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Bongiovanni A, Manti S, Parisi GF, Papale M, Mulè E, Rotolo N, Leonardi S. Focus on gastroesophageal reflux disease in patients with cystic fibrosis. World J Gastroenterol 2020; 26:6322-6334. [PMID: 33244195 PMCID: PMC7656210 DOI: 10.3748/wjg.v26.i41.6322] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/22/2020] [Accepted: 10/01/2020] [Indexed: 02/06/2023] Open
Abstract
Gastroesophageal reflux disease (GERD) is a common gastrointestinal disorder in cystic fibrosis (CF), and based on various studies, its prevalence is elevated since childhood. There are several pathogenetic mechanisms on the basis of association between CF and GERD. However, there are no specific guidelines for GERD in CF patients, so diagnosis is based on guidelines performed on patients not affected by CF. The aim of this review is to provide the pathophysiology, diagnostic and therapeutic options, complications, and future directions in the management of GERD patients with CF.
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Affiliation(s)
- Annarita Bongiovanni
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Sara Manti
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Giuseppe Fabio Parisi
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Maria Papale
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Enza Mulè
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Novella Rotolo
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Salvatore Leonardi
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
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Lanas-Gimeno A, Hijos G, Lanas Á. Proton pump inhibitors, adverse events and increased risk of mortality. Expert Opin Drug Saf 2019; 18:1043-1053. [DOI: 10.1080/14740338.2019.1664470] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Gonzalo Hijos
- Servicio de Aparato Digestivo, Hospital Clínico Universitario, Zaragoza, Spain
- Instituto de Investigación Sanitaria Aragón, Zaragoza, Spain
| | - Ángel Lanas
- Servicio de Aparato Digestivo, Hospital Clínico Universitario, Zaragoza, Spain
- Instituto de Investigación Sanitaria Aragón, Zaragoza, Spain
- CIBERehd, Madrid, Spain
- Department of Medicine, Universidad de Zaragoza, Zaragoza, Spain
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3
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Wang CH, Li CH, Hsieh R, Fan CY, Hsu TC, Chang WC, Hsu WT, Lin YY, Lee CC. Proton pump inhibitors therapy and the risk of pneumonia: a systematic review and meta‐analysis of randomized controlled trials and observational studies. Expert Opin Drug Saf 2019; 18:163-172. [DOI: 10.1080/14740338.2019.1577820] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Chih-Hung Wang
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Cheng-Han Li
- College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ronan Hsieh
- Department of Medicine, Albert Einstein Medical Center, Philadelphia, PA, USA
| | - Cheng-Yi Fan
- College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Tze-Chun Hsu
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Wei-Che Chang
- College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Wan-Ting Hsu
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
| | - Yu-Ya Lin
- Department of Pharmacy, E-Da hospital, Kaohsiung, Taiwan
| | - Chien-Chang Lee
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
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Bardou M, Fortinsky KJ, Chapelle N, Luu M, Barkun A. An update on the latest chemical therapies for reflux esophagitis in children. Expert Opin Pharmacother 2018; 20:231-239. [DOI: 10.1080/14656566.2018.1549224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Marc Bardou
- Centre d’Investigations Cliniques CIC1432, CHU de Dijon, Dijon Cedex, France
- Gastroenterology Department, CHU de Dijon, Dijon Cedex, France
| | - Kyle J. Fortinsky
- Department of Medicine, University of Toronto, Toronto General Hospital, Toronto, Ontario, Canada
| | | | - Maxime Luu
- Centre d’Investigations Cliniques CIC1432, CHU de Dijon, Dijon Cedex, France
| | - Alan Barkun
- Gastroenterology department, McGill University Health Centre, Montréal, Québec, Canada
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Singh A, Cresci GA, Kirby DF. Proton Pump Inhibitors: Risks and Rewards and Emerging Consequences to the Gut Microbiome. Nutr Clin Pract 2018; 33:614-624. [PMID: 30071147 DOI: 10.1002/ncp.10181] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In recent years, proton pump inhibitors (PPIs) have been criticized for their various adverse interactions and side effects, creating a dilemma among practitioners regarding their use. Our goal is to review the proper use and possible side effects that might be caused by or associated with PPI use. Conclusions were drawn based on the evidence supporting or refuting short-term and long-term adverse events associated with PPI use. We also looked for the evidence regarding effects of PPIs on gut microbiota and their overall safety profile. Although there are significant discrepancies in the current literature regarding various adverse effects associated with PPI use, current data suggest that PPI use is not associated with an increased risk of bone fractures, community-acquired pneumonia, cardiovascular events, hypocalcemia, and gastric malignancies. A mild increased risk of vitamin B12 deficiency and chronic kidney disease, and a moderate increase in the risk of rebound hypersecretion, small intestinal bacterial overgrowth, and enteric infections, including Clostridium difficile, has been noted with PPI therapy. PPI's link with dementia and spontaneous bacterial peritonitis is not clear and requires further investigation. When used appropriately, PPIs are safe medications and are associated with minimal side effects. A clear indication and potential short-term and long-term side effects should be considered before starting PPI therapy.
