Esophageal variceal ligation for hemostasis of acute variceal bleeding: efficacy and safety

Introduction: Endoscopic variceal ligation is widely accepted as the optimum endoscopic treatment for esophageal variceal hemorrhage. In Morocco, there are no data regarding the efficacy of this technique. Our aim was to evaluate the effectiveness and safety of endoscopic variceal ligation in the management of oesophageal variceal bleeding in cirrhosis in a located population in Morocco. Methods: Via a retrospective study over 118 months (December 2001- October 2011), cirrhotic patients with endoscopically proven esophageal variceal hemorrhage were treated by endoscopic variceal ligation. We studied the rate of haemostasis, rebleeding, complications and mortality. Results: 360 cirrhotic patients were included and 378 haemostatic variceal ligations were performed. Primary haemostasis was obtained in 96.5 % (N=365) of cases. Thirty three patients (8.7%) bled during follow-up. The rate of minor complications was 15.3 % (N=58). Retrosternal pain, fever, dysphagia and Overtube’s migration developed in 8.4 % (N=32); 2.6 % (N=10); 3,7 % (N=14) and 0.5 % (N=2) of the patients respectively. Severity of these complications was mild and transient. The rate of oesophageal ulcers was 5 % (N=19), while the mortality rate by haemorrhage was 5 % (N=18). Conclusion: Our data showed that band ligation is an effective and safe treatment modality of esophageal variceal bleeding with low rates of rebleeding and complications.Pan African Medical Journal 2013; 14: 9

Non invasive assessment of liver fibrosis in chronic hemodialysis patients with viral hepatitis C

The liver biopsy has long been the "gold standard" for assessing liver fibrosis in patients with hepatitis C. It’s an invasive procedure which is associated with an elevated bleeding, especially in chronic  hemodialysis patients. Main goal is to assess liver fibrosis in chronic hemodialysis with HCV by Fibroscan and by biological scores (APRI, Forns and Fib-4), and to measure the correlation between these tests.  Cross-sectional study including all chronic hemodialysis patients with hepatitis C virus, in two public  hemodialysis centers of Fez. All patients were evaluated for liver fibrosis using noninvasive methods  (FibroScan and laboratory tests). Subsequently, the correlation between different tests has been  measured. 95 chronic hemodialysis were studied, twenty nine patients (30.5%) with chronic hepatitis C. The average age was 52.38 ± 16.8 years. Nine liver fibrosis cases have been concluded by forns score. Fibroscan has objectified significant fibrosis in 6 cases. On the other side APRI has objectified sgnifivant fibrosis only in 3 cases. The Fib-4 showed severe fibrosis in five cases. The results have been most consistent between APRI and Fib-4, followed by Fibroscan and Forns, then APRI and FibroScan.Key words: APRI, fib4, fibroscan, forns, hepatitis C virus, liver fibrosis, chronic hemodialysis

Le syndrome de Plummer Vinson:à propos de 50 cas

Le syndrome de Plummer-Vinson (SPV) est une entité pathologique rare, survenant essentiellement chez la femme jeune. La symptomatologie est dominée par une dysphagie haute avec anémie ferriprive et un anneau au niveau de l’œsophage cervical à l'endoscopie digestive haute. L’objectif de notre travail est de rapporter les aspects épidémiologiques, endoscopiques et évolutifs des patients suivis au sein de notre formation pour SPV.Matériels et méthodes : c'est une étude rétrospective descriptive, étalée sur une période de 10 ans, allant de Janvier 2010 à Aout 2020 au cours de la quelle 50 cas de SPV ont été colligés.Résultats :L’âge moyen des patients était de 46 ans [14 à 77 ans] avec une nette prédominance féminine (sexe Ratio H/F de 0.28). Le motif de consultation était . L’évolution était bonne chez 100% des cas alors qu’on a colligé un cas de tumeur ORL après 10 ans d’évolution et un cas de tumeur de l’œsophage diagnostiqué après dilatation. Dans notre étude , le SPV était associé avec une maladie cœliaque dans 3cas, un foie d’hépatopathie chronique dans 5 cas et 4 cas d’œsophagite disséquante avec l’aspect de décollement muqueux lors des biopsies œsophagiennes.Conclusion :Le SPV est une entité rare avec un risque prouvé de cancer de l’œsophage et de la région oro-pharyngée nécessitant une surveillance endoscopique

Helicobacter pylori genotypes associated with gastric histo-pathological damages in a Moroccan population.

