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Background: Evolving epidemiological data and increasing antibiotic resistance mandate an update of the European and North American Societies of Pediatric Gastroenterology, Hepatology and Nutrition guidelines., Methods: Certainty of evidence and strength of recommendations were rated by experts according to the Grading of Recommendation Assessment, Development, and Evaluation approach. PICO (patient population, intervention, comparator, and outcome) questions were developed and voted on by the group. Recommendations were formulated using the Evidence to Decision framework., Results: The current literature supports many of the previous recommendations and several new recommendations. Invasive testing with strain antimicrobial susceptibility analysis is recommended for the diagnosis and selection of eradication therapy for H. pylori infection. Molecular methods are acceptable for detection of infection and of antibiotic resistance in gastric biopsy specimens. Reliable, noninvasive tests can be used as a screening method for children with history of gastric cancer in a first-degree relative. When investigating causes of chronic immune thrombocytopenic purpura, testing for H. pylori is no longer recommended. When investigating other diseases such as inflammatory bowel disease, celiac disease, or eosinophilic esophagitis, specific diagnostic biopsies for H. pylori infection are not indicated. However, if H. pylori is an incidental finding, treatment may be considered after discussing the risks and benefits. Treatment should be based on antibiotic antimicrobial susceptibility testing and, if unavailable, regimens containing clarithromycin should be avoided., Conclusions: Due to decreasing prevalence of infection, increasing challenges with antibiotic resistance, and emerging evidence regarding complications of infection, clinicians must be aware of these recommended changes to appropriately manage H. pylori infection and its clinical sequelae in children., (© 2024 European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Introduction: High-quality pediatric gastrointestinal procedures are performed when clinically indicated and defined by their successful performance by skilled providers in a safe, comfortable, child-oriented, and expeditious manner. The process of pediatric endoscopy begins when a plan to perform the procedure is first made and ends when all appropriate patient follow-up has occurred. Procedure-related standards and indicators developed to date for endoscopy in adults emphasize cancer screening and are thus unsuitable for pediatric medicine., Methods: With support from the North American and European Societies of Pediatric Gastroenterology Hepatology and Nutrition (NASPGHAN and ESPGHAN), an international working group of the Pediatric Endoscopy Quality Improvement Network (PEnQuIN) used the methodological strategy of the Appraisal of Guidelines for REsearch and Evaluation (AGREE) II instrument to develop standards and indicators relevant for assessing the quality of endoscopic procedures. Consensus was sought via an iterative online Delphi process and finalized at an in-person conference. The quality of evidence and strength of recommendations were rated according to the GRADE (Grading of Recommendation Assessment, Development, and Evaluation) approach., Results: The PEnQuIN working group achieved consensus on 14 standards for pediatric endoscopic procedures, as well as 30 indicators that can be used to identify high-quality procedures. These were subcategorized into three subdomains: Preprocedural (3 standards, 7 indicators), Intraprocedural (8 standards, 18 indicators), and Postprocedural (3 standards, 5 indicators). A minimum target for the key indicator, "rate of adequate bowel preparation," was set at ≥80%., Discussion: It is recommended that all facilities and individual providers performing pediatric endoscopy worldwide initiate and engage with the procedure-related standards and indicators developed by PEnQuIN to identify gaps in quality and drive improvement., Competing Interests: Conflicts of interest: P.B. has served on the advisory boards of Biocodex, Nutricia, and Avanos. P.B. has received honoraria for speaking engagements from AbbVie, Nutricia, and Avanos. N.M.C.'s institution received speaker fees, advisory board fees, and research funding on his behalf from AbbVie, Eli Lilly, Takeda, Shire, Pfizer, and 4D Pharma. D.S.F. has received royalties from UpToDate (“Pediatric Caustic Ingestions”). I.H. has received honoraria for speaking engagements from BioGaia, Oktal Pharma, Nutricia, Abela Pharm, and Nestle. H.Q.H. has received research support from Janssen, AbbVie, Takeda, and Allergan. H.Q.H. has served on the advisory boards of AbbVie and Jansen. K.J. has received research support from Janssen, AbbVie, and the Center for Drug Research and Development (CDRD). K.J. has served on the advisory boards of Janssen, AbbVie, and Merck and participates in the speaker's bureau for AbbVie and Janssen. D.G.L. has received consultant fees from EvoEndo. J.R.L. has received research support from AbbVie and an honorarium from Mead Johnson. A.R.O. has received research support from Janssen, AbbVie, Pfizer, and Eli Lilly. A.R.O. has served on the advisory boards of Janssen, AbbVie, and Eli Lilly and participates in the speaker's bureau for AbbVie and Janssen. J.R.R. has received research support from AbbVie and Janssen. J.R.R. has served on the advisory boards of Janssen, BMS, Eli Lilly, and Pfizer. C.M.W. has received research support from AbbVie., (Copyright © 2021 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Introduction: There is increasing international recognition of the impact of variability in endoscopy facilities on procedural quality and outcomes. There is also growing precedent for assessing the quality of endoscopy facilities at regional and national levels by using standardized rating scales to identify opportunities for improvement., Methods: With support from the North American and European Societies of Pediatric Gastroenterology Hepatology and Nutrition (NASPGHAN and ESPGHAN), an international working group of the Pediatric Endoscopy Quality Improvement Network (PEnQuIN) used the methodological strategy of the Appraisal of Guidelines for REsearch and Evaluation (AGREE) II instrument to develop standards and indicators relevant for assessing the quality of facilities where endoscopic care is provided to children. Consensus was reached via an iterative online Delphi process and subsequent in-person meeting. The quality of evidence and strength of recommendations were rated according to the GRADE (Grading of Recommendation Assessment, Development and Evaluation) approach., Results: The PEnQuIN working group achieved consensus on 27 standards for facilities supporting pediatric endoscopy, as well 10 indicators that can be used to identify high-quality endoscopic care in children. These standards were subcategorized into three subdomains: Quality of Clinical Operations (15 standards, 5 indicators); Patient and Caregiver Experience (9 standards, 5 indicators); and Workforce (3 standards)., Discussion: The rigorous PEnQuIN process successfully yielded standards and indicators that can be used to universally guide and measure high-quality facilities for procedures around the world where endoscopy is performed in children. It also underscores the current paucity of evidence for pediatric endoscopic care processes, and the need for research into this clinical area., Competing Interests: Conflicts of interest: P.B. has served on the advisory boards of Biocodex, Nutricia, and Avanos. P.B. has received honoraria for speaking engagements from AbbVie, Nutricia, and Avanos. N.M.C.'s institution received speaker fees, advisory board fees, and research funding on his behalf from AbbVie, Eli Lilly, Takeda, Shire, Pfizer, and 4D Pharma. D.S.F. has received royalties from UpToDate (“Pediatric Caustic Ingestions”). I.H. has received honoraria for speaking engagements from BioGaia, Oktal Pharma, Nutricia, Abela Pharm, and Nestle. H.Q.H. has received research support from Janssen, AbbVie, Takeda, and Allergan. H.Q.H. has served on the advisory boards of AbbVie and Jansen. K.J. has received research support from Janssen, AbbVie, and the Center for Drug Research and Development (CDRD). K.J. has served on the advisory boards of Janssen, AbbVie, and Merck and participates in the speaker's bureau for AbbVie and Janssen. D.G.L. has received consultant fees from EvoEndo. J.R.L. has received research support from AbbVie and an honorarium from Mead Johnson. A.R.O. has received research support from Janssen, AbbVie, Pfizer, and Eli Lilly. A.R.O. has served on the advisory boards of Janssen, AbbVie, and Eli Lilly and participates in the speaker's bureau for AbbVie and Janssen. J.R.R. has received research support from AbbVie and Janssen. J.R.R. has served on the advisory boards of Janssen, BMS, Eli Lilly, and Pfizer. C.M.W. has received research support from AbbVie., (Copyright © 2021 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Introduction: High-quality procedure reports are a cornerstone of high-quality pediatric endoscopy as they ensure the clear communication of procedural events and outcomes, guide patient care and facilitate continuous quality improvement. The aim of this document is to outline standardized reporting elements that achieved international consensus as requirements for high-quality pediatric endoscopy procedure reports., Methods: With support from the North American and European Societies of Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN and ESPGHAN), an international working group of the Pediatric Endoscopy Quality Improvement Network (PEnQuIN) used Delphi methodology