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Affiliation(s)
- Amandeep Singh
- Department of Gastroenterology and Hepatology, Center for Human Nutrition, Diegstive Disease and Survery Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Gail A Cresci
- Department of Gastroenterology and Hepatology, Center for Human Nutrition, Diegstive Disease and Survery Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department Gastroenterology, Pediatric Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Pathobiology, Learner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Donald F Kirby
- Department of Gastroenterology and Hepatology, Center for Human Nutrition, Diegstive Disease and Survery Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Zirk‐Sadowski J, Masoli JA, Delgado J, Hamilton W, Strain WD, Henley W, Melzer D, Ble A. Proton-Pump Inhibitors and Long-Term Risk of Community-Acquired Pneumonia in Older Adults. J Am Geriatr Soc 2018; 66:1332-1338. [PMID: 29676433 PMCID: PMC6099478 DOI: 10.1111/jgs.15385] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 02/16/2018] [Accepted: 02/28/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To estimate associations between long-term use of proton pump inhibitors (PPIs) and pneumonia incidence in older adults in primary care. DESIGN Longitudinal analyses of electronic medical records. SETTING England PARTICIPANTS: Individuals aged 60 and older in primary care receiving PPIs for 1 year or longer (N=75,050) and age- and sex-matched controls (N=75,050). MEASUREMENTS Net hazard ratios for pneumonia incidence in Year 2 of treatment were estimated using the prior event rate ratio (PERR), which adjusts for pneumonia incidence differences before initiation of treatment. Inverse probability weighted models adjusted for 78 demographic, disease, medication, and healthcare usage measures. RESULTS During the second year after initiating treatment, PPIs were associated with greater hazard of incident pneumonia (PERR-adjusted hazard ratio=1.82, 95% confidence interval=1.27-2.54), accounting for pretreatment pneumonia rates. Estimates were similar across age and comorbidity subgroups. Similar results were also obtained from propensity score- and inverse probability-weighted models. CONCLUSION In a large cohort of older adults in primary care, PPI prescription was associated with greater risk of pneumonia in the second year of treatment. Results were robust across alternative analysis approaches. Controversies about the validity of reported short-term harms of PPIs should not divert attention from potential long-term effects of PPI prescriptions on older adults.
