oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 15 )

2018 ( 13 )

2017 ( 11 )

2016 ( 21 )

Custom range...

Search Results: 1 - 10 of 5226 matches for " Coral Gabriela "
All listed articles are free for downloading (OA Articles)
Page 1 /5226
Display every page Item
Prevalência e prognóstico da peritonite bacteriana espontanea: experiência em pacientes internados em um hospital geral de Porto Alegre, RS, Brasil (1991-2000)
Coral, Gabriela;Mattos, Angelo Alves de;Damo, Danielle F.;Viégas, Ana C.;
Arquivos de Gastroenterologia , 2002, DOI: 10.1590/S0004-28032002000300005
Abstract: background: spontaneous bacterial peritonitis is a frequent complication that occurs in patients with cirrhosis and ascites and has a recurrence rate of 70% in 1 year. in addition, this infection determines a poor short and long-term prognosis and a shorter survival rate. aims: evaluate the prevalence of spontaneous bacterial peritonitis in cirrhotic patients with ascites and the effect of its occurrence on the survival. patients/methods: one thousand and thirty admissions of patients with cirrhosis and ascites were reviewed and 114 episodes of spontaneous bacterial peritonitis were documented in 94 patients. the ascitic analysis was accomplished in all patients. the diagnosis of this infection was established when the ascitic fluid polymorphonuclear count was equal or above 250 cells mm3. results: the prevalence of this infection was 11.1% and the mortality rate 21.9%. spontaneous bacterial peritonitis was community acquired in 61.4% and hospital acquired in 37.7%. the mortality rate was 18.6% and 27.9%, respectively. the infection resolved in 91.1% of the episodes by the analysis of ascitic fluid at 48 hours on antibiotics. the use of prophylactic antibiotics was documented in 22.3% of the episodes, but there are not significant differences on the mortality or type of bacteria isolated when comparing the patients with or without this treatment. conclusions: spontaneous bacterial peritonitis is a common complication in patients with cirrhosis and ascites and determines a worse prognosis, mainly when related with absence of initial response to antibiotics.
Esteatose e esteatohepatite n?o-alcoólica nos pacientes com hepatite cr?nica pelo vírus da hepatite C
Coral, Gabriela;Mattos, Angelo Alves de;Mattos, ?ngelo Zambam de;Santos, Diogo Edele dos;
Arquivos de Gastroenterologia , 2006, DOI: 10.1590/S0004-28032006000400004
Abstract: backgroud: hepatic steatosis is a common finding in patients with hepatitis c, mainly virus c genotype 3. steatosis in these cases might be associated with antiviral treatment response and with prognosis of chronic hepatitis. aims: to determine the presence of steatosis and non-alcoholic steatohepatitis in chronic hepatitis c and its correlation with genotype and hepatic fibrosis. patients and methods: one hundred and twenty patients with chronic hepatitis c were retrospectively evaluated; genotype was done in 102 patients. all specimens were stained with hematoxylin-eosin, picrosirius and perls. staging of hepatitis c was scored by brazilian classification and the diagnosis of non-alcoholic steatohepatitis by the american association for the study of liver diseases criteria results: steatosis was found in 65 of 120 cases (54.2%); it was mild in 37/65 (56.9%), moderate in 12/65 (18.5%) and severe in 10/65 (15.4%). in relation to fibrosis, 80 of 120 patients had mild fibrosis f0-f2 (66.6%) and 40 (33.3%) had more advanced fibrosis (f3 or f4). steatosis was associated with genotype 3 (76.7%) in comparison with other genotypes (49,0%). there were no relationship between steatosis and advanced fibrosis f3/f4 (52,5%) or mild fibrosis (54,4%). non-alcoholic steatohepatitis was diagnosed in 8/120 cases (6.7%) and was significantly associated with hepatitis c virus genotype 3 and with advanced fibrosis (f3 and f4) conclusions: the presence of steatosis and non-alcoholic steatohepatitis in chronic hepatitis c are associated to genotype 3; moreover non-alcoholic steatohepatitis was correlated with more advanced fibrosis.
