Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 20
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Minerva Gastroenterol Dietol ; 53(4): 311-9, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18043549

RESUMEN

AIM: In several studies, attention is needed to one specific complication, in particularly to hepatocellular carcinoma, which modifies the natural history of liver cirrhosis. Thus, we performed a retrospective cohort analysis to clarify which complications, alone or in combination, are predictive factors of mortality in patients with viral or alcoholic cirrhosis without hepatocellular carcinoma. METHODS: Case records of 255 patients with decompensated viral or alcoholic cirrhosis between January 1990 and December 2000 were retrospectively analyzed. Relevant clinical and laboratory parameters, and their relationship to mortality, were studied. RESULTS: The mean duration of follow-up period was 29 months in which 178 patients (69.8%) died and 77 (31.8%) survived. None of the patients underwent liver transplantation. The cumulative mortality rate of patients with complicated cirrhosis was 38.8% after 1 year, 51.7% after 2 years, 61.1% after 3 years and 65.1% after 8 years. A multivariate Cox's model identified the following variables as significant: age (P=0.001), gastrointestinal bleeding (GB)-ascites combination (P=0.000), encephalopathy-GB-ascites (P=0.028), hepatorenal syndrome (HRS) (P=0.000), GB-spontaneous bacterial peritonitis (SBP) (P=0.001), alkaline phosphatase (ALP) (P=0.004) and the Child-Pugh score (P=0.000). CONCLUSION: The mortality in a group of patients with alcoholic cirrhosis is longer than in those with viral cirrhosis . Moreover, ascites in combination with other complications, HRS and hemorrage-SBP association are independent predictors of mortality in patients with complicated liver cirrhosis.


Asunto(s)
Cirrosis Hepática Alcohólica/mortalidad , Cirrosis Hepática/mortalidad , Cirrosis Hepática/virología , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Estudios de Seguimiento , Hepatitis B/complicaciones , Hepatitis B/diagnóstico , Hepatitis C/complicaciones , Hepatitis C/diagnóstico , Humanos , Estimación de Kaplan-Meier , Cirrosis Hepática/complicaciones , Cirrosis Hepática/diagnóstico , Cirrosis Hepática/etiología , Cirrosis Hepática Alcohólica/complicaciones , Cirrosis Hepática Alcohólica/diagnóstico , Persona de Mediana Edad , Análisis Multivariante , Pronóstico , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Factores de Riesgo , Factores de Tiempo
2.
Hepatogastroenterology ; 46(30): 3229-33, 1999.
Artículo en Inglés | MEDLINE | ID: mdl-10626191

RESUMEN

BACKGROUND/AIMS: We retrospectively evaluated the long-term efficacy of interferon retreatment in patients with chronic hepatitis C, who did not have a sustained response to a 1st cycle of treatment. METHODOLOGY: Sixty-six patients, 43 non-responder and 23 relapser to alpha interferon treatment, were retreated with alpha interferon, 6 MU thrice weekly for 12 months. Response was defined as negative HCV viremia. Responders underwent long-term follow-up (27-43 months). RESULTS: The response rates were 14% and 35% at the end of retreatment, 7% and 22% at 6 months, and 2% and 13% at long-term follow-up in non-responders and relapsers respectively. The outcome of retreatment was not statistically influenced by age, cirrhosis, viral genotype, dose and duration of previous treatment. CONCLUSIONS: Interferon retreatment, for sustained viral eradication, is not effective in non-responders and useful in few relapsers. Whereas, retreatment could prove effective in slowing down the activity of the disease and reducing the incidence of hepatocarcinoma, since some relapses occur late during the follow-up. Therefore, retreatment should be confined to relapsers with contraindications to new more efficient therapeutic strategies.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis C Crónica/terapia , Interferón Tipo I/uso terapéutico , Adulto , Anciano , Alanina Transaminasa/sangre , Femenino , Hepacivirus/genética , Hepacivirus/inmunología , Anticuerpos contra la Hepatitis C/análisis , Hepatitis C Crónica/enzimología , Hepatitis C Crónica/virología , Humanos , Masculino , Persona de Mediana Edad , ARN Viral/análisis , Proteínas Recombinantes , Recurrencia , Estudios Retrospectivos , Resultado del Tratamiento , Viremia/terapia , Viremia/virología
3.
Hepatogastroenterology ; 44(17): 1295-301, 1997.
Artículo en Inglés | MEDLINE | ID: mdl-9356842