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Affiliation(s)
- Jan Zirk‐Sadowski
- Epidemiology and Public Health Group, Medical SchoolUniversity of ExeterExeterUnited Kingdom
- Medicines Policy Research Unit, Centre for Big Data Research in HealthUniversity of New South WalesSydneyAustralia
| | - Jane A. Masoli
- Epidemiology and Public Health Group, Medical SchoolUniversity of ExeterExeterUnited Kingdom
- Department of Healthcare for Older PeopleRoyal Devon and Exeter National Health Service Foundation TrustExeterUnited Kingdom
| | - Joao Delgado
- Epidemiology and Public Health Group, Medical SchoolUniversity of ExeterExeterUnited Kingdom
| | - Willie Hamilton
- Primary Care Diagnostics, Medical School, St Luke's CampusUniversity of ExeterExeterUnited Kingdom
| | - W. David Strain
- Department of Healthcare for Older PeopleRoyal Devon and Exeter National Health Service Foundation TrustExeterUnited Kingdom
- Diabetes and Vascular Medicine, Medical SchoolUniversity of ExeterExeterUnited Kingdom
| | - William Henley
- Health Statistics Group, Institute of Health Research, Medical School, St Luke's CampusUniversity of ExeterExeterUnited Kingdom
| | - David Melzer
- Epidemiology and Public Health Group, Medical SchoolUniversity of ExeterExeterUnited Kingdom
| | - Alessandro Ble
- Epidemiology and Public Health Group, Medical SchoolUniversity of ExeterExeterUnited Kingdom
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Houben E, Johansson S, Nagy P, Penning-van Beest FJA, Kuipers EJ, Herings RMC. Observational cohort study: safety outcomes in children using proton pump inhibitors or histamine-2 receptor antagonists. Curr Med Res Opin 2018; 34:577-583. [PMID: 29149805 DOI: 10.1080/03007995.2017.1407302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Acid suppression with histamine-2 receptor antagonists (H2RAs) or proton pump inhibitors (PPIs) is recommended for children with persistent gastroesophageal reflux disease symptoms. In this retrospective, observational postauthorization study, we aimed to assess and compare safety outcomes in pediatric first-time users of esomeprazole, other PPIs or H2RAs. METHODS Data on children (aged 0-18 years) first dispensed esomeprazole, other PPIs or H2RAs between September 2008 and August 2011 was obtained from the Dutch PHARMO Database Network. Hospitalizations for seven predefined safety outcomes were evaluated (maximum follow-up: 18 months). Rate ratios were calculated using Poisson regression adjusted for baseline imbalances. Discharge letters were reviewed for event occurrence confirmation. RESULTS Of 23,470 included children, 2820 (median age: 3 years) were prescribed esomeprazole, 13,818 (median age: 15 years) other PPIs and 6832 (median age: 5 years) H2RAs. In total, 504 (2%) children were hospitalized for 762 predefined events: gastroenteritis (246); convulsion/seizure (200); pneumonia (154); failure to thrive (119); acute interstitial nephritis (19); thrombocytopenia (23); and angioneurotic edema (1). Significant differences between cohorts were observed only for failure to thrive, with adjusted rate ratios (95% confidence interval) for esomeprazole of 6.1 (2.4-15.7) vs. other PPIs and 6.1 (2.9-12.8) vs. H2RAs among current users. Occurrence was confirmed for 74% of assessable events. Confirmation rates were highest for pneumonia (81%) and lowest for failure to thrive (40%). CONCLUSIONS Hospitalization rates for predefined outcomes were low and mostly similar in pediatric first-time users of PPIs and of H2RAs. TRIAL REGISTRATION NCT01338363.
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Affiliation(s)
- Eline Houben
- a PHARMO Institute for Drug Outcomes Research , Utrecht , Netherlands
| | - Saga Johansson
- b Global Medical Affairs, Medical Evidence and Observational Research Centre, AstraZeneca Gothenburg , Mölndal , Sweden (at the time of the study)
| | - Péter Nagy
- c AstraZeneca Gothenburg , Mölndal , Sweden (at the time of the study)
| | | | - Ernst J Kuipers
- d Department of Gastroenterology and Hepatology , Erasmus MC University Medical Center , Rotterdam , Netherlands
| | - Ron M C Herings
- a PHARMO Institute for Drug Outcomes Research , Utrecht , Netherlands
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Use acid-suppressing drugs appropriately with an individualized approach to minimize the risk of infection. DRUGS & THERAPY PERSPECTIVES 2018. [DOI: 10.1007/s40267-017-0473-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Abstract
This narrative review summarises the benefits, risks and appropriate use of acid-suppressing drugs (ASDs), proton pump inhibitors and histamine-2 receptor antagonists, advocating a rationale balanced and individualised approach aimed to minimise any serious adverse consequences. It focuses on current controversies on the potential of ASDs to contribute to infections-bacterial, parasitic, fungal, protozoan and viral, particularly in the elderly, comprehensively and critically discusses the growing body of observational literature linking ASD use to a variety of enteric, respiratory, skin and systemic infectious diseases and complications (Clostridium difficile diarrhoea, pneumonia, spontaneous bacterial peritonitis, septicaemia and other). The proposed pathogenic mechanisms of ASD-associated infections (related and unrelated to the inhibition of gastric acid secretion, alterations of the gut microbiome and immunity), and drug-drug interactions are also described. Both probiotics use and correcting vitamin D status may have a significant protective effect decreasing the incidence of ASD-associated infections, especially in the elderly. Despite the limitations of the existing data, the importance of individualised therapy and caution in long-term ASD use considering the balance of benefits and potential harms, factors that may predispose to and actions that may prevent/attenuate adverse effects is evident. A six-step practical algorithm for ASD therapy based on the best available evidence is presented.