Infec??o bacteriana no paciente cirrótico
Mattos, Angelo A. de;Coral, Gabriela P.;Menti, Eduardo;Valiatti, Fabiana;Kramer, Caroline;
Arquivos de Gastroenterologia , 2003, DOI: 10.1590/S0004-28032003000100003
Abstract: background: bacterial infections at admission or during hospitalization are frequent complication of cirrhosis that occurs in about 30% of the cases. furthermore they are responsible for 25% of deaths in this population. aim: evaluate the prevalence of bacterial infections in cirrhotic patients at a general hospital and determine its correlation with alcoholic etiology of liver disease; degree of hepatic dysfunction and upper gastrointestinal bleeding. patients/methods: five hundred and forty one admissions were retrospectively evaluated in 426 cirrhotic patients at years 1992 to 2000. the mean age was 50.5 years (15-95), being 71.2% male. the alcoholic etiology of cirrhosis was 35.4%. the main outcome considered was discharge or death during admission. results: one hundred and thirty five episodes of bacterial infections (25%) were diagnosed. the most frequent are urinary tract infection (31.1%), spontaneous bacterial peritonitis (25.9%) and pneumonia (25.2%). the association between urinary tract infection and pneumonia occurred in 3.7% and erysipelas or cellulites in 11.1%. bacteremia occurred in 2.9%. there was a correlation between bacterial infection and alcoholic etiology of liver disease, hepatic dysfunction and upper gastrointestinal bleeding. the mortality was higher in the infected patients (8.9%) and in those with a poor hepatic function. conclusions: bacterial infections are common complications in cirrhotic patients and are correlated with alcoholic etiology, child pugh classification and upper gastrointestinal bleeding. furthermore, bacterial infections are correlated with poor prognosis.
Prevalência e prognóstico da peritonite bacteriana espontanea: experiência em pacientes internados em um hospital geral de Porto Alegre, RS, Brasil (1991-2000)
Coral Gabriela,Mattos Angelo Alves de,Damo Danielle F.,Viégas Ana C.
Arquivos de Gastroenterologia , 2002,
Abstract: RACIONAL: A peritonite bacteriana espontanea é complica o freqüente nos pacientes com cirrose e ascite, apresentando taxa de recurrência em 1 ano próxima de 70%. OBJETIVOS: Avaliar a prevalência da peritonite bacteriana espontanea em pacientes com ascite por hepatopatia cr nica e o impacto da sua presen a na sobrevida dos mesmos. PACIENTES/MéTODOS: Foram avaliadas 1030 interna es de pacientes com cirrose e ascite, tendo sido documentados 114 episódios de peritonite bacteriana espontanea em 94 pacientes. Em todos foi realizada paracentese com análise do líquido ascítico. O diagnóstico desta complica o foi estabelecido quando o número de polimorfonucleares do líquido de ascite fosse superior a 250 células por mmsuperscript three. RESULTADOS: A prevalência da peritonite bacteriana espontanea foi de 11,1% e sua mortalidade de 21,9%. A infec o foi adquirida na comunidade em 61,4% e no hospital em 37,7%, sendo as taxas de óbito de 18,6% e 27,9%, respectivamente. Houve controle da infec o, documentado pela análise do líquido de ascite coletado por paracentese realizada 48 horas após o início da antibioticoterapia, em 91,1% dos episódios. Nestes casos a mortalidade foi de 16,7%. Nos casos em que a infec o n o foi controlada, o óbito ocorreu em 80,0%. Em 22,3% da amostra foi documentado o uso do antibiótico profilático sem, no entanto, demonstrar haver diferen a significativa quanto à mortalidade, quando comparados aos pacientes que n o realizaram profilaxia. CONCLUS ES: A peritonite bacteriana espontanea é infec o freqüente nos pacientes com ascite por hepatopatia cr nica, com prognóstico reservado, principalmente na ausência de resposta precoce à antibioticoterapia.
