CLINICAL AND MORPHOLOGICAL CHARACTERISTICS OF H. PYLORI-ASSOCIATED GASTRODUODENAL ZONE DISEASES: AGE-RELATED ASPECTS

2021 ◽  
pp. 89-99
Author(s):  
E.M. Shul'gina ◽  
Zh.G. Simonova
Keyword(s):  
Helicobacter Pylori ◽  
Clinical Picture ◽  
Average Length ◽  
Eradication Therapy ◽  
Young Patients ◽  
Morphological Characteristics ◽  
Prospective Clinical Study ◽  
Age Related ◽  
H Pylori ◽  
Gastroduodenal Zone

The aim of the paper is to study the clinical and morphological characteristics of H. pylori-associated gastroduodenal zone diseases, depending on patients’ age. Materials and Methods. Three groups of patients of various ages with H. pylori-associated gastroduodenal zone diseases were formed in the course of a prospective clinical study. We studied the clinical picture, and morphological characteristics of the gastroduodenal zone before and after eradication therapy. Average length of the observation period was 172 days. All patients underwent esophagogastroduodenoscopy with biopsy. Results. Severe dyspeptic disorders were diagnosed in all young patients belonging to group 1 (100 %). The dyspeptic index corresponded to a high degree of severity. Morphological changes in the gastric mucosa were more significant in patients with a less pronounced clinical picture (Groups 2 and 3). In group 3, atrophic transformations of the gastric corpus were found in 30.5 %, atrophic transformations of the pylorus – in 11 %, and intestinal metaplasia – in 2.8 % of patients. Unlike young and middle-aged patients with pronounced dyspeptic syndrome, elderly patients were characterized by a low-symptom clinical picture, which was accompanied by morphological gastroduodenal zone transformations with the possible progression. Conclusions. Effective eradication therapy contributes to clinical, endoscopic and morphological remission of the gastroduodenal zone and prevents the progression of the inflammatory cascade. Key words: Helicobacter pylori, gastroduodenal diseases, eradication therapy, age characteristics. Цель исследования – изучить клинико-морфологические особенности H. рylori-ассоциированных заболеваний гастродуоденальной зоны в зависимости от возраста пациентов. Материалы и методы. В процессе проспективного клинического исследования были сформированы три группы пациентов разного возраста, имеющих H. pylori-ассоциированные заболевания гастродуоденальной зоны. Изучали клиническую картину, морфологические особенности гастродуоденальной зоны до и после эрадикационной терапии. Период наблюдения больных составил в среднем 172 дня. Всем пациентам выполнялась ззофагогастродуоденоскопия с биопсией. Результаты. У 100 % пациентов молодого возраста (I группа) установлены выраженные диспепсические расстройства. Диспепсический индекс соответствовал высокой степени тяжести. Для пациентов II и Ш групп при менее выраженной клинической картине морфологические изменения слизистой оболочки желудка оказались более существенны. В старшей группе (Ш группа) атрофические преобразования тела желудка выявлены у 30,5 % пациентов, привратника желудка – у 11 %, кишечная метаплазия – у 2,8 %. В отличие от пациентов молодого и среднего возраста, имеющих выраженный диспепсический синдром, для пациентов пожилого возраста характерна малосимптомная клиническая картина, которая сопровождалась морфологическими преобразованиями гастродуоденальной зоны с возможностью прогрессирования. Выводы. Эффективная эрадикационная терапия способствует достижению клинико-эндоскопической и морфологической ремиссии состояния гастродуоденальной зоны и создает условия для предотвращения прогрессирования воспалительного каскада. Ключевые слова: Helicobacter pylori, заболевания гастродуоденальной зоны, эрадикационная терапия, возрастные особенности.

Prevalence of Helicobacter pylori infection among blood donors in Saxony-Anhalt, Germany – a region at intermediate risk for gastric cancer

2017 ◽  
Vol 55 (07) ◽  
pp. 653-656 ◽  
Author(s):  
Caspar Franck ◽  
Armin Hoffmann ◽  
Alexander Link ◽  
Christian Schulz ◽  
Kerstin Wuttig ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Helicobacter Pylori ◽  
Blood Donors ◽  
Eradication Therapy ◽  
Surrogate Marker ◽  
University Hospital ◽  
Study Cohort ◽  
Emergency Ward ◽  
Age Related ◽  
H Pylori