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Abstract
Proton-pump inhibitors (PPIs) are the most effective therapy for the full spectrum of gastric-acid-related diseases. However, in the past decade, a steadily increasing list of complications following long-term use of PPIs has been reported. Their potent acid-suppressive action induces several structural and functional changes within the gastric mucosa, including fundic gland polyps, enterochromaffin-like cell hyperplasia and hypergastrinaemia, which can be exaggerated in the presence of Helicobacter pylori infection. As discussed in this Review, most associations of PPIs with severe adverse events are not based on sufficient evidence because of confounding factors and a lack of plausible mechanisms. Thus, a causal relationship remains unproven in most associations, and further studies are needed. Awareness of PPI-associated risks should not lead to anxiety in patients but rather should induce the physician to consider the appropriate dosing and duration of PPI therapy, including long-term monitoring strategies in selected groups of patients because of their individual comorbidities and risk factors.
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Abstract
PURPOSE OF REVIEW Proton pump inhibitor (PPI) use in gastroesophageal reflux disease (GERD) has been redefined, in light of recent advances highlighting GERD phenotypes that respond to PPIs, and fresh revelations of potential risks of long-term PPI therapy. RECENT FINDINGS Erosive esophagitis predicts excellent response to PPI therapy, but non-erosive reflux disease (NERD) with abnormal reflux parameters on ambulatory reflux monitoring also demonstrates a similar response. In contrast, response is suboptimal in the absence of abnormal reflux parameters. In this setting, if an alternate appropriate indication for PPI therapy does not coexist, risks may outweigh benefits of PPI therapy. Adverse events from long-term PPI therapy continue to be reported, most based on association rather than cause-and-effect. Appropriate indications need to be established before embarking on long-term PPI therapy. Future research will define true risks of long-term PPI therapy, and develop alternate management options for acid peptic diseases.
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Affiliation(s)
- C Prakash Gyawali
- Division of Gastroenterology, Washington University School of Medicine, 660 S. Euclid Ave, Campus Box 8124, St. Louis, MO, 63110, USA.
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Freedberg DE, Kim LS, Yang YX. The Risks and Benefits of Long-term Use of Proton Pump Inhibitors: Expert Review and Best Practice Advice From the American Gastroenterological Association. Gastroenterology 2017; 152:706-715. [PMID: 28257716 DOI: 10.1053/j.gastro.2017.01.031] [Citation(s) in RCA: 505] [Impact Index Per Article: 72.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The purpose of this review is to evaluate the risks associated with long-term use of proton pump inhibitors (PPIs), focusing on long-term use of PPIs for three common indications: gastroesophageal reflux disease (GERD), Barrett's esophagus (BE), and non-steroidal anti-inflammatory drug (NSAID) bleeding prophylaxis. METHODS The recommendations outlined in this review are based on expert opinion and on relevant publications from PubMed, EMbase, and the Cochrane library (through July 2016). To identify relevant ongoing trials, we queried clinicaltrials.gov. To assess the quality of evidence, we used a modified approach based on the GRADE Working Group. The Clinical Practice Updates Committee of the American Gastroenterological Association has reviewed these recommendations. Best Practice Advice 1: Patients with GERD and acid-related complications (ie, erosive esophagitis or peptic stricture) should take a PPI for short-term healing, maintenance of healing, and long-term symptom control. Best Practice Advice 2: Patients with uncomplicated GERD who respond to short-term PPIs should subsequently attempt to stop or reduce them. Patients who cannot reduce PPIs should consider ambulatory esophageal pH/impedance monitoring before committing to lifelong PPIs to help distinguish GERD from a functional syndrome. The best candidates for this strategy may be patients with predominantly atypical symptoms or