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1.
Acta odontol. venez ; 46(3): 269-272, dic. 2008. graf
Artigo em Espanhol | LILACS | ID: lil-630075

RESUMO

La Hepatitis C constituye un problema de salud pública y su transmisión está claramente asociada con la ruta parenteral. Sin embargo su agente causal, Virus de Hepatitis C (VHC), también ha sido aislado de otros fluidos incluyendo la saliva, aunque la relación existente entre VHC y la patología bucal no está completamente dilucidada. El objetivo del presente estudio fue determinar la presencia de ARN-VHC en la saliva de pacientes con Hepatitis C crónica. En la presente investigación se evaluaron 24 pacientes provenientes del Departamento de Hepatología del Hospital Clínico Universitario, Universidad Central de Venezuela, con infección por VHC. 5 ml de saliva no estimulada fue tomada de cada paciente. ARN-VHC fue detectada por la técnica de Transcriptasa Reversa- Reacción en cadena de la Polimerasa (TR-RCP). En 29 por ciento, (7/24) pacientes VHC+, se observó la presencia de ARN-VHC en saliva. En este estudio, observamos la presencia de ARN-VHC en la saliva de pacientes con infección crónica por VHC. Es necesario realizar estudios epidemiológicos a gran escala, para clarificar el significado biológico de la presencia de este agente viral en la saliva, incluyendo la potencial vía de transmisión por la exposición con este fluido


Hepatitis C is a worldwide public health problem and its transmisión is clearly associated with the parenteral route, however, the virus has also been isolated from other body fluids, including saliva, although the relationship between HCV and oral pathology is not clearly understood. The aim of this study was to determine the presence of HCV-RNA in saliva from patients with chronic C hepatitis. In the present investigation 24 patients, attended at the Hepatology Department, at the the Clinical Hospital University, Central University of Venezuela, with HCV infection were evaluated . 5ml of unstimulated saliva were taken of each patient. Saliva HCV-RNA was detected by Polymerase Chain Reaction (PCR). 29 percent (7/24) of HCV+ patients showed HCV-RNA in saliva. In this study, we observed the presence of HCV-RNA in saliva of patients infected with HCV. Further large-scale epidemiological studies are required to clarify the clinical significance of HCV in the saliva, including the potencial for viral transmisión through exposure to these fluids


Assuntos
Feminino , Hepacivirus , Hepatite C Crônica , RNA , Reação em Cadeia da Polimerase/métodos , Saliva/citologia , Saliva/virologia
2.
Acta odontol. venez ; 45(2): 192-197, 2007. tab, graf
Artigo em Espanhol | LILACS | ID: lil-499569

RESUMO

El liquen plano es una enfermedad mucocutánea inflamatoria crónica que frecuentemente involucra la mucosa bucal. Recientes estudios han confirmado una asociación significativa entre el liquen plano bucal (LPB) y enfermedad hepática, en particular con la infección por Virus de la Hepatitis C (VHC). El objetivo del presente estudio fue evaluar la asociación del LPB en pacientes con infección por VHC. Se evaluaron 67 pacientes infectados por VHC detectados por anticuerpos anti-VHC mediante ensayo inmunoabsorbente ELISA (tercera generación), confirmado por trancriptasa reversa- reacción en cadena de la polimerasa (TR-RCP) VHC-ARN. Solo uno de los 67 pacientes positivos para VHC fue clínica e histológicamente positivo para LPB. En este trabajo concluimos que aunque se han reportado casos donde existe una asociación entre liquen plano bucal e infección por VHC, la asociación entre estas dos enfermedades no se observó en la población venezolana, debido posiblemente a que el origen geográfico y hábitos de los pacientes podría jugar un rol importante en la prevalencia de la infección por este virus y sus manifestaciones extrahepáticas, en pacientes con LPB.


Lichen planus is a chronic inflammatory mucocutaneous disease that frequently involves the oral mucosa. Recent studies have confirmed a significant association between oral lichen planus (OLP) and liver diseases, in particular with Hepatitis C virus (HCV) infection. The aim of this study was to evaluate the association of OLP in patients with HCV infection. We evaluated 67 patients with HCV infection detected for anti-HCV by immunosorbent assay ELISA (third generation) confirmed by reverse transcription polymerase chain reaction (RT-PCR) HCV-RNA Only one of 67 HCV positive patients was clinically and histologically positive for OLP. We concluded that although cases of oral lichen planus associated with hepatitis C virus (HCV) infection have been described, the association between the two diseases has not been established in the Venezuelan population, because the geographic origin of patients could play an important role in HCV prevalence in patients with OLP.