Abstract Background In the federal state of Saxony-Anhalt, gastric cancer (GC) incidence ranks among the highest in Germany. Helicobacter pylori prevalence is a surrogate marker for GC risk in a given population. In 2010 we reported an H. pylori seroprevalence of 44.4 % in patients at the emergency ward of the University Hospital of Magdeburg, the capital of Saxony-Anhalt. Our aim is to update these findings in a cohort of healthy blood donors from the same region. Materials and methods The sera of 516 consecutive blood donors (40.1 ± 14.1 years; 286 males and 230 females) were tested for antibodies against H. pylori and CagA. Data on demographics and previous H. pylori eradication therapy were obtained by means of a structured questionnaire. Blood donors with positive serology for H. pylori or CagA and/or history of eradication therapy were classified as H. pylori-positive. Results Overall, 28.9 % of the study cohort were H. pylori-positive. The prevalence was higher in older generations (9 % in 18 – 20 years up to 47 % in 61 – 70 years). In 44.4 % of H. pylori IgG-positive donors, CagA serology was also positive. This proportion was not age-dependent. Study participants with siblings were by trend more often H. pylori-positive (p = 0.066). Conclusion Compared to our previous study in patients at the emergency ward, we found by trend lower age-related H. pylori prevalence rates. In our cohort of healthy blood donors, we confirmed a lower H. pylori prevalence in younger generations.

scholarly journals Guality eradication anti-helicobacter therapy increases the effectiveness of treatment of patients with stable angina pectoris

2021 ◽  
pp. 41-46
Author(s):  
M. N. Prikhodko ◽  
Zh. G. Simonova ◽  
E. P. Kolevatykh
Keyword(s):  
Chronic Gastritis ◽  
Clinical Status ◽  
Eradication Therapy ◽  
Antibiotic Sensitivity ◽  
Prospective Clinical Study ◽  
Group I ◽  
Group Ii ◽  
H Pylori ◽  
Gastroduodenal Zone ◽  
Endoscopic Picture

Aim. On the basis of the complex analysis, to evaluate the efficiency of eradication therapy at patients with stable stenocardia with a combination of chronic gastritis. Material and methods. 46 patients with stable stenocardia with a combination of chronic H. pylori-associated gastritis were included in the open prospective clinical study. Two groups of patients were formed during the study. Patients of group I (n = 25) received eradication therapy in accordance with antibiotic sensitivity of H. pylori strains, patients of group II (n = 21) - without antibiotic sensitivity. In all patients before and after treatment were performed: evaluation of clinical status, laboratory indicators, EGDS with biopsy sampling, diagnosis of H. pylori. Results. The effectiveness of eradication therapy was 86.9%, at the same time, 96% -in group I and 76.2% - in group II. It is established: stabilization of clinical status of patients, improvement of morphological and endoscopic picture of gastroduodenal zone, improvement of laboratory indices. Conclusions. The inclusion of antibiotic-sensitive erication therapy in the algorithm of treatment of patients with stable stenocardia in combination with chronic gastritis allows to achieve high effectiveness of killing the infection Helicobacter pylori. At the same time stabilizes clinical status of patients, laboratory indices, has a positive effect on morphological and endoscopic picture of gastroduodenal zone, preventing progression of metaplastic changes.

CHRONIC GASTRITIS AND OLD AGE: A PROBLEM OR NOT?

2020 ◽  
pp. 30-39
Author(s):  
Zh.G. Simonova ◽  
M.N. Prikhod'ko ◽  
E.M. Shul'gina
Keyword(s):  
Helicobacter Pylori ◽  
Gastric Mucosa ◽  
Elderly Patients ◽  
Old Age ◽  
Chronic Gastritis ◽  
Morphological Changes ◽  
Eradication Therapy ◽  
Prospective Clinical Study ◽  
H Pylori ◽  
Endoscopic Picture

