin-resistant. P. aeruginosa strains were mainly gentamicin-resistant (31.0%). The rate of ampicillin-resistant Haemophilus spp. was 23.0% and it was due to the presence of beta-lactamases, but a high trimethoprim-sulfamethoxazole resistance was observed in this microorganism (59.0%).


Subject(s)
Child , Child, Preschool , Female , Humans , Infant , Male , Bacteria/isolation & purification , Bacterial Infections/microbiology , Cystic Fibrosis/complications , Respiratory Tract Infections/microbiology , Bacterial Infections/etiology , Cystic Fibrosis/microbiology , Disease Susceptibility , Drug Resistance, Bacterial , Drug Resistance, Fungal , Fungi/drug effects , Fungi/isolation & purification , Haemophilus Infections/etiology , Haemophilus Infections/microbiology , Haemophilus/drug effects , Haemophilus/isolation & purification , Mycoses/etiology , Mycoses/microbiology , Pseudomonas Infections/etiology , Pseudomonas Infections/microbiology , Pseudomonas aeruginosa/drug effects , Pseudomonas aeruginosa/isolation & purification , Respiratory Tract Infections/etiology , Staphylococcal Infections/etiology , Staphylococcal Infections/microbiology , Staphylococcus aureus/drug effects , Staphylococcus aureus/isolation & purification
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