RESUMEN

BACKGROUND/AIMS: Enhanced hepatocellular display of class I HLA antigens together with rising serum beta-2-microglobulin (a subunit of class I HLA molecule) and transaminases is reported in patients with chronic hepatitis B during treatment with interferon as an index of immune lysis of virus infected cells. METHODOLOGY: We studied class I HLA antigens and beta-2-microglobulin display in the livers of 23 patients with chronic hepatitis C before and after a 12 month treatment with recombinant alpha interferon. Beta-2-microglobulin serum values were monitored. In all the patients before treatment, class I HLA antigens and beta-2-microglobulin were diffusely displayed in the bile duct epithelium, in the sinusoidal lining cells, in approximately 50% of the inflammatory cells and in the hepatocyte membrane with marked staining in the areas of periportal and lobular necrosis. RESULTS: At the end of the treatment, class I HLA antigens and beta-2-microglobulin were no longer or only faintly detectable in the hepatocytes of 12 patients who showed clinical and histological improvement. The immunohistochemical pattern was unchanged in the 11 patients who did not respond to the therapy. Baseline serum beta-2-microglobulin values were high in all the patients and decreased significantly only in the group of responders. No peaks of transaminases were registered. CONCLUSIONS: The disappearance or reduction of HLA hepatocellular display without acute increase of serum beta-2-microglobulin values and transaminases during successful treatment with interferon in chronic hepatitis C suggests a clearance of the virus due to direct antiviral rather than immunologically mediated mechanism.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis C Crónica/inmunología , Hepatitis C Crónica/terapia , Antígenos de Histocompatibilidad Clase I/análisis , Interferón-alfa/uso terapéutico , Hígado/inmunología , Microglobulina beta-2/análisis , Alanina Transaminasa/sangre , Aspartato Aminotransferasas/sangre , Femenino , Humanos , Interferón alfa-2 , Masculino , Persona de Mediana Edad , Proteínas Recombinantes , Factores de Tiempo
4.
Hepatogastroenterology ; 46(28): 2447-50, 1999.
Artículo en Inglés | MEDLINE | ID: mdl-10522017

RESUMEN

BACKGROUND/AIMS: The impact of the treatment with interferon (IFN) on the natural history of chronic hepatitis C is not defined. The aim of this study was to evaluate the long term effect of the treatment in patients with chronic hepatitis C. METHODOLOGY: In 31 patients with chronic hepatitis C (9 with cirrhosis) consecutively treated with recombinant alpha 2a interferon (r alpha 2a IFN), the evolution of the disease at 10 years from the therapy was evaluated by means of upper endoscopy, liver ultrasonography (US), liver function tests and hepatitis C virus (HCV) viremia. RESULTS: Among 10/31 patients previously classified as responders, only 1 has signs of evolution to cirrhosis; HCV-RNA is still present in 2. Among 21 non-responder patients, 5 developed hepatocarcinoma (HCC) and 4 died during the follow-up; HCV-RNA is present in all the patients still alive. The 6 patients already cirrhotic when treated have clinical signs of progression to Child class B and C. The biochemical, ultrasonographical and endoscopical evaluation shows onset of cirrhosis in 7 of the others. CONCLUSIONS: Patients with chronic hepatitis C who respond to treatment with interferon have good outcome and rare evolution to cirrhosis. The treatment does not seem to influence the natural history of the disease in non-responders.


