Whole genome analysis of hepatitis B virus before and during long-term therapy in chronic infected patients: Molecular characterization, impact on treatment and liver disease progression.

Hepatitis B virus (HBV) infection remains a serious public health concern worldwide despite the availability of an efficient vaccine and the major improvements in antiviral treatments. The aim of the present study is to analyze the mutational profile of the HBV whole genome in ETV non-responder chronic HBV patients, in order to investigate antiviral drug resistance, immune escape, and liver disease progression to Liver Cirrhosis (LC) or Hepatocellular Carcinoma (HCC). Blood samples were collected from five chronic hepatitis B patients.

C-reactive Protein Is the Best Biomarker to Predict Advanced Acute Cholecystitis and Conversion to Open Surgery. A Prospective Cohort Study of 556 Cases.

Background: White blood cell levels (WBC) is the only biologic determinant criterion of the severity assessment of acute cholecystitis (AC) in the revised Tokyo Guidelines 2018 (TG18). The aims of this study were to evaluate the discriminative powers of common inflammatory markers (neutrophil-to-lymphocyte ratio (NLR), and C-reactive protein (CRP)) compared with WBC for the severity of AC, and the risk for conversion to open surgery and to determine their diagnostic cutoff levels.

Methods: This was a prospective cohort study.

Targeted next generation sequencing screening of Lynch syndrome in Tunisian population.

A high colorectal cancer (CRC) incidence is observed in Tunisia, with a relatively high proportion of patients developing CRC before the age of 40. While this suggests a genetic susceptibility, only a few Tunisian Lynch Syndrome families have been described. In this study we aimed to identify the underlying genetic cause in 32 patients with early onset CRC and/or a positive family history.

Surgery for Colorectal Cancer in Elderly Patients: How Could We Improve Early Outcomes ?

Background: Age is one of the causes behind the undertreatment of elderly colorectal cancer patients. The increase of mortality among elderly colorectal cancer (CRC) patients is due to competing causes of death occurring in the early post operative period. The purpose of this study was to evaluate the risk factors for post operative mortality and morbidity among elderly CRC patients.

Clinico-Pathological Caracteristics, Therapeutic Features and Post-operative Course of Colorectal Cancer in Elderly Patients.

Statement Of Problem: Colorectal cancer is predominantly a disease of elderly people and is a major cause of morbidity and mortality in the elderly population. The geriatric colorectal population is a very heterogeneous group, including patients with excellent health status and others with comorbid conditions, functional dependency, and limited life expectancy. On the other hand, the effectiveness of surgery for colorectal cancer depends on it being carried out safely, which allows most patients to return to productive lives, with an improved post-operative life expectancy or at least one that is not diminished by the surgery.

Iatrogenic colorectal Kaposi sarcoma complicating a refractory ulcerative colitis in a human immunodeficiency negative-virus patient.

Kaposi sarcoma is a mesenchymal tumor associated to a human herpes virus-8. It often occurs in human immunodeficiency virus-positive subjects. Colorectal localization is rare.

Solid pseudopapillary neoplasm of the pancreas in an old man: age does not matter.

Solid pseudopapillary tumor (SPN) of the pancreas is a rare tumor, but has favorable prognosis. It is typically observed in young women. Only few cases have been reported in young men.

Frequency and clinical significance of core promoter and precore region mutations in Tunisian patients infected chronically with hepatitis B.

Genetic variability of hepatitis B virus (HBV) in the C gene and its association with the different stages of chronic liver disease has been studied inadequately with controversial results. The objectives of the current study were to determine the frequency of core promoter and precore mutations in chronic hepatitis B in Tunisia and to evaluate their impact on viral replication and disease progression. Sequencing was performed in upstream regulatory sequence (URS), pre-core (PreC) and basal core promoter (BCP) regions for 123 chronic infected patients by HBV genotype D at different status of disease.

Hepatitis B virus and hepatitis C virus co-infection: a therapeutic challenge.

Hepatitis B virus and hepatitis C virus are the two most common causes of chronic liver disease in the world. Dual infection with hepatitis B virus and hepatitis C virus, whose prevalence is underestimated, is characterized by a more severe liver injury, a higher probability of liver cirrhosis and a higher incidence of hepatocellular carcinoma. Treatment of these patients represents a therapeutic challenge.

Gastrointestinal bleeding due to an erosion of the superior mesenteric artery: an exceptional fatal complication of pancreatic pseudocyst.

The erosion of a pancreatic pseudocyst into an adjacent artery is a rare and highly lethal complication of pancreatitis with reported death rates of 12% to 40%. The majority of patients had bleeding from the splenic artery, the gastroduodenal artery and the anterior pacreaticoduodenal artery. Exceptionally, some cases with bleeding from the superior mesenteric artery, or hepatic artery were reported.

Histopathologic characteristics and short-term outcomes of colorectal cancer in young Tunisian patients: one center's experience.

Introduction: Colorectal carcinoma (CRC) is generally a disease of persons older than 40 years. Concerning younger patients, controversies still exist regarding features and prognosis of CRC. We performed this study to characterise CRC in young patients (≤ 40 years) as well as to evaluate short-term outcome in comparison with older patients (>40 years) with CRC.

[Prevalence of the microscopic colitis to the course of the chronic diarrhea: about 150 cases].

The goal of our survey is to value the microscopic colitis frequency at 150 patients, colliged on a period of 6 years (1997-2003), that have a chronic diarrhea with a normal total coloscopy and that benefitted of systematic biopsies. The microscopic colitis has been recovered at 44 patients on 150 either 29.3%.