No abstract available.
Helicobacter pylori

Aims: Helicobacter pylori is a causative agent of gastroduodenal diseases in Bangladesh as well as throughout the world. This study aimed to determine the H. pylori cagA, vacA and iceA virulent genotypes by PCR directly in gastric biopsies from dyspeptic patients of Chittagong, Bangladesh and evaluating the association of these genotypes with clinical manifestations. Methodology and results: CLO (Campylobacter-Like Organism) test and Hp16s PCR (16S rRNA based H. pylori specific PCR) was performed to confirm H. pylori infection. Among 111 patients, H. pylori infection was found in 60 patients by CLO test, while Hp16s PCR revealed that 54 patients were H. pylori positive. PCR amplification of the H. pylori virulence genes was successful in 35 gastric biopsies amongst the 54 Hp16s PCR positive biopsies. The positive rates for the cagA, vacAs1, vacAs2, vacAm1, vacAm2, iceA1, iceA2 genes were 34.3%, 71.4%, 8.6%, 62.9%, 28.6%, 20% and 11.4%, respectively. The allelic variant vacAs1m1 had a predominant percentage with 51.4%, followed by vacAs1m2, vacAs2m2 and vacAs1m1m2 with 14.3%, 5.7% and 2.9%, respectively. Among the subtypes of vacAs1, only s1a was detected in 54.3% of biopsies while none of the cases showed the s1b and s1c genotypes. However, there was no statistically significant association (p>0.05) observed between the virulent genotypes and clinical conditions. Conclusion, significance and impact of study: We found that cagA, vacAs1m1 and iceA1 were the most frequent H. pylori genotypes in severe clinical outcomes of the infection. The data in this study would provide a basis for understanding the diverse virulence pattern of this bacterium in Bangladeshi dyspeptic patients.
Helicobacter pylori

To study the prevalence of Helicobacter Pylori (H. pylori) infection, according to ethnicity, gender and endoscopic findings among the patients underwent the oesophago-gastro-duodenoscopes (OGDS) at gastroenterology endoscopy unit, Hospital Serdang, Selangor, Malaysia. The database of all whom underwent OGDS at the gastroenterology endoscopy unit, Hospital Serdang from 1st August 2010 to 31st July 2012 was collected and assessed, retrospectively. A total of 924 patients who underwent OGDS were analyzed for the H. pylori infection by using Campylobacter-like organism (CLO) test. 130 (14.07%) tested positive, and their data were further studied according to gender, ethnicity, age group, initial indication for OGDS and endoscopic finding. The prevalence rate among males was 15.15% (70/462), while it was 12.99% (60/462) among females. In terms of ethnics, H. pylori infection was commonly found among Indian and Chinese with prevalence rate of 25.13% (50/199) and 17.41% (51/293) respectively. These figures are significantly higher than the 6.01% (25/416) for Malays. The age group (31-50 years old) had the highest prevalence rate of H. Pylori infection, which is of 18.55% (41/221). No significant difference was observed among initial indications for OGDS. Erosions were the commonest finding in H. pylori positive group with rate of 51.54% (67/130). However, erosions were not uncommon in H. pylori negative group as well with the rate of 48.61% (386/794). H. pylori infection rate among Malaysians was generally low, with the highest rate in Indians, followed by Chinese and relatively low in Malays. No significant difference between the prevalence rate of H. pylori infection in male and that in female was found. Erosions were equally common in either H. pylori positive or H. pylori negative group. .
Helicobacter pylori