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Adulto , Pessoa de Meia-Idade , Hepacivirus/patogenicidade , Hepatite C/complicações , Líquen Plano Bucal/etiologia , Ensaio de Imunoadsorção Enzimática , Hepatite C/epidemiologia , Hepatite C/transmissão , Líquen Plano Bucal/epidemiologia , Reação em Cadeia da Polimerase/métodos , Interpretação Estatística de Dados , Venezuela/epidemiologia
3.
GEN ; 58(2): 102-103, abr.-jun. 2004. ilus
Artigo em Espanhol | LILACS | ID: lil-421170

RESUMO

Síndrome de Blue Rubber Bleb Nevus o Síndrome de Bean, es una entidad clínica caracterizada por hemangiomas cutáneos y tumores vasculares del tracto gastrointestinal. Se describen lesiones de localización extra intestinal. Representa una causa infrecuente de hemorragia digestiva. Se presenta el caso de un paciente masculino de 19 años de edad con hemorragia digestiva, lesiones cutáneas y endoscópicas características de este síndrome


Assuntos
Adulto , Masculino , Humanos , Hemorragia Gastrointestinal , Hemangioma , Gastroenterologia , Venezuela
4.
GEN ; 58(2): 104-105, abr.-jun. 2004. ilus
Artigo em Espanhol | LILACS | ID: lil-421171

RESUMO

El síndrome de Ogilvie o pseudobstrucción aguda colónica, es caracterizado por una dilatación aguda del colón, en ausencia de obstrucción mecánica, cuya etiología es desconocida y se asocia a pacientes con edad avanzada y patologías médicas o quirúrgicas previas. La recidiva después de tratamiento médico es del20-50 por ciento. Este caso es un paciente masculino de 63 años de edad, con síndrome epiléptico focal criptogenético y síndrome de Ogilvie, quien presento dilatación aguda colónica sin evidencia de obstrucción mecánica, con respuesta al tratamiento médico


Assuntos
Masculino , Idoso , Dor Abdominal , Epilepsias Parciais , Pseudo-Obstrução do Colo/diagnóstico , Pseudo-Obstrução do Colo/patologia , Gastroenterologia , Venezuela
5.
Arch. venez. farmacol. ter ; 22(1): 25-29, 2003. ilus, tab, graf
Artigo em Espanhol | LILACS | ID: lil-395992

RESUMO

La Colangitis Autoinmune es una enfermedad hepática de causa desconocida, con hallazgos clínicos, de laboratorio y cambios histológicos de colestasis. Algunos la consideran sinónimo de cirrosis biliar primaria con anticuerpos Antimitocondriales (AMA) negativos. Aún ni existe concenso en su definición como entidad individual. Sin embargo han sido publicados numerosos estudios con el objetivo de unificar criterios. Las pruebas de inmunohistoquímica, la determinación de la expresión de moléculas de histocompatibilidad y recientemente la identificación de anticuerpos contra la enzima anhidrasa carbónica, han facilitado la caracterización de la Colangitis Autoinmune como una enfermedad hepática autoinmune distinguible de las otras y no simplemente un subtipo de cirrosis biliar primaria con anticuerpos antimitiocondriales negativos. Se presenta la clínica, el diagnóstico, hallazgos colangiográficos e histológico y el manejo terapéutico de una paciente de 33 años con diagnóstico histológico de Colangitis Autoinmune


Assuntos
Humanos , Masculino , Feminino , Colangite , Cirrose Hepática Biliar/imunologia , Hepatite Autoimune , Gastroenterologia , Farmacologia , Venezuela
6.
Mem. Inst. Oswaldo Cruz ; 97(suppl.1): 153-159, Oct. 2002. ilus, tab
Artigo em Inglês | LILACS | ID: lil-325018

