1
|
Xu L, Li XT, Ur-Rahman I, Zhang C, Qi YB, Hu RB, Li K, Awadh AM, Ma J, Xiao W, Gao SJ, Yang PL, Wang Y, Peng QS, Wang T, Zheng QM, Ding SZ. Global H. pylori recurrence, recrudescence, and re-infection status after successful eradication in pediatric patients: a systematic review and meta-analysis. J Gastroenterol 2024; 59:668-681. [PMID: 38814335 DOI: 10.1007/s00535-024-02114-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/26/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND Little information is available regarding global H. pylori recurrence, recrudescence, and re-infection in pediatric patients after successful eradication, nor are their influencing factors clear. We conducted a systematic review and meta-analysis to determine global H. pylori recurrence status and its influencing factors in children and adolescents to improve infection management and disease prevention. METHODS Published studies on H. pylori recurrence in children and adolescents were collected from major public databases until January 2023. H. pylori recurrences were determined using randomized-effect and fixed-effect models. Stratified analysis was performed based on various regions, countries, publication time, human development indexes (HDIs), and ages. RESULTS A total of 3310 relevant articles were screened, and 30 articles (1915 participants) were finally enrolled for analysis. The overall H. pylori recurrence rate was 19%, and the annual recurrence rate was 13%. In stratified analysis, H. pylori annual recurrence rate in Asian children was higher than that in Europe (17% vs. 6%) and higher in developing countries than in developed countries (18% vs. 5%). In children aged ≤ 5 years, ≤ 10 years, and 11-18 years, the H. pylori recurrence rates were 30%, 14%, and 8%, respectively. H. pylori recrudescence and re-infection rates were 6% and 10%, respectively, and its recurrence was inversely correlated with HDI. CONCLUSIONS These results provide insights into global H. pylori recurrence, annual recurrence, recrudescence, and re-infection status in pediatric population. The stratified analysis revealed the pattern and seriousness of infection, which requires further efforts to improve patient care.
Collapse
Affiliation(s)
- Lu Xu
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, No. 7 Wei Wu Road, Jin Shui District, Zhengzhou, 450003, Henan, China
| | - Xiao-Ting Li
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, No. 7 Wei Wu Road, Jin Shui District, Zhengzhou, 450003, Henan, China
| | - Ishtiaq Ur-Rahman
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, No. 7 Wei Wu Road, Jin Shui District, Zhengzhou, 450003, Henan, China
| | - Chen Zhang
- Department of Gastroenterology and Hepatology, Henan University People's Hospital, and Henan Provincial People's Hospital, Zhengzhou, 450003, Henan, China
| | - Ya-Bin Qi
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, No. 7 Wei Wu Road, Jin Shui District, Zhengzhou, 450003, Henan, China
- Department of Gastroenterology and Hepatology, Henan University People's Hospital, and Henan Provincial People's Hospital, Zhengzhou, 450003, Henan, China
| | - Ruo-Bing Hu
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, No. 7 Wei Wu Road, Jin Shui District, Zhengzhou, 450003, Henan, China
- Department of Gastroenterology and Hepatology, Henan University People's Hospital, and Henan Provincial People's Hospital, Zhengzhou, 450003, Henan, China
| | - Kuan Li
- Department of Gastroenterology and Hepatology, Henan University People's Hospital, and Henan Provincial People's Hospital, Zhengzhou, 450003, Henan, China
- Department of Infectious Disease, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, 450003, Henan, China
| | - Abdun Mohammed Awadh
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, No. 7 Wei Wu Road, Jin Shui District, Zhengzhou, 450003, Henan, China
| | - Jing Ma
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, No. 7 Wei Wu Road, Jin Shui District, Zhengzhou, 450003, Henan, China
- Department of Gastroenterology and Hepatology, Henan University People's Hospital, and Henan Provincial People's Hospital, Zhengzhou, 450003, Henan, China
| | - Wei Xiao
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, No. 7 Wei Wu Road, Jin Shui District, Zhengzhou, 450003, Henan, China
- Department of Gastroenterology and Hepatology, Henan University People's Hospital, and Henan Provincial People's Hospital, Zhengzhou, 450003, Henan, China
| | - San-Jun Gao
- Microbiom Laboratory, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, 450003, Henan, China
| | - Pei-Li Yang
- Department of Gastroenterology and Hepatology, Huangchuan People's Hospital, No. 104 Yuejin Road, Huangchuan, 465150, Henan, China
| | - Yue Wang
- Department of Gastroenterology and Hepatology, Huangchuan People's Hospital, No. 104 Yuejin Road, Huangchuan, 465150, Henan, China
| | - Qing-Song Peng
- Department of Gastroenterology and Hepatology, Huangchuan People's Hospital, No. 104 Yuejin Road, Huangchuan, 465150, Henan, China
| | - Tao Wang
- Department of Gastroenterology and Hepatology, Huangchuan People's Hospital, No. 104 Yuejin Road, Huangchuan, 465150, Henan, China
| | - Qing-Ming Zheng
- Department of Gastroenterology and Hepatology, Huangchuan People's Hospital, No. 104 Yuejin Road, Huangchuan, 465150, Henan, China
| | - Song-Ze Ding
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, No. 7 Wei Wu Road, Jin Shui District, Zhengzhou, 450003, Henan, China.