Background: The effect of Helicobacter-pylori eradication therapy on the platelet counts in patients with immune thrombocytopenia is still debatable. The aim of this study was to assess the response rates of standard triple eradication therapy in secondary immune thrombocytopenia with Helicobacter pylori infection. Methods: From January 2012 to December 2013, 197 patients were diagnosed to have immune thrombocytopenia, out of which 22(11.1%) patients infected with HelicobacterPylorus were enrolled in this study. Helicobacter-Pylori infection was documented by Helicobacter-pylori stool antigen enzyme immunoassay method. All positive patients were put on triple eradication therapy. The responses rates to treatment were defined as per International Working Group on ITP. Results: Mean age of patients was 43.18±12.5 years. There were 10(45.5%) males and 12 (54.5%) females. Of the 22 patients, 7(31.8%) exhibited a complete response (CR) to Hpylori eradication therapy; 10(45.4%) attained a response; and 5(22.7%) had no response. Mean base line platelet counts were 53.36±24.5x109 /l, while platelet counts at 4 week following eradication was 80.86±51.0x109 /l (P=0.003). The predictive factor of response following eradication therapy was baseline platelet counts. Virtually all responders had baseline platelet counts >30x109 /l and all non-responders had <30x109 /l of platelet counts. Conclusions: Though the prevalence of H-pylori is low, this study confirmed the efficacy of eradication in increasing the platelet counts in H-pylori positive patients with ITP. It is an important measure in short time, safe and very cost effective to achieve platelets increment. We endorse the routine detection and eradication treatment of H-pylori infective ITP patients.
Helicobacter pylori

Background: Helicobacter pylori is acknowledged to cause chronic gastritis and peptic ulcer disease and is also implicated in gastric carcinoma and B cell mucosa-associated lymphoid tissue (MALT) lymphoma development. It has infected at least half of the world’s population. Proton Pump Inhibitors (PPIs) have been the conventional antacid of choice for H. pylori eradication triple therapy, while vonoprazan is a novel drug of its class that was recently studied but is limited to an oral form which makes it less feasible in cases of acute gastrointestinal bleeding. According to several systematic reviews and meta-analyses, the vonoprazan-based triple therapy regimen for H. pylori eradication is a non-inferior treatment to traditional PPI-based treatment when given in 1 week for patients having no active gastrointestinal bleeding. Likewise, a safety profile has been established with its use, offering an alternative treatment option. Objectives: The research aims to identify the H. pylori eradication rate among H. pylori-positive patients who received a vonoprazan-based triple therapy regimen as outpatients, describe their clinicodemographic profile, and identify potential side effects associated with the treatment. Methods: This study utilized a cross-sectional study design in a single tertiary institution from January 2018 to December 2020. Descriptive and inferential statistics were used in data analysis. Frequency and percentage were utilized to determine the success and failure rates of H. pylori eradication, describe the clinicodemographic profile of patients who underwent vonoprazan-based triple therapy, and the potential side effects with treatment. The chi-square test of independence was applied to assess the significant difference in the successful and failed eradication rates across the clinicodemographic profile. A P-value of <0.05 was considered statistically significant, and statistical analyses were conducted using SPSS version 20.0. Results: 32 (91%) had successful H. pylori eradication, with the majority of them determined by a negative 13C-UBT result (62.8%) and the rest with a negative H. pylori stool antigen test (28.6%). The majority of patients undergoing H. pylori eradication using a vonoprazan-based regimen with documented successful eradication belonged to the 19 to 39 years old group (50%), clerical support workers (40.63%), with a chief complaint of abdominal pain (46.88%), with no known co- morbid illness (75%), and with endoscopic finding limited to antral gastritis alone (46.88%). This study described only two documented side effects of treatment: diarrhea and abdominal pain (2.9%). Conclusion Vonoprazan-based triple therapy, given at 20 mg twice daily for 7 days, has shown a high H. pylori eradication rate among hemodynamically stable patients, without active bleeding, and treated on an outpatient basis. There was a significant difference in eradication success and failure across co-morbidities, with a higher success rate in those without co-morbid illness. A high success rate was also seen in patients <40 years of age, with a single chief complaint, and with antral gastritis as the sole endoscopic finding.
Helicobacter pylori

No abstract available.
Helicobacter pylori* ; Helicobacter* ; Urease*

No abstract available.
Helicobacter pylori* ; Helicobacter*

No abstract available.
Helicobacter pylori* ; Helicobacter*

No abstract available.
Helicobacter pylori* ; Helicobacter*

No abstract available.
Helicobacter pylori* ; Helicobacter*