Infec o bacteriana no paciente cirrótico
Mattos Angelo A. de,Coral Gabriela P.,Menti Eduardo,Valiatti Fabiana
Arquivos de Gastroenterologia , 2003,
Abstract: RACIONAL: Em torno de 30% dos pacientes com cirrose hepática apresentam infec o bacteriana na admiss o hospitalar ou a desenvolvem durante a mesma. As infec es bacterianas s o responsáveis por até 25% das mortes nesta popula o de pacientes. OBJETIVO: Avaliar a prevalência de infec o bacteriana em uma popula o de pacientes cirróticos internados em hospital geral, bem como correlacionar sua presen a com a etiologia alcoólica da hepatopatia, com o grau de comprometimento da fun o hepática e com a presen a de hemorragia digestiva alta. PACIENTES E MéTODOS: Foram avaliadas retrospectivamente 541 interna es hospitalares consecutivas em 426 pacientes com cirrose hepática, internados no período de 1992 a 2000. A média de idade destes pacientes foi de 50,5 anos (15-95), sendo 71,2% do sexo masculino. Etiologia alcoólica da hepatopatia esteve presente em 35,4% dos pacientes. Alta ou óbito do paciente no período da interna o hospitalar foi considerado como principal desfecho. O nível de significancia considerado na análise estatística foi de 5%. RESULTADOS: As infec es bacterianas ocorreram em 25% dos cirróticos (135 episódios). Destas, as mais freqüentes foram: a infec o do trato urinário em 31,1%, a peritonite bacteriana espontanea em 25,9% e a broncopneumonia em 25,2%. Ocorreu associa o de infec o urinária e broncopneumonia em 3,7% e infec o de pele e tecido celular subcutaneo em 11,11%. Bacteremia sem foco definido ocorreu nos quatro casos restantes (2,9%). Houve associa o da presen a de infec o com a etiologia alcoólica da hepatopatia, com a classifica o de Child-Pugh e com a ocorrência de hemorragia digestiva alta. A mortalidade hospitalar foi maior nos pacientes infectados (8,9%), estando a mesma associada ao grau de disfun o hepatocelular. CONCLUS ES: A ocorrência de infec o bacteriana no paciente cirrótico hospitalizado é freqüente e correlaciona-se com a etiologia alcoólica da hepatopatia, com a reserva funcional hepática e com a presen a de sangramento digestivo. Além disso, a presen a de infec o bacteriana correlaciona-se com mau prognóstico.
The vitamin E reduces liver lipoperoxidation and fibrosis in a model of nonalcoholic steatohepatitis
Zamin Jr, Idilio;Mattos, Angelo Alves de;Mattos, ?ngelo Zambam de;Coral, Gabriela;Santos, Diogo;Rhoden, Cláudia;
Arquivos de Gastroenterologia , 2010, DOI: 10.1590/S0004-28032010000100015
Abstract: context: no effective treatment is available for nonalcoholic steatohepatitis in nowadays. objectives: to develop a model of nonalcoholic steatohepatitis induced by a methionine and choline deficient diet, as well as to evaluate the role of metformin, vitamin e and simvastatin in the nonalcoholic steatohepatitis progression. methods: the study analyzed prospectively 50 wistar rats for a 90-day period and divided them into five groups of 10 rats. one group was given standard rat diet and the others received the methionine and choline deficient diet. among the four groups that received this diet, one received saline 0,9% and the others received metformin, vitamin e or simvastatin. after the study period, the animals were sacrificed and their blood was collected for biochemical analysis. the livers were removed for lipoperoxidation analysis and for the histological examinations. results: the methionine and choline deficient diet was able to induce steatosis in 100% of the animals and nonalcoholic steatohepatitis in 27 (69.2%). the alanine aminotransferase levels were significantly higher in the simvastatin group. the aspartate aminotransferase levels were also higher in the simvastatin group, but were statistically significant only in relation to the standard diet group. when lipoperoxidation values were compared, the groups that received standard rat diet and methionine and choline deficient with vitamin e presented significantly lower rates than the others. the presence of fibrosis was significantly smaller in the group receiving vitamin e. conclusions: the diet used was able to induce steatosis and nonalcoholic steatohepatitis. besides vitamin e showed to reduce the liver oxidative stress, as well as the fibrosis development
Analysis of the sustained virological response in patients with chronic hepatitis C and liver steatosis
Piccoli, Leonora De Zorzi;Mattos, Angelo Alves de;Coral, Gabriela Perdomo;Mattos, ?ngelo Zambam de;Santos, Diogo Edele dos;
Arquivos de Gastroenterologia , 2011, DOI: 10.1590/S0004-28032011000300005
Abstract: context: chronic hepatitis c as well as non-alcoholic fatty liver disease are recognized as the main cause of liver disease in western countries. it is common to see the concomitance of the diseases and the influence of steatosis in the sustained virological response of patients with hepatitis c virus. objective: assess the sustained virological response in chronic hepatitis c patients according to the presence of liver steatosis. methods: one hundred sixty patients with chronic hepatitis c were retrospectively evaluated. demographic data such as gender, age, body mass index, presence of diabetes mellitus and systemic arterial hypertension, virus genotype and use of pegylated interferon were analyzed, as was the staging of fibrosis and the presence of steatosis at histology. results: most patients were male (57.5%), with a mean age of 48 ± 9.7 years. the most frequent genotype observed was 3 (56.9%) and, in the histological evaluation, steatosis was observed in 65% of the patients (104/160). sustained virological response in patients with steatosis occurred in 38.5%, and in 32.1% in patients without steatosis (p = 0.54). when we analyzed possible factors associated with the presence of steatosis, only body mass index and systemic arterial hypertension revealed a significant association. when the factors that influenced sustained virological response were evaluated in a logistic regression, genotype and use of pegylated interferon proved to be independent factors associated to the response. conclusion: in the evaluated patients the presence of liver steatosis did not influence the sustained virological response of patients with chronic hepatitis c treated with interferon and ribavirin.
