No abstract

The variables of recipient's age, creatinine, urgency of retransplantation, and early failure of the initial transplantation were factors that were independently related to the long-term survival of patients with liver retransplants.

All patients presented satisfactory outcome and remained asymptomatic with normal glicemia levels.

There were no significant differences in cytokine levels between the groups in the present study. In the animals with the polypropylene + polyglactin mesh implant there was the most intense inflammatory process with lower tissue maturation and collagen deposition on the 40th postoperative day. The polypropylene mesh presented a less severe late inflammatory process, with greater tissue maturation and collagen deposition. The polypropylene + titanium mesh presented intermediate values between the others.

Polypropylene and Vypro mesh, when implanted in the peritoneal cavity of rabbits provoke similar amount of adhesions. Vypro mesh tissues had higher fibrosis resulting in better mesh incorporation to the abdominal wall.

PURPOSE: Evaluate short results after fundoplication procedure, concerning the division of short gastric vessels. METHODS: A prospective randomization of 90 patients with indication for hiatoplasty and total fundoplication with fundus mobilization was performed. They were divided into two groups: no SGV division (group A, n= 46) and with SGV division (Group B, n=44), although in both groups the gastric fundus was mobilized to perform a floppy valve. Early outcome with clinical follow up (1 year) was observed. RESULTS: Both groups were similar regarding preoperative parameters and severity of gastroesophageal reflux disease (GERD). No difference in morbidity was observed during hospital stay. Nevertheless, the median operating time was 80,2 minutes in group A and 94,1 minutes (p=0,021) in Group B. Transitory dysphagia during the first year was significantly lower in group B (46,6% versus 23,2%, p=0,012). However, in 12 months clinical outcome was similar in both groups (clinical symptoms of GERD, persistent dysphagia and reoperations). CONCLUSION: There was no improvement in routine division of SGV in total fundoplication procedure when the gastric fundus was mobilized.

Purpose:To evaluate the prognostic significance and correlation with staging and degree of cell differentiation of the tumoral expression of the proteins c-erbB-2 and E-cadherin, in patients with colorectal adenocarcinoma. Methods: The study included 117 patients with an average age of 63.1 years and an average follow-up duration of 28.1 months. The disease-free interval, survival, incidence of recurrence and specific mortality were evaluated. c-erbB-2 anti-oncoprotein antibodies (Dako) were utilized via the streptavidin-biotin technique. Samples were considered to be positive for c-erbB-2 if 10% or more of the tumor cell membranes were stained.The anti-E-cadherin antibodies (Dako), evaluated this protein and is considered positive, if 50% or more of the cell membranes were stained. Statistical analysis was performed using Pearson's chi-squared test, Fisher's exact test, Kaplan-Meier's estimator, the log-rank test and Wilcoxon's test (Breslow version), setting the level of statistical significance at 5% (p<0.05). Results: 52 of 108 patients studied for c-erbB-2 were positive (48,1%), 47 of 93 patients studied for E-cadherin were negative (50,5%). These data do not express any correlation with TNM (tumor, node and metastasis) staging and the degree of cell differentiation or with the tumor recurrence rate. The disease-free interval among patients who were positive for c-erbB-2 and negative for E-cadherin was 68.0 months and did not differ from those with c-erbB-2 negative and E-cadherin positive ( 55.0 months -p = 0.5510). The average survival among patients positive for c-erbB-2 and negative for E-cadherin was 75 months without statistical significance difference with the other group ( 61 months -p = 0.5256). Specific mortality occurred in 20.0% of the cases and did not correlate with the expression of c-erbB-2 (p=0,446), E-cadherin (p=0,883). Conclusion: The tumoral expression of c-erbB-2 and E-cadherin did not demonstrate a correlation with the staging and degree of cell differentiation, and it did not present prognostic value regarding disease recurrence, disease-free interval, survival and specific mortality among patients with colorectal adenocarcinoma. Key words: Colorectal neoplasms. Tumor markers, biological. Receptor, erbB-2. Cadherins. Immunohistochemistry. Prognosis. RESUMOObjetivo: Avaliação da expressão tumoral das proteínas c-erbB-2 e E-caderina e sua relação com o prognóstico, estadiamento e grau de diferenciação celular, em doentes com câncer colo-retal . Métodos: O estudo incluiu 117 doentes com média de idade de 63.1 anos e com acompanhamento médio de 28.1 meses. O intervalo livre de doença, sobrevida, índice de recidiva e mortalidade específica foram os parâmetros avaliados. Anticorpos anti-oncoproteína c-erbB-2 (Dako) foram utilizados pela técnica da estreptavidiva-biotina. Considerou-se como positiva a presença desta proteína quando mais de 10% das células tumorais estivessem coradas. A proteína E-caderina foi estudada pelo anticorpo anti-E-caderina (Dako), sendo computada como posi...

BackgroundGallbladder carcinoma presents a dismal prognosis. Choice treatment is surgical resection that is associated a high levels of both morbidity and mortality. Best knowledgement of prognostic factors may result a better selection of patients either for surgical or multimodal treatment.AimTo evaluate tecidual immunoexpression of P53, E-cadherin, Cox-2, and EGFR proteins and to correlate these findings with resected gallbladder adenocarcinoma survival.MethodsClinical, laboratorial, surgical, and anatomopathological reports of a series of gallbladder adenocarcinoma patients were collected by individualized questionary. Total sample was 42 patients. Median of age was 72 years (35-87). There were seven men and 35 women. Lesion distribuition in according TNM state was the following: T1 (n=2), T2 (n=5), T3 (n=31), T4 (n=4). Twenty-three patients underwent radical resection (R0), while 19 palliative surgery (R1-R2). A block of tissue microarray with neoplasic tissue of each patient was confected. It was performed evaluation of P53, E-Caderine, COX-2, and EGFR proteins imunoexpression. These findings were correlated with overall survival.ResultsFive-year survival was 28%. The median of global survival was eight months. Only immunoexpression of EGFR protein was considered independent variable at multivariated analysis.ConclusionFinal prognosis was influenced by over-expression of EGFR protein in tumoral tissue.