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Floria DE, Obeidat M, Kávási SB, Teutsch B, Veres DS, Hagymási K, Hegyi P, Drug VL, Erőss B. Systematic review and meta-analysis: proton pump inhibitors slightly decrease the severity of chronic cough. Sci Rep 2024; 14:11956. [PMID: 38796481 PMCID: PMC11127940 DOI: 10.1038/s41598-024-62640-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 05/20/2024] [Indexed: 05/28/2024] Open
Abstract
The Montreal consensus recognizes chronic cough as an extra-esophageal manifestation of gastroesophageal reflux disease. We performed a meta-analysis to assess the effects of acid-suppressive medications in adults with non-specific chronic cough. The protocol was registered on PROSPERO (CRD42022368769). Placebo-controlled randomized trials evaluating the impact of acid-suppressive medications on persistent cough were included. The systematic search was performed on the 1st of November 2022 in three databases. A random-effects model was used for the calculations. The effect size was the standardized mean difference (SMD) with 95% confidence interval (CI). A total number of 11 double-blinded placebo-controlled randomized trials were included in the meta-analysis. Data showed that compared to placebo, PPIs decreased the severity of cough (SMD 0.33; CI 0.05; 0.61). Therapeutic response was not different in patients with non-specific chronic cough only, compared to those with laryngopharyngeal reflux. Prolonged treatment durations did not result in greater symptomatic improvement, with SMD 0.33 (CI - 0.22; 0.88), 0.31 (CI - 1.74; 2.35), 0.32 (CI - 0.29; 0.93) and 0.34 (CI - 0.16; 0.85), following 4, 6, 8 and 12 weeks of treatment, respectively. The pooled analysis of the improvement in quality of life with PPIs found an SMD of 0.39 (CI - 0.51; 1.29). PPIs mildly decrease the severity of non-specific chronic cough, irrespective of treatment duration.
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Affiliation(s)
- Diana-Elena Floria
- Centre for Translational Medicine, Semmelweis University, Üllői Út 26, Budapest, 1085, Hungary
- Grigore T. Popa University of Medicine and Pharmacy Iaşi, University Street 16, Iaşi, 700115, Romania
- Institute of Gastroenterology and Hepatology, Saint Spiridon Emergency Hospital Iaşi, Independence Boulevard 1, Iaşi, 700111, Romania
| | - Mahmoud Obeidat
- Centre for Translational Medicine, Semmelweis University, Üllői Út 26, Budapest, 1085, Hungary
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary
| | - Sarolta Beáta Kávási
- Centre for Translational Medicine, Semmelweis University, Üllői Út 26, Budapest, 1085, Hungary
- Department of Surgery, Toldy Ferenc Hospital, Cegléd, Hungary
| | - Brigitta Teutsch
- Centre for Translational Medicine, Semmelweis University, Üllői Út 26, Budapest, 1085, Hungary
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary
| | - Dániel Sándor Veres
- Centre for Translational Medicine, Semmelweis University, Üllői Út 26, Budapest, 1085, Hungary
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Krisztina Hagymási
- Centre for Translational Medicine, Semmelweis University, Üllői Út 26, Budapest, 1085, Hungary
- Department of Surgery, Transplantation and Gastroenterology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Péter Hegyi
- Centre for Translational Medicine, Semmelweis University, Üllői Út 26, Budapest, 1085, Hungary
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary
- Institute of Pancreatic Diseases, Semmelweis University, Budapest, Hungary
| | - Vasile-Liviu Drug
- Grigore T. Popa University of Medicine and Pharmacy Iaşi, University Street 16, Iaşi, 700115, Romania
- Institute of Gastroenterology and Hepatology, Saint Spiridon Emergency Hospital Iaşi, Independence Boulevard 1, Iaşi, 700111, Romania
| | - Bálint Erőss
- Centre for Translational Medicine, Semmelweis University, Üllői Út 26, Budapest, 1085, Hungary.
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary.
- Institute of Pancreatic Diseases, Semmelweis University, Budapest, Hungary.