H. pylori persistent infection induces chronic gastritis and is associated with peptic ulcer disease and gastric carcinoma development. The severity of these diseases is related to human's genetic diversity, H. pylori genetic variability and environmental factors. To identify the prevalence of histo-pathological damages caused by H. pylori infection in Moroccan population, and to determine their association to H. pylori genotypes, a prospective study has been conducted during 3 years on patients attending the gastroenterology department of Hassan II University Hospital (CHU) of Fez, Morocco. A total of 801 Moroccan adults' patients were recruited; H. pylori was diagnosed and genotyped by PCR in biopsy specimens and histological exam was performed. We found a high rate of glandular atrophy. Chronic inflammation, neutrophil activity and glandular atrophy showed statistically significant association with H. pylori infection. However, intestinal metaplasia was inversely associated to this infection and no association was observed with gastric cancer cases. A statistically significant association was found between intestinal metaplasia and vacAs1 and vac Am1 genotypes in patients aged 50 years and more but not in younger. This last genotype is also associated to gastric cancer. In this study, gastric cancer showed no significant association with H. pylori. Further studies are warranted to determine the role of other etiological agents such as Epstein-Barr virus, human papillomavirus and possibly environmental and dietetic factors in the occurrence of this pathology

Mutation analysis of BRAF exon 15 and KRAS codons 12 and 13 in Moroccan patients with colorectal cancer.

International audienceThe RAS/RAF/MEK/MAP kinase cascade transduces signals from the cell surface to the nucleus in order to control cellular responses including proliferation, differentiation and survival. We investigated the occurrence of BRAF exon 15 and KRAS codon 12 and 13 mutations in Moroccan patients with colorectal cancer

Mutation analysis of BRAF exon 15 and KRAS codons 12 and 13 in Moroccan patients with colorectal cancer.

International audienceThe RAS/RAF/MEK/MAP kinase cascade transduces signals from the cell surface to the nucleus in order to control cellular responses including proliferation, differentiation and survival. We investigated the occurrence of BRAF exon 15 and KRAS codon 12 and 13 mutations in Moroccan patients with colorectal cancer

VacA and CagA Status as Biomarker of Two Opposite End Outcomes of Helicobacter pylori Infection (Gastric Cancer and Duodenal Ulcer) in a Moroccan Population.

Helicobacter pylori (H. pylori) infection induces inflammation of the gastric mucosa, which may progress to precancerous lesions leading to gastric cancer. Pathological determinism is associated to some virulence genes of the bacterium, notably the vacA and cagA genes. The present study aimed to determine the H. pylori genotypes distribution and their association with sex, age and gastric diseases in a Moroccan population. Gastric biopsy was taken from 1079 consenting patients. The specimens were processed by PCR to identify H. pylori and to determine the genotypic profile by PCR characterizing vacA s, vacA m and vacA i regions directly from biopsies H. pylori positives. VacA genotyping revealed the predominance of vacA m2 (53.2%), vacA s2 (52.9%) and vacA i2 (52%). The most virulent vacA alleles (s1, i1 and m1) are more predominant in men (47.3%, 41.9% and 46.1% respectively) than in women (38.3%, 33.3% and 37% respectively). However, the association between vacA genotypes and age did not reach a statistical significant value. Logistic regression analysis results show that vacA i1m1 and vacA i1m2 genotypes were strongly associated with the risk of GC, the Odds Ratio (95% confidence interval) was 29.73 [5.08-173.73] and 9.17 [2.06-40.82] respectively, while vacAs1/cagA+ seems to be a risk factor for DU since it is inversely associated with GC (OR was 0.13 [0.02-0.75]. The results of this study suggest that vacA i1 genotype independently to vacAm status may be of a clinical usefulness and will help to identify patients at a high risk of GC development