- Department of Gastroenterology and Hepatology, Henan University People's Hospital, and Henan Provincial People's Hospital, Zhengzhou, 450003, Henan, China.
- Department of Gastroenterology and Hepatology, Huangchuan People's Hospital, No. 104 Yuejin Road, Huangchuan, 465150, Henan, China.
| |
Collapse
|
2
|
Kato S, Shimizu T, Toyoda S, Gold BD, Ida S, Ishige T, Fujimura S, Kamiya S, Konno M, Kuwabara K, Ushijima K, Yoshimura N, Nakayama Y. The updated JSPGHAN guidelines for the management of Helicobacter pylori infection in childhood. Pediatr Int 2020; 62:1315-1331. [PMID: 32657507 PMCID: PMC7839701 DOI: 10.1111/ped.14388] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/20/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Abstract
The Japan Pediatric Helicobacter pylori Study Group published the first guidelines on childhood H. pylori infection in 1997. They were later revised by the Japanese Society for Pediatric Gastroenterology, Hepatology and Nutrition (JSPGHAN). The H. pylori eradication rates, when employing triple therapy with amoxicillin and clarithromycin, currently recommended as the first-line therapy of H. pylori infection in Japan, have substantially decreased, creating an important clinical problem worldwide. In Japanese adults, the "test-and-treat" strategy for H. pylori infection is under consideration as an approach for gastric cancer prevention. However, the combined North American and European pediatric guidelines have rejected such a strategy for asymptomatic children. As risk for gastric cancer development is high in Japan, determining whether the "test-and-treat" strategy can be recommended in children has become an urgent matter. Accordingly, the JSPGHAN has produced a second revision of the H. pylori guidelines, which includes discussion about the issues mentioned above. They consist of 19 clinical questions and 34 statements. An H. pylori culture from gastric biopsies is recommended, not only as a diagnostic test for active infection but for antimicrobial susceptibility testing to optimize eradication therapy. Based upon antimicrobial susceptibility testing of H. pylori strains (especially involving clarithromycin), an eradication regimen including use of the antibiotics to which H. pylori is susceptible is recommended as the first-line therapy against H. pylori-associated diseases. The guidelines recommend against a "test-and-treat" strategy for H. pylori infection for asymptomatic children to protect against the development of gastric cancer because there has been no evidence supporting this strategy.
Collapse
Affiliation(s)
- Seiichi Kato
- Kato Children’s ClinicNatoriJapan
- Department of Infectious diseasesKyorin University School of MedicineTokyoJapan
| | - Toshiaki Shimizu
- Department of Pediatrics and Adolescent MedicineJuntendo University Graduate School of MedicineTokyoJapan
| | | | | | - Shinobu Ida
- Department of Pediatric Gastroenterology and EndocrinologyOsaka Women’s and Children’s HospitalOsakaJapan
| | - Takashi Ishige
- Department of PediatricsGunma University Graduate School of MedicineMaebashiJapan
| | - Shigeru Fujimura
- Division of Clinical Infectious Diseases & ChemotherapyTohoku Medical and Pharmaceutical University Graduate School of Pharmaceutical SciencesSendaiJapan
| | - Shigeru Kamiya
- Department of Infectious diseasesKyorin University School of MedicineTokyoJapan
| | - Mutsuko Konno
- Department of PediatricsSapporo Kosei General HospitalSapporoJapan
| | - Kentaro Kuwabara
- Department of PediatricsHiroshima City Hiroshima Citizens HospitalHiroshimaJapan
| | - Kosuke Ushijima
- Department of Pediatrics and Child HealthKurume University School of MedicineKurumeJapan
| | | | - Yoshiko Nakayama
- Department of PediatricsShinshu University School of MedicineMatsumotoJapan
| | | |
Collapse
|
3
|
Qureshi N, Li P, Gu Q. Probiotic therapy in Helicobacter pylori infection: a potential strategy against a serious pathogen? Appl Microbiol Biotechnol 2019; 103:1573-1588. [PMID: 30610283 DOI: 10.1007/s00253-018-09580-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 12/18/2022]
Abstract
Helicobacter pylori is a highly prevalent human pathogen responsible for chronic inflammation of the gastric tissues, gastroduodenal ulcers, and cancer. The treatment includes a pair of antibiotics with a proton pump inhibitor PPI. Despite the presence of different treatments, the infection rate is still increasing both in developed and developing states. The challenge of treatment failure is greatly due to the resistance of H. pylori to antibiotics and its side effects. Probiotics potential to cure H. pylori infection is well-documented. Probiotics combined with conventional treatment regime appear to have great potential in eradicating H. pylori infection, therefore, provide an excellent alternative approach to manage H. pylori load and its threatening disease outcome. Notably, anti-H. pylori activity of probiotics is strain specific,therefore establishing standard guidelines regarding the dose and formulation of individual strain is inevitable. This review is focused on probiotic's antagonism against H. pylori summarizing their three main potential aspects: their efficiency (i) as an alternative to H. pylori eradication treatment, (ii) as an adjunct to H. pylori eradication treatment and (iii) as a vaccine delivery vehicle.
