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1.
Scand J Gastroenterol ; 47(10): 1129-40, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-22834987

RESUMEN

BACKGROUND: Spontaneous bacterial peritonitis (SBP) is a serious complication in cirrhotic patients. Gram (-) (E. coli, Klebsiella pneumoniae), and Gram (+) (Streptococci, Staphylococci) bacteria are most frequently cultured from patients'ascites. Listeria monocytogenes (Lm) is scarcely reported as a causative agent. OBJECTIVE: Our objective is to describe Lm peritonitis as a clinical entity, including its presentation, clinical features, treatment, and the potential factors that might affect survival outcome. DATA SOURCES: MEDLINE, Scholar.Google, Scopus databases, including English, Spanish, French, and German language papers published between 1966 and June 2011, and reference lists. DATA EXTRACTION: investigators abstracted details about medical history, disease presentation, laboratory data, treatment and outcome. DATA SYNTHESIS: One-hundred and twenty-eight cases with known survival outcome--eighty-six cirrhotics, seventeen individuals undergoing continuous ambulatory peritoneal dialysis and another twenty-five with other or no underline condition were reviewed. An additional number of twenty-five cases with unknown outcome were searched in Listeria studies published from 1990 to 2009 and were only used for calculating worldwide distribution. CONCLUSION: Cirrhotics, mostly alcoholics, presented with fever and abdominal pain. Those who succumbed had significantly higher peripheral WBC count (15622 vs. 8155 cells/mm(3), p = 0.01) and (%) polymorphonuclear cells in differential count (83.3 vs. 71%, p = 0.001). Higher mortality was experienced in those with comorbidities, and those who presented with encephalopathy. Lower mortality was experienced in patients on continuous ambulatory peritoneal dialysis. Ascites was neutrocytic in 86% of the samples. In the sum of the cases mortality was 27.3%, with significantly highest rates in the elderly, in patients with bacteremia, immunosuppression, hematological malignancies, and lowest rates in those who presented with abdominal pain and in diabetics (type I or II). The latter observation was surprising and could be considered a single fortuitous fact. Initial appropriate treatment was associated with significantly better outcome (p = 0.002) than inappropriate; combination therapy with an aminoglycoside was superior to monotherapy (p = 0.038).


Asunto(s)
Antibacterianos/uso terapéutico , Listeria monocytogenes/aislamiento & purificación , Cirrosis Hepática/complicaciones , Diálisis Peritoneal Ambulatoria Continua , Peritonitis , Adulto , Factores de Edad , Anciano , Alcoholismo/complicaciones , Aminoglicósidos/uso terapéutico , Ascitis/etiología , Ascitis/microbiología , Ascitis/fisiopatología , Ascitis/terapia , Comorbilidad , Quimioterapia Combinada , Femenino , Encefalopatía Hepática/complicaciones , Humanos , Masculino , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Diálisis Peritoneal Ambulatoria Continua/métodos , Diálisis Peritoneal Ambulatoria Continua/estadística & datos numéricos , Peritonitis/epidemiología , Peritonitis/etiología , Peritonitis/microbiología , Peritonitis/fisiopatología , Peritonitis/terapia , Factores de Riesgo , Análisis de Supervivencia , Resultado del Tratamiento
2.
Diagn Microbiol Infect Dis ; 69(2): 210-2, 2011 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21251568

RESUMEN

A 37-y-old white male presented with high fever, constitutional symptoms, mild meningeal and pulmonary involvement. Laboratory investigation revealed thrombocytopenia and excessive prolongation of coagulation times (International normalized ratio-INR- up to 6) requiring transfusion with 14 units of fresh frozen plasma. Serology established acute Coxiella burnetti infection. Patient recovered on levofloxacin.