those who lack an obvious predisposition to GERD (eg, central obesity, large hiatal hernia). Best Practice Advice 3: Patients with Barrett's esophagus and symptomatic GERD should take a long-term PPI. Best Practice Advice 4: Asymptomatic patients with Barrett's esophagus should consider a long-term PPI. Best Practice Advice 5: Patients at high risk for ulcer-related bleeding from NSAIDs should take a PPI if they continue to take NSAIDs. Best Practice Advice 6: The dose of long-term PPIs should be periodically reevaluated so that the lowest effective PPI dose can be prescribed to manage the condition. Best Practice Advice 7: Long-term PPI users should not routinely use probiotics to prevent infection. Best Practice Advice 8: Long-term PPI users should not routinely raise their intake of calcium, vitamin B12, or magnesium beyond the Recommended Dietary Allowance (RDA). Best Practice Advice 9: Long-term PPI users should not routinely screen or monitor bone mineral density, serum creatinine, magnesium, or vitamin B12. Best Practice Advice 10: Specific PPI formulations should not be selected based on potential risks.
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Affiliation(s)
- Daniel E Freedberg
- Division of Digestive and Liver Diseases, Columbia University Medical Center, New York, New York.
| | - Lawrence S Kim
- South Denver Gastroenterology, P.C., Littleton, Colorado
| | - Yu-Xiao Yang
- Divison of Gastroenterology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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Othman F, Crooks CJ, Card TR. Community acquired pneumonia incidence before and after proton pump inhibitor prescription: population based study. BMJ 2016; 355:i5813. [PMID: 28715344 PMCID: PMC5110150 DOI: 10.1136/bmj.i5813] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/18/2016] [Indexed: 01/01/2023]
Abstract
Objective To examine the risk of community acquired pneumonia before and after prescription of proton pump inhibitor (PPI) and assess whether unmeasured confounding explains this association.Design Cohort study and self controlled case series.Setting Clinical Practice Research Datalink (1990 to 2013) in UK.Participants Adult patients with a new prescription for a PPI individually matched with controls.Main outcome measures Association of community acquired pneumonia with PPI prescription estimated by three methods: a multivariable Cox model comparing risk in PPI exposed patients with controls, corrected for potential confounders; a self controlled case series; and a prior event rate ratio (PERR) analysis over the 12 month periods before and after the first PPI prescription.Results 160 000 new PPI users were examined. The adjusted Cox regression showed a risk of community acquired pneumonia 1.67 (95% confidence interval 1.55 to 1.79) times higher for patients exposed to PPI than for controls. In the self controlled case series, among 48 451 PPI exposed patients with a record of community acquired pneumonia, the incidence rate ratio was 1.19 (95% confidence interval 1.14 to 1.25) in the 30 days after PPI prescription but was higher in the 30 days before a PPI prescription (1.92, 1.84 to 2.00). The Cox regressions for prior event rate ratio similarly showed a greater increase in community acquired pneumonia in the year before than the year after PPI prescription, such that the analysis showed a reduced relative risk of pneumonia associated with PPI use (prior event rate ratio 0.91, 95% confidence interval 0.83 to 0.99).Conclusion The association between the use of PPIs and risk of community acquired pneumonia is likely to be due entirely to confounding factors.
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Affiliation(s)
- Fatmah Othman
- Department of Epidemiology and Public Health, University of Nottingham, Nottingham NG5 1PB, UK
- Department of Basic Medical Sciences, King Saud bin Abdulaziz University for Health Sciences, Saudi Arabia
| | - Colin J Crooks
- Department of Epidemiology and Public Health, University of Nottingham, Nottingham NG5 1PB, UK
| | - Timothy R Card
- Department of Epidemiology and Public Health, University of Nottingham, Nottingham NG5 1PB, UK
- NIHR Nottingham Digestive Diseases Biomedical Research Unit, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham, UK
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