Collapse
Affiliation(s)
- Nuzhat Qureshi
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Department of Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, People's Republic of China
| | - Ping Li
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Department of Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, People's Republic of China
| | - Qing Gu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Department of Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, People's Republic of China.
| |
Collapse
|
4
|
Namkin K, Zardast M, Basirinejad F. Saccharomyces Boulardii in Helicobacter Pylori Eradication in Children: A Randomized Trial From Iran. IRANIAN JOURNAL OF PEDIATRICS 2016; 26:e3768. [PMID: 26848376 PMCID: PMC4733292 DOI: 10.5812/ijp.3768] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 10/21/2015] [Accepted: 11/03/2015] [Indexed: 02/07/2023]
Abstract
Background: Helicobacter pylori infects around 50% of the human population and is asymptomatic in 70% of the cases. H. pylori eradication in childhood will not only result in peptic symptoms relief, but will also prevent late-term complications such as cancer. Today, probiotics are being increasingly studied in the treatment of gastrointestinal infections as an alternative or complement to antibiotics. Objectives: In this study we aimed to assess the effect of S. boulardii supplementation on H. pylori eradication among children in our region. Patients and Methods: In this randomized double-blind placebo-controlled clinical trial 28 asymptomatic primary school children with a positive H. pylori stool antigen (HpSA) exam were randomly allocated into the study group, receiving Saccharomyces boulardii, and the control group receiving placebo capsules matched by shape and size, for one month. The children were followed up weekly and were reinvestigated four to eight weeks after accomplished treatment by HpSA testing. The significance level was set at P < 0.05. Results: 24 children completed the study. The mean HpSA reduced from 0.40 ± 0.32 to 0.21 ± 0.27 in the study group, indicating a significant difference (P = 0.005). However, such difference was not observed in the control group (P = 0.89). Moreover, the HpSA titer showed a 0.019 ± 0.19 decrease in the study group whereas the same value was 0.0048 ± 0.12 for the controls, again stating a significant difference (P = 0.01). Conclusions: Saccharomyces boulardii has a positive effect on reducing the colonization of H. pylori in the human gastrointestinal system but is not capable of its eradication when used as single therapy.
Collapse
Affiliation(s)
- Kokab Namkin
- Department of Pediatrics, Valieasr Hospital, Birjand University of Medical Sciences, Birjand, IR Iran
| | - Mahmood Zardast
- Valieasr Hospital, Birjand University of Medical Sciences, Birjand, IR Iran
| | - Fatemeh Basirinejad
- Valieasr Hospital, Birjand University of Medical Sciences, Birjand, IR Iran
- Corresponding author: Fatemeh Basirinejad, Valieasr Hospital, Birjand University of Medical Sciences, Birjand, IR Iran. Tel: +98-5136057487, Fax: +98-5136093201, E-mail:
| |
Collapse
|
5
|
Namkin K, Zardast M, Basirinejad F. Saccharomyces Boulardii in Helicobacter Pylori Eradication in Children: A Randomized Trial From Iran. IRANIAN JOURNAL OF PEDIATRICS 2016. [PMID: 26848376 DOI: 10.5812/ijp.37658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Helicobacter pylori infects around 50% of the human population and is asymptomatic in 70% of the cases. H. pylori eradication in childhood will not only result in peptic symptoms relief, but will also prevent late-term complications such as cancer. Today, probiotics are being increasingly studied in the treatment of gastrointestinal infections as an alternative or complement to antibiotics. OBJECTIVES In this study we aimed to assess the effect of S. boulardii supplementation on H. pylori eradication among children in our region. PATIENTS AND METHODS In this randomized double-blind placebo-controlled clinical trial 28 asymptomatic primary school children with a positive H. pylori stool antigen (HpSA) exam were randomly allocated into the study group, receiving Saccharomyces boulardii, and the control group receiving placebo capsules matched by shape and size, for one month. The children were followed up weekly and were reinvestigated four to eight weeks after accomplished treatment by HpSA testing. The significance level was set at P < 0.05. RESULTS 24 children completed the study. The mean HpSA reduced from 0.40 ± 0.32 to 0.21 ± 0.27 in the study group, indicating a significant difference (P = 0.005). However, such difference was not observed in the control group (P = 0.89). Moreover, the HpSA titer showed a 0.019 ± 0.19 decrease in the study group whereas the same value was 0.0048 ± 0.12 for the controls, again stating a significant difference (P = 0.01). CONCLUSIONS Saccharomyces boulardii has a positive effect on reducing the colonization of H. pylori in the human gastrointestinal system but is not capable of its eradication when used as single therapy.