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2
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Hránková V, Balner T, Gubová P, Staníková L, Zeleník K, Komínek P. Narrative review of relationship between chronic cough and laryngopharyngeal reflux. Front Med (Lausanne) 2024; 11:1348985. [PMID: 38707186 PMCID: PMC11066273 DOI: 10.3389/fmed.2024.1348985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 04/08/2024] [Indexed: 05/07/2024] Open
Abstract
Gastroesophageal reflux disease (GERD) as a possible cause of chronic cough is known for decades. However, more than 75% of patients with extraoesophageal symptoms do not suffer from typical symptoms of GERD like pyrosis and regurgitations and have negative upper gastrointestinal endoscopy. For such a condition term laryngopharyngeal reflux (LPR) was introduced and is used for more than two decades. Since the comprehensive information on relationship between chronic cough and LPR is missing the aim of this paper is to summarize current knowledge based on review of published information during last 13 years. Laryngopharyngeal reflux is found in 20% of patients with chronic cough. The main and recognized diagnostic method for LPR is 24-h multichannel intraluminal impedance-pH (MII-pH) monitoring, revealing reflux episodes irritating the upper and lower respiratory tract mucosa. The treatment of LPR should be initiated with dietary and lifestyle measures, followed by proton pump inhibitor (PPI) therapy and other measures. Despite progress, more research is needed for accurate diagnosis and targeted therapies. Key areas for exploration include biomarkers for diagnosis, the impact of non-acid reflux on symptom development, and the efficacy of new drugs. Further studies with a focused population, excluding other causes like asthma, and using new diagnostic criteria for LPR are essential. It's crucial to consider LPR as a potential cause of unexplained chronic cough and to approach diagnosis and treatment with a multidisciplinary perspective.
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Affiliation(s)
- Viktória Hránková
- Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital of Ostrava, Ostrava, Czechia
- Department of Craniofacial Surgery, Faculty of Medicine, University of Ostrava, Ostrava, Czechia
| | - Tomáš Balner
- Department of Allergology and Clinical Immunology, University Hospital of Ostrava, Ostrava, Czechia
- Department of Biomedical Sciences, Faculty of Medicine, University of Ostrava, Ostrava, Czechia
| | - Patrícia Gubová
- Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital of Ostrava, Ostrava, Czechia
| | - Lucia Staníková
- Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital of Ostrava, Ostrava, Czechia
- Department of Craniofacial Surgery, Faculty of Medicine, University of Ostrava, Ostrava, Czechia
| | - Karol Zeleník
- Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital of Ostrava, Ostrava, Czechia
- Department of Craniofacial Surgery, Faculty of Medicine, University of Ostrava, Ostrava, Czechia
| | - Pavel Komínek
- Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital of Ostrava, Ostrava, Czechia
- Department of Craniofacial Surgery, Faculty of Medicine, University of Ostrava, Ostrava, Czechia
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3
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Dutta AK, Jain A, Jearth V, Mahajan R, Panigrahi MK, Sharma V, Goenka MK, Kochhar R, Makharia G, Reddy DN, Kirubakaran R, Ahuja V, Berry N, Bhat N, Dutta U, Ghoshal UC, Jain A, Jalihal U, Jayanthi V, Kumar A, Nijhawan S, Poddar U, Ramesh GN, Singh SP, Zargar S, Bhatia S. Guidelines on optimizing the use of proton pump inhibitors: PPI stewardship. Indian J Gastroenterol 2023; 42:601-628. [PMID: 37698821 DOI: 10.1007/s12664-023-01428-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 07/10/2023] [Indexed: 09/13/2023]
Abstract
Proton pump inhibitors (PPIs) have been available for over three decades and are among the most commonly prescribed medications. They are effective in treating a variety of gastric acid-related disorders. They are freely available and based on current evidence, use of PPIs for inappropriate indications and duration appears to be common. Over the years, concerns have been raised on the safety of PPIs as they have been associated with several adverse effects. Hence, there is a need for PPI stewardship to promote the use of PPIs for appropriate indication and duration. With this objective, the Indian Society of Gastroenterology has formulated guidelines on the rational use of PPIs. The guidelines were developed using a modified Delphi process. This paper presents these guidelines in detail, including the statements, review of literature, level of evidence and recommendations. This would help the clinicians in optimizing the use of PPIs in their practice and promote PPI stewardship.