Occult hepatitis B virus infection in patients with chronic liver disease due to hepatitis C virus and hepatocellular carcinoma in Brazil
Branco, Fernanda;Mattos, Angelo Alves de;Coral, Gabriela Perdomo;Vanderborght, Bart;Santos, Diogo Edele;Fran?a, Paulo;Alexander, Cláudio;
Arquivos de Gastroenterologia , 2007, DOI: 10.1590/S0004-28032007000100013
Abstract: background: the prevalence and consequences of occult hbv infection in patients with chronic liver disease by hcv remain unknown. aims: to evaluate the prevalence of occult hbv infection in a population of hcv-infected patients with hepatocellular carcinoma. methods: the serum samples were tested for hbv dna by nested pcr and liver tissue analysis was carried out using the immunohistochemical technique of 66 hbsag-negative patients: 26 patients with chronic hepatitis by hcv (group 1), 20 with hepatocellular carcinoma related to chronic infection by hcv (group 2) and 20 with negative viral markers for hepatitis b and c (control group). results: occult hbv infection was diagnosed in the liver tissue of 9/46 (19.5%) hcv-infected patients. prevalence of occult b infection was evaluated in the hcv-infected patients with and without hepatocellular carcinoma, and there were seven (77.7%) of whom from group 2, conferring a 35% prevalence of this group. no serum sample was positive for hbv dna in the three groups. conclusion: occult infection b is frequently detected in liver tissue of hcv-infected patients, especially in cases of hepatocellular carcinoma. however large studies are needed to confirm that co-infection could determine a worse progress of chronic liver disease in this population.
Breastfeeding patterns in Rio Branco, Acre, Brazil: a survey of reasons for weaning
Wayland, Coral;
Cadernos de Saúde Pública , 2004, DOI: 10.1590/S0102-311X2004000600038
Abstract: this paper presents a preliminary profile of infant feeding practices in a peri-urban amazonian community. a random sample of 180 households with at least one child under the age of five years were interviewed in 1996 as part of a maternal-child health survey conducted in a peri-urban neighborhood in rio branco, acre, brazil. since some households had more than one child under the age of five, data were collected for a total of 250 children. the results of the survey indicate that initiation of breastfeeding is nearly universal, with 96.0% of women breastfeeding their infants at birth. however, many mothers terminate breastfeeding before the recommended age. forty-five percent of infants are weaned before six months and 62.0% are weaned before 12 months. the survey also reveals that mothers give supplemental food and drink at an early age. finally, while women give a variety of responses for why breastfeeding was terminated, the most common answer (42.0%) was that the infant refused the breast. the meaning and implications of this response merit further investigation.
La estadística y los terremotos: (Descripción de modelos)
Coral Carlos
Revista Colombiana de Estadística , 1986,
Abstract: En el artículo se exponen algunos de los métodos y modelos utilizados comúnmente en el pronóstico de terremotos, planteándose brevemente la posibilidad de la aplicación de la familia G.H. de Tuckey para estudiar las características del riesgo sísmico en Colombia como un campo de aplicación de la estadística.
Page 1 /5226
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.