Collapse
Affiliation(s)
- Kokab Namkin
- Department of Pediatrics, Valieasr Hospital, Birjand University of Medical Sciences, Birjand, IR Iran
| | - Mahmood Zardast
- Valieasr Hospital, Birjand University of Medical Sciences, Birjand, IR Iran
| | | |
Collapse
|
6
|
Weiner N, Shaoul R. Impact of Age, Gender, and Addition of Probiotics on Treatment Success for Helicobacter pylori in Children. Glob Pediatr Health 2015; 2:2333794X15607798. [PMID: 27335981 PMCID: PMC4784617 DOI: 10.1177/2333794x15607798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The primary objective of this study was to evaluate the effect of age, gender, and the use of probiotics with standard treatment regimen on Helicobacter pylori eradication. Based on endoscopic findings and clinical presentation, selected patients were treated with standard triple therapy (omeprazole, clarithromycin, and amoxicillin). Those who failed were offered a repeat treatment with omeprazole, metronidazole, and amoxicillin. After the publications of the possible advantages of probiotic treatment on H pylori eradication, the probiotic agent “Probiotica Forte” was routinely added to the treatment. Eradication was noted for 94/130 patients (72%) and for 128/197 patients (65%) with or without probiotic agent, respectively (P = .23). For second-line treatment eradication was noted in 33/46 (72%) and in 9/20 (45%) with or without probiotic agent, respectively (P = .053). The addition of probiotics may improve eradication success especially in addition to second-line treatment.
Collapse
Affiliation(s)
- Noam Weiner
- Meyer Children's Hospital of Haifa, Haifa, Israel
| | - Ron Shaoul
- Meyer Children's Hospital of Haifa, Haifa, Israel
| |
Collapse
|
7
|
Sjökvist Ottsjö L, Flach CF, Nilsson S, de Waal Malefyt R, Walduck AK, Raghavan S. Defining the Roles of IFN-γ and IL-17A in Inflammation and Protection against Helicobacter pylori Infection. PLoS One 2015; 10:e0131444. [PMID: 26168305 PMCID: PMC4500503 DOI: 10.1371/journal.pone.0131444] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 06/02/2015] [Indexed: 01/13/2023] Open
Abstract
CD4+ T cells have been shown to be essential for vaccine-induced protection against Helicobacter pylori infection. However, the effector mechanisms leading to reductions in the gastric bacterial loads of vaccinated mice remain unclear. We have investigated the function of IFN-γ and IL-17A for vaccine-induced protection and inflammation (gastritis) using IFN-γ-gene-knockout (IFN-γ-/-) mice, after sublingual or intragastric immunization with H. pylori lysate antigens and cholera toxin. Bacteria were enumerated in the stomachs of mice and related to the gastritis score and cellular immune responses. We report that sublingually and intragastrically immunized IFN-γ-/- mice had significantly reduced bacterial loads similar to immunized wild-type mice compared to respective unimmunized infection controls. The reduction in bacterial loads in sublingually and intragastrically immunized IFN-γ-/- mice was associated with significantly higher levels of IL-17A in stomach extracts and lower gastritis scores compared with immunized wild-type mice. To study the role of IL-17A for vaccine-induced protection in sublingually immunized IFN-γ-/- mice, IL-17A was neutralized in vivo at the time of infection. Remarkably, the neutralization of IL-17A in sublingually immunized IFN-γ-/- mice completely abolished protection against H. pylori infection and the mild gastritis. In summary, our results suggest that IFN-γ responses in the stomach of sublingually immunized mice promote vaccine-induced gastritis, after infection with H. pylori but that IL-17A primarily functions to reduce the bacterial load.