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Affiliation(s)
- Amit Kumar Dutta
- Department of Gastroenterology, Christian Medical College and Hospital, Vellore, 632 004, India.
| | | | - Vaneet Jearth
- Postgraduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Ramit Mahajan
- Dayanand Medical College and Hospital, Ludhiana, 141 001, India
| | | | - Vishal Sharma
- Postgraduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | | | | | - Govind Makharia
- All India Institute of Medical Sciences, New Delhi, 110 029, India
| | | | - Richard Kirubakaran
- Center of Biostatistics and Evidence Based Medicine, Vellore, 632 004, India
| | - Vineet Ahuja
- All India Institute of Medical Sciences, New Delhi, 110 029, India
| | - Neha Berry
- BLK Institute of Digestive and Liver Disease, New Delhi, 201 012, India
| | - Naresh Bhat
- Aster CMI Hospital, Bengaluru, 560 092, India
| | - Usha Dutta
- Postgraduate Institute of Medical Education and Research, Chandigarh, 160 012, India
| | - Uday Chand Ghoshal
- Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, 226 014, India
| | - Ajay Jain
- Choithram Hospital and Research Center, Indore, 452 014, India
| | | | - V Jayanthi
- Sri Ramachandra Medical College, Chennai, 600 116, India
| | - Ajay Kumar
- Institute of Digestive and Liver Diseases, BLK - Max Superspeciality Hospital, New Delhi, 201 012, India
| | | | - Ujjal Poddar
- Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, 226 014, India
| | | | - Shivram P Singh
- Kalinga Gastroenterology Foundation, Cuttack, 753 001, India
| | - Showkat Zargar
- Department of Gastroenterology, Sher-i-Kashmir Institute of Medical Sciences, Kashmir, 190 011, India
| | - Shobna Bhatia
- Sir H N Reliance Foundation Hospital, Mumbai, 400 004, India
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4
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Zhang M, Sykes DL, Brindle K, Sadofsky LR, Morice AH. Chronic cough-the limitation and advances in assessment techniques. J Thorac Dis 2022; 14:5097-5119. [PMID: 36647459 PMCID: PMC9840016 DOI: 10.21037/jtd-22-874] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 11/04/2022] [Indexed: 11/23/2022]
Abstract
Accurate and consistent assessments of cough are essential to advance the understanding of the mechanisms of cough and individualised the management of patients. Considerable progress has been made in this work. Here we reviewed the currently available tools for subjectively and objectively measuring both cough sensitivity and severity. We also provided some opinions on the new techniques and future directions. The simple and practical Visual Analogue Scale (VAS), the Leicester Cough Questionnaire (LCQ), and the Cough Specific Quality of Life Questionnaire (CQLQ) are the most widely used self-reported questionnaires for evaluating and quantifying cough severity. The Hull Airway Reflux Questionnaire (HARQ) is a tool to elucidate the constellation of symptoms underlying the diagnosis of chronic cough. Chemical excitation tests are widely used to explore the pathophysiological mechanisms of the cough reflex, such as capsaicin, citric acid and adenosine triphosphate (ATP) challenge test. Cough frequency is an ideal primary endpoint for clinical research, but the application of cough counters has been limited in clinical practice by the high cost and reliance on aural validation. The ongoing development of cough detection technology for smartphone apps and wearable devices will hopefully simplify cough counting, thus transitioning it from niche research to a widely available clinical application.