Asunto(s)
Hepatitis C Crónica/tratamiento farmacológico , Interferón-alfa/uso terapéutico , Adulto , Femenino , Estudios de Seguimiento , Hepatitis C Crónica/complicaciones , Humanos , Interferón alfa-2 , Cirrosis Hepática/etiología , Masculino , Persona de Mediana Edad , Proteínas Recombinantes
5.
Minerva Med ; 76(41): 1907-10, 1985 Oct 27.
Artículo en Italiano | MEDLINE | ID: mdl-4058786

RESUMEN

Anti-HBV core IgM antibodies (anti-HBc IgM) were tested by RIA in the sera from 269 patients with acute viral hepatitis (AVH), from 39 patients with chronic HBSAg+ hepatitis (CH) at various stage of evolution, in 41 asymptomatic HBsAg carriers and in 30 healthy volunteers. Anti-HBc IgM were found in 100/108 HBsAg+ AVH, in 6/161 HBsAg--AVH, in 9/39 with CH and only 1 asymptomatic HBsAg carrier. Among the chronic patients with anti-HBc IgM, 3 were HBeAg+ and 6 were anti-HBe+. The test of anti-HBc IgM results useful in the early aetiological diagnosis of acute hepatitis since it is always positive in HBV acute hepatitis even in the subjects who early seroconvert to anti-HBs; the absence of anti-HBc IgM in the HBsAg+ acute hepatitis suggests other overinfecting agents. The presence of anti-HBc IgM in CH seems not to be related to an active viral replication.


Asunto(s)
Anticuerpos contra la Hepatitis B/análisis , Hepatitis Viral Humana/inmunología , Inmunoglobulina M/análisis , Enfermedad Aguda , Adolescente , Adulto , Anciano , Niño , Preescolar , Enfermedad Crónica , Humanos , Masculino , Persona de Mediana Edad , Radioinmunoensayo
6.
Clin Ter ; 155(11-12): 557-64, 2004.
Artículo en Italiano | MEDLINE | ID: mdl-15861972

RESUMEN

Cystic fibrosis is a systemic disease whose prognosis has improved thanks multidisciplinary researches and above all better knowledges and care of nutritional problems. It is important, for a good therapy, considering each case singularly, with a differentiated and individualized dietetic approach, which focuses on its specific needs and features. A "step by step" process could be useful to manage patient suffering from cystic fibrosis; it is based on 5 different patterns of possible nutritional dietetic methods. The development of the nutritional techniques of treatment for this kind of desease both with the individualized and differentiated approach have led to improve prognosis and especially the patient's standard of life.


Asunto(s)
Fibrosis Quística/dietoterapia , Fibrosis Quística/complicaciones , Humanos
10.
Arch Sci Med (Torino) ; 139(2): 247-50, 1982.
Artículo en Italiano | MEDLINE | ID: mdl-6753797

RESUMEN

The results of treatment carried out with salbutamol, erythromycin and fluidifiers in 20 children with whooping cough are reported. Results in all cases were much superior to those that have been obtained up to the present with the use of antibiotics alone or associated with hyperimmune gammaglobulins and/or sedatives. A speedier and more complete resolution of symptomatology was observed in the group where treatment was instituted earlier.


Asunto(s)
Albuterol/administración & dosificación , Eritromicina/administración & dosificación , Expectorantes/administración & dosificación , Terpenos/administración & dosificación , Tos Ferina/tratamiento farmacológico , Administración Oral , Preescolar , Ensayos Clínicos como Asunto , Quimioterapia Combinada , Humanos , Lactante
11.
Boll Soc Ital Biol Sper ; 56(20): 2123-8, 1980 Oct 30.
Artículo en Italiano | MEDLINE | ID: mdl-7459125