Collapse
Affiliation(s)
| | - Carl-Fredrik Flach
- Department of Microbiology & Immunology, University of Gothenburg, Gothenburg, Sweden
| | - Staffan Nilsson
- Department of Mathematical Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Rene de Waal Malefyt
- Department of Immunology, Merck Research Laboratories, Palo Alto, California, United States of America
| | - Anna K. Walduck
- School of Applied Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Sukanya Raghavan
- Department of Microbiology & Immunology, University of Gothenburg, Gothenburg, Sweden
- * E-mail:
| |
Collapse
|
8
|
Nguyen TVH, Bengtsson C, Nguyen GK, Yin L, Hoang TTH, Phung DC, Sörberg M, Granström M. Age as risk factor for Helicobacter pylori recurrence in children in Vietnam. Helicobacter 2012; 17:452-7. [PMID: 23066789 DOI: 10.1111/j.1523-5378.2012.00968.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND The determinants for acquisition of Helicobacter pylori infection remain incompletely understood. The study aim was to investigate risk factors for recurrence in children in Vietnam during 1 year immediately following successful H. pylori eradication. MATERIALS AND METHODS In a prospective longitudinal study, 136 children, 3-15 years of age, were seen every 3 months for a total of four visits. Helicobacter pylori infection status was determined by an antigen-in-stool test (Premier Platinum HpSA PLUS) on samples obtained at each visit. A questionnaire was filled out at the start of the study. RESULTS After 1 year, 30 children had become H. pylori positive, while 17 were lost to follow-up. Low age was the most prominent independent risk factor for recurrence: adjusted hazard ratio (HR) among children aged 3-4, 5-6, and 7-8 years, relative to those aged 9-15 years, were, respectively, 14.3 [95% CI 3.8-53.7], 5.4 [1.8-16.3] and 2.6 [0.7-10.4]. Surprisingly, female sex tended to be associated with increased risk (adjusted HR among girls relative to boys 2.5 [95% CI 1.1-5.9]). No other factors such as sibship size, birth order, bed sharing, sanitary standards, or factual antibiotic dose per kilo bodyweight in the eradication trial were found to be significant risk factors for re-infection. CONCLUSIONS The main risk factor for recurrence with H. pylori was found to be age, with the youngest children running the greatest risk. The finding lends support to the observation that early childhood may be the main age of acquisition of H. pylori infection and for postponing attempts of eradication in high-prevalence areas unless motivated for medical reasons.
Collapse
Affiliation(s)
- Thi Viet Ha Nguyen
- Unit of Clinical Microbiology, Department of Microbiology, Tumor- and Cell Biology (MTC), Karolinska Institutet and Clinical Microbiology, Karolinska University Hospital Solna, Stockholm, Sweden
| | | | | | | | | | | | | | | |
Collapse
|
9
|
Zevit N, Balicer RD, Cohen HA, Karsh D, Niv Y, Shamir R. Inverse association between Helicobacter pylori and pediatric asthma in a high-prevalence population. Helicobacter 2012; 17:30-5. [PMID: 22221613 DOI: 10.1111/j.1523-5378.2011.00895.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Helicobacter pylori-associated disease has led to aggressive diagnostic and eradication protocols that are partially responsible for the decrease in prevalence of H. pylori carriage. Recent evidence indicates that in low-prevalence populations, H. pylori may have protective effects on allergic diseases. The aim of this study was to explore the relationship between pediatric asthma and H. pylori infection in a population with high prevalence of H. pylori infection. MATERIALS AND METHODS A national referral laboratory was screened for all (13) C urea breath tests performed in children aged 5-18 years between 2007 and 2008, for patient demographics and physician-diagnosed asthma. Data concerning asthma-associated medication usage were extracted from electronic medical records and databases. Data were analyzed using a stepwise logistic regression model. RESULTS During the study period, 6959 patients underwent urea breath testing (average age 12.4±3.5years). Of these, 3175/6959 (45.6%) were positive for H. pylori, and 578/6959 (8.3%) had asthma. Rates of asthma in H. pylori-positive and H. pylori-negative children were 7.3 and 9.1%, respectively (odds ratio 0.82; 95% confidence interval (CI) 0.69-0.98; p=.032). We also confirmed that male gender, urban residence, and age are associated with childhood asthma. CONCLUSIONS We demonstrate an inverse association between H. pylori and pediatric asthma in a population with a high prevalence of H. pylori.