Asunto(s)
Coagulación Intravascular Diseminada/diagnóstico , Coagulación Intravascular Diseminada/etiología , Fiebre Q/complicaciones , Fiebre Q/diagnóstico , Adulto , Coagulación Intravascular Diseminada/terapia , Humanos , Masculino , Fiebre Q/terapia , Resultado del Tratamiento
3.
Am J Health Syst Pharm ; 67(7): 531-4, 2010 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-20237380

RESUMEN

PURPOSE: A case of a patient who developed thrombotic thrombocytopenic purpura (TTP) after consuming a weight-loss product containing green tea is reported. SUMMARY: A 38-year-old, 68-kg Caucasian woman arrived at the emergency department with a one-week history of malaise, fatigue, and petechiae of the skin. She had no symptoms of infection and denied illegal drug use. Her medical history included hypothyroidism, for which she was treated with levothyroxine 150 microg daily for the past four years. She reported that she had been using a green tea preparation for the two months before admission to lose body weight. The daily preparation contained 200 mg of green tea extract 5:1, equivalent to 1 g of natural green tea. On clinical examination, the patient appeared acutely ill and was afebrile, with pallor, petechiae, and purpura of the extremities. Laboratory test results at the time of admission revealed that the patient had anemia and marked thrombocytopenia. A peripheral blood smear demonstrated a feature of microangiopathic hemolytic anemia. Immunoglobulin G autoantibodies against ADAM metallopeptidase with thrombospondin type 1 motif, 13 were detected. On hospital day 3, the patient appeared confused and exhibited aphasia that was initially transient but then recurrent. Brain computerized tomography did not exhibit focal pathology. Over the next few days, her neurologic symptoms subsided and her platelet count and hematocrit value gradually increased. Plasmapheresis was performed (12 procedures). Corticosteroid treatment was also initiated. After 20 days of hospitalization, the patient was discharged. CONCLUSION: A 38-year-old woman developed TTP after consuming a weight-loss product containing green tea extract for two months.


Asunto(s)
Púrpura Trombocitopénica Trombótica/inducido químicamente , Té/efectos adversos , Corticoesteroides/uso terapéutico , Adulto , Femenino , Hematócrito , Humanos , Hipotiroidismo/complicaciones , Hipotiroidismo/tratamiento farmacológico , Plasmaféresis , Púrpura/etiología , Púrpura/patología , Púrpura Trombocitopénica Trombótica/patología , Tiroxina/uso terapéutico , Tomografía Computarizada por Rayos X , Pérdida de Peso
6.
South Med J ; 101(7): 756-8, 2008 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-18580728

RESUMEN

The case of a woman with insulin-dependent diabetes mellitus, autoimmune thyroiditis, atrophic gastritis, pernicious anemia, and immunologic thrombocytopenic purpura consisting of autoimmune polyglandular syndrome type 3 associated with a history of gonadal failure is reported. Hepatitis C viral infection added xerophthalmia, lymphocytic sialadenitis, and exacerbation of idiopathic thrombocytopenic purpura. This unique disease constellation was complicated with splenic marginal zone lymphoma and gastric carcinoids. A lung infection, initially treated on an outpatient basis, proved fatal to the patient.


Asunto(s)
Hepatitis C Crónica/complicaciones , Linfoma/complicaciones , Síndrome Carcinoide Maligno/complicaciones , Poliendocrinopatías Autoinmunes/complicaciones , Neoplasias del Bazo/complicaciones , Resultado Fatal , Femenino , Fiebre de Origen Desconocido/complicaciones , Humanos , Persona de Mediana Edad
7.
Eur J Intern Med ; 19(4): 266-70, 2008 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-18471675