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Affiliation(s)
- Mengru Zhang
- Centre for Clinical Science, Respiratory Medicine, Hull York Medical School, University of Hull, Castle Hill Hospital, Cottingham, East Yorkshire, UK;,Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Dominic L. Sykes
- Centre for Clinical Science, Respiratory Medicine, Hull York Medical School, University of Hull, Castle Hill Hospital, Cottingham, East Yorkshire, UK
| | - Kayleigh Brindle
- Centre for Clinical Science, Respiratory Medicine, Hull York Medical School, University of Hull, Castle Hill Hospital, Cottingham, East Yorkshire, UK
| | - Laura R. Sadofsky
- Centre for Clinical Science, Respiratory Medicine, Hull York Medical School, University of Hull, Castle Hill Hospital, Cottingham, East Yorkshire, UK
| | - Alyn H. Morice
- Centre for Clinical Science, Respiratory Medicine, Hull York Medical School, University of Hull, Castle Hill Hospital, Cottingham, East Yorkshire, UK
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5
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Wu J, Ma Y, Chen Y. GERD-related chronic cough: Possible mechanism, diagnosis and treatment. Front Physiol 2022; 13:1005404. [PMID: 36338479 PMCID: PMC9630749 DOI: 10.3389/fphys.2022.1005404] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/07/2022] [Indexed: 11/04/2023] Open
Abstract
GERD, or gastroesophageal reflux disease, is a prevalent medical condition that affects millions of individuals throughout the world. Chronic cough is often caused by GERD, and chronic cough caused by GER is defined as GERD-related chronic cough (GERC). It is still unclear what the underlying molecular mechanism behind GERC is. Reflux theory, reflex theory, airway allergies, and the novel mechanism of esophageal motility disorders are all assumed to be linked to GERC. Multichannel intraluminal impedance combined with pH monitoring remains the gold standard for the diagnosis of GERC, but is not well tolerated by patients due to its invasive nature. Recent discoveries of new impedance markers and new techniques (mucosal impedance testing, salivary pepsin, real-time MRI and narrow band imaging) show promises in the diagnosis of GERD, but the role in GERC needs further investigation. Advances in pharmacological treatment include potassium-competitive acid blockers and neuromodulators (such as Baclofen and Gabapentin), prokinetics and herbal medicines, as well as non-pharmacological treatments (such as lifestyle changes and respiratory exercises). More options have been provided for the treatment of GERC other than acid suppression therapy and anti-reflux surgery. In this review, we attempt to review recent advances in GERC mechanism, diagnosis, and subsequent treatment options, so as to provide guidance for management of GERC.
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Affiliation(s)
| | - Yiming Ma
- Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yan Chen
- Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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6
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Xiao S, Li J, Zheng H, Li X, Yang H, Zhang J, Peng X, Zhou S, Zhao C, Chen D, Xiao X, Shi L, Huangfu H, Tao Z, Chen X, Liu Y, Qu S, Wang G, Chen T, Cui X, Tian L, Zhou W, Fang H, Huang Y, Yu G, Lin Z, Tang L, He J, Ma R, Yu Z. Awareness about laryngopharyngeal reflux disease among Chinese otolaryngologists: a nationwide survey. BMJ Open 2022; 12:e058852. [PMID: 35732392 PMCID: PMC9226935 DOI: 10.1136/bmjopen-2021-058852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES This study aimed to investigate the status of the current knowledge about laryngopharyngeal reflux disease (LPRD) among Chinese otolaryngologists. DESIGN Multi-centre cross-sectional survey. SETTING 220 medical centres in different regions of China. PARTICIPANTS A total of 2254 otolaryngologists from 220 medical centres in China who were successfully on-site surveyed between November 2019 and December 2020. MAIN OUTCOME MEASURES Awareness about LPRD included knowledge about risk factors, symptoms, laryngoscope signs, related diseases, current diagnostic methods and treatments. RESULTS The percentage of participants who had heard of LPRD was 96.4%, with academic conferences as the most common source of information (73.3%). The most commonly known risk factor, symptom, laryngoscope sign, related disease, diagnostic method and treatment were alcohol consumption (44.0%), pharyngeal foreign body sensation (66.9%), hyperaemia (52.4%), pharyngolaryngitis (54.8%), pH monitoring (47.6%) and medication (82.1%), respectively. Only 28.3% of all participants knew that 24 h pH or multichannel intraluminal impedance pH monitoring was the most accurate diagnostic test. As many as 73.1% of all participants knew that proton pump inhibitors were the first-line treatment drugs. An analysis of the overall status of awareness using a scoring system suggested that otolaryngologists were better aware owing to more access, working at 3A hospitals, and postgraduate or above educational background (all p<0.05). CONCLUSION Although the majority of Chinese otolaryngologists had heard of LPRD, their overall awareness about the disease was not encouraging. More efforts are needed to increase the knowledge about LPRD among this group of physicians. TRIAL REGISTRATION NUMBER ChiCTR1900025581.