RESUMEN

HBeAg and anti-HBe were tested by RIA (Abbott Kits) in 53 patients (38 HBsAg +) with acute viral hepatitis (AVH), in 27 patients (5 HBsAg +) with chronic active hepatitis (CAH), in 54 (8 HBsAg +) with cirrhosis, in 32 (17 HBsAg +) undergoing haemodialysis, in 6 HBsAg carriers and in 45 controls. Most of the patients with HBsAg + AVH were HBeAg + in the first week and showed seroconversion to anti-HBe within the fourth week of the illness. Two from the four patients still HBeAg + in the fourth week seroconverted later on and clinically recovered, one is still HBsAg +/HBeAg + in the seventh week and one developed CAH HBsAg +/HBeAg +. High prevalence of HBeAg was found in the haemodialysed (94%) and in the patients with CAH (80%) while anti-HBe was more frequent in the HBsAg carriers (100%) and in the cirrhotics (62,5%). Among the patients HBsAg-, none was HBeAg + while 18% with CAH, 21,7% with cirrhosis, 26,6% of the haemodialysed and 4% of the controls were anti-HBe +. Our data, relating to AVH, are similar to those referred in the literature, but show conversely high prevalence of anti-HBe in CAH and in cirrhosis.


Asunto(s)
Anticuerpos Antivirales/análisis , Anticuerpos contra la Hepatitis B/análisis , Antígenos de la Hepatitis B/análisis , Antígenos e de la Hepatitis B/análisis , Hepatopatías/inmunología , Enfermedad Aguda , Portador Sano/inmunología , Enfermedad Crónica , Hepatitis/inmunología , Hepatitis Viral Humana/inmunología , Humanos , Cirrosis Hepática/inmunología , Radioinmunoensayo , Diálisis Renal , Factores de Tiempo
12.
Boll Soc Ital Biol Sper ; 56(13): 1360-6, 1980 Jul 15.
Artículo en Italiano | MEDLINE | ID: mdl-7448030

RESUMEN

The prevalence of the anti-HBc antibodies was studied in 54 patients with chronic liver disease and in a group of controls pair-matches. The meaning of the anti-HBc antibodies titer in the patients HBsAg negative is discussed. From our data, obtained by Radioimmunoassay, anti-HBc titers I:I000 seem to indicate an ongoing or recent viral replication, being probative, even in the absence of the HBsAg marker, for the viral etiology.


Asunto(s)
Anticuerpos contra la Hepatitis B/análisis , Hepatopatías/inmunología , Adolescente , Adulto , Anciano , Enfermedad Crónica , Femenino , Antígenos de Superficie de la Hepatitis B/inmunología , Humanos , Cirrosis Hepática/inmunología , Masculino , Persona de Mediana Edad , Radioinmunoensayo
13.
Echocardiography ; 18(7): 613-5, 2001 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-11737973

RESUMEN

Echinococcosis is a parasitic disease that usually involves lungs and liver. Occasionally, it localizes in the heart (less than 2% of cases). We present a case of an adult patient with cardiac echinococcosis complicated by ventricular tachycardia. The diagnosis, based on transthoracic two-dimensional echocardiography, magnetic resonance imaging (MRI), and computerized tomography (CT), was confirmed by surgery.


Asunto(s)
Diagnóstico por Imagen/métodos , Equinococosis/complicaciones , Equinococosis/diagnóstico , Taquicardia Ventricular/complicaciones , Taquicardia Ventricular/diagnóstico , Adulto , Equinococosis/cirugía , Ecocardiografía/métodos , Humanos , Imagen por Resonancia Magnética/métodos , Masculino , Sensibilidad y Especificidad , Tomografía Computarizada por Rayos X/métodos
14.
Eur J Clin Invest ; 21(6): 586-91, 1991 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-1723384