RESUMEN

BACKGROUND: The aim of this study was to investigate the effect of patient's age on the impact of typically proposed predictors of sustained virological response (SVR) in treatment-naïve, high-pretreatment viral load (>700.000 IU/ml), chronic hepatitis C (CHC) patients treated under real-life conditions in Greece. METHODS: We retrospectively analyzed 185 CHC patients (14.4% cirrhotics) who had been treated with weight-adjusted dosing (1.5 microg/kg per week) of pegylated interferon-a2b (PEG) plus genotype-based ribavirin (RIB) for 24 or 48 weeks of treatment, based on viral genotype. SVR was confirmed by undetectable serum HCV-RNA 6 months after the end of treatment. RESULTS: Overall, 68.5% of patients exhibited SVR and 31.5% were non-responders (non-SVRs). Among the non-SVRs, 71.4% were infected with HCV genotype-1. Importantly, 71.4% of genotype 4-infected treated patients exhibited SVR. In the multivariate analyses, only the early histological stage of liver disease (p=0.015) and the presence of genotype non-1 infection (p=0.003) were independent predictors of SVR. For patients younger than 35 years, none of the baseline parameters and neither viral genotype (p=0.284) nor the stage of liver disease (p=0.351) was an independent predictor of non-SVR, whereas for patients between 35 and 55, only the presence of genotype-1 infection independently predicted non-SVR (p=0.008). For older patients (>55 years), only the histological stage of liver disease (p=0.047) and not the viral genotype (p=0.275) independently predicted non-SVR. CONCLUSIONS: The impact of the typical predictors of SVR, such as viral genotype and liver histopathology, is modified according to patient's age in currently approved combination treatment.


Asunto(s)
Antivirales/administración & dosificación , Hepatitis C Crónica/tratamiento farmacológico , Interferón-alfa/administración & dosificación , Hígado/patología , Polietilenglicoles/administración & dosificación , Ribavirina/administración & dosificación , Adulto , Factores de Edad , Anciano , Biopsia con Aguja , Femenino , Predicción , Genotipo , Grecia , Humanos , Interferón alfa-2 , Hígado/virología , Masculino , Persona de Mediana Edad , Proteínas Recombinantes , Estudios Retrospectivos , Resultado del Tratamiento , Carga Viral
8.
Environ Health Perspect ; 115(10): 1479-81, 2007 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-17938739

RESUMEN

CONTEXT: Quizalofop-p-ethyl is an often applied, slightly toxic herbicide for which no severe toxicity has been reported in humans. CASE PRESENTATION: We present the case of a farmer exposed to quizalofop-p-ethyl who presented with obstructive cholestasis. A complete workup disclosed no other cause of liver pathology, but liver biopsy established drug-induced hepatotoxicity. The patient was treated with ursodeoxycholic acid and prednisolone, and was recovered fully 70 days after his exposure to the herbicide. The patient was followed for the next 9 months. CONCLUSION: Quizalofop-p-ethyl can induce a mixed cholestatic/hepatocellular liver injury. We discuss possible mechanisms implicated in liver injury after exposure to quizalofop-p-ethyl. RELEVANCE TO CLINICAL OR PROFESSIONAL PRACTICE: In patients presenting with mixed cholestatic/ hepatocellular liver injury, occupational exposure to quizalofop-p-ethyl in the course of agricultural use should be investigated.


Asunto(s)
Enfermedad Hepática Inducida por Sustancias y Drogas/patología , Colestasis Intrahepática/inducido químicamente , Herbicidas/toxicidad , Propionatos/toxicidad , Quinoxalinas/toxicidad , Anciano , Antiinflamatorios/uso terapéutico , Ácidos y Sales Biliares/uso terapéutico , Enfermedad Hepática Inducida por Sustancias y Drogas/tratamiento farmacológico , Colestasis Intrahepática/tratamiento farmacológico , Exposición a Riesgos Ambientales , Humanos , Masculino , Prednisolona/uso terapéutico , Ácido Ursodesoxicólico/uso terapéutico
10.
Scand J Infect Dis ; 39(1): 90-3, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17366023

RESUMEN

We present an unusual onset of meningoencephalitis due to VZV reactivation, with increased intrathecal production of IgG VZV antibodies and negative PCR, in a young, immunocompetent adult. Herpes zoster erupted 5 d later. Rare complication of VZV-related rhabdomyolysis occurred, with subsequent ARF, in combination with acyclovir and ceftriaxone. The patient recovered fully and remained healthy.