RESUMO

In endemic areas with low prevalence and low intensity of infection, the diagnosis of hepatic pathology due to the Schistosoma mansoni infection is very difficult. In order to establish the hepatic morbidity, a double-blind study was achieved in Venezuelan endemic areas, with one group of patients with schistosomiasis and the other one of non-infected people, that were evaluated clinically and by abdominal ultrasound using the Cairo classification. Schistosomiasis diagnosis was established based on parasitologic and serological tests. The increase of the hepatic size at midclavicular and midsternal lines (in hepatometry) and the hard liver consistency were the clinical parameters able to differentiate infected persons from non infected ones, as well as the presence of left lobe hepatomegaly detected by abdominal ultrasound. The periportal thickening, especially the mild form, was frequent in all age groups in both infected and uninfected patients. There was not correlation between the intensity of infection and ultrasound under the current circumstances. Our data suggest that in Venezuela, a low endemic area of transmission of schistosomiasis, the hepatic morbidity is mild and uncommon. The Cairo classification seems to overestimate the prevalence of periportal pathology. The specificity of the method must be improved, especially for the recognition of precocious pathology. Other causes of hepatopathies must be investigated


Assuntos
Animais , Humanos , Abdome , Hepatopatias Parasitárias , Esquistossomose mansoni , Estudos de Casos e Controles , Estudos Transversais , Método Duplo-Cego , Fezes , Hepatomegalia , Hepatopatias Parasitárias , Morbidade , Contagem de Ovos de Parasitas , Prevalência , Esquistossomose mansoni , Esplenopatias , Venezuela
7.
GEN ; 56(3): 151-156, jul.-sept. 2002. tab
Artigo em Espanhol | LILACS | ID: lil-395955

RESUMO

Demostrar las complicaciones de la Esfinterotomía Biliar Endoscópica con los diferentes tipos de corrientes y las complicaiciones más frecuetes asociadas con la Esfinterotomia Biliar Endoscópica. Estudiamos 141 paicientes a quienes se les realizó Esfinterotomía Biliar Endoscópica. Se usó duodenoscopios Fujinon serie 200, unidad ellectroquirúrgica Pawerite Valleylab y esfinterotomos de arco Wison CooK. Encontramos un total de 18 complicaciones (12,76 por ciento). La hemorragia constituyó el 4,96 por ciento, Pancreatitis 4,25 por ciento, perforación 2,12 por ciento, Colecistitis y muerte en el 0,71 por ciento. Se observó la diferencia estadísticamente significativa, con p<0,05 con el uso de corriente mixta sobre la de corte en cuanto a Pancreatitis (6 pacientes), mientras que en los casos de hemorragia (4 pacientes), y perforación (2 pacientes), la diferencia no fué estadísticamente significativa (p>0,05). Todos los casos de Pancreatitis fueron de tipo leve, la hemorragia fue leve en 5 casos y moderada en 2 casos, las perforaciones fueron severas en los 3 casos ameritando resolución quirúrgica, 1 paciente murió y en la primera autopsiase encontró un tumor que invadía vías biliares, vesícula y duodeno. Las complicaciones para el tipo de corriente corte fueron del 10,41 por ciento, mientras que en el grupo de corriente mixta fueron 14,60 por ciento. Se concluye que el tipo de corriente corte en la Esfinterotomía Endoscópica está asociado con menor frecuencia de Pancreatitis comparado con la corriente mixta


Assuntos
Humanos , Masculino , Feminino , Esfinterotomia Endoscópica , Gastroenterologia , Venezuela
8.
G E N ; 49(3): 189-95, 1995.
Artigo em Espanhol | MEDLINE | ID: mdl-8598255

RESUMO

To establish the risk factors to hepatitis C virus (HCV) infection, we studied 120 patients divided in 2 groups: A first group of 40 patients with HCV infection, 24 (60%) with past medical history of blood transfusion, 14 (35%) of them also had hemodialysis and 3 Kidney transplant. 10 patients (25%) had mayor surgery without transfusion, 3 had frequent visits to the dentist and 3 month baby whose mother was HCV positive. In 4 patients we found no risk factors. A second group of 80 patients who visit our clinic for the first time, 2 were found positive for HCV (1.6%). 13 of them had blood transfusion, one was HCV+ (OR: 5.5, P = 0.73). 41 had history of mayor surgery, one HCV+ (OR: 0.95, P = 1.000). The risk factors related to HCV infection in our population were blood transfusion, hemodialysis and mayor surgery. The use of EV drugs, tatoos, sexual behavior, interfamiliar or vertical transmission were not risk factor in our population.