Collapse
Affiliation(s)
- Noam Zevit
- Institute of Gastroenterology, Nutrition, and Liver Diseases, Schneider Children's Medical Center of Israel, Petach-Tikva, Israel.
| | | | | | | | | | | |
Collapse
|
10
|
Lionetti E, Indrio F, Pavone L, Borrelli G, Cavallo L, Francavilla R. Role of probiotics in pediatric patients with Helicobacter pylori infection: a comprehensive review of the literature. Helicobacter 2010; 15:79-87. [PMID: 20402810 DOI: 10.1111/j.1523-5378.2009.00743.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND The current guidelines suggest the use of triple therapy as first choice treatment of Helicobacter pylori infection, although the eradication failure rate is more than 30%. Current interest in probiotics as therapeutic agents against H. pylori is stimulated not only by the clinical data showing efficacy of some probiotics in different gastrointestinal diseases but also by the increasing resistance of pathogenic bacteria to antibiotics, thus the interest for alternative therapies is a real actual topic. AIM To review in vitro and in vivo studies on the role of probiotics in H. pylori infection focusing on the paediatric literature. MATERIALS AND METHODS Pre-clinical and clinical paediatric studies in English assessing the role of probiotics in H. pylori infection identified by MEDLINE search (1950-2009) were reviewed. RESULTS In vitro studies demonstrated an inhibitory activity of probiotics on H. pylori growth and that this effect is extremely strain specific. Available data in children indicate that probiotics seems to be efficacious for the prevention of antibiotic associated side-effects, and might be of help for the prevention of H. pylori complications by decreasing H. pylori density and gastritis, and for the prevention of H. pylori colonization or re-infection by inhibiting adhesion to gastric epithelial cells. There is no clear evidence that probiotics may increase the H. pylori eradication rate. CONCLUSION Both in vitro and in vivo studies provide evidence that probiotics may represent a novel approach to the management of H. pylori infection.
Collapse
Affiliation(s)
- Elena Lionetti
- Department of Paediatrics, University of Catania, Catania, Italy.
| | | | | | | | | | | |
Collapse
|
11
|
Spee LAA, Madderom MB, Pijpers M, van Leeuwen Y, Berger MY. Association between helicobacter pylori and gastrointestinal symptoms in children. Pediatrics 2010; 125:e651-69. [PMID: 20156901 DOI: 10.1542/peds.2010-0941] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Recurrent abdominal pain (RAP) and other gastrointestinal (GI) symptoms are common complaints among children. The role of Helicobacter pylori in the cause of these complaints remains controversial. Nevertheless, there is an increasing pressure on primary care clinicians to screen for H pylori infection in symptomatic children. We systematically reviewed the published evidence for an association between H pylori infection and GI symptoms in children. METHODS Medline and Embase databases up to July 2009 were searched to identify studies that evaluated the association between H pylori and GI symptoms in children aged up to 18 years. When studies reported on abdominal pain without additional definition, thus not fulfilling Apley's criteria, we grouped these outcomes as unspecified abdominal pain (UAP). Methodologic quality was scored by using a standardized list of criteria, and crude odds ratios (ORs) with 95% confidence intervals (CIs) were calculated and pooled. RESULTS Thirty-eight studies met our inclusion criteria: 23 case-control studies, 14 cross-sectional studies, and 1 prospective cohort study. The overall methodologic quality was low. Pooled ORs for the association between RAP and H pylori infection in children were 1.21 (95% CI: 0.82-1.78) in 12 case-control studies and 1.00 (95% CI: 0.76-1.31) in 7 cross-sectional studies. Meta-analysis of the association between UAP and H pylori infection in 6 hospital-based studies resulted in a pooled OR of 2.87 (95% CI: 1.62-5.09) compared with 0.99 (95% CI: 0.46-2.11) in 5 population-based studies. Two of 3 studies concerning epigastric pain reported a statistically significant positive association with H pylori infection. CONCLUSIONS We found no association between RAP and H pylori infection in children and conflicting evidence for an association between epigastric pain and H pylori infection. We found evidence for an association between UAP but could not confirm this finding in children seen in primary care.
Collapse
Affiliation(s)
- Leo A A Spee
- Erasmus MC, Department of General Practice, PO Box 2040, 3000 CA Rotterdam, Netherlands
| | | | | | | | | |
Collapse
|
12
|
Svennerholm AM, Lundgren A. Progress in vaccine development against Helicobacter pylori. ACTA ACUST UNITED AC 2007; 50:146-56. [PMID: 17442014 DOI: 10.1111/j.1574-695x.2007.00237.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Based on the very high prevalence of diseases caused by Helicobacter pylori, particularly in the developing world, and the rapid emergence of antibiotic resistance among clinical isolates, there is a strong rationale for an effective vaccine against H. pylori. In this review we describe recent promising candidate vaccines and prophylactic or therapeutic immunization strategies for use against H. pylori, as well as studies to identify immune responses that are related to protection in experimental animals. We also describe identification of different types of immune responses that may be related to protection against symptoms based on comparisons of H. pylori-infected patients with duodenal ulcers or gastric cancer and asymptomatic carriers. We conclude that there is still a strong need to clarify the main protective immune mechanisms against H. pylori as well as to identify a cocktail of strong protective antigens, or recombinant bacterial strains that express such antigens, that could be administered by a regimen that gives rise to effective immune responses in humans.