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Affiliation(s)
- Shuifang Xiao
- Department of Otolaryngology, Head and Neck Surgery, Peking University First Hospital, Beijing, China
| | - Jinrang Li
- Department of Otolaryngology, Head and Neck Surgery, The Sixth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hongliang Zheng
- Department of Otolaryngology, Head and Neck Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xiangping Li
- Department of Otolaryngology, Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Hui Yang
- Department of Otolaryngology, Head and Neck Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Junbo Zhang
- Department of Otolaryngology, Head and Neck Surgery, Peking University First Hospital, Beijing, China
| | - Xiaoxia Peng
- Clinical Epidemiology and Evidence-based Medicine Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Shuihong Zhou
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Chen Zhao
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Donghui Chen
- Department of Otolaryngology, Head and Neck Surgery, Jiangsu Province Hospital, Nanjing, Jiangsu, China
| | - Xuping Xiao
- Department of Otolaryngology, Head and Neck Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Li Shi
- Department of Otolaryngology, Head and Neck Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Hui Huangfu
- Department of Otolaryngology, Head and Neck Surgery, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Zhenfeng Tao
- Department of Otolaryngology, Head and Neck Surgery, Bethune International Peace Hospital, Shijiazhuang, Hebei, China
| | - Xiong Chen
- Department of Otolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yehai Liu
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Shenhong Qu
- Department of Otolaryngology, Head and Neck Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Guangke Wang
- Department of Otolaryngology, Head and Neck Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Ting Chen
- Department of Otolaryngology, Head and Neck Surgery, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Xiaobo Cui
- Department of Otolaryngology, Head and Neck Surgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Linli Tian
- Department of Otolaryngology, Head and Neck Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Wensheng Zhou
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Hongyan Fang
- Department of Otolaryngology, Head and Neck Surgery, Chongqing General Hospital, Chongqing, China
| | - Yongwang Huang
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Guodong Yu
- Department of Otolaryngology, Head and Neck Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhenqun Lin
- Department of Otolaryngology, Head and Neck Surgery, Hainan Provincial People's Hospital, Haikou, Hainan, China
| | - Liang Tang
- Department of Otolaryngology, Head and Neck Surgery, The People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Jian He
- Department of Otolaryngology, Head and Neck Surgery, Gansu Provincial Hospital, Lanzhou, Gansu, China
| | - Ruixia Ma
- Department of Otolaryngology, Head and Neck Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Zhaoyan Yu
- Department of Otolaryngology, Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong Provincial ENT Hospital Affiliated to Shandong University, Jinan, Shandong, China
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Abstract
PURPOSE OF REVIEW This review explores the recent evidence and established scientific literature surrounding proton pump inhibitors in the context of laryngology. RECENT FINDINGS Proton pump inhibitors are often associated with gastroenterology; however, they also have a place in laryngology. Several laryngopharyngeal disorders are treated with proton pump inhibitors, though limited evidence regarding effectiveness, dosing and length of treatment exists. With the recent influx of articles reporting possible adverse effects of proton pump inhibitors, the appropriate prescribing of them has come under scrutiny. These reported risks include cancer, stroke, myocardial infarction, kidney disease and cognitive decline. It should be noted though that many of these studies by nature, are fraught with potential confounding. Regardless, clinicians ought to be aware of any risks associated with treatment regimens and prescribe the optimal dosage and duration. SUMMARY Proton pump inhibitor treatment should be dose-appropriate and for a limited duration. Concerning potential adverse effects, the limitations of retrospective cohort studies must be taken into consideration when reviewing the evidence.
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8
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Abstract
Esophageal symptoms are common and may indicate the presence of gastroesophageal reflux disease (GERD), structural processes, motor dysfunction, behavioral conditions, or functional disorders. Esophageal physiologic tests are often performed when initial endoscopic evaluation is unrevealing, especially when symptoms persist despite empiric management. Commonly used esophageal physiologic tests include esophageal manometry, ambulatory reflux monitoring, and barium esophagram. Functional lumen imaging probe (FLIP) has recently been approved for the evaluation of esophageal pressure and dimensions using volumetric distension of a catheter-mounted balloon and as an adjunctive test for the evaluation of symptoms suggestive of motor dysfunction. Targeted utilization of esophageal physiologic tests can lead to definitive diagnosis of esophageal disorders but can also help rule out organic disorders while making a diagnosis of functional esophageal disorders. Esophageal physiologic tests can evaluate obstructive symptoms (dysphagia and regurgitation), typical and atypical GERD symptoms, and behavioral symptoms (belching and rumination). Certain parameters from esophageal physiologic tests can help guide the management of GERD and predict outcomes. In this ACG clinical guideline, we used the Grading of Recommendations Assessment, Development and Evaluation process to describe performance characteristics and clinical value of esophageal physiologic tests and provide recommendations for their utilization in routine clinical practice.