to identify key elements that should be found in all pediatric endoscopy reports. Item reduction was attained through iterative rounds of anonymized online voting using a 6-point scale. Responses were analyzed after each round and items were excluded from subsequent rounds if ≤50% of panelists rated them as 5 ("agree moderately") or 6 ("agree strongly"). Reporting elements that ≥70% of panelists rated as "agree moderately" or "agree strongly" were considered to have achieved consensus., Results: Twenty-six PEnQuIN group members from 25 centers internationally rated 63 potential reporting elements that were generated from a systematic literature review and the Delphi panelists. The response rates were 100% for all three survey rounds. Thirty reporting elements reached consensus as essential for inclusion within a pediatric endoscopy report., Discussion: It is recommended that the PEnQuIN Reporting Elements for pediatric endoscopy be universally employed across all endoscopists, procedures and facilities as a foundational means of ensuring high-quality endoscopy services, while facilitating quality improvement activities in pediatric endoscopy., Competing Interests: Conflicts of interest: P.B. has served on the advisory boards of Biocodex, Nutricia, and Avanos. P.B. has received honoraria for speaking engagements from AbbVie, Nutricia, and Avanos. N.M.C.'s institution received speaker fees, advisory board fees, and research funding on his behalf from AbbVie, Eli Lilly, Takeda, Shire, Pfizer, and 4D Pharma. D.S.F. has received royalties from UpToDate (“Pediatric Caustic Ingestions”). I.H. has received honoraria for speaking engagements from BioGaia, Oktal Pharma, Nutricia, Abela Pharm, and Nestle. H.Q.H. has received research support from Janssen, AbbVie, Takeda, and Allergan. H.Q.H. has served on the advisory boards of AbbVie and Jansen. K.J. has received research support from Janssen, AbbVie, and the Center for Drug Research and Development (CDRD). K.J. has served on the advisory boards of Janssen, AbbVie, and Merck and participates in the speaker's bureau for AbbVie and Janssen. D.G.L. has received consultant fees from EvoEndo. J.R.L. has received research support from AbbVie and an honorarium from Mead Johnson. A.R.O. has received research support from Janssen, AbbVie, Pfizer, and Eli Lilly. A.R.O. has served on the advisory boards of Janssen, AbbVie, and Eli Lilly and participates in the speaker's bureau for AbbVie and Janssen. J.R.R. has received research support from AbbVie and Janssen. J.R.R. has served on the advisory boards of Janssen, BMS, Eli Lilly, and Pfizer. C.M.W. has received research support from AbbVie., (Copyright © 2021 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Introduction: High-quality pediatric endoscopy requires reliable performance of procedures by competent individual providers who consistently uphold all standards determined to assure optimal patient outcomes. Establishing consensus expectations for ongoing monitoring and assessment of individual pediatric endoscopists is a method for confirming the highest possible quality of care for such procedures worldwide. We aim to provide guidance to define and measure quality of endoscopic care for children., Methods: With support from the North American and European Societies of Pediatric Gastroenterology Hepatology and Nutrition (NASPGHAN and ESPGHAN), an international working group of the Pediatric Endoscopy Quality Improvement Network (PEnQuIN) used the methodological strategy of the Appraisal of Guidelines for REsearch and Evaluation (AGREE) II instrument to develop standards and indicators relevant for assessing the quality of endoscopists. Consensus was sought via an iterative online Delphi process and finalized at an in-person conference. The quality of evidence and strength of recommendations were rated according to the GRADE (Grading of Recommendation Assessment, Development, and Evaluation) approach., Results: The PEnQuIN working group achieved consensus on 6 standards that all providers who perform pediatric endoscopy should uphold and 2 standards for pediatric endoscopists in training, with 7 corresponding indicators that can be used to identify high-quality endoscopists. Additionally, these can inform continuous quality improvement at the provider level. Minimum targets for defining high-quality pediatric ileocolonoscopy were set for 2 key indicators: cecal intubation rate (≥90%) and terminal ileal intubation rate (≥85%)., Discussion: It is recommended that all individual providers performing or training to perform pediatric endoscopy initiate and engage with these international endoscopist-related standards and indicators developed by PEnQuIN., Competing Interests: Conflicts of interest: P.B. has served on the advisory boards of Biocodex, Nutricia, and Avanos. P.B. has received honoraria for speaking engagements from AbbVie, Nutricia, and