Small Bowel Adenocarcinoma Complicating Coeliac Disease: A Report of Three Cases and the Literature Review

Coeliac disease is associated with an increased risk of malignancy, not only of intestinal lymphoma but also of small intestinal adenocarcinoma which is 82 times more common in patients with celiac disease than in the normal population. We report three additional cases of a small bowel adenocarcinoma in the setting of coeliac disease in order to underline the epidemiological features, clinicopathological findings, and therapeutic approaches of this entity based on a review of the literature. The three patients underwent a surgical treatment followed by adjuvant chemotherapy based on capecitabine/oxaliplatin regimen, and they have well recovered

Prognostic Impact of Tumor Budding on Moroccan Colon Cancer Patients

Background. Tumor budding is now emerging as one of the robust and promising histological factors that play an important role in colon cancer. In this study, we aimed to investigate the association between tumor budding and tumor clinicopathological factors, tumor molecular signature, and patient survival for the first time in a Moroccan population. Methods. We collected data of 100 patients operated from colon adenocarcinoma. Tumor budding was assessed on HES slides, according to the International Tumor Budding Consensus Conference 2016 recommendations. The expression of MMR proteins was performed by immunohistochemistry. KRAS and NRAS mutations testing was performed by Sanger sequencing and pyrosequencing. Results. High tumor budding grade (BUD 3) was found to be significantly associated with adverse clinicopathological features including older age (P=0.03), presence of perineural invasion (P=0.02), presence of vascular invasion (P=0.05), distant metastases (P<0.001), advanced TNM stage (P=0.001), the occurrence of relapse (P=0.04), and the high number of deceased cases (P=0.02). Interestingly, we found that tumors with high-grade tumor budding were more likely to be microsatellite stable (MSS) (P=0.005) and harbor more KRAS mutations (P=0.02). Tumors with high-grade tumor budding were strongly associated with KRAS G12D mutation (P=0.007). In all stages, high tumor budding was correlated with poorer overall survival (P=0.04) and decreased relapse-free survival with a difference close to significance ((P=0.09). We concluded that high tumor budding was strongly associated with unfavorable clinicopathological features and special molecular biomarkers and effectively affects the overall survival of CC patients. Conclusions. Based on these findings and the ITBCC group recommendations, tumor budding should be taken into account along with other clinicopathologic factors in the risk assessment of colorectal cancer

Detection of Helicobacter pylori urease antigen in saliva in patients with different gastric H. pylori status

Background: Finding a simple, accurate, and noninvasive diagnosis method is a substantial challenge for the detection of Helicobacter pylori. The aim of the present study was to compare the presence of H. pylori urease antigen in saliva with the presence of this bacterium in gastric mucosa. Methods: Saliva samples and gastric biopsies were taken from 153 consenting Moroccan patients. Saliva samples were analyzed using an immunochromatographic test for urease antigen H. pylori detection. Thereafter, the gastric biopsies were analyzed by histology and polymerase chain reaction (PCR) to detect this bacterium. Results: From a total of 153 recruited Moroccan patients, H. pylori was detected in 28 (18.30%), 87 (57.24%), and 69 (45.10%) cases by saliva test, histology, and PCR, respectively. A significant association was observed between the presence of H. pylori antigen in saliva and age. However, no association was found with sex, H. pylori virulence factors, gastric disease outcome, and density of the bacterium on the gastric mucosa. Considering that only 90 patients presented concordant results on H. pylori diagnosis (positive or negative) by both histology and PCR, the immunochromatographic test showed very low sensitivity (29.79%) and high specificity (90.70%). Of these two tests, the positive and negative predictive values were 77.78% and 54.17%, respectively. The accuracy of the test for salivary detection of urease antigen H. pylori was 58.89%. Conclusion: This study demonstrated a low detection rate of H. pylori antigens in saliva compared with the presence of this bacterium in gastric mucosa, suggesting that saliva cannot be used as a suitable sample for the diagnosis of H. pylori in our study population