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9
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Abstract
Chronic cough is a common condition, and generally affects about 3% of Korean adults with a significant influence on quality of life (QoL). Despite continued clinical and academic efforts, there are unmet needs for chronic cough prevention and management in Korea. Epidemiologically, there are two major challenges: an aging population and air pollution. Korea is one of the most rapidly aging countries, and the relative proportion of elderly to younger people is expected to double within the next two decades. Air pollution is a major concern, but there is very limited evidence on the effects of air pollutant on cough in Korean patients. Clinically, upper and lower airway diseases, such as rhinitis/rhinosinusitis and cough variant asthma/eosinophilic bronchitis, are reported to account for about 75% of chronic cough in Korean adults, which formed the basis in formulating clinical practice guidelines. However, further studies are warranted to resolve clinical uncertainty, particularly for the evaluation and treatment of upper airway conditions in chronic cough. The prevalence of gastroesophageal reflux disease (GERD) is increasing, thus its relevance to cough among Koreans may warrant re-evaluation. Infection-associated chronic cough, such as tuberculosis, is another continuing concern. The proportion of chronic refractory or unexplained cough is assumed to be 10–20% among patients visiting referral clinics for chronic cough. This review presents our perspectives on current epidemiological and clinical issues of chronic cough in Korea, and addresses major knowledge gaps and future research priorities.
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Affiliation(s)
- Ji-Hyang Lee
- Department of Allergy and Clinical Immunology, Airway Sensation and Cough Research Laboratory, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Woo-Jung Song
- Department of Allergy and Clinical Immunology, Airway Sensation and Cough Research Laboratory, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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10
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Klimara MJ, Randall DR, Allen J, Figueredo E, Johnston N. Proximal reflux: biochemical mediators, markers, therapeutic targets, and clinical correlations. Ann N Y Acad Sci 2020; 1481:127-138. [PMID: 32401362 DOI: 10.1111/nyas.14366] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/14/2020] [Accepted: 04/21/2020] [Indexed: 12/12/2022]
Abstract
Airway reflux is implicated in the pathophysiology of a wide range of adult and pediatric upper and lower airway diseases. However, the diagnosis of proximal reflux-associated disease remains challenging due to evolving clinical criteria and institutional and regional variances in diagnostic practices. Evidence suggests that nonacidic contents of reflux may serve as both pathologic mediators of and biomarkers for reflux in the upper airway. Furthermore, they offer potential pharmaceutical and surgical intervention targets and are the focus of novel clinical diagnostic tools currently under investigation.
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Affiliation(s)
- Miles J Klimara
- Department of Otolaryngology-Head & Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Derrick R Randall
- Department of Surgery, Section of Otolaryngology-Head & Neck Surgery, University of Calgary, Calgary, Alberta, Canada
| | - Jacqueline Allen
- Department of Otolaryngology-Head & Neck Surgery, University of Auckland, Auckland, New Zealand
| | - Edgar Figueredo
- Minimally Invasive Surgery, Surgical Critical Care, Department of Surgery, Seattle VA Medical Center, University of Washington, Seattle, Washington
| | - Nikki Johnston
- Department of Otolaryngology & Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin.,Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, Wisconsin
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11
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Li X, Lin S, Wang Z, Zhang H, Sun X, Li J, Wu D, Ke M, Fang X. Gastroesophageal reflux disease and chronic cough: A possible mechanism elucidated by ambulatory pH-impedance-pressure monitoring. Neurogastroenterol Motil 2019; 31:e13707. [PMID: 31482661 PMCID: PMC6899806 DOI: 10.1111/nmo.13707] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 07/15/2019] [Accepted: 08/06/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND The pathophysiological mechanism(s) of gastroesophageal reflux disease (GERD)-related chronic cough (CC) is unclear. We aimed to determine the mechanism of reflux-induced cough by synchronous monitoring of reflux episodes, esophageal motility, and cough. METHODS Patients with GERD were prospectively enrolled and classified into GERD with CC (GERD-CC) and without CC (GERD) groups. Twenty-four-hour ambulatory