Avanos. N.M.C.'s institution received speaker fees, advisory board fees, and research funding on his behalf from AbbVie, Eli Lilly, Takeda, Shire, Pfizer, and 4D Pharma. D.S.F. has received royalties from UpToDate (“Pediatric Caustic Ingestions”). I.H. has received honoraria for speaking engagements from BioGaia, Oktal Pharma, Nutricia, Abela Pharm, and Nestle. H.Q.H. has received research support from Janssen, AbbVie, Takeda, and Allergan. H.Q.H. has served on the advisory boards of AbbVie and Jansen. K.J. has received research support from Janssen, AbbVie, and the Center for Drug Research and Development (CDRD). K.J. has served on the advisory boards of Janssen, AbbVie, and Merck and participates in the speaker's bureau for AbbVie and Janssen. D.G.L. has received consultant fees from EvoEndo. J.R.L. has received research support from AbbVie and an honorarium from Mead Johnson. A.R.O. has received research support from Janssen, AbbVie, Pfizer, and Eli Lilly. A.R.O. has served on the advisory boards of Janssen, AbbVie, and Eli Lilly and participates in the speaker's bureau for AbbVie and Janssen. J.R.R. has received research support from AbbVie and Janssen. J.R.R. has served on the advisory boards of Janssen, BMS, Eli Lilly, and Pfizer. C.M.W. has received research support from AbbVie., (Copyright © 2021 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Introduction: Pediatric-specific quality standards for endoscopy are needed to define best practices, while measurement of associated indicators is critical to guide quality improvement. The international Pediatric Endoscopy Quality Improvement Network (PEnQuIN) working group was assembled to develop and define quality standards and indicators for pediatric gastrointestinal endoscopic procedures through a rigorous guideline consensus process., Methods: The Appraisal of Guidelines for REsearch and Evaluation (AGREE) II instrument guided PEnQuIN members, recruited from 31 centers of various practice types representing 11 countries, in generating and refining proposed quality standards and indicators. Consensus was sought via an iterative online Delphi process, and finalized at an in-person conference. Quality of evidence and strength of recommendations were rated according to the GRADE (Grading of Recommendation Assessment, Development, and Evaluation) approach., Results: Forty-nine quality standards and 47 indicators reached consensus, encompassing pediatric endoscopy facilities, procedures, endoscopists, and the patient experience. The evidence base for PEnQuIN standards and indicators was largely adult-based and observational, and downgraded for indirectness, imprecision, and study limitations to "very low" quality, resulting in "conditional" recommendations for most standards (45/49)., Conclusions: The PEnQuIN guideline development process establishes international agreement on clinically meaningful metrics that can be used to promote safety and quality in endoscopic care for children. Through PEnQuIN, pediatric endoscopists and endoscopy services now have a framework for auditing, providing feedback, and ultimately, benchmarking performance. Expansion of evidence and prospective validation of PEnQuIN standards and indicators as predictors of clinically relevant outcomes and high-quality pediatric endoscopic care is now a research priority., Competing Interests: Conflicts of interest: P.B. has served on the advisory boards of Biocodex, Nutricia, and Avanos. P.B. has received honoraria for speaking engagements from AbbVie, Nutricia, and Avanos. N.M.C.'s institution received speaker fees, advisory board fees, and research funding on his behalf from AbbVie, Eli Lilly, Takeda, Shire, Pfizer, and 4D Pharma. D.S.F. has received royalties from UpToDate (“Pediatric Caustic Ingestions”). I.H. has received honoraria for speaking engagements from BioGaia, Oktal Pharma, Nutricia, Abela Pharm, and Nestle. H.Q.H. has received research support from Janssen, AbbVie, Takeda, and Allergan. H.Q.H. has served on the advisory boards of AbbVie and Jansen. K.J. has received research support from Janssen, AbbVie, and the Center for Drug Research and Development (CDRD). K.J. has served on the advisory boards of Janssen, AbbVie, and Merck and participates in the speaker's bureau for AbbVie and Janssen. D.G.L. has received consultant fees from EvoEndo. J.R.L. has received research support from AbbVie and an honorarium from Mead Johnson. A.R.O. has received research support from Janssen, AbbVie, Pfizer and Eli Lilly. A.R.O. has served on the advisory boards of Janssen, AbbVie, and Eli Lilly and participates in the speaker's bureau for AbbVie and Janssen. J.R.R. has received research support from AbbVie and Janssen. J.R.R. has served on the advisory boards of Janssen, BMS, Eli Lilly, and Pfizer. C.M.W. has received research support from AbbVie., (Copyright © 2021 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Objectives: A descriptive and comparative study of gastric histological aspects according to the updated Sydney classification (USC), obtained from Helicobacter pylori-positive versus H pylori-negative children referred for upper gastrointestinal endoscopy., Methods: The Prisma method was used to perform a systematic review and meta-analysis. Selection criteria were based on following key words USC, H pylori, children, endoscopy, or biopsy. Publication biases were assessed according to the Newcastle-Ottawa Scale, and a meta-regression analysis was done. The study was registered on the PROSPERO platform., Results: Between 1994 and 2017, 1238 references were found; 97 studies were retained for the systematic review with a total number of 25,867 children; 75 studies were selected for the meta-analysis concerning 5990 H pylori-infected and 17,782 uninfected children.H pylori-positive versus H pylori-negative children, according to the USC, showed significantly higher relative risk for gastric antral and corpus chronic inflammation, presence of neutrophils, and of lymphoid follicles, and gastric mucosa atrophy, whereas, intestinal metaplasia showed a significantly higher RR only in antral biopsies. The meta-regression analysis showed that H pylori-positive versus H pylori-negative children had significantly higher risk only for corpus activity according to age, recurrent abdominal pain, and geographical area of low H pylori prevalence., Conclusions: H pylori infection in children was associated with higher relative risk for gastric antral and corpus chronic inflammation, presence of neutrophils, lymphoid follicles, and rare gastric mucosa atrophy, whereas, rare intestinal metaplasia was only significantly higher in the antral area., (Copyright © 2021 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Abstract: The risk of bone fracture in children under proton-pump inhibitors (PPI) treatment has been the subject of recent publications and naturally raises concerns among prescribing doctors, patients and their parents.Currently, there is no consistency in those risk claims according to the available evidence and an update on it is beneficial to reduce anxiety on one hand, and prompt for well-planned studies addressing the issue on the other. Furthermore, common sense and well-founded prescriptions must be the general rule for this as for any other therapeutic drug., (Copyright © 2021 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Objectives: Autoimmune gastritis (AIG) is a chronic inflammatory condition of the gastric mucosa, mainly described in adults presenting with pernicious anemia. It results from antibody-mediated destruction of parietal cells, but the precise initiating event is unknown. The pathogenicity of Helicobacter pylori (H pylori) has been suggested but not established. This study aimed to better characterize AIG in pediatric patients and to address the possible role of H pylori infection., Methods: Descriptive single-center study, retrospectively describing 20 patients with a diagnosis of AIG based on positivity for anti-parietal cell autoantibodies, in addition to analytical and/or histological findings of oxyntic mucosa atrophy., Results: In the majority (18/20), AIG diagnosis was suggested during investigation of refractory iron-deficient anemia. One patient had dyspepsia and none of the others had gastrointestinal symptoms. Fifty-five percent (11/20) were H pylori positive, but there were no significant differences regarding mean hemoglobin values at presentation (10.6 ± 2.5 vs 9.5 ± 1.0 g/dL, P > 0.05), analytical indicators of gastric atrophy (gastrin, 564.4 ± 184 vs 721.2 ± 220.6 pg/mL, P > 0.05), or in the presence or the grade of oxyntic mucosa atrophy., Conclusions: Our findings highlight that AIG may have an age-dependent presentation; thus, we can consider a pediatric phenotype that in contrast to adults, is manifested by refractory iron-deficient anemia and associated with parietal cell autoantibody positivity, but not intrinsic factor autoantibodies. A correlation between H pylori and AIG was not evident in the current study and it is still unclear whether H pylori is a trigger for AIG.

This guideline refers to infants, children, and adolescents ages 0 to 18 years. The areas covered include indications for diagnostic and therapeutic esophagogastroduodenoscopy and ileocolonoscopy; endoscopy for foreign body ingestion; corrosive ingestion and stricture/stenosis endoscopic management; upper and lower gastrointestinal bleeding; endoscopic retrograde cholangiopancreatography; and endoscopic ultrasonography. Percutaneous endoscopic gastrostomy and endoscopy specific to inflammatory bowel disease has been dealt with in other guidelines and are therefore not mentioned in this guideline. Training and ongoing skill maintenance are to be dealt with in an imminent sister publication to this.