The objective of the paper is to study the clinical and functional characteristics of chronic H. pylori-associated gastritis in the elderly patients. Materials and Methods. A group of elderly patients (n=116) (aged 69.5±3.2) with chronic H. pylori-associated gastritis was formed during a prospective clinical study. All patients underwent esophagogastroduodenoscopy with biopsy. OLGA staging system was used for histological assessment. The dyspeptic index (DI) was used to measure dyspepsia. The patients were followed up for 48 weeks. Results. Dyspepsia was found only in 41.3 % of patients, while 58.7 % of patients had asymptomatic disease progression. Atrophic changes in the gastric mucosa were found in 30.1 % of the trial subjects. The efficacy of the eradication therapy was 88.7 %. During the study, the endoscopic picture of the gastroduodenal zone improved. There was no progression of atrophic and metaplastic changes in the gastric mucosa. Conclusion. Thus, in elderly patients, chronic H. pylori-associated gastritis is often asymptomatic. Eradication of H. pylori infection promotes disease remission and prevents morphological changes in the gastric mucosa. Keywords: chronic gastritis, Helicobacter pylori, atrophic gastritis, dyspepsia, old age, eradication therapy. Цель – изучить клинико-функциональные особенности течения хронического H. pylori-ассоциированного гастрита у лиц пожилого возраста. Материалы и методы. В процессе проспективного клинического исследования была сформирована группа больных (n=116) пожилого возраста (69,5±3,2 года) с хроническим H. pylori-ассоциированным гастритом. Всем больным была выполнена эзофагогастродуоденоскопия с биопсией. Для гистологической оценки применяли классификацию OLGA. Для оценки диспепсического синдрома использовали диспепсический индекс (ДИ). Длительность наблюдения больных составила 48 нед. Результаты. Наличие диспепсического синдрома было установлено у 41,3 % больных, 58,7 % пациентов имели бессимптомное течение заболевания. У 30,1 % обследуемых выявлены атрофические изменения слизистой оболочки желудка. Эффективность проведенной эрадикационной терапии составила 88,7 %. В процессе исследования установлено улучшение эндоскопической картины гастродуоденальной зоны. Отмечено отсутствие прогрессирования атрофических и метапластических изменений слизистой оболочки желудка. Выводы. У больных пожилого возраста течение хронического H. pylori-ассоциированного гастрита чаще имеет бессимптомный характер. Эрадикация инфекции H. pylori способствует ремиссии заболевания и предотвращает морфологические преобразования слизистой оболочки желудка. Ключевые слова: хронический гастрит, Helicobacter pylori, атрофический гастрит, синдром диспепсии, пожилой возраст, эрадикационная терапия.

scholarly journals The cellular and flagella morphologies of ulcerogenic Helicobacter pylori paediatric strains.

2013 ◽  
Vol 19 (S4) ◽  
pp. 21-22
Author(s):  
I. Vitoriano ◽  
K.D. Saraiva-Pava ◽  
A.P.A. Matos ◽  
F.F. Vale ◽  
A. Santos ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Optical Microscopy ◽  
Young Patients ◽  
Rare Event ◽  
Uranyl Acetate ◽  
Bacterial Suspension ◽  
Antioxidant Defences ◽  
Tem Analysis ◽  
Thin Sections ◽  
H Pylori

Helicobacter pylori is a pathogenic spiral-shaped, microaerophilic, gram-negative bacterium, that inhabits the human stomach. Infection is usually acquired during childhood and always elicits an acute immune response that is, however, inefficient in bacteria clearance. Therefore, in the absence of effective treatment, infection and gastritis (non ulcer dyspepsia, NUD) persist throughout the patient’s life. Depending on its severity and pattern, in about 15% of infected adults, this silent destruction of the gastric mucosa may further progress to peptic ulcer disease (PUD) (gastric and duodenal ulcers, GU and DU respectively) and/or gastric cancer. Infection with H. pylori is also the major cause for the development of paediatric PUD, a rare event that may occur shortly after infection. In addition to the still undisclosed genetic susceptibility of these young patients, the virulence of the implicated H. pylori strain plays a crucial role in the paediatric PUD pathogenesis. Recently, we proved by in vitro infection assays that, compared with paediatric NUD-associated isolates, a group of paediatric ulcerogenic-strains present a greater ability to induce a marked decrease in the gastric cells viability and to cause them severe cytoskeleton damage and mucins’ production/secretion impairment. Moreover, we showed that their enhanced virulence result from a synergy between the ability to better adapt to the hostility of their niche and the expression of cagA, vacAs1, oipA ‘‘on’’ status, homB and jhp562 virulence factors. Accordingly, these ulcerogenic strains share a particular proteome profile, providing them with better antioxidant defences, a metabolism favouring the biosynthesis of aromatic amino acids and higher motility.We are now characterizing/comparing the cellular and flagella morphologies of H. pylori strains isolated from Portuguese children, associated with DU, GU or NUD, belonging to the vast and multiethnic collection of the Instituto Nacional de Saúde Dr. Ricardo Jorge (Portugal). For that, bacteria were grown in H. pylori selective medium (Biogerm, Maia, Portugal) at 37ºC in a microaerobic environment (Anoxomat®, MART Microbiology BV, Drachten, The Netherlands) for 24 h. For Leifson staining analysis, a drop of each bacterial suspension (in PBS) was spread in cleaned microscope slides, stained with the Leifson dye solution until a golden film developed on the dye surface and a precipitate appeared throughout the sample, and analysed by optical microscopy. For Transmission-Electronic-Microscopy (TEM) studies bacterial pellets were fixed sequentially in glutaraldehyde, osmium tetroxide and uranyl acetate, dehydrated in ethanol and embedded in Epon-Araldite. Thin sections contrasted with uranyl acetate and lead citrate were observed with a JEOL 100-SX electron microscope.Corroborating the better swimming abilities of the PUD strains, as previously shown by motility assays, optical microscopy analysis of Leifson stained slides demonstrated marked differences in the morphology of the studied strains (Figure 1). The H. pylori strain associated with DU (Hp 1152/04) seem longer than all the others and, in contrast, that associated with GU (Hp 499/02) is the shortest one and presents a, more pronounced, spiral morphology. Moreover, our preliminary data on TEM analysis indicate the presence of more abundant and apparently more organized flagella in the GU-associated strain Hp 499/02, in contrast to the NUD control strain, Hp 655/99 (Figure 2).Work supported by Research Grant 2011 – Sociedade Portuguesa de Gastrenterologia.