Asunto(s)
Lesión Renal Aguda/virología , Encefalitis por Varicela Zóster/complicaciones , Herpesvirus Humano 3/patogenicidad , Meningoencefalitis/complicaciones , Rabdomiólisis/virología , Adulto , Encefalitis por Varicela Zóster/líquido cefalorraquídeo , Encefalitis por Varicela Zóster/inmunología , Herpesvirus Humano 3/inmunología , Humanos , Inmunocompetencia , Masculino , Meningoencefalitis/líquido cefalorraquídeo , Meningoencefalitis/inmunología
11.
Indian J Gastroenterol ; 26(5): 209-13, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-18227568

RESUMEN

OBJECTIVE: To evaluate the effect of shortened duration of pegylated interferon (PEG-IFN) and ribavirin (RIB) treatment on sustained virological response (SVR) rates in treatment-naomicronve patients with chronic hepatitis due to genotype 2 or 3 hepatitis C virus (HCV) infection and high pre-treatment viral load (>800,000 IU/mL). METHODS: Records of 142 patients with chronic hepatitis C (22 with cirrhosis) who had been treated with PEG-IFN and RIB for 24 weeks (Group A, n=88), both drugs for 12-16 weeks (Group B, n=39), or with PEG-IFN for 12-16 weeks and RIB for 24 weeks (Group C, n=15), were analyzed retrospectively. RESULTS: Overall, 81.7% of patients had SVR (Group A: 88.6%, Group B: 69.2% and Group C: 73.3%, p=0.02). Failure to achieve SVR was significantly related to treatment group (p=0.026 for Group B and p=0.002 for Group C, versus Group A), older age (p=0.023), higher liver biopsy stage (p=0.001) and presence of cirrhosis (p< 0.0001). In patients without cirrhosis, only the treatment group (p=0.018 for Group B and p=0.002 for Group C, compared to Group A) independently predicted failure to achieve SVR. CONCLUSION: Shorter duration of PEG-IFN treatment (12-16 weeks) adversely affected the SVR rate in patients with genotype 2 or 3 HCV infection. However, increasing the duration of RIB administration (12-16 weeks versus 24 weeks) in such patients did not have any beneficial effect on SVR in patients receiving short-duration PEG-IFN.


Asunto(s)
Antivirales/administración & dosificación , Hepacivirus/genética , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/genética , Interferón-alfa/administración & dosificación , Ribavirina/administración & dosificación , Adulto , Anciano , Esquema de Medicación , Femenino , Genotipo , Hepatitis C Crónica/virología , Humanos , Interferón alfa-2 , Masculino , Persona de Mediana Edad , Polietilenglicoles , Proteínas Recombinantes , Estudios Retrospectivos , Factores de Tiempo , Resultado del Tratamiento , Carga Viral
13.
World J Gastroenterol ; 12(27): 4420-4, 2006 Jul 21.
Artículo en Inglés | MEDLINE | ID: mdl-16865790

RESUMEN

AIM: To retrospectively evaluate the vaccination-induced anti-HBs seroconversion rates in treatment-naive and treatment-experienced chronic hepatitis C (CHC) patients. Also to prospectively evaluate the seroconversion rates in CHC patients during pegylated interferon (PEG) plus ribavirin (RIB) treatment. METHODS: Seventy treatment-naive CHC patients (group A), 22 sustained virological responders-SVR following interferon (IFN) plus RIB treatment CHC patients (group B) and 121 healthy subjects (group C) had been participated in the same HBV vaccination schedule (20 microg, 0-1-6 mo). Seroconversion was considered if anti-HBs levels were above 10 mIU/mL within 3 mo following the third dose of the vaccine. Moreover, we prospectively selected 30 non-cirrhotic CHC patients and evaluated them for the efficacy of the same vaccine schedule randomizing them in two groups: Group-1, 15 CHC patients received the first dose of the vaccine in parallel with the initiation of PEG plus RIB treatment and Group-2, 15 patients received the same vaccination schedule without concomitant treatment. Determination of anti-HBs was performed at mo 1, 2, and 7. Statistical analysis of data was based on ANOVA student's t-test and chi-square analysis (P < 0.05). RESULTS: Fifty-eight of 70 group A patients (82.85%), 20/22 group B (90.9%) and 112/121 healthy subjects (92.56%) had been seroconverted. The seroconversion rates were significantly higher in the control group than in treatment-naive CHC patients (P = 0.04). The corresponding rates were comparable between group A and group B CHC patients (P = 0.38). The vast majority of non-responders (10/14, 71.43%) had been infected by genotype-1 of HCV. The seroconversion rates were comparable between group 1 and 2 CHC patients at mo 1 (20% versus 26.7%, P = 0.67), mo 2 (46.7% vs 60%, P = 0.46) and mo 7 (86.7% versus 93.3%, P = 0.54) of follow-up. CONCLUSION: The immunogenicity of HBV vaccine seems to be lower in CHC patients compared to healthy subjects. SVR following IFN plus RIB treatment does not affect the antibody response to HBV vaccine. Infection by genotype-1 seems to negatively influence the seroconversion rates. Vaccination against HBV during PEG plus RIB combination treatment is not beneficial in terms of anti-HBs seroconversion rates.


