scholarly journals The Changing Prevalence of Helicobacter Pylori Infection in Canadian Children: Should Screening Be Performed in High-Risk Children?

2005 ◽  
Vol 19 (7) ◽  
pp. 412-414 ◽  
Author(s):  
Kevan Jacobson
Keyword(s):  
Socioeconomic Status ◽  
Helicobacter Pylori ◽  
Eradication Therapy ◽  
Developed Countries ◽  
Living Conditions ◽  
Helicobacter Pylori Infection ◽  
Populations At Risk ◽  
H Pylori ◽  
The Impact ◽  
First World

While several studies have demonstrated a decline in the overall prevalence of Helicobacter pylori infection in developed countries, there is variability in the burden of infection linked to socioeconomic status and living conditions. Improved socioeconomic status, living conditions and the availability of H pylori-eradication therapy have been associated with a lower prevalence of infection in First World populations, yet immigrants and indigenous people continue to have a high burden of H pylori infection and disease. Although the changing prevalence of H pylori infection in children has been recognized in a few reports, further studies are required to determine the impact of H pylori infection in this population. Moreover, additional studies are required for those populations at risk.

Prospective Assessment of Helicobacter Pylori Infection and Gastric Pathologies in Sidi Bel Abbes region, Western Algeria

2018 ◽  
Vol 7 (5) ◽  
pp. 217-224
Author(s):  
Zouaouia Chama ◽  
Khedoudj Kanoun ◽  
Fatima Zohra Elkadi ◽  
Kara Turqui Douidi ◽  
Noria Harir ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Helicobacter Pylori ◽  
Histological Study ◽  
Helicobacter Pylori Infection ◽  
University Hospital ◽  
Infection Prevalence ◽  
Gastric Diseases ◽  
Number Of Patients ◽  
H Pylori ◽  
The Impact

Helicobacter pylori infection concerns half of the world’s population, mainly in developing countries. It causes several gastrodudenal pathologies such as gastritis, ulcer and gastric adenocarcinoma. The aim of our study was to determine the prevalence of H.pylori infection and to assess the impact of different epidemiological factors as well as principal gastric diseases associ-ated to this infection. We underwent a prospective study during 18 months (month 2016-month 2017) which implicated 201 symptomatic patients for gastric fiboptic endoscopy at the level of Sidi Bel Abbes University hospital. We collected patients’ biopsies to perform a histological study and H. pylori culture. H. pylori identification was carried out based on bacteriological and biochemical analysis. The middle age of our population was (47.29 ±15.97ans) and the sex-ratio =0,8. The global prevalence of Helicobacter pylori infection is of 61.2% (123/201). This rate, after a statistic analysis, seems to be significantly related to age. It is particularly high especially for patients belonging to age range (20-30)-(51-60) years. The gender did not affect the infection prevalence that is more frequent in the gastritis case. We noticed also that HP infection prevalence was important in SBA the hospital. The range age (20-30)-(51-60) years had the highest prevalence of H. pylori and of gastritis which might be a risky ground of gastric cancer appearance. The ulcer pathology maximal rate concerned the group of 51 to 60 years. Above this age, this rate dropped whereas the number of patients suffering from gastric cancer, which presents an important rate in our study, increase for the group of 61-70 years.

scholarly journals Study on Association between Chronic Idiopathic Urticaria and Helicobacter Pylori Infection in Armed Forces Personnel

2016 ◽  
Vol 12 (2) ◽  
pp. 122-126 ◽  
Author(s):  
Md Sayeed Hasan ◽  
Md Shirajul Islam Khan ◽  
Jannatun Nayeem
Keyword(s):  
Helicobacter Pylori ◽  
Eradication Therapy ◽  
Armed Forces ◽  
Case Control ◽  
Chronic Idiopathic Urticaria ◽  
Helicobacter Pylori Infection ◽  
Enteric Infection ◽  
Clinical Disorder ◽  
Serum Igg ◽  
H Pylori

Introduction: Chronic Idiopathic Urticaria (CIU) has an estimated prevalence of 35-65% and impacts 15 to 25% of the population at some point in their lives. Studies have shown the possible involvement of Helicobacter pylori (H. pylori) infection in chronic idiopathic urticaria (CIU), but the relationship remains controversial. Objective: To quantitatively assess the association between H. pylori infection and chronic idiopathic urticaria. Materials and Methods: This was a case-control type of analytical study and 100 patients were enrolled fifty patients of CIU fulfilling inclusion criteria with no identifiable cause were taken as case and patients without urticaria were taken as control, attending in the department of Dermatology & Venereology, CMH Dhaka for treatment from May 2015 to Aug 2016. Helicobacter pylori infection was confirmed by serum IgG for H. pylori test. Results: The result showed that H. pylori infection significantly affected a high percentage of patients 30 (60%) with chronic idiopathic urticaria. Male respondents were more positive 16(53.3%) than female 14(46.7%), in the middle aged 31-50 year about 18(60%) and triple drug therapy was successful in 16(53.33%) patients in whom H. pylori was detected. Conclusion: Urticaria is a common clinical disorder with complex triggering factors. Chronic urticaria has provided evidence that enteric infection with H. pylori may induce the disease. In this case control study, it was evident that chronic idiopathic urticaria was associated with positive serum IgG for H. Pylori. A trial of H. pylori eradication therapy may be offered to patients with CIU and evidence of H. pylori infection. Journal of Armed Forces Medical College Bangladesh Vol.12(2) 2016: 122-126

scholarly journals European Registry on the management of Helicobacter pylori infection: features of diagnosis and treatment in Kazan

2020 ◽  
Vol 92 (8) ◽  
pp. 52-59
Author(s):  
S. R. Abdulkhakov ◽  
D. S. Bordin ◽  
R. A. Abdulkhakov ◽  
D. D. Safina ◽  
A. R. Gizdatullina ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Proton Pump Inhibitor ◽  
Triple Therapy ◽  
Proton Pump ◽  
Eradication Therapy ◽  
Helicobacter Pylori Infection ◽  
Rapid Urease Test ◽  
Standard Triple Therapy ◽  
Urease Test ◽  
H Pylori

Background. As part of an observational multicenter prospective study European Registry on the management of Helicobacter pylori infection, conducted on the initiative of the European H. pylori and Microbiota Study Group, the compliance of clinical practice in the management of patients with Helicobacter pylori infection in Kazan with clinical guidelines was assessed. Materials and methods. The data of 437 patients included into the register by clinical sites in Kazan in 20132019 were analyzed. The methods used for the initial diagnosis of H. pylori infection and eradication control were evaluated. The frequency of various eradication therapy regimens prescription was analyzed in 379 cases. Data regarding the effectiveness of eradication therapy was analyzed in 173 patients. Results. The rapid urease test (44.2% of cases) and cytology/histology (60% of cases) were most often used for the initial diagnosis of H. pylori infection; however non-invasive methods such as 13C-urea breath (9.2%), serology (6.2%), H. pylori stool antigen test (2.3%) were less common. In 21.7% of patients two methods of H. pylori detection were used for primary diagnosis. The control test to evaluate the effectiveness of eradication therapy at the recommended timepoint was performed in 46.2% of patients. 13C-urea breath test (31.7%), stool PCR/stool antigen test (28.7%), rapid urease test (22.3%), cytology/histology (26.2% of cases) prevailed in the assessment of eradication rate. Standard triple therapy, including proton pump inhibitor, clarithromycin and amoxicillin was most commonly prescribed as first-line therapy (64.6% of cases). The duration of eradication therapy was 14 days in the majority of cases with pantoprazole as the most common proton pump inhibitor in standard triple therapy regimens (84.8%). The efficacy of 14-day standard triple therapy (mITT) was 87.0%. Conclusion. The results indicate a high frequency of non-invasive methods use for assessing the effectiveness of eradication therapy; however, the overall rate of eradication efficacy assessment is low, limiting the possibility of analyzing the eradication results. The effectiveness of the most common 14-day standard triple first-line therapy in Kazan doesnt reach the recommended 90% eradication level. This could be explained by high rate of pantoprazole use, which is not an optimal proton pump inhibitor in eradication therapy regimens.

scholarly journals Eradication of Helicobacter pylori and Gastric Cancer: A Controversial Relationship

2021 ◽  
Vol 12 ◽  
Author(s):  
Mariagrazia Piscione ◽  
Mariangela Mazzone ◽  
Maria Carmela Di Marcantonio ◽  
Raffaella Muraro ◽  
Gabriella Mincione
Keyword(s):  
Gastric Cancer ◽  
Helicobacter Pylori ◽  
Atrophic Gastritis ◽  
Precancerous Lesions ◽  
Eradication Therapy ◽  
Developed Countries ◽  
Gastric Carcinogenesis ◽  
Gastric Disease ◽  
Type I ◽  
H Pylori

Worldwide, gastric cancer (GC) represents the fifth cancer for incidence, and the third as cause of death in developed countries. Indeed, it resulted in more than 780,000 deaths in 2018. Helicobacter pylori appears to be responsible for the majority of these cancers. On the basis of recent studies, and either alone or combined with additional etiological factors, H. pylori is considered a “type I carcinogen.” Over recent decades, new insights have been obtained into the strategies that have been adopted by H. pylori to survive the acidic conditions of the gastric environment, and to result in persistent infection, and dysregulation of host functions. The multistep processes involved in the development of GC are initiated by transition of the mucosa into chronic non-atrophic gastritis, which is primarily triggered by infection with H. pylori. This gastritis then progresses into atrophic gastritis and intestinal metaplasia, and then to dysplasia, and following Correa’s cascade, to adenocarcinoma. The use of antibiotics for eradication of H. pylori can reduce the incidence of precancerous lesions only in the early stages of gastric carcinogenesis. Here, we first survey the etiology and risk factors of GC, and then we analyze the mechanisms underlying tumorigenesis induced by H. pylori, focusing attention on virulence factor CagA, inflammation, oxidative stress, and ErbB2 receptor tyrosine kinase. Moreover, we investigate the relationships between H. pylori eradication therapy and other diseases, considering not only cardia (upper stomach) cancers and Barrett’s esophagus, but also asthma and allergies, through discussion of the “hygiene hypothesis. ” This hypothesis suggests that improved hygiene and antibiotic use in early life reduces microbial exposure, such that the immune response does not become primed, and individuals are not protected against atopic disorders, asthma, and autoimmune diseases. Finally, we overview recent advances to uncover the complex interplay between H. pylori and the gut microbiota during gastric carcinogenesis, as characterized by reduced bacterial diversity and increased microbial dysbiosis. Indeed, it is of particular importance to identify the bacterial taxa of the stomach that might predict the outcome of gastric disease through the stages of Correa’s cascade, to improve prevention and therapy of gastric carcinoma.

scholarly journals Seroprevelance of Helicobacter pylori Infection among Students of Bingham University, Karu in North-Central Nigeria

2021 ◽  
pp. 38-47
Author(s):  
Abioye, Joshua Omoniyi Kolawole ◽  
Anarado, Kosisochukwu Sylvia ◽  
Babatunde, Seye
Keyword(s):  
Helicobacter Pylori ◽  
Feeding Habits ◽  
Economic Status ◽  
Living Conditions ◽  
Helicobacter Pylori Infection ◽  
P Value ◽  
Chi Square ◽  
Adequate Treatment ◽  
H Pylori ◽  
Stool Analysis

Helicobacter pylori infection occurs worldwide, though the burden differs greatly between countries and within populations. Studies have shown that Helicobacter pylori infection is higher in developing countries, including Nigeria and among populations of low socio-economic status. The aim of this study was to ascertain the prevalence of Helicobacter pylori infection amongst students of Bingham University, Karu, Nassarawa State, Nigeria. A total of 565 blood samples were collected from students with their consents after completing a self-administered questionnaire. Each blood sample was spun for 5 minutes at 1000 rpm to get the serum, which was used to determine the presence of H. pylori antibody using a Helicobacter pylori test cassette. Of the 565 students screened, 31 were found to be positive, giving a prevalence of 5.5% (95%CI=3.6-7.4). Prevalence among the female students was higher at 6.3% in contrast to the male 4.5%, though this difference was not statistically significant (chi-square=0.904, P-value=0.34). Students aged 26-30 years showed the highest prevalence of 8.8% above 4.2%, 5.6% of the age ranges 15-20 and 21-25 years, respectively. Seropositivity of H. pylori increased with students’ year of study, with 100 Level having 9.3%, followed by 6.3% in 200 level. The 300 and 400 Levels had 5.8% and 2.5, respectively. Also, the students who were knowledgeable about the infection and those who were not had 15.7% and 3.2% seroprevalence, respectively. The low prevalence of the infection obtained in this study did not show sex or age differencesand could be as a result of the good sanitary living conditions or good feeding habits of the students. It is recommended that infected students should eat at regular intervals, obtain adequate treatment after stool analysis to confirm the infection, and also practice good sanitary habits. The school authority should keep on improving the living conditions of the students as this will enhance lower prevalence or total elimination of the infection.

scholarly journals Noninvasive Diagnostic Tests for Helicobacter Pylori Infection in Children

2005 ◽  
Vol 19 (7) ◽  
pp. 433-439 ◽  
Author(s):  
Sibylle Koletzko
Keyword(s):  
Helicobacter Pylori ◽  
Breath Test ◽  
Clinical Decision Making ◽  
Age Groups ◽  
Eradication Therapy ◽  
High Sensitivity ◽  
Urea Breath Test ◽  
Helicobacter Pylori Infection ◽  
Noninvasive Test ◽  
H Pylori

Noninvasive tests can be used for the initial diagnosis of Helicobacter pylori infection and to monitor the success of eradication therapy. In populations with a low prevalence of H pylori infection (children living in North America and Europe), a high sensitivity is required to make the test valuable for clinical practice. The13C-urea breath test has been validated in children of different age groups in a significant number of infected and noninfected children in several countries and, thus far, is the only noninvasive test that fulfills sensitivity and specificity quality standards. In studies to date, enzyme immunoassays using monoclonal antibodies to detect H pylori antigen in stool provide excellent results, but the number of children tested, particularly post-treatment, is not sufficient to recommend the test. All other noninvasive stool tests or methods based on the detection of specific antibodies in serum, whole blood, urine or saliva have limited accuracy in comparison with the13C-urea breath test. Therefore, these tests cannot be recommended for clinical decision making in pediatric patients.

scholarly journals Helicobacter pylori infection and hyperemesis gravidarum: a prospective pilot study in India

2019 ◽  
Vol 8 (7) ◽  
pp. 2856
Author(s):  
Akhila M. V. ◽  
Padmasri R.
Keyword(s):  
Socioeconomic Status ◽  
Helicobacter Pylori ◽  
Pregnant Women ◽  
Rural Areas ◽  
Hyperemesis Gravidarum ◽  
Venous Blood ◽  
Tertiary Hospital ◽  
Helicobacter Pylori Infection ◽  
H Pylori ◽  
A Prospective Study

Background: About 80% of all pregnant women experience some form of nausea and vomiting during their pregnancy. Hyperemesis gravidarum, the commonest indication for admission to hospital in the first half of pregnancy affects approximately 0.3%-2.0% of pregnancies. Helicobacter pylori infection has been implicated in the cause of nausea and occasional vomiting in early pregnancy. The objectives of this study are to determine the proportion of H. pylori seropositivity among women with hyperemesis gravidarum (HG) and determine its relation with socio-economic status.Methods: This was a prospective study conducted in a tertiary hospital in Bangalore among 60 pregnant women with HG for a period of 12 months. Venous blood samples were obtained and serum IgG for H. pylori was measured using enzyme-linked immunosorbant assay (ELISA). Details regarding socioeconomic status, recurrence of symptoms and severity were noted.Results: The proportion of H. pylori seropositivity among pregnant women with hyperemesis in our study was 70%.There was a significant increase in severity and recurrence of vomiting among seropositive cases. Women belonging to rural areas had 1.17 times the risk of infection compared to women with urban area. We also found women belonging to the lower socioeconomic status had 0.52 times more risk to develop Helicobacter pylori infection.Conclusions: This study suggests that H. pylori is an independent risk factor for vomiting in pregnancy. Effective treatment and eradication of H pylori infection may help reduce severity and recurrence of vomiting among positive cases thus reducing its adverse consequences.

scholarly journals Efficacy of Twice a Day Bismuth Quadruple Therapy for Second-Line Treatment of Helicobacter pylori Infection

2022 ◽  
Vol 12 (1) ◽  
pp. 56
Author(s):  
Jeemyoung Kim ◽  
Eun Jeong Gong ◽  
Myeongsook Seo ◽  
Hyun Il Seo ◽  
Jong Kyu Park ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Eradication Therapy ◽  
Helicobacter Pylori Infection ◽  
Adverse Event Rate ◽  
Line Treatment ◽  
Second Line ◽  
Current Smoking ◽  
Quadruple Therapy ◽  
Standard Triple Therapy ◽  
H Pylori

Bismuth quadruple therapy (BQT) is an effective treatment for Helicobacter pylori infection. However, frequent dosing schedules of BQT regimen often compromise drug adherence and may affect treatment outcomes. This retrospective study aimed to investigate the efficacy of twice-daily BQT compared to that of four times a day therapy. From August 2018 to November 2020, adult patients who failed first-line standard triple therapy and underwent BQT were eligible. Patients were categorized into two groups according to dosing schedule: (i) the BQT group (n = 213) who received standard BQT administered four times a day; and (ii) the BQTb group (n = 141) who received proton pump inhibitor, bismuth 600 mg, metronidazole 500 mg, and tetracycline 1 g twice a day. The eradication rate did not differ between the BQT (92.5%) and the BQTb groups (90.1%) (p = 0.441). Adherence and adverse event rate were similar between the two groups. Multivariate analysis showed that current smoking was associated with eradication failure; however, dosing frequency was not associated with the efficacy of eradication therapy. This study suggested that twice a day BQT is as effective as four times a day therapy for second-line treatment of H. pylori infection.

scholarly journals Resistotype of Helicobacter pylori isolates: the impact on eradication outcome

2014 ◽  
Vol 63 (5) ◽  
pp. 703-709 ◽  
Author(s):  
Hanafiah Alfizah ◽  
Ahmad Norazah ◽  
Razlan Hamizah ◽  
Mohamed Ramelah
Keyword(s):  
Helicobacter Pylori ◽  
Antibiotic Resistance ◽  
Eradication Therapy ◽  
Fluoroquinolone Resistance ◽  
23S Rrna ◽  
Nonsense Mutations ◽  
Metronidazole Resistance ◽  
Resistant Strains ◽  
H Pylori ◽  
The Impact

Antibiotic resistance is increasing worldwide, and it has been regarded as the main factor reducing the efficacy of Helicobacter pylori therapy. The aim of this study was to determine the phenotype and genotype of antibiotic-resistant strains of H. pylori in the Malaysian population and to evaluate the impact of antibiotic resistance to eradication outcome. One hundred and sixty-one H. pylori isolates were analysed in this study. Metronidazole, clarithromycin, fluoroquinolone, amoxicillin and tetracycline susceptibilities were determined by Etest. PCR followed by DNA sequencing was carried out to determine mutations. The medical records of the patients infected with resistant strains were reviewed to determine the eradication outcome. Metronidazole resistance was encountered in 36.6 % of H. pylori isolates, whereas clarithromycin and fluoroquinolone resistance was observed in 1.2  and 1.9 % of isolates, respectively. All strains tested were susceptible to amoxicillin and tetracycline. Frameshift and nonsense mutations in rdxA and frxA genes resulting in stop codons contributed to metronidazole resistance, which leads to reduced eradication efficacy. A2142G and A2143G mutations of 23S rRNA were identified as causing failure of the eradication therapy. Mutation at either codon 87 or 91 of the gyrA gene was identified in fluoroquinolone-resistant strains. However, the effect of resistance could not be assessed. This study showed that frameshift and nonsense mutations in rdxA or frxA genes and point mutations in the 23S rRNA affected the efficacy of H. pylori eradication therapy.

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