Collapse
Affiliation(s)
- Ann-Mari Svennerholm
- Department of Microbiology and Immunology, Institute of Biomedicine, Göteborg University, Göteborg, Sweden.
| | | |
Collapse
|
13
|
Abstract
BACKGROUND Close association of nodular gastritis and Helicobacter pylori infection has been initially proved by various studies. There have been some studies reporting microscopic and histologic recovery in a short time after eradication therapy. But there is not enough data about the long-term course of this condition. The aim of this study is to document current clinical conditions, presence of H. pylori and results of endoscopic and histologic examination, after a long-term period, in children with endoscopically diagnosed antral nodularity. METHODS A total of 35 patients diagnosed as nodular antral gastritis by upper gastrointestinal endoscopy during a 2 year period, were invited for re-evaluation and re-endoscopy after 3 years. Histopathologically, H. pylori detected ones had been treated with standard triple eradication therapy. In total, 27 patients were accepted for enrollment in the study. Repeated endoscopy could be performed in all 27 patients. RESULTS The persistence of antral nodularity was detected in 18 of 27 patients. Decrease in symptoms, absence of symptoms and presence of H. pylori infection were detected in 6, 8 and 16 (89%) of them, respectively. There was no statistical significance between the first and last endoscopic biopsies when activity, atrophy, intestinal metaplasia and presence of follicles were regarded. Malt lymphoma could not be detected in any of the patients. CONCLUSION There is a strong association between nodular gastritis and H. pylori. Presence of antral nodularity in the long-term period may be related to H. pylori re-infection. New therapeutic approaches are required for treatment and management of the patients diagnosed as nodular gastritis and living in areas endemic for H. pylori infection.
Collapse
|
14
|
Siala K, Sýkora J, Hes O, Varvarovská J, Pazdiora P. Helicobacter heilmannii reinfection in a Helicobacter pylori negative adolescent: a 4-year follow-up. J Clin Gastroenterol 2007; 41:221-2. [PMID: 17245224 DOI: 10.1097/01.mcg.0000212605.13348.2c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
|
15
|
Abstract
Differences may occur in the mode of transmission of Helicobacter pylori between developed and developing countries: direct human-to-human contacts have been suggested as the primary route in the former while the fecal-oral route, also, through contaminated water, in the latter. Data on intrafamilial transmission of H. pylori among children continue to be produced. The importance of low socioeconomic conditions on the acquisition of H. pylori infection has been confirmed in a number of population-based studies. Due to the improvement of living standards, the prevalence of the infection has fallen dramatically in many countries. It varies from 8.9 to 72.8% among children from developed and developing countries, respectively, the re-infection rate being also significantly higher in the latter. Conflicting data have been reported on the effect of breastfeeding against H. pylori colonization in infancy as well as on the occupational risk for acquiring H. pylori. This review summarizes recent results from the literature on these topics.
Collapse
|
16
|
Halitim F, Vincent P, Michaud L, Kalach N, Guimber D, Boman F, Turck D, Gottrand F. High rate of Helicobacter pylori reinfection in children and adolescents. Helicobacter 2006; 11:168-72. [PMID: 16684264 DOI: 10.1111/j.1523-5378.2006.00396.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
AIMS Primary Helicobacter pylori infection occurs predominantly in childhood. The aims of this study were to establish the rate of H. pylori reinfection after successful eradication in children and adolescents and to determine the risk factors associated with reinfection. PATIENTS AND METHODS This retrospective study involved 45 children (20 girls, 25 boys) who met the following criteria: eradication of H. pylori confirmed at least 4 weeks after the completion of therapy, and the search for reinfection at least one year after control of eradication of H. pylori. Demographic data, socioeconomic status and living conditions were recorded. RESULTS Forty-five children aged 1.2-17.6 years (median, 10.9 years) at the time of H. pylori treatment were reviewed 1 to 9 years after H. pylori eradication. Eight children (18%) had been reinfected (5.4% to 6% per patient-year). Six of 25 (24%) children older than 10 years at the time of diagnosis became reinfected. None of the studied risk factors was associated with reinfection. However, having a sibling younger than 5 years was found in four of seven (57%) reinfected children versus five of 24 (21%) nonreinfected children (p = .08). CONCLUSION Children become reinfected more frequently than adults. Adolescents become reinfected, whereas acquisition of primary H. pylori infection occurs predominantly in early childhood. Close contact with young children, especially siblings, younger than 5 years could be a more important risk factor than the age of the patient at the time of treatment for the high rate of reinfection in childhood.