pH-impedance-pressure monitoring was performed; the reflux patterns, esophageal motility during prolonged exposure to acid and characteristics of reflux episodes that induced coughing paroxysms were analyzed. KEY RESULTS Thirty-one patients with GERD-CC and 47 with GERD were enrolled; all of whose monitoring results fulfilled the criteria for diagnosis of GERD. Patients with GERD-CC had higher reflux symptom scores, longer exposure to acid, higher DeMeester scores, and more frequent reflux episodes, proximal extent reflux detected by impedance, and higher percentage of strongly acidic reflux than patients in the GERD group (all P < .05). Of 63 reflux-cough episodes identified in the GERD-CC group, 74.6% of distal reflux and 67.0% of proximal reflux episodes were acidic. More patients had low pan-esophageal pressure in primary peristalsis (48.5% vs 11.8%, P = .000) and synchronous contraction in secondary peristalsis during prolonged exposure to acid in the GERD-CC than in the GERD group (63.9% vs 9.1%, P = .000). CONCLUSIONS & INFERENCES Proximal acidic reflux and distal reflux-reflex are jointly associated with reflux-induced cough in patients with GERD. Low pan-esophageal pressure in primary peristalsis and synchronous contraction in secondary peristalsis may play important roles in GERD-associated chronic cough.
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Affiliation(s)
- Xiaoqing Li
- Departement of GastroenterologyPeking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Sihui Lin
- Departement of GastroenterologyPeking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina,Department of GastroenterologyThe First Affiliated Hospital of Xiamen UniversityXiamenChina
| | - Zhifeng Wang
- Departement of GastroenterologyPeking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Hong Zhang
- Department of RespirationPeking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Xiaohong Sun
- Departement of GastroenterologyPeking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Ji Li
- Departement of GastroenterologyPeking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Dong Wu
- Departement of GastroenterologyPeking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Meiyun Ke
- Departement of GastroenterologyPeking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Xiucai Fang
- Departement of GastroenterologyPeking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
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12
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Liu J, Li X, Fan L, Yang J, Wang J, Sun J, Wang Z. Proton pump inhibitors therapy and risk of bone diseases: An update meta-analysis. Life Sci 2018; 218:213-223. [PMID: 30605646 DOI: 10.1016/j.lfs.2018.12.058] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 12/12/2018] [Accepted: 12/29/2018] [Indexed: 01/29/2023]
Abstract
AIMS Large observational studies have yielded conflicting results regarding whether the use of proton pump inhibitors (PPI) increases the risk of bone diseases. Here, we performed a meta-analysis to examine the link between PPI and risk of bone fractures, osteoporosis and bone mineral density (BMD) loss. MATERIALS AND METHODS We systematically performed a search for published reports on PubMed, EMBASE and the Cochrane Library. We considered articles published in English, and restricted the search to studies on human participants. Studies that reported adjusted Hazard ratio (HR) estimates with 95% confidence intervals (CI) for the associations of interest were included. Data from the articles which can be used to estimate standardized mean difference (SMD) were also obtained and utilized to assess the risk of BMD loss. KEY FINDINGS Compared with patients not taking PPI, those taking PPI, had the increased risk of developing any-site fractures (HR: 1.30; 95%CI: 1.16 to 1.45), hip fracture (HR:1.22; 95%CI:1.15 to 1.31), spine fracture (HR:1.49; 95%CI:1.31 to 1.68), and osteoporosis (HR:1.23; 95%CI:1.06 to 1.42) based on a random model, but there was no correlation with developing BMD loss in the femoral (SMD: -0.27; 95%CI: -0.62 to 0.09), or in the spine (SMD: -0.06; 95%CI: -0.54 to 0.41). SIGNIFICANCE Results of this meta-analysis suggest that PPI may moderately increase the risk of any-site, hip, spine fracture. Due to the widespread use of PPI and the impact of fractures on human health, clinicians should carefully evaluate the patient condition before prescribing PPI therapy.
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Affiliation(s)
- Jian Liu
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xianqing Li
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lei Fan
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jie Yang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiecong Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Zhenxing Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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