scholarly journals MALT lymphoma: epidemiology, clinical diagnosis and treatment

2018 ◽  
Vol 11 (3) ◽  
pp. 187-193 ◽  
Author(s):  
Petruta Violeta Filip ◽  
◽  
Denisa Cuciureanu ◽  
Laura Sorina Diaconu ◽  
Ana Maria Vladareanu ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
B Cell ◽  
Malt Lymphoma ◽  
Cell Lymphoma ◽  
Gastric Lymphoma ◽  
Eradication Therapy ◽  
B Cell Lymphoma ◽  
Gastric Malt Lymphoma ◽  
H Pylori

Primary gastric lymphoma (PGL) represents a rare pathology, which can be easily misdiagnosed because of unspecific symptoms of the digestive tract. Histologically, PGL can vary from indolent marginal zone B-cell lymphoma of the mucosa-associated lymphoid tissue (MALT) to aggressive diffuse large B-cell lymphoma (DLBCL). During the years, clinical trials revealed the important role of Helicobacter pylori (H. pylori) in the pathogenesis of gastric MALT lymphoma. Infection with Helicobacter pylori is an influential promoter of gastric lymphomagenesis initiation. Long-term studies revealed that eradication therapy could regress gastric lymphomas.

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 Can probiotics improve efficiency and safety profile of triple Helicobacter pylori eradication therapy? A prospective randomized study

2016 ◽  
Vol 73 (11) ◽  
pp. 1044-1049 ◽  
Author(s):  
Sasa Grgov ◽  
Tomislav Tasic ◽  
Biljana Radovanovic-Dinic ◽  
Daniela Benedeto-Stojanov
Keyword(s):  
Helicobacter Pylori ◽  
Randomized Study ◽  
Eradication Therapy ◽  
Saccharomyces Boulardii ◽  
Rapid Urease Test ◽  
Group I ◽  
Urease Test ◽  
Probiotic Strains ◽  
The Difference ◽  
H Pylori

Background/Aim. Some studies suggest the benefit of applying different probiotic strains in combination with antibiotics in the eradication of Helicobacter pylori (H. pylori) infection. The aim of this study was to evaluate the effect of co-administration of multiple probiotic strains with triple H. pylori eradication therapy. Methods. This prospective study included 167 patients with dyspeptic symptoms and chronic gastritis who were diagnosed with H. pylori infection and randomized into two groups. The group I of 77 patients underwent triple eradication therapy, for 7 days, with lansoprazole, 2 ? 30 mg half an hour before the meal, amoxicillin 2 ? 1.000 mg per 12 hours and clarithromycin 2 ? 500 mg per 12 hours. After the 7th day of the therapy, lansoprazole continued at a dose of 30 mg for half an hour before breakfast for 4 weeks. The group II of 90 patients received the same treatment as the patients of the group I, with the addition of the probiotic cultures in the form of a capsule comprising Lactobacillus Rosell-52, Lactobacillus Rosell-11, Bifidobacterium Rosell-1755 and Saccharomyces boulardii, since the beginning of eradication for 4 weeks. Eradication of H. pylori infection control was performed 8 weeks after the therapy by rapid urease test and histopathologic evaluation of endoscopic biopsies or by stool antigen test for H. pylori. Results. Eradication of H. pylori infection was achieved in 93.3% of the patients who received probiotics with eradication therapy and in 81.8% of patients who were only on eradication therapy without probiotics. The difference in eradication success was statistically significant, (p < 0.05). The incidence of adverse effects of eradication therapy was higher in the group of patients who were not on probiotic (28.6%) than in the group that received probiotic (17.7%), but the difference was not statistically significant. Conclusion. Multiple probiotic strains addition to triple eradication therapy of H. pylori achieves a significantly better eradication success, with fewer side effects of antibiotics.

scholarly journals The efficacy and safety of quadruple therapy without bismuth (concomitant therapy) in the treatment of patients with Helicobacter pylori - associated gastric and duodenal peptic ulcer disease

2019 ◽  
Vol 91 (8) ◽  
pp. 28-33 ◽  
Author(s):  
A M Veliev ◽  
I V Maev ◽  
D N Andreev ◽  
D T Dicheva ◽  
A V Zaborovskii ◽  
...  
Keyword(s):  
Duodenal Ulcer ◽  
Helicobacter Pylori ◽  
Side Effects ◽  
Triple Therapy ◽  
Eradication Therapy ◽  
Test System ◽  
Efficacy And Safety ◽  
Concomitant Therapy ◽  
Quadruple Therapy ◽  
H Pylori

Aim. Evaluation of the efficacy and safety of quadrupletherapy without bismuth (concomitant therapy) in patients with Helicobacter pylori - associated gastric ulcer and duodenal ulcer in the framework of a comparative research in the population of patients in Russia. Materials and methods. A prospective randomized trial was conducted, which included 210 patients with H. pylori - associated gastric/duodenal ulcer without complications. During the process of randomization, the patients were divided into three equal groups (n=70) depending on the prescribed 10-day scheme of eradication therapy (ET): the first group received the classic triple scheme (Omeprazole 20 mg 2 times a day, Amoxicillin 1000 mg 2 times a day and Clarithromycin 500 mg 2 times a day); the second group received quadruple therapy with bismuth drugs (Omeprazole 20 mg 2 times a day, Tetracycline 500 mg 4 times a day, Metronidazole 500 mg 3 times a day, Bismuth subcitrate potassium 120 mg 4 times a day); the third group received quadruple therapy without bismuth - concomitant therapy (Omeprazole 20 mg 2 times a day, Amoxicillin 1000 mg 2 times a day, Clarithromycin 500 mg 2 times a day and Metronidazole 500 mg 2 times a day). Diagnostics of H. pylori infection during screening and control of eradication was carried out via the fast urease biopsy sample test and urea breath test system. Control of the effectiveness of ET of the microorganism was carried out not earlier than 4 weeks after the end of the treatment. During the course of therapy, the frequency of development of side effects was assessed using a special questionnaire. Results and discussion. The effectiveness of triple therapy was 72.8% (ITT; 95% CI of 62.17-83.54) and 78,4% (PP; 95% CI 68.19-88.72); quadruple therapy with the preparation of bismuth - 80.0% (ITT; 95% CI 70.39-89.6) and 84,8% (PP; 95% CI, 75.96-93.73); quadruple therapy without bismuth - concomitant therapy - 84.2% (ITT; 95% CI 75.54-93.02) and 92.1% (PP; 95% CI 85.43-98.94). Quadruple therapy without bismuth was reliably more effective than the classical triple therapy in the PP selection (p=0.044883). Statistical analysis showed a tendency to poorer effectiveness of ET in patients who had previously used antibiotic therapy (OR 0.4317; 95% CI 0.1776-1.049), and in individuals with a rapid metabolism genotype - CYP2C19*1/*1 (OR 0.12; 95% CI 0.005848-2.4624). The frequency of development of side effects during the use of triple therapy was 18.5% (95% CI of 9.23-27.91), when using quadruple therapy with bismuth - 20.0% (95% CI 10.39-29.6), and with the use of quadruple therapy without bismuth - concomitant therapy - 24.2% (95% CI 13.98-34.58). Conclusion. This prospective randomized study demonstrated the high efficiency of quadruple therapy without bismuth (concomitant therapy) in the framework of eradication of H. pylori infection in Russia.

Helicobacter pylori causes gastrointestinal hemorrhage in patients with congenital bleeding disorders

2003 ◽  
Vol 89 (04) ◽  
pp. 741-746 ◽  
Author(s):  
Ann-Sofie Rehnberg ◽  
Marju Hein ◽  
Olga Hegedus ◽  
Per Lindmarker ◽  
Per Hellström ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Gastrointestinal Hemorrhage ◽  
Breath Test ◽  
Eradication Therapy ◽  
Urea Breath Test ◽  
Von Willebrand Disease ◽  
Bleeding Disorders ◽  
Ulcer Disease ◽  
H Pylori ◽  
One Year

Summary Helicobacter pylori (H. pylori) infection is associated with peptic ulcer disease and gastric cancer. The eradication of H. pylori is of special interest in patients with congenital bleeding disorders, for whom treatment of gastrointestinal hemorrhage with factor concentrates is costly. The prevalence of H. pylori varies between different populations and identification of high-risk subgroups may allow for more targeted screening and eradication of the infection. We performed a 5-year retrospective study of gastrointestinal bleeding, combined with screening and treatment for H. pylori and a long-term prospective follow-up in 168 Swedish and 23 Estonian patients with hemophilia or von Willebrand disease. The prevalence of seropositivity was lower in Sweden than in Estonia (28 versus 48%, p = 0.03), lower in native Swedes than in non-Nordic immigrants to Sweden (20 versus 76%, p = 0.0001) and lower in patients less than 40 years of age than older patients (16 versus 38%, p = 0.002). The incidence of gastrointestinal hemorrhages among the 35 Swedish patients with active H. pylori infection, confirmed by a urea breath test, was 6.0 per 100 patient-years before eradication therapy versus 1.7 during the prospective followup. A negative urea breath test one month after therapy always remained negative after one year. Screening, followed by treatment of all infected patients, yielded a reduction of direct costs over a 5-year period of 130 US-$ per screened patient. We conclude that screening and eradication therapy for infection with H. pylori in patients with congenital bleeding disorders is an effective and economic strategy.

Evaluation of the Epidemiologic Efficacy of Eradicating Helicobacter pylori on Development of Gastric Cancer

2019 ◽  
Vol 41 (1) ◽  
pp. 97-108 ◽  
Author(s):  
Fujiao Duan ◽  
Chunhua Song ◽  
Jintao Zhang ◽  
Peng Wang ◽  
Hua Ye ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Helicobacter Pylori ◽  
Population Attributable Risk ◽  
Eradication Therapy ◽  
Attributable Risk ◽  
Chinese Patients ◽  
Controlled Trials ◽  
Mixed Effect ◽  
H Pylori ◽  
Development Of Gastric Cancer

Abstract Eradication of Helicobacter pylori colonization has been reported to affect the progression of gastric cancer. A comprehensive literature search was performed from 1997 to 2017 using electronic databases. All randomized controlled trials (RCTs) and nonrandomized controlled trials (non-RCT) evaluated the effect of H. pylori eradication on development of gastric cancer. Four RCTs and 9 non-RCTs were included (n = 40,740 participants; 321,269 person-years). Overall, H. pylori eradication therapy was associated with a significantly reduced risk of gastric cancer (incidence rate ratio (IRR) = 0.52, 95% confidence interval (CI): 0.41, 0.65). Results of mixed-effect Poisson regression meta-analysis were similar to those of traditional meta-analyses. In stratified analyses, the IRRs were 0.59 (95% CI: 0.41, 0.86) in RCTs and 0.48 (95% CI: 0.36, 0.64) in non-RCTs. The IRRs were 0.45 (95% CI: 0.34, 0.61) in patients and 0.63 (95% CI: 0.44, 0.90) in the general population. Moreover, the relative risk reduction was approximately 77% on the development of noncardiac gastric cancer with H. pylori eradication therapy in China. Attributable risk percentage and population attributable risk percentage for Chinese patients were 77.08% and 75.33%, respectively, and for Japanese patients were 57.80% and 45.99%, respectively. H. pylori eradication therapy reduces the risk of noncardiac gastric cancer development. The findings indicate the importance of early intervention with H. pylori eradication therapy from the perspective of epidemiology.

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