Assuntos
Hepatite C/transmissão , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Hepatite C/etiologia , Hepatite C/prevenção & controle , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Fatores de Risco
10.
G E N ; 44(4): 343-8, 1990.
Artigo em Espanhol | MEDLINE | ID: mdl-1967087

RESUMO

The recent discovery of an antigenic component of the causative agent of Non-A, Non-B hepatitis, has led to the characterization of this virus--Hepatitis C Virus (HCV)--and to the identification of an antibody present in infected subjects (anti-HCV) detected by means of the C-100 antigen derived from a nonstructural region of the viral genome. Using a commercial Kit (Ortho Diagnostic Inc.), the incidence of anti-HCV antibody was studied in the Military Hospital "Dr. Carlos Arvelo" of Caracas, Venezuela with the following results: Health personnel (doctors, nurses, laboratory staff): 102 persons studied, 2 positives (1.96%); 16 patients in chronic hemodialysis: 6 positives (33%); 20 subjects with antibodies against HIV virus, confirmed by Western Blot: 7 positives (35.4%). Of 10 patients with Surface Antigen negative Chronic Hepatitis, 7 (70%) positive for anti-HCV, of 25 patients with cirrhosis: 12 positive (48%), 2 patients with hepatocarcinoma 1 positive (50%). There was also a high incidence of total anti-core antibodies in the patients studied. The results suggest that the hepatitis C virus could be playing an important role as a causative factor of liver diseases in our Country.


Assuntos
Pessoal de Saúde , Hepacivirus/imunologia , Anticorpos Anti-Hepatite/análise , Hepatopatias/imunologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Hepatocelular/imunologia , Doença Crônica , Feminino , Anticorpos Anti-HIV/análise , Hepatite C/imunologia , Humanos , Cirrose Hepática/imunologia , Neoplasias Hepáticas/imunologia , Masculino , Pessoa de Meia-Idade , Diálise Renal , Fatores de Risco
11.
G E N ; 44(3): 227-32, 1990.
Artigo em Espanhol | MEDLINE | ID: mdl-2152312

RESUMO

This paper reports a case of an histological non aggressive thymoma with myasthenic symptoms as the first clinical manifestation. Three years after its complete surgical resection liver metastases appeared without evidence of intrathoracic neoplastic disease. The extrathoracic metastases are uncommon and the thymomatous myasthenia gravis is present in 25 to 50% of cases. We reviewed the literature and analyzed its clinical pathological characteristics and therapeutics approach.


Assuntos
Neoplasias Hepáticas/secundário , Miastenia Gravis/etiologia , Timoma/complicações , Neoplasias do Timo/complicações , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Masculino , Mediastino/diagnóstico por imagem , Pessoa de Meia-Idade , Timoma/diagnóstico por imagem , Timoma/patologia , Timoma/cirurgia , Neoplasias do Timo/diagnóstico por imagem , Neoplasias do Timo/patologia , Neoplasias do Timo/cirurgia , Tomografia Computadorizada por Raios X , Ultrassonografia
12.
G E N ; 44(2): 141-5, 1990.
Artigo em Espanhol | MEDLINE | ID: mdl-2152268

RESUMO

The purpose of this work was to analyse the advantages and disadvantages of puncture-aspiration with fine needle, guided by ultrasonography, trying to determine its usefulness in our hospitals and its reliability in the diagnosis of intraabdominal lesions of different locations. 29 punctures were practiced on 19 patients, 9 women and 10 men of ages comprised between 34 and 94 years, with lesions in different organs of the abdominal cavity diagnosed by ultrasonography with real time equipment and lineal 3.5 and 5 MHz transducers. After cleaning and antisepsis a Chiba needle is introduced under ultrasonographic vision, up to the location of the lesion, the guide is removed and under a negative pressure, the sample is taken, which is later dried into the air and coloured using the May-Grünwald-Giemsa Technique. Only in one case it was not possible to obtain adequate material for the cytological study. There were 11 positive cases for malignity and 7 negative, one of which was a false negative. The sensibility of the method was of 91.6% with a specificity of 100% and a reliability of 89.4%. We definitely believe that the method is practical, very easy to carry out in our hospitals with a minimum amount of risk, and most of all, dependable to clarify certain diagnoses.


Assuntos
Neoplasias Abdominais/patologia , Biópsia por Agulha/métodos , Neoplasias Abdominais/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Reações Falso-Negativas , Reações Falso-Positivas , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Ultrassonografia
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