Asunto(s)
Antivirales/uso terapéutico , Genes MHC Clase II/genética , Vacunas contra Hepatitis B/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/prevención & control , Interferón-alfa/uso terapéutico , Polietilenglicoles/uso terapéutico , Ribavirina/uso terapéutico , Adulto , Quimioterapia Combinada , Femenino , Hepacivirus/genética , Hepacivirus/inmunología , Anticuerpos contra la Hepatitis B/genética , Anticuerpos contra la Hepatitis B/metabolismo , Vacunas contra Hepatitis B/inmunología , Virus de la Hepatitis B/genética , Virus de la Hepatitis B/inmunología , Anticuerpos contra la Hepatitis C/genética , Anticuerpos contra la Hepatitis C/metabolismo , Hepatitis C Crónica/inmunología , Humanos , Esquemas de Inmunización , Interferón alfa-2 , Masculino , Estudios Prospectivos , Proteínas Recombinantes , Estudios Retrospectivos , Vacunas Sintéticas/inmunología , Vacunas Sintéticas/uso terapéutico
14.
Eur J Gastroenterol Hepatol ; 18(5): 525-30, 2006 May.
Artículo en Inglés | MEDLINE | ID: mdl-16607149

RESUMEN

OBJECTIVE: To evaluate the diagnostic value of serum procalcitonin levels in patients with acute or chronic liver disease, with or without bacterial infections and to correlate the results with the clinical outcome and the laboratory findings for these patients. METHODS: One hundred and six consecutive hospitalized patients with liver disease were evaluated for procalcitonin levels on admission. Fifteen of them (14.2%) had acute alcoholic hepatitis on cirrhotic background (group A), 20 (18.9%) had alcoholic cirrhosis without hepatitis and/or bacterial infection (group B), 16 (15.1%) had decompensated cirrhosis with proved bacterial infection (group C), 42 (39.6%) had uncomplicated viral hepatitis-related cirrhosis (group D) and 13 (12.3%) had acute icteric viral hepatitis (group E). Serum procalcitonin levels were measured using an immunoluminometric assay. Statistical analysis was based on Student's t-test and the non-parametric Kruskall-Wallis test (P<0.05). RESULTS: Serum procalcitonin levels were significantly higher in cirrhotic patients with bacterial infection (9.80+/-16.80 ng/ml) than in those without bacterial infection (0.21+/-0.13 ng/ml, P=0.001), whereas they were within normal range (<0.5 ng/ml) in all patients with uncomplicated cirrhosis, irrespective of the cause of cirrhosis. Seven of 15 group A patients (46.2%) and 4/13 group E patients (30.8%), all of them cirrhotics, had procalcitonin levels higher than 0.5 ng/ml on admission, without established bacterial infection. CONCLUSION: Serum procalcitonin levels remain below the threshold of 0.5 ng/ml in all patients with uncomplicated cirrhosis, irrespective of the cause of the disease, while they are significantly elevated when bacterial infection complicates the course of the disease. A significant proportion of patients with acute alcoholic hepatitis on a cirrhotic background as well as of patients with acute on chronic viral hepatitis, without bacterial infection, exhibit serum procalcitonin levels above 0.5 ng/ml, suggesting that this cut-off value is probably not enough to discriminate between patients with or without bacterial infection within these subgroups of patients with liver disease.


Asunto(s)
Infecciones Bacterianas/sangre , Calcitonina/sangre , Hepatitis/sangre , Cirrosis Hepática/sangre , Precursores de Proteínas/sangre , Enfermedad Aguda , Adolescente , Adulto , Anciano , Alanina Transaminasa/sangre , Aspartato Aminotransferasas/sangre , Infecciones Bacterianas/complicaciones , Bilirrubina/sangre , Recuento de Células Sanguíneas , Péptido Relacionado con Gen de Calcitonina , Femenino , Hemoglobinas/análisis , Hepatitis/complicaciones , Hepatitis Alcohólica/sangre , Hepatitis Alcohólica/complicaciones , Hepatitis Viral Humana/sangre , Hepatitis Viral Humana/complicaciones , Humanos , Cirrosis Hepática/complicaciones , Cirrosis Hepática Alcohólica/sangre , Cirrosis Hepática Alcohólica/complicaciones , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Tiempo de Protrombina , Albúmina Sérica/análisis , Infecciones Urinarias/sangre , Infecciones Urinarias/complicaciones , Infecciones Urinarias/microbiología
15.
J Gastroenterol Hepatol ; 21(3): 622-3, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16638114

RESUMEN

Interferon-induced, immune-mediated, thrombocytopenia is a rare event. In this report the case is described of development of severe, reversible, autoimmune thrombocytopenia in a patient with chronic hepatitis C virus infection, 6 months after the discontinuation of pegylated interferon-alpha-2b plus ribavirin treatment. Physicians must be aware that autoimmune thrombocytopenia can occur even after the end of treatment, as a late onset complication, especially when using the pegylated forms of interferons, which have longer half-lives and prolonged activity.


Asunto(s)
Antivirales/efectos adversos , Hepatitis C Crónica/tratamiento farmacológico , Interferón-alfa/efectos adversos , Ribavirina/efectos adversos , Trombocitopenia/inducido químicamente , Adulto , Quimioterapia Combinada , Humanos , Interferón alfa-2 , Masculino , Polietilenglicoles , Proteínas Recombinantes , Resultado del Tratamiento
17.
Hepatology ; 42(1): 77-85, 2005 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15962284

RESUMEN

We studied viral dynamic parameters in 44 chronic hepatitis B/hepatitis B e antigen (HBeAg)(-) patients treated with pegylated interferon alfa-2b (PEG-IFN) 100 or 200 microg weekly or lamivudine 100 mg daily or the combination of PEG-IFN 100 or 200 microg with lamivudine. Patients receiving PEG-IFN monotherapy exhibited viral load oscillations between weekly injections, which were resolved by the addition of lamivudine. The median pharmacological delay was estimated at 4.1, 5.8, and 1.8 hours in PEG-IFN monotherapy, PEG-IFN 100/200 microg + lamivudine, and lamivudine monotherapy, respectively (P = .44). The median half-life of free virus was 12.7 hours (range, 2.4-69.2 hours). The mean antiviral effectiveness of PEG-IFN 100/200 microg monotherapy was lower than that of lamivudine (82.6% vs. 96.4%; P = .005). The mean effectiveness of PEG-IFN 100 microg + lamivudine and PEG-IFN 200 microg + lamivudine was 92.8% and 94.4%, respectively. The half-life of infected cells ranged from 2.7 to 75 days. The median half-life of infected cells in patients receiving the combination regimens of PEG-IFN and lamivudine was similar to that of lamivudine patients (5.0 days vs. 6.0 days, P = .77). In conclusion, the addition of pegylated interferon alfa-2b in lamivudine treatment was found to neither enhance the potency of blocking HBV production nor the decay rates of infected cells. Supplementary material for this article can be found on the HEPATOLOGY website (http://www.interscience.wiley.com/jpages/0270-9139/suppmat/index.html).


