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1.
Arq. bras. cardiol ; 76(4): 315-22, abr. 2001.
Article in Portuguese, English | LILACS | ID: lil-285835

ABSTRACT

With the development of penicillin, Streptococcus pneumoniae has become an uncommon cause of bacterial endocarditis in adults. Subacute manifestation of pneumococcal endocarditis has been reported a few times in the literature, but most reports define the disease as acute, severe, and having a high mortality rate. We report the case of a 58-year-old male with subacute bacterial endocarditis due to Streptococcus pneumoniae. We stress the low frequency of this agent as a cause of endocarditis and the atypical evolution of this case. The pathophysiology, clinical manifestations and evolution, and the therapeutical options for this type of infection are also discussed.


Subject(s)
Humans , Male , Middle Aged , Endocarditis, Subacute Bacterial/microbiology , Pneumococcal Infections/microbiology , Aortic Valve , Aortic Valve/pathology , Cerebral Hemorrhage , Cerebral Infarction , Endocarditis, Subacute Bacterial/diagnosis , Endocarditis, Subacute Bacterial/drug therapy , Intracranial Embolism , Pneumococcal Infections/diagnosis , Pneumococcal Infections/drug therapy , Streptococcus pneumoniae/isolation & purification
2.
Infectol. microbiol. clin ; 6(5): 144-56, sept. 1994. tab
Article in Spanish | LILACS | ID: lil-142321

ABSTRACT

Cuando se compara con la caracterización de la EI en los '70 y a principios de los '80, parece que es más probable que en los '90 la EI se presente en forma aguda y asociada con menos estigmas clásicos y también es más probable que el agente etiológico sea S. aureus. Si esto representa un verdadero cambio clínico y microbiológico en el espectro de la enfermedad o es el resultado de informes con un efecto de sesgo, en este momento resulta poco claro. La posibilidad para designar un caso definitivamente como EI desde un punto de vista clínico ha mejorado con la utilización de nuevos criterios diagnósticos, entre ellos los hallazgos de la ecocardiografía bidimensional en el esquema de clasificación. Estos nuevos criterios han sido confirmados en poblaciones seleccionadas de pacientes, no obstante habría que confirmarlos en otros grupos de pacientes en riesgo de padecer EI (v.g. receptores de válvulas protésicas). La ecocardiografía bidimensional es la técnica no invasiva de elección para la EI vegetante definida. La ETE es significativamente más sensible para poder identificar vegetaciones valvulares que la ETT y también representa el método de elección para detectar complicaciones perianulares en la EI. Queda todavía ser aclarado cuál es el papel de la evaluación del flujo Doppler en la insuficiencia valvular de la EI. Los esquemas con cursos cortos (2 semanas) de un ß-lactámico más un aminoglucósido, parecen ser altamente efectivos en el tratamiento de la EI derecha por S. aureus. El empleo de vancomicina para el tratamiento de la EI por S. aureus continúa siendo cuestionada debido a informes que hablan de una respuesta lenta y subóptima en los resultados al tratamiento


Subject(s)
Humans , Disease Reservoirs , Endocarditis, Bacterial/etiology , Endocarditis, Subacute Bacterial/microbiology , Staphylococcus aureus/drug effects , Echocardiography , Echocardiography/statistics & numerical data , Echocardiography/statistics & numerical data , Echocardiography, Transesophageal/statistics & numerical data , Endocarditis, Bacterial , Endocarditis, Bacterial/drug therapy , Endocarditis, Subacute Bacterial/diagnosis , Endocarditis, Subacute Bacterial/drug therapy , Sensitivity and Specificity
3.
Rev. chil. infectol ; 7(3): 158-65, 1990. tab
Article in Spanish | LILACS | ID: lil-119743

ABSTRACT

Se revisan los aspectos clínicos y el diagnóstico bacteriológico de la infección por Erysipelothrix rhusiopathiae (ER). Presentación de dos casos clínicos: el primero corresponde a una endocarditis subaguda con complicaciones neurológicas sugerentes de embolias cerebromeníngeas en un enfermo portador de insuficiencia aórtica, que evoluciona en forma progresiva. Por error diagnóstico el tratamiento específico se inicia tardíamente. La endocarditis por ER, a pesar de la sensibilidad del organismo a la penicilina, tiene una mayor letalidad que las endocarditis de otras etiologías. Este paciente fallece por ruptura de velos aórticos. En el segundo caso, se trata de un enfermo con meningitis por ER que tiene una buena respuesta al tratamiento antibiótico. Aunque la infección por ER es rara en el hombre, en su forma septicémica o de compromiso meníngeo, debe considerarse como posibilidad diagnóstica, si se aísla un difteromorfo de sangre o de LCR


Subject(s)
Humans , Male , Adult , Endocarditis, Subacute Bacterial/microbiology , Erysipelothrix Infections/microbiology , Meningitis, Bacterial/microbiology , Erysipelothrix/pathogenicity
4.
Yonsei Medical Journal ; : 54-58, 1983.
Article in English | WPRIM | ID: wpr-63729

ABSTRACT

Actinobacillus actinomycetemcomitans, a rare human pathogen, was repeatedly isolated from the blood of a 20-year-old male patient with patent ductus arteriosus who developed subacute bacterial endocarditis. Difficulties in isolating and identifying the organism are discussed. The bacterial isolate was found to be susceptible to various antimicrobial agents.


Subject(s)
Adult , Humans , Male , Actinobacillus/isolation & purification , Blood/microbiology , Endocarditis, Subacute Bacterial/microbiology , Sepsis/microbiology
5.
Yonsei Medical Journal ; : 44-49, 1975.
Article in English | WPRIM | ID: wpr-51419

ABSTRACT

Nonpathogenic Neisseria, normal inhabitants of the human nasopharynx, are known to cause occasional infections including such severe ones as septicemia, meningitis and endocarditis. Recently two strains of so called nonpathogenic. Neisseria, identified as N. subflava, were isolated from blood specimens of two different patients. One patient had meningitis, septicemia and subacute bacterial endocarditis while the other had septicemia. Pigment production by both of the strains was not definite and only a light yellow color was observed after prolonged incubation. However, the isolates showed bacteriological characteristics of N. subflava, namely gramnegative diplococci which were oxidase positive, acid production from fructose, glucose, maltose and sucrose but not from lactose or mannitol; and iodine reacting polysaccharide production from sucrose. One of the patients revealed serum agglutinin titers up to 1 : 640 against the isolate.


Subject(s)
Adult , Female , Humans , Male , Endocarditis, Subacute Bacterial/microbiology , Meningitis/microbiology , Middle Aged , Neisseria/isolation & purification , Sepsis/microbiology
6.
Yonsei Medical Journal ; : 126-130, 1970.
Article in English | WPRIM | ID: wpr-69422

ABSTRACT

Vibrio fetus was isolated from blood specimens of a subacute bacterial endocarditis patient. The 38 year old male patient was admitted to Severance Hospital in January 1970 for 11 days and again in July 1970 for 13 days. Subacute bacterial endocarditis was the major condtion. Aortic insufficiency and cholestatic hepatitis were the accessory diagnosis. The organism was isolated during the second admission. V. fetus human infection is known to be very rare, and the present case appears to be the first case in Korea. V. fetus grows very slowly with increased carbon dioxide tension which favours the growth. It is a slightly curved, S-shaped and spiral gram-negative organism. Many antibiotics, effective to gram negative organisms, inhibit the growth of the organism. V. fetus is an animal pathogen causing disease in ruminants. The patient enjoyed raw beef dishes. He could be infected with the organism by eating raw beef.


Subject(s)
Adult , Humans , Male , Campylobacter fetus/isolation & purification , Endocarditis, Subacute Bacterial/etiology , Endocarditis, Subacute Bacterial/microbiology , Vibrio/isolation & purification , Vibrio Infections/microbiology
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