RESUMEN

Viral infection may play a role in alcoholic liver disease with histological features of chronic active hepatitis (CAH). Human leucocyte antigen (HLA) hepatocellular display is supposed to allow HLA-restricted T-lymphocyte cytotoxicity in chronic viral hepatitis. We studied the presence of serum anti-hepatitis C virus (HCV) antibodies, the hepatic HLA display and the composition of the mononuclear cell infiltrate in 16 patients with alcoholic liver disease and histological features of CAH and in 11 patients with alcohol-related degenerative changes. All patients were negative for hepatitis B virus (HBV) markers. Anti-HCV were tested by microplate ELISA. Class I HLA A, B, class II HLA DR, lymphocytes pan T, T helper/inducer, T suppressor/cytotoxic, B, and K NK cells were stained on liver cryostat sections by monoclonal antibodies and double indirect immunoperoxidase. Anti-HCV were present in all the patients with features of CAH and absent in those with only degenerative changes. In livers with features of CAH the mononuclear cell infiltrate consisted largely of T lymphocytes with marked prevalence of suppressor/cytotoxic cells in periportal and lobular areas. K NK cells were rare. Class I HLA, diffusely displayed on bile duct epithelium and on sinusoidal cells, also appeared on liver cells in the areas of periportal and lobular necrosis, namely on the hepatocytes in close contact with suppressor/cytotoxic T cells. In livers with only degenerative changes class I HLA were diffusely displayed on bile duct epithelium and on sinusoidal cells but absent on the hepatocytes. In all the specimens HLA DR antigens were expressed on sinusoidal and inflammatory cells.(ABSTRACT TRUNCATED AT 250 WORDS)


Asunto(s)
Antígenos HLA , Hepatitis C/complicaciones , Hepatopatías Alcohólicas/etiología , Adulto , Anciano , Femenino , Hepacivirus/inmunología , Anticuerpos Antihepatitis/sangre , Anticuerpos contra la Hepatitis C , Hepatitis Crónica/complicaciones , Humanos , Leucocitos Mononucleares/inmunología , Leucocitos Mononucleares/patología , Hígado/inmunología , Hígado/patología , Hepatopatías Alcohólicas/inmunología , Hepatopatías Alcohólicas/patología , Masculino , Persona de Mediana Edad , Linfocitos T Citotóxicos/inmunología , Linfocitos T Citotóxicos/patología
15.
Eur J Epidemiol ; 3(4): 386-9, 1987 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-3691748

RESUMEN

Sera from 619 HBsAg+ subjects living in eastern Sicily, consecutively collected from 1975-1985, were tested for markers of delta virus (HDV) infection: delta antigen (HDAg), antibodies to delta (anti-HDIg), and also for antibodies to HBcore of IgM type (anti-HBcIgM) and for the system HBe-anti-HBe. The subjects included 210 asymptomatic carriers, 238 patients with acute hepatitis and 171 patients with chronic liver disease. HDAg was not found in any of the samples. Anti-HD was found in 28/171 (16.3%) patients with chronic liver disease, in 13/210 (6%) asymptomatic HBsAg carriers and in 13/238 (5.4%) patients with acute hepatitis. None of our patients were drug addicts. One had a history of blood transfusion, and nine came from the same family unit. The prevalence of HDV infection in eastern Sicily is lower than in other areas of Sicily possibly because of the lower percentage of HBsAg carriers in the local population. Parenteral transmission of HDV does not seem to play a major role in our area, while the familial clustering suggests close body contact as an important way of spread.