Asunto(s)
Antivirales/uso terapéutico , Hepatitis B Crónica/inmunología , Interferón-alfa/uso terapéutico , Lamivudine/uso terapéutico , Polietilenglicoles/uso terapéutico , Carga Viral , Adulto , Fenómenos Biomecánicos , Femenino , Antígenos e de la Hepatitis B/inmunología , Hepatitis B Crónica/tratamiento farmacológico , Humanos , Interferón alfa-2 , Masculino , Persona de Mediana Edad , Modelos Biológicos , Proteínas Recombinantes , Resultado del Tratamiento
18.
World J Gastroenterol ; 11(13): 1922-8, 2005 Apr 07.
Artículo en Inglés | MEDLINE | ID: mdl-15800981

RESUMEN

AIM: Predictive value of serum b2-microglobulin (b2m) levels for virological breakthrough (VB) in HBeAg-negative chronic hepatitis B (CHB) patients under long-term treatment schedules including lamivudine (LAM). METHODS: Serum b2m levels were calculated during treatment in 25 CHB patients under long-term LAM monotherapy (group A) and 12 patients under initial interferon plus LAM treatment followed by LAM monotherapy (group B), using the MEIA technology. We used Cox proportional hazard models in order to investigate the association between serum b2m levels and VB. RESULTS: Seven of 25 patients (28%), 9/25 (36%) and 14/25 (56%) from group A and 0/12, 2/12 (16.6%) and 3/12 (25%) from group B exhibited VB at months 12, 24 and 36 of treatment, respectively. All patients, from both groups, who did not show VB exhibited b2m elevation in mo 3. The duration of b2m elevation was significantly longer in the virological responder's subgroup from group A than the non-responder's one (7.3+/-2.6 vs 3.8+/-3.4 mo, P = 0.02). In comparison to group A patients whose b2m levels were increased at 3 mo, patients whose b2m levels were decreased had 4.6 times higher risk of experiencing VB (RR = 4.6, P = 0.024). When baseline variables were simultaneously included in the same Cox model, decreased b2m status was still associated with increased risk of VB (RR = 12.2, P = 0.03). CONCLUSION: In HBeAg-negative CHB patients under either long-term LAM monotherapy or initial combination treatment, serum b2m levels at 3 mo of treatment, compared to baseline ones, might be a predictor of risk for VB.


Asunto(s)
Antígenos e de la Hepatitis B/sangre , Hepatitis B Crónica/tratamiento farmacológico , Lamivudine/administración & dosificación , Inhibidores de la Transcriptasa Inversa/administración & dosificación , Microglobulina beta-2/sangre , Adulto , Antivirales/administración & dosificación , Biomarcadores/sangre , Quimioterapia Combinada , Femenino , Hepatitis B Crónica/sangre , Hepatitis B Crónica/mortalidad , Humanos , Interferones/administración & dosificación , Masculino , Persona de Mediana Edad , Proyectos Piloto , Modelos de Riesgos Proporcionales , Factores de Riesgo
19.
Eur J Dermatol ; 15(2): 107-9, 2005.
Artículo en Inglés | MEDLINE | ID: mdl-15757824

RESUMEN

A 32-year-old man with chronic hepatitis B who was treated with pegylated interferon alpha-2b once a week, developed widespread psoriasis 4 weeks after the beginning of the treatment. There was no history of psoriasis. The treatment was stopped and gradually the eruption vanished. Thereafter, the patient was treated with lamivudine successfully without dermatological or other sequelae.


Asunto(s)
Antivirales/efectos adversos , Hepatitis B Crónica/tratamiento farmacológico , Interferón-alfa/efectos adversos , Psoriasis/inducido químicamente , Adulto , Humanos , Interferón alfa-2 , Masculino , Polietilenglicoles , Psoriasis/patología , Proteínas Recombinantes
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