Collapse
Affiliation(s)
- Fairouz Halitim
- Clinique de Pédiatrie, Hôpital Jeanne de Flandre, CHRU de Lille et Faculté de Médecine, Université de Lille II, Lille, France.
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Ozen A, Ertem D, Pehlivanoglu E. Natural history and symptomatology of Helicobacter pylori in childhood and factors determining the epidemiology of infection. J Pediatr Gastroenterol Nutr 2006; 42:398-404. [PMID: 16641578 DOI: 10.1097/01.mpg.0000215307.48169.7b] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND High seroprevalence rates for Helicobacter pylori have been reported in developing countries, yet few studies exist determining the pattern of change in the epidemiology of H. pylori infection in children. The knowledge of acquisition and loss rates of H. pylori and the relevance to the sociodemographic properties and the symptomatology of infection may provide clues for lifestyle changes that might protect children from infection, and also, it may provide rationale for eradication, screening, and protection policies. Our aim was to conduct a prospective study to elucidate the outcome, rate of acquisition, and loss of H. pylori infection in a population of healthy children. METHODS This study is based on follow-up of 327 healthy Turkish children aged 3 to 12 years. The follow-up was conducted 6 years after the baseline examination. Helicobacter pylori status was determined by C-urea breath test. Children were investigated for sociodemographic variables and several symptoms. RESULTS Data from 136 (41%) of 327 children were available. The prevalence of infection increased from 52.9% to 56.6%, mainly increasing in children younger than 10 years. The incidence of H. pylori infection among previously uninfected children was 14%, and the loss rate of infection among previously infected children was 5.5% during the follow-up. Socioeconomic status, household density, and antibiotic use during last 6 months were inversely related to H. pylori prevalence. Children infected with H. pylori were complaining more often of headache but not of abdominal pain or dyspepsia. CONCLUSIONS In this study, the acquisition rate of H. pylori infection was 2.5-fold higher than the loss of infection, and the acquisition mostly occurred before 10 years of age. Data regarding acquisition and loss of H. pylori infection are critical for understanding the epidemiology of infection and development of preventive and treatment strategies.
Collapse
Affiliation(s)
- Ahmet Ozen
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Marmara University School of Medicine, Istanbul, Turkey
| | | | | |
Collapse
|
18
|
Shim JO, Seo JK. Helicobacter pylori reinfection rate by a 13C-urea breath test and endoscopic biopsy tests in Korean children. KOREAN JOURNAL OF PEDIATRICS 2006. [DOI: 10.3345/kjp.2006.49.3.268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Jeong Ok Shim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Jeong Kee Seo
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| |
Collapse
|
19
|
Francavilla R, Lionetti E, Castellaneta SP, Magistà AM, Boscarelli G, Piscitelli D, Amoruso A, Di Leo A, Miniello VL, Francavilla A, Cavallo L, Ierardi E. Improved efficacy of 10-Day sequential treatment for Helicobacter pylori eradication in children: a randomized trial. Gastroenterology 2005; 129:1414-9. [PMID: 16285942 DOI: 10.1053/j.gastro.2005.09.007] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2005] [Accepted: 07/27/2005] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS The currently recommended first-line eradication treatment of Helicobacter pylori in children is usually successful in about 75%. Recently, in adults, a novel 10-day sequential treatment has achieved an eradication rate of 95%. The aim of the study was to assess the H pylori eradication rate of the sequential treatment regimen compared with conventional triple therapy in children. METHODS Seventy-eight consecutive children with H pylori infection were randomized to receive either sequential treatment (omeprazole plus amoxicillin for 5 days, followed by omeprazole plus clarithromycin plus tinidazole for another 5 days) (n = 38; 15 boys [39.5%]; median age, 11.0 years [range, 3.3-16 years]) or triple therapy (omeprazole, amoxicillin, and metronidazole) for 1 week (n = 37; 15 boys [40.5%]; median age, 9.9 years [range, 4.3-16 years]). H pylori infection was based on 2 out of 3 positive tests results: 13C-urea breath test, rapid urease test, and histologic analysis. Eradication was assessed by 13C-urea breath test 8 weeks after therapy. RESULTS Seventy-four patients completed the study. H pylori eradication was achieved in 36 children receiving sequential treatment (97.3%; 95% confidence interval, 86.2-99.5) and 28 children receiving triple therapy (75.7%; 95% confidence interval, 59.8-86.7) (P < .02). Compliance with therapy was good (>95%) in all. CONCLUSIONS Our study shows, for the first time in children, that 10-day sequential treatment achieves a higher eradication rate than standard triple therapy, which is consistent with the results of adult studies.
Collapse
Affiliation(s)
- Ruggiero Francavilla
- Department of Biomedicina dell'Età Evolutiva, Università degli Studi di Bari, Bari, Italy.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
|