Asunto(s)
Hepatitis D/epidemiología , Adolescente , Adulto , Anciano , Antígenos Virales/análisis , Portador Sano/inmunología , Femenino , Hepatitis/complicaciones , Anticuerpos Antihepatitis/análisis , Hepatitis D/complicaciones , Virus de la Hepatitis Delta/inmunología , Antígenos de Hepatitis delta , Humanos , Hepatopatías/complicaciones , Masculino , Persona de Mediana Edad , Sicilia
16.
Hepatology ; 22(2): 389-94, 1995 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-7635405

RESUMEN

Intrahepatic lymphocytic aggregates are observed in chronic hepatitis C as well as in autoimmune chronic hepatitis. Autoantibodies and autoimmune manifestations may occur in hepatitis C. It has been suggested that the lymphocytic aggregates play a role in the liver injury of chronic hepatitis C by an immune-mediated mechanism. We studied the occurrence of intrahepatic lymphocytic aggregates and of autoantibodies in a consecutive series of 128 patients with chronic hepatitis C. For the phenotypic characterization of the lymphocytic aggregates cryostat sections and microwaved paraffin embedded sections were immunostained with monoclonal antibodies directed against T cell subsets, B cells, killer/natural killer cells, follicular dendritic cells, and macrophages. Autoantibodies were tested by immunofluorescence (antinuclear, anti-smooth muscle, antimitochondrial) and by enzyme-linked immunosorbent assay (anti-soluble liver antigen, anti-liver/kidney microsome, anti-human receptor for asialoglycoprotein). Focal lymphocytic aggregates in portal tracts were observed in 76 of 128 (59%) patients. The cellular composition of the aggregates was constant: a core of B cells mixed with many T helper/inducer lymphocytes, and an outer ring was prominently formed by T suppressor/cytotoxic lymphocytes. A germinal center was rarely identifiable. The presence of lymphocytic aggregates was inversely correlated with the degree of fibrosis. Lymphocytic aggregates appeared more frequently in chronic persistent and chronic active hepatitis in comparison with cirrhosis and in the presence of bile duct damage. No correlation was found between lymphocytic aggregates and autoantibodies or other markers of autoimmunity. The lymphocytic aggregates are frequent in chronic hepatitis C. Their cellular composition is similar to that of primary lymphoid follicles in lymph nodes. Their presence does not seem to be correlated with features of autoimmunity.


Asunto(s)
Autoinmunidad , Hepatitis C/inmunología , Linfocitos/patología , Adulto , Anciano , Autoanticuerpos/sangre , Biomarcadores , Agregación Celular , Enfermedad Crónica , Femenino , Hepatitis C/patología , Humanos , Inmunohistoquímica , Recuento de Linfocitos , Subgrupos Linfocitarios , Linfocitos/inmunología , Masculino , Persona de Mediana Edad
17.
Infection ; 18(5): 277-9, 1990.
Artículo en Inglés | MEDLINE | ID: mdl-2177452

RESUMEN

The prevalence of anti-HCV, anti-HDV and of HBV markers has been investigated in a series of 209 consecutive patients (age 18-74 years) with chronic liver disease. Among 155 HBsAg negative patients (53 chronic hepatitis cases and 102 cirrhosis cases), anti-HCV were found in 69% of the cases. 67% of the 155 patients also carried anti-HBc, with no difference between patients positive or negative for anti-HCV. Among the 54 HBsAg positive patients, 10 (18.5%) also had anti-HCV, 22 (40.7%) were anti-HDV positive and 12 (22.2%) had serum HBV-DNA. One patient had concomitant anti-HDV and anti-HCV and another presented anti-HCV and serum HBV-DNA. 21/54 patients had liver cirrhosis on presentation and among these 17 (81%) were anti-HCV and/or anti-HDV positive. On the whole, 123/209 patients had liver cirrhosis on presentation and in 107 of them HCV infection may have played a role.


Asunto(s)
Hepatitis B/complicaciones , Hepatitis C/complicaciones , Hepatitis D/complicaciones , Cirrosis Hepática/complicaciones , Adulto , Anciano , Enfermedad Crónica , Hepacivirus/inmunología , Anticuerpos Antihepatitis/sangre , Hepatitis B/epidemiología , Antígenos de Superficie de la Hepatitis B/análisis , Hepatitis C/epidemiología , Hepatitis D/epidemiología , Humanos , Persona de Mediana Edad , Prevalencia
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA