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Doruk C, Mocchetti V, Rives H, Christos P, Rameau A. Correlations Between Anxiety and/or Depression Diagnoses and Dysphagia Severity. Laryngoscope 2024; 134:2115-2120. [PMID: 37942834 PMCID: PMC11006580 DOI: 10.1002/lary.31164] [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: 08/11/2023] [Revised: 09/29/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023]
Abstract
OBJECTIVE An increased prevalence of mood and anxiety disorders in patients with dysphagia has been noted previously, but whether dysphagia severity may be exacerbated by anxiety and depression has never been studied before. The purpose of this study is to identify the effect of pre-existing diagnosis of anxiety and/or depression (anxiety/depression) on the Eating Assessment Tool (EAT-10), a validated patient-reported outcome measure for dysphagia. We hypothesized that patients with dysphagia and normal instrumental evaluation have higher EAT-10 score in the presence of pre-existing anxiety and depression. METHODS A retrospective chart review was conducted of patients seen at the multi-disciplinary dysphagia clinic of an urban academic institution. EAT-10 scores and pre-existing diagnoses of anxiety/depression were collected at the first visit with laryngologists. The two-sample t-test was used to compare mean EAT-10 scores between the anxiety/depression and no anxiety/depression groups, stratified by swallowing dysfunction etiology. RESULTS The study included 290 consecutive patients seen starting in January 2018. In this cohort, 60 (21%) had pre-existing anxiety, 49 (17%) depression, and 36 (12%) both. Overall, 59 patients had normal swallowing based on instrumental swallowing testing (flexible endoscopic evaluation of swallowing, videofluoroscopic swallow study, esophagram, or esophagoscopy). Among those, mean EAT-10 score was significantly higher in patients with anxiety and/or depression (n = 30) (14.63, SD = 11.42) compared to those with no anxiety and/or depression (n = 29) (8.93, SD = 6.59) (p = 0.023). CONCLUSION While anxiety/depression may aggravate dysphagia in patients with normal swallowing function, this correlation may not hold in those with objective swallowing dysfunction. LEVEL OF EVIDENCE 4 Laryngoscope, 134:2115-2120, 2024.
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Affiliation(s)
- Can Doruk
- Weill Cornell Medicine, Department of Otolaryngology-Head & Neck Surgery, Sean Parker Institute for the Voice, New York, NY
| | - Valentina Mocchetti
- Weill Cornell Medicine, Department of Otolaryngology-Head & Neck Surgery, Sean Parker Institute for the Voice, New York, NY
| | - Hal Rives
- Weill Cornell Medicine, Department of Otolaryngology-Head & Neck Surgery, Sean Parker Institute for the Voice, New York, NY
| | - Paul Christos
- Weill Cornell Medicine, Department of Population Health Sciences, New York, NY
| | - Anaïs Rameau
- Weill Cornell Medicine, Department of Otolaryngology-Head & Neck Surgery, Sean Parker Institute for the Voice, New York, NY
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2
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Ying LN, Sun Y, Cui LY, Zhang ZY, Li RF, Zhang J. Recent advances in the knowledge of the mechanism of reflux hypersensitivity. Scand J Gastroenterol 2024; 59:518-523. [PMID: 38343278 DOI: 10.1080/00365521.2024.2310177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/20/2024] [Indexed: 04/26/2024]
Abstract
Reflux hypersensitivity (RH) is a subtype of gastroesophageal reflux disease. The Rome IV criteria separated RH from the original nonerosive reflux disease subgroup and classified it as a new functional oesophageal disease. Recently, the pathogenesis of RH has become the focus of research. According to the latest research reports, upregulation of acid-sensitive receptors, distribution of calcitonin gene-related peptide-positive nerve fibres, and psychiatric comorbidity have key roles in the pathogenesis of RH. This work reviews the latest findings regarding RH mechanisms.
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Affiliation(s)
- Li Na Ying
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, P.R. China
| | - Yan Sun
- Department of Gastroenterology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, P.R. China
| | - Li Yang Cui
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, P.R. China
| | - Zhen Yu Zhang
- Graduate School of Bengbu Medical University, Bengbu, Anhui, P.R. China
| | - Rui Fang Li
- People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, P.R. China
| | - Jun Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, Zhejiang, P.R. China
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3
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Zamani M, Alizadeh-Tabari S, Chan WW, Talley NJ. Association Between Anxiety/Depression and Gastroesophageal Reflux: A Systematic Review and Meta-Analysis. Am J Gastroenterol 2023; 118:2133-2143. [PMID: 37463429 DOI: 10.14309/ajg.0000000000002411] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 07/14/2023] [Indexed: 07/20/2023]
Abstract
INTRODUCTION An association between gastroesophageal reflux disease (GERD) and common psychiatric conditions, most notably anxiety and depression, has been reported. However, the magnitude of this association is poorly understood. Therefore, we aimed to systematically assess this issue. METHODS We comprehensively searched multiple bibliographic databases (Embase, PubMed, Scopus, and Web of Science) from inception to May 15, 2023. We retrieved observational studies that reported the prevalence of anxiety and/or depressive symptoms diagnosed by validated questionnaires in ≥100 adults (aged 18 years or older) with GERD. We also included cohort studies that explored the risk of incident GERD in subjects with anxiety/depression vice versa scenario. Finally, we included Mendelian randomization studies that assessed the cause-and-effect relationship between anxiety/depression and GERD. The extracted data were combined using a random-effects model. RESULTS In total, 36 eligible studies were included. The pooled prevalences of anxiety and depressive symptoms were 34.4% (95% confidence interval [CI] 24.7-44.2; I2 = 99.4%) and 24.2% (95% CI 19.9-28.5; I2 = 98.8%) in subjects with GERD based on 30 studies, respectively. Both anxiety and depressive symptoms were more common in subjects with GERD compared with those in healthy controls (odds ratio = 4.46 [95% CI 1.94-10.25] and odds ratio = 2.56 [95% CI 1.11-5.87], respectively). According to 3 cohort studies, subjects with GERD were at an increased risk of developing anxiety/depression and vice versa. Finally, 3 Mendelian randomization studies showed that genetic liability to these mood disorders is linked to an increased risk of developing GERD and vice versa. DISCUSSION Up to 1 in 3 subjects with GERD experience anxiety and depression. There is likely a bidirectional causal relationship between anxiety/depression and GERD.
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Affiliation(s)
- Mohammad Zamani
- Digestive Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shaghayegh Alizadeh-Tabari
- Digestive Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Walter W Chan
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, Newcastle, Australia
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4
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Vogel M, Binneböse M, Lohmann CH, Junne F, Berth A, Riediger C. Are Anxiety and Depression Taking Sides with Knee-Pain in Osteoarthritis? J Clin Med 2022; 11:1094. [PMID: 35207366 PMCID: PMC8876729 DOI: 10.3390/jcm11041094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 12/03/2022] Open
Abstract
INTRODUCTION Total knee arthroplasty (TKA) bears a potential of rendering patients unsatisfied with the operation as a result of negative affectivity related to osteoarthritis and TKA. Not only is pain a lateralized experience, but negative affect and other psychosomatic correlates of pain might also be processed on grounds of lateralization. Lateralization in this context is likely linked to the amygdalae, which display differential left/right patterns of association with psychopathology. What is noteworthy is that osteoarthritis itself is linked not only to negative effects but also to childhood abuse. METHOD The present study tests lateralization of psychosomatic correlates of knee-pain using the brief symptom inventory-18 (BSI-18), the dissociative experiences scale (FDS-20), the pain catastrophizing scale (PCS), the Tampa scale of kinesiophobia (TSK), the childhood trauma screener (CTS) and WOMAC. More precisely, we were interested in predicting the side of operations by means of the above-mentioned constructs using binary logistic regression, based on 150 participants (78 left knees) awaiting TKA for knee-osteoarthritis. RESULTS Somatization (p = 0.003), childhood abuse (p = 0.04) and pain-catastrophizing (p = 0.04) predicted operations on the right side. Anxiety (p = 0.001) and kinesiophobia (p = 0.002) predicted operations on the left side. CONCLUSIONS Knee-pain may be differentially modulated by its psychosomatic correlates as a result of lateralization and corresponding patterns of psychosomatic reagibility.
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Affiliation(s)
- Matthias Vogel
- Department of Psychosmatic Medicine and Psychotherapy, Otto-von-Guericke-University of Magdeburg, 39120 Magdeburg, Germany; (M.B.); (F.J.)
| | - Marius Binneböse
- Department of Psychosmatic Medicine and Psychotherapy, Otto-von-Guericke-University of Magdeburg, 39120 Magdeburg, Germany; (M.B.); (F.J.)
| | - Christoph H. Lohmann
- Department of Orthopedic Surgery, Otto-von-Guericke-University of Magdeburg, 39120 Magdeburg, Germany; (C.H.L.); (A.B.); (C.R.)
| | - Florian Junne
- Department of Psychosmatic Medicine and Psychotherapy, Otto-von-Guericke-University of Magdeburg, 39120 Magdeburg, Germany; (M.B.); (F.J.)
| | - Alexander Berth
- Department of Orthopedic Surgery, Otto-von-Guericke-University of Magdeburg, 39120 Magdeburg, Germany; (C.H.L.); (A.B.); (C.R.)
| | - Christian Riediger
- Department of Orthopedic Surgery, Otto-von-Guericke-University of Magdeburg, 39120 Magdeburg, Germany; (C.H.L.); (A.B.); (C.R.)
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5
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Meeker TJ, Schmid AC, Liu Y, Keaser ML, Dorsey SG, Seminowicz DA, Greenspan JD. During capsaicin-induced central sensitization, brush allodynia is associated with baseline warmth sensitivity, whereas mechanical hyperalgesia is associated with painful mechanical sensibility, anxiety and somatization. Eur J Pain 2021; 25:1971-1993. [PMID: 34051016 DOI: 10.1002/ejp.1815] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 05/23/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Mechanical hyperalgesia and allodynia incidence varies considerably amongst neuropathic pain patients. This study explored whether sensory or psychological factors associate with mechanical hyperalgesia and brush allodynia in a human experimental model. METHODS Sixty-six healthy volunteers (29 male) completed psychological questionnaires and participated in two quantitative sensory testing (QST) sessions. Warmth detection threshold (WDT), heat pain threshold (HPT) and suprathreshold mechanical pain (STMP) ratings were measured before exposure to a capsaicin-heat pain model (C-HP). After C-HP exposure, brush allodynia and STMP were measured in one session, whilst mechanical hyperalgesia was measured in another session. RESULTS WDT and HPT measured in sessions separated by 1 month demonstrated significant but moderate levels of reliability (WDT: ICC = 0.5, 95%CI [0.28, 0.77]; HPT: ICC = 0.62, 95%CI [0.40, 0.77]). Brush allodynia associated with lower WDT (z = -3.06, p = 0.002; ϕ = 0.27). Those with allodynia showed greater hyperalgesia intensity (F = 7.044, p = 0.010, ηp 2 = 0.107) and area (F = 9.319, p = 0.004, ηp 2 = 0.163) than those without allodynia. No psychological self-report measures were significantly different between allodynic and nonallodynic groups. Intensity of hyperalgesia in response to lighter mechanical stimuli was associated with lower HPT, higher STMP ratings and higher Pain Sensitivity Questionnaire scores at baseline. Hyperalgesia to heavier probe stimuli associated with state anxiety and to a lesser extent somatic awareness. Hyperalgesic area associated with lower baseline HPT and higher STMP ratings. Hyperalgesic area was not correlated with allodynic area across individuals. CONCLUSIONS These findings support research in neuropathic pain patients and human experimental models that peripheral sensory input and individual sensibility are related to development of mechanical allodynia and hyperalgesia during central sensitization, whilst psychological factors play a lesser role. SIGNIFICANCE We evaluated differential relationships of psychological and perceptual sensitivity to the development of capsaicin-induced mechanical allodynia and hyperalgesia. Fifty percent of healthy volunteers failed to develop mechanical allodynia. Baseline pain sensitivity was greater in those developing allodynia and was related to the magnitude and area of hyperalgesia. State psychological factors, whilst unrelated to allodynia, were related to mechanical hyperalgesia. This supports that the intensity of peripheral sensory input and individual sensibility are related to development of mechanical allodynia and hyperalgesia during central sensitization, whilst psychological factors play a lesser role.
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Affiliation(s)
- Timothy J Meeker
- Department of Neural and Pain Sciences, School of Dentistry and Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD, USA.,Department of Neurosurgery, Johns Hopkins University, Baltimore, MD, USA
| | - Anne-Christine Schmid
- Department of Neural and Pain Sciences, School of Dentistry and Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD, USA.,Department of Neurosurgery, Johns Hopkins University, Baltimore, MD, USA.,Clinical Neuroengineering, BrainMind Institute and Centre of Neuroprosthetics (CNP), Swiss Federal Institute of Technology (EPFL), Geneva, Switzerland.,Swiss Federal Institute of Technology Valais (EPFL Valais), Sion, Switzerland.,WyssCenter of Bio and Neuroengineering, Geneva, Switzerland
| | - Yiming Liu
- Department of Neural and Pain Sciences, School of Dentistry and Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD, USA.,Department of Pain Medicine, Peking University People's Hospital, Beijing, China
| | - Michael L Keaser
- Department of Neural and Pain Sciences, School of Dentistry and Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD, USA
| | - Susan G Dorsey
- Department of Pain and Translational Symptom Science, School of Nursing and Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD, USA
| | - David A Seminowicz
- Department of Neural and Pain Sciences, School of Dentistry and Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD, USA
| | - Joel D Greenspan
- Department of Neural and Pain Sciences, School of Dentistry and Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD, USA
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6
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Zerbib F, Bredenoord AJ, Fass R, Kahrilas PJ, Roman S, Savarino E, Sifrim D, Vaezi M, Yadlapati R, Gyawali CP. ESNM/ANMS consensus paper: Diagnosis and management of refractory gastro-esophageal reflux disease. Neurogastroenterol Motil 2021; 33:e14075. [PMID: 33368919 DOI: 10.1111/nmo.14075] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/11/2020] [Accepted: 12/13/2020] [Indexed: 02/08/2023]
Abstract
Up to 40% of patients with symptoms suspicious of gastroesophageal reflux disease (GERD) do not respond completely to proton pump inhibitor (PPI) therapy. The term "refractory GERD" has been used loosely in the literature. A distinction should be made between refractory symptoms (ie, symptoms may or may not be GERD-related), refractory GERD symptoms (ie, persisting symptoms in patients with proven GERD, regardless of relationship to ongoing reflux), and refractory GERD (ie, objective evidence of GERD despite adequate medical management). The present ESNM/ANMS consensus paper proposes use the term "refractory GERD symptoms" only in patients with persisting symptoms and previously proven GERD by either endoscopy or esophageal pH monitoring. Even in this context, symptoms may or may not be reflux related. Objective evaluation, including endoscopy and esophageal physiologic testing, is requisite to provide insights into mechanisms of symptom generation and evidence of true refractory GERD. Some patients may have true ongoing refractory acid or weakly acidic reflux despite PPIs, while others have no evidence of ongoing reflux, and yet others have functional esophageal disorders (overlapping with proven GERD confirmed off therapy). In this context, attention should also be paid to supragastric belching and rumination syndrome, which may be important contributors to refractory symptoms.
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Affiliation(s)
- Frank Zerbib
- CHU de Bordeaux, Centre Medico-chirurgical Magellan, Hôpital Haut-Lévêque, Gastroenterology Department, Université de Bordeaux, INSERM CIC 1401, Bordeaux, France
| | | | - Ronnie Fass
- Digestive Health Center, MetroHealth System, Cleveland, OH, USA
| | - Peter J Kahrilas
- Division of Gastroenterology and Hepatology, Northwestern University, Chicago, IL, USA
| | - Sabine Roman
- Hospices Civils de Lyon, Hôpital E Herriot, Digestive Physiology, Université de Lyon, Inserm U1032, LabTAU, Lyon, France
| | - Edoardo Savarino
- Division of Gastroenterology, Department of Surgical, Oncological and Gastroenterological Sciences, University Hospital of Padua, Padua, Italy
| | - Daniel Sifrim
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Michael Vaezi
- Division of Gastroenterology, Vanderbilt University, Nashville, TN, USA
| | - Rena Yadlapati
- Division of Gastroenterology, University of California San Diego School of Medicine, La Jolla, CA, USA
| | - C Prakash Gyawali
- Division of Gastroenterology, Washington University School of Medicine, St. Louis, MO, USA
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7
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Cibert-Goton V, Lam C, Lingaya M, Falcone Y, Wood JN, Bulmer DC, Spiller R. Pain Severity Correlates With Biopsy-Mediated Colonic Afferent Activation But Not Psychological Scores in Patients With IBS-D. Clin Transl Gastroenterol 2021; 12:e00313. [PMID: 33617189 PMCID: PMC7901800 DOI: 10.14309/ctg.0000000000000313] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/07/2021] [Indexed: 12/26/2022] Open
Abstract
INTRODUCTION Despite heterogeneity, an increased prevalence of psychological comorbidity and an altered pronociceptive gut microenvironment have repeatedly emerged as causative pathophysiology in patients with irritable bowel syndrome (IBS). Our aim was to study these phenomena by comparing gut-related symptoms, psychological scores, and biopsy samples generated from a detailed diarrhea-predominant IBS patient (IBS-D) cohort before their entry into a previously reported clinical trial. METHODS Data were generated from 42 patients with IBS-D who completed a daily 2-week bowel symptom diary, the Hospital Anxiety and Depression score, and the Patient Health Questionnaire-12 Somatic Symptom score and underwent unprepared flexible sigmoidoscopy. Sigmoid mucosal biopsies were separately evaluated using immunohistochemistry and culture supernatants to determine cellularity, mediator levels, and ability to stimulate colonic afferent activity. RESULTS Pain severity scores significantly correlated with the daily duration of pain (r = 0.67, P < 0.00001), urgency (r = 0.57, P < 0.0005), and bloating (r = 0.39, P < 0.05), but not with psychological symptom scores for anxiety, depression, or somatization. Furthermore, pain severity scores from individual patients with IBS-D were significantly correlated (r = 0.40, P < 0.008) with stimulation of colonic afferent activation mediated by their biopsy supernatant, but not with biopsy cell counts nor measured mediator levels. DISCUSSION Peripheral pronociceptive changes in the bowel seem more important than psychological factors in determining pain severity within a tightly phenotyped cohort of patients with IBS-D. No individual mediator was identified as the cause of this pronociceptive change, suggesting that nerve targeting therapeutic approaches may be more successful than mediator-driven approaches for the treatment of pain in IBS-D.
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Affiliation(s)
- Vincent Cibert-Goton
- National Centre for Bowel Research, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK;
| | - Ching Lam
- NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Melanie Lingaya
- NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Yirga Falcone
- NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - John N. Wood
- Molecular Nociception Group, Wolfson Institute of Biomedical Sciences, University College London, London, UK;
| | - David C. Bulmer
- National Centre for Bowel Research, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK;
- Department of Pharmacology, University of Cambridge, Cambridge, UK.
| | - Robin Spiller
- NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
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8
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Farmer AD, Albusoda A, Amarasinghe G, Ruffle JK, Fitzke HE, Idrees R, Fried R, Brock C, Aziz Q. Transcutaneous vagus nerve stimulation prevents the development of, and reverses, established oesophageal pain hypersensitivity. Aliment Pharmacol Ther 2020; 52:988-996. [PMID: 32767824 DOI: 10.1111/apt.15869] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/18/2020] [Accepted: 05/18/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND The vagus nerve exerts an anti-nociceptive effect on the viscera. AIM To investigate whether transcutaneous vagal nerve stimulation (t-VNS) prevents the development of and/or reverses established visceral hypersensitivity in a validated model of acid-induced oesophageal pain. METHODS Before and after a 30-minute infusion of 0.15M hydrochloric acid into the distal oesophagus, pain thresholds to electrical stimulation were determined in the proximal non-acid exposed oesophagus. Validated sympathetic (cardiac sympathetic index) and parasympathetic (cardiac vagal tone [CVT]) nervous system measures were recorded. In study 1, 15 healthy participants were randomised in a blinded crossover design to receive either t-VNS or sham for 30 minutes during acid infusion. In study 2, 18 different healthy participants were randomised in a blinded crossover design to receive either t-VNS or sham, for 30 minutes after acid infusion. RESULTS Study 1: t-VNS increased CVT (31.6% ± 58.7 vs -9.6 ± 20.6, P = 0.02) in comparison to sham with no effect on cardiac sympathetic index. The development of acid-induced oesophageal hypersensitivity was prevented with t-VNS in comparison to sham (15.5 mA per unit time (95% CI 4.9 - 26.2), P = 0.004). Study 2: t-VNS increased CVT (26.3% ± 32.7 vs 3 ± 27.1, P = 0.03) in comparison to sham with no effect on cardiac sympathetic index. t-VNS reversed established acid-induced oesophageal hypersensitivity in comparison to sham (17.3mA/unit time (95% CI 9.8-24.7), P = 0.0001). CONCLUSIONS t-VNS prevents the development of, and reverses established, acid-induced oesophageal hypersensitivity. These results have therapeutic implications for the management of visceral pain hypersensitivity.
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Affiliation(s)
- Adam D Farmer
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Mary University of London, London, UK.,Mech-Sense, Department of Gastroenterology, Aalborg University Hospital, Aalborg, Denmark.,Institute of Applied Clinical Sciences, University of Keele, Keele, UK.,Department of Gastroenterology, University Hospitals of North Midlands NHS Trust, Stoke on Trent, UK
| | - Ahmed Albusoda
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Mary University of London, London, UK
| | - Gehanjali Amarasinghe
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Mary University of London, London, UK
| | - James K Ruffle
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Mary University of London, London, UK.,Department of Radiology, University College London Hospital NHS Foundation Trust, London, UK
| | - Heather E Fitzke
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Mary University of London, London, UK
| | - Ruqaya Idrees
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Mary University of London, London, UK
| | - Ron Fried
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Mary University of London, London, UK
| | - Christina Brock
- Mech-Sense, Department of Gastroenterology, Aalborg University Hospital, Aalborg, Denmark
| | - Qasim Aziz
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Mary University of London, London, UK
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9
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Fass R, Shibli F, Tawil J. Diagnosis and Management of Functional Chest Pain in the Rome IV Era. J Neurogastroenterol Motil 2019; 25:487-498. [PMID: 31587539 PMCID: PMC6786446 DOI: 10.5056/jnm19146] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 08/07/2019] [Indexed: 12/13/2022] Open
Abstract
Functional chest pain accounts for about a third of the patients with noncardiac chest pain. It is a very common functional esophageal disorder that remains even today a management challenge to the practicing physician. Based on the definition offered by the Rome IV criteria, diagnosis of functional chest pain requires a negative workup of noncardiac chest pain patients that includes, proton pump inhibitor test or empirical proton pump inhibitor trial, endoscopy with esophageal mucosal biopsies, reflux testing, and esophageal manometry. The mainstay of treatment are neuromodulators that are primarily composed of anti-depressants. Alternative medicine and psychological interventions may be provided alone or in combination with other therapeutic modalities.
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Affiliation(s)
- Ronnie Fass
- The Esophageal and Swallowing Center, MetroHealth Medical Center and Case Western Reserve University, Cleveland, OH, USA
| | - Fahmi Shibli
- The Esophageal and Swallowing Center, MetroHealth Medical Center and Case Western Reserve University, Cleveland, OH, USA
| | - Jose Tawil
- Departamento de Trastornos Funcionales Digestivos, Gedyt-Gastroenterología Diagnóstica y Terapéutica, BuenosAires, Argentina
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10
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Oesophageal dysphagia: a stepwise approach to diagnosis and management. Lancet Gastroenterol Hepatol 2018; 2:604-609. [PMID: 28691686 DOI: 10.1016/s2468-1253(17)30001-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/20/2016] [Accepted: 01/03/2017] [Indexed: 12/19/2022]
Abstract
Dysphagia is a common symptom in the general population. Incidence varies depending on the specific definition used. A good medical history is vital for distinguishing true oesophageal dysphagia from oropharyngeal dysphagia or other causes. Oesophageal dysphagia is a so-called red flag alarm symptom requiring oesophagogastroduodenoscopy. However, even after investigations including oesophagogastroduodenoscopy (with biopsy), barium swallow, and oesophageal manometry, no obstructive cause may be found. This Review suggests an algorithm of history-taking and investigation to allow the causes of non-obstructive dysphagia to be identified, including functional dysphagia. The Review then discusses management strategies and outcomes for functional dysphagia.
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11
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Mermelstein J, Chait Mermelstein A, Chait MM. Proton pump inhibitor-refractory gastroesophageal reflux disease: challenges and solutions. Clin Exp Gastroenterol 2018; 11:119-134. [PMID: 29606884 PMCID: PMC5868737 DOI: 10.2147/ceg.s121056] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A significant percentage of patients with gastroesophageal reflux disease (GERD) will not respond to proton pump inhibitor (PPI) therapy. The causes of PPI-refractory GERD are numerous and diverse, and include adherence, persistent acid, functional disorders, nonacid reflux, and PPI bioavailability. The evaluation should start with a symptom assessment and may progress to imaging, endoscopy, and monitoring of esophageal pH, impedance, and bilirubin. There are a variety of pharmacologic and procedural interventions that should be selected based on the underlying mechanism of PPI failure. Pharmacologic treatments can include antacids, prokinetics, alginates, bile acid binders, reflux inhibitors, and antidepressants. Procedural options include laparoscopic fundoplication and LINX as well as endoscopic procedures, such as transoral incisionless fundoplication and Stretta. Several alternative and complementary treatments of possible benefit also exist.
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Affiliation(s)
- Joseph Mermelstein
- Gasteroenterology and Nutrition Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alanna Chait Mermelstein
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Maxwell M Chait
- Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
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12
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Abstract
Functional dyspepsia is one of the most prevalent functional gastrointestinal disorders. Functional dyspepsia comprises three subtypes with presumed different pathophysiology and aetiology: postprandial distress syndrome (PDS), epigastric pain syndrome (EPS) and a subtype with overlapping PDS and EPS features. Functional dyspepsia symptoms can be caused by disturbed gastric motility (for example, inadequate fundic accommodation or delayed gastric emptying), gastric sensation (for example, sensations associated with hypersensitivity to gas and bloating) or gastric and duodenal inflammation. A genetic predisposition is probable but less evident than in other functional gastrointestinal disorders, such as irritable bowel syndrome (IBS). Psychiatric comorbidity and psychopathological state and trait characteristics could also play a part, although they are not specific to functional dyspepsia and are less pronounced than in IBS. Possible differential diagnoses include Helicobacter pylori infection and peptic ulceration. Pharmacological therapy is mostly based on the subtype of functional dyspepsia, such as prokinetic and fundus-relaxing drugs for PDS and acid-suppressive drugs for EPS, whereas centrally active neuromodulators and herbal drugs play a minor part. Psychotherapy is effective only in a small subset of patients, whereas quality of life can be severely affected in nearly all patients. Future therapies might include novel compounds that attempt to treat the underlying gastric and duodenal inflammation.
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Cisternas D, Scheerens C, Omari T, Monrroy H, Hani A, Leguizamo A, Bilder C, Ditaranto A, Ruiz de León A, Pérez de la Serna J, Valdovinos MA, Coello R, Abrahao L, Remes-Troche J, Meixueiro A, Zavala MA, Marin I, Serra J. Anxiety can significantly explain bolus perception in the context of hypotensive esophageal motility: Results of a large multicenter study in asymptomatic individuals. Neurogastroenterol Motil 2017; 29. [PMID: 28480513 DOI: 10.1111/nmo.13088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 03/14/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Previous studies have not been able to correlate manometry findings with bolus perception. The aim of this study was to evaluate correlation of different variables, including traditional manometric variables (at diagnostic and extreme thresholds), esophageal shortening, bolus transit, automated impedance manometry (AIM) metrics and mood with bolus passage perception in a large cohort of asymptomatic individuals. METHODS High resolution manometry (HRM) was performed in healthy individuals from nine centers. Perception was evaluated using a 5-point Likert scale. Anxiety was evaluated using Hospitalized Anxiety and Depression scale (HAD). Subgroup analysis was also performed classifying studies into normal, hypotensive, vigorous, and obstructive patterns. KEY RESULTS One hundred fifteen studies were analyzed (69 using HRM and 46 using high resolution impedance manometry (HRIM); 3.5% swallows in 9.6% of volunteers were perceived. There was no correlation of any of the traditional HRM variables, esophageal shortening, AIM metrics nor bolus transit with perception scores. There was no HRM variable showing difference in perception when comparing normal vs extreme values (percentile 1 or 99). Anxiety but not depression was correlated with perception. Among hypotensive pattern, anxiety was a strong predictor of variance in perception (R2 up to .70). CONCLUSION AND INFERENCES Bolus perception is less common than abnormal motility among healthy individuals. Neither esophageal motor function nor bolus dynamics evaluated with several techniques seems to explain differences in bolus perception. Different mechanisms seem to be relevant in different manometric patterns. Anxiety is a significant predictor of bolus perception in the context of hypotensive motility.
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Affiliation(s)
- D Cisternas
- Universidad del Desarrollo, Facultad de Medicina, Clínica Alemana de Santiago, Santiago, Chile
| | - C Scheerens
- Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - T Omari
- Human Physiology, Medical Science and Technology, School of Medicine, FlindersUniversity, Adelaide, SA, Australia
| | - H Monrroy
- Department of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - A Hani
- San Ignacio Hospital, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - A Leguizamo
- San Ignacio Hospital, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - C Bilder
- Neurogastroenterology, School of Medicine, Universitary Hospital FundacionFavaloro, Buenos Aires, Argentina
| | - A Ditaranto
- Neurogastroenterology, School of Medicine, Universitary Hospital FundacionFavaloro, Buenos Aires, Argentina
| | - A Ruiz de León
- Hospital Clínico San Carlos, Universidad Complutense, Madrid, Spain
| | | | - M A Valdovinos
- Motility Lab, Department of Gastroenterology, National Institute of Medical Sciences and Nutrition Salvador Zubirán, Mexico City, Mexico
| | | | - L Abrahao
- University Hospital Clementino Fraga Filho, Rio de Janeiro, Brazil
| | - J Remes-Troche
- Digestive Physiology and Motility Lab, Medical BiologicalResearchInstitute, Veracruzana University, Veracruz, Mexico
| | - A Meixueiro
- Digestive Physiology and Motility Lab, Medical BiologicalResearchInstitute, Veracruzana University, Veracruz, Mexico
| | - M A Zavala
- Digestive Physiology and Motility Lab, Medical BiologicalResearchInstitute, Veracruzana University, Veracruz, Mexico
| | - I Marin
- Motility and Functional Gut Disorders Unit, Department of Medicine, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Autonomous University of Barcelona, University Hospital Germans TriasiPujol, Badalona, Spain
| | - J Serra
- Motility and Functional Gut Disorders Unit, Department of Medicine, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Autonomous University of Barcelona, University Hospital Germans TriasiPujol, Badalona, Spain
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14
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Abstract
The Rome IV diagnostic criteria delineates 5 functional esophageal disorders which include functional chest pain, functional heartburn, reflux hypersensitivity, globus, and functional dysphagia. These are a heterogenous group of disorders which, despite having characteristic symptom profiles attributable to esophageal pathology, fail to demonstrate any structural, motility or inflammatory abnormalities on standard clinical testing. These disorders are associated with a marked reduction in patient quality of life, not least considerable healthcare resources. Furthermore, the pathophysiology of these disorders is incompletely understood. In this narrative review we provide the reader with an introductory primer to the structure and function of esophageal perception, including nociception that forms the basis of the putative mechanisms that may give rise to symptoms in functional esophageal disorders. We also discuss the provocative techniques and outcome measures by which esophageal hypersensitivity can be established.
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Zhou XY, Chu CL. Importance of diagnosis and management of psychological disorders in patients with refractory gastroesophageal reflux disease. Shijie Huaren Xiaohua Zazhi 2017; 25:1-6. [DOI: 10.11569/wcjd.v25.i1.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Psychological factors are closely related to the pathogenesis of gastroesophageal reflux disease, irritable bowel syndrome, functional dyspepsia, and other gastrointestinal diseases. It has been widely accepted that psychological factors play a very important role in refractory gastroesophageal reflux disease (RGERD). This article reviews the role of psychological factors in the epidemiology, pathogenesis, assessment, and management of RGERD.
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Taft TH, Riehl M, Sodikoff JB, Kahrilas PJ, Keefer L, Doerfler B, Pandolfino JE. Development and validation of the brief esophageal dysphagia questionnaire. Neurogastroenterol Motil 2016; 28:1854-1860. [PMID: 27380834 PMCID: PMC5340311 DOI: 10.1111/nmo.12889] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 05/27/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Esophageal dysphagia is common in gastroenterology practice and has multiple etiologies. A complication for some patients with dysphagia is food impaction. A valid and reliable questionnaire to rapidly evaluate esophageal dysphagia and impaction symptoms can aid the gastroenterologist in gathering information to inform treatment approach and further evaluation, including endoscopy. METHODS 1638 patients participated over two study phases. 744 participants completed the Brief Esophageal Dysphagia Questionnaire (BEDQ) for phase 1; 869 completed the BEDQ, Visceral Sensitivity Index, Gastroesophageal Reflux Disease Questionnaire, and Hospital Anxiety and Depression Scale for phase 2. Demographic and clinical data were obtained via the electronic medical record. The BEDQ was evaluated for internal consistency, split-half reliability, ceiling and floor effects, and construct validity. KEY RESULTS The BEDQ demonstrated excellent internal consistency, reliability, and construct validity. The symptom frequency and severity scales scored above the standard acceptable cutoffs for reliability while the impaction subscale yielded poor internal consistency and split-half reliability; thus the impaction items were deemed qualifiers only and removed from the total score. No significant ceiling or floor effects were found with the exception of 1 item, and inter-item correlations fell within accepted ranges. Construct validity was supported by moderate yet significant correlations with other measures. The predictive ability of the BEDQ was small but significant. CONCLUSIONS & INFERENCES The BEDQ represents a rapid, reliable, and valid assessment tool for esophageal dysphagia with food impaction for clinical practice that differentiates between patients with major motor dysfunction and mechanical obstruction.
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Affiliation(s)
- Tiffany H. Taft
- Northwestern University Feinberg School of Medicine, Division of Gastroenterology & Hepatology, Chicago Illinois USA
| | - Megan Riehl
- University of Michigan, Division of Gastroenterology
| | - Jamie B. Sodikoff
- Northwestern University Feinberg School of Medicine, Division of Gastroenterology & Hepatology, Chicago Illinois USA
| | - Peter J. Kahrilas
- Northwestern University Feinberg School of Medicine, Division of Gastroenterology & Hepatology, Chicago Illinois USA
| | - Laurie Keefer
- Icahn School of Medicine, Mount Sinai Medical Center, Susan and Leonard Feinstein IBD Center
| | - Bethany Doerfler
- Northwestern University Feinberg School of Medicine, Division of Gastroenterology & Hepatology, Chicago Illinois USA
| | - John E. Pandolfino
- Northwestern University Feinberg School of Medicine, Division of Gastroenterology & Hepatology, Chicago Illinois USA
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17
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Martel M, Olesen A, Jørgensen D, Nielsen L, Brock C, Edwards R, Drewes A. Does catastrophic thinking enhance oesophageal pain sensitivity? An experimental investigation. Eur J Pain 2016; 20:1214-22. [DOI: 10.1002/ejp.845] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2015] [Indexed: 12/12/2022]
Affiliation(s)
- M.O. Martel
- Department of Anesthesiology & Pain Medicine; Brigham & Women's Hospital; Harvard Medical School; Boston USA
| | - A.E. Olesen
- Mech-Sense; Department of Gastroenterology & Hepatology; Aalborg University Hospital; Denmark
- Department of Drug Design and Pharmacology; Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - D. Jørgensen
- Mech-Sense; Department of Gastroenterology & Hepatology; Aalborg University Hospital; Denmark
- Center for Sensory-Motor Interaction (SMI); Department of Health Science and Technology; Aalborg University; Denmark
| | - L.M. Nielsen
- Mech-Sense; Department of Gastroenterology & Hepatology; Aalborg University Hospital; Denmark
- Department of Drug Design and Pharmacology; Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - C. Brock
- Mech-Sense; Department of Gastroenterology & Hepatology; Aalborg University Hospital; Denmark
- Department of Drug Design and Pharmacology; Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - R.R. Edwards
- Department of Anesthesiology & Pain Medicine; Brigham & Women's Hospital; Harvard Medical School; Boston USA
| | - A.M. Drewes
- Mech-Sense; Department of Gastroenterology & Hepatology; Aalborg University Hospital; Denmark
- Department of Clinical Medicine; Aalborg University; Denmark
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18
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Abstract
OBJECTIVES Interoceptive fear learning and generalization have been hypothesized to play a key role in unexplained abdominal and esophageal pain in patients with functional gastrointestinal disorders. However, there is no experimental evidence demonstrating that fear learning and generalization to visceral sensations can be established in humans and alter visceral perception. METHODS In a novel fear learning-generalization paradigm, an innocuous esophageal balloon distension served as conditioned stimulus (CS), and distensions at three different pressure levels around the pain detection threshold were used as generalization stimuli. During fear learning, the CS was paired with a painful electrical stimulus (unconditioned stimulus) in the conditioning group (n = 30), whereas in the control group (n = 30), the unconditioned stimulus was delivered alone. Before and after fear learning, visceral perception thresholds for first sensation, discomfort, and pain and visceral discrimination sensitivity were assessed. RESULTS Fear learning was established in the conditioning group only (potentiated eye-blink startle to the CS (t(464.06) = 3.17, p = .002), and fear generalization to other stimulus intensities was observed (t(469.12) = 2.97, p = .003; t(464.29) = 4.17, p < .001). The thresholds for first sensation habituated in the control group, whereas it remained constant in the conditioning group (F(1,43) = 9.77, p = .003). CONCLUSIONS These data show that fear learning using visceral stimuli induces fear generalization and influences visceral perception. These findings support the idea that in functional gastrointestinal disorder, fear learning and generalization can foster gastrointestinal-specific anxiety and contribute to visceral hypersensitivity.
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Kessing BF, Bredenoord AJ, Saleh CMG, Smout AJPM. Effects of anxiety and depression in patients with gastroesophageal reflux disease. Clin Gastroenterol Hepatol 2015; 13:1089-95.e1. [PMID: 25496817 DOI: 10.1016/j.cgh.2014.11.034] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 11/09/2014] [Accepted: 11/10/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Increased levels of anxiety and depression have been associated with esophageal hyperalgesia and an increased risk of gastroesophageal reflux disease (GERD). We investigated the effects of anxiety and depression on GERD symptoms and the perception of reflux episodes in a well-characterized group of patients. METHODS We performed a prospective study of 225 consecutive patients who had symptoms of GERD evaluated. Patients underwent ambulatory 24-hour pH impedance monitoring, and levels of anxiety and depression were assessed using the Hospital Anxiety and Depression Scale. RESULTS GERD was diagnosed in 147 patients (78 patients had functional heartburn); 36 patients were hypersensitive to gastroesophageal reflux. Among patients with GERD, increased levels of anxiety were associated with more severe retrosternal pain and retrosternal burning. Furthermore, increased levels of anxiety and depression each were associated with lower scores of the mental component of quality of life questionnaire. Levels of anxiety or depression were not associated with the number of reflux symptoms reported during 24-hour pH impedance monitoring or with the number of symptoms associated with a reflux event. Among GERD patients with hypersensitivity to reflux, levels of anxiety and depression and decreases in quality of life were similar to those of other patients with GERD. Patients with functional heartburn had higher levels of anxiety than patients with GERD. CONCLUSIONS In patients with GERD, increased levels of anxiety are associated with increased severity of retrosternal pain and heartburn and reduced quality of life. Patients with GERD with hypersensitivity to gastroesophageal reflux have similar levels of anxiety and similar quality-of-life scores as other patients with GERD.
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Affiliation(s)
- Boudewijn F Kessing
- Department of Gastroenterology and Hepatology, Academic Medical Center Amsterdam, Amsterdam, The Netherlands.
| | - Albert J Bredenoord
- Department of Gastroenterology and Hepatology, Academic Medical Center Amsterdam, Amsterdam, The Netherlands
| | - Caroline M G Saleh
- Department of Gastroenterology and Hepatology, Academic Medical Center Amsterdam, Amsterdam, The Netherlands
| | - André J P M Smout
- Department of Gastroenterology and Hepatology, Academic Medical Center Amsterdam, Amsterdam, The Netherlands
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20
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Bulmer DC, Botha CA, Wheeldon A, Grey K, Mein CA, Lee K, Knowles CH, Winchester WJ, Aziz Q. Evidence of a role for GTP cyclohydrolase-1 in visceral pain. Neurogastroenterol Motil 2015; 27:656-62. [PMID: 25783971 DOI: 10.1111/nmo.12538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 02/09/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND The enzyme guanosine triphosphate-cyclohydrolase-1 (GCH-1) is a rate limiting step in the de novo synthesis of tetrahydrobiopterin (BH4) a co-factor in monoamine synthesis and nitric oxide production. GCH-1 is strongly implicated in chronic pain based on data generated using the selective GCH-1 inhibitor 2,4-diamino-6-hydroxypyrimidine (DAHP), and studies which have identified a pain protective GCH-1 haplotype associated with lower BH4 production and reduced pain. METHODS To investigate the role for GCH-1 in visceral pain we examined the effects of DAHP on pain behaviors elicited by colorectal injection of mustard oil in rats, and the pain protective GCH-1 haplotype in healthy volunteers characterized by esophageal pain sensitivity before and after acid injury, and assessed using depression and anxiety questionnaires. KEY RESULTS In rodents pretreatment with DAHP produced a substantial dose related inhibition of pain behaviors from 10 to 180 mg/kg i.p. (p < 0.01 to 0.001). In healthy volunteers, no association was seen between the pain protective GCH-1 haplotype and the development of hypersensitivity following injury. However, a substantial increase in baseline pain thresholds was seen between first and second visits (26.6 ± 6.2 mA) in subjects who sensitized to esophageal injury and possessed the pain protective GCH-1 haplotype compared with all other groups (p < 0.05). Furthermore the same subjects who sensitized to acid and possessed the haplotype, also had significantly lower depression scores (p < 0.05). CONCLUSIONS & INFERENCES The data generated indicate that GCH-1 plays a role in visceral pain processing that requires more detailed investigation.
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Affiliation(s)
- D C Bulmer
- Wingate Institute of Neurogastroenterology, Blizard Institute, Bart's and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK; National Centre for Bowel Research and Surgical Innovation, Blizard Institute, Bart's and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK; GlaxoSmithKline Research & Development, Medicines Research Centre, Hertfordshire, UK
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Aro P, Talley NJ, Johansson SE, Agréus L, Ronkainen J. Anxiety Is Linked to New-Onset Dyspepsia in the Swedish Population: A 10-Year Follow-up Study. Gastroenterology 2015; 148:928-37. [PMID: 25644097 DOI: 10.1053/j.gastro.2015.01.039] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 01/21/2015] [Accepted: 01/25/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS Functional dyspepsia (FD) is associated with anxiety but it is not clear if one causes the other. We investigated whether anxiety and depression precede the onset of FD (based on the modified Rome III criteria) and gastroesophageal reflux symptoms (GERS) in a population-based follow-up study. METHODS Participants from the Kalixanda study (n = 3000), randomly selected from the national population register of Sweden, were given the validated Abdominal Symptom Questionnaire 1998-2001; 1000 of these participants then were selected randomly to undergo esophagogastroduodenoscopy and were given the Abdominal Symptom Questionnaire along with the Hospital Anxiety and Depression Scale questionnaire. All eligible subjects who underwent endoscopy (n = 887) were invited to participate in a follow-up study in June-August 2010 and were given the same questionnaires. Data were analyzed by logistic regression. RESULTS Of the 703 subjects who completed the follow-up questionnaires (79.3%); 110 were found to have FD at baseline (15.6%) and 93 at the follow-up examination (13.3%); 48 of these were new cases of FD. GERS without organic disease was reported by 273 individuals (38.8%) at baseline and by 280 at follow-up examination (39.8%); 93 cases were new. Major anxiety was associated with FD at the follow-up evaluation (odds ratio [OR], 6.30; 99% confidence interval [CI], 1.64-24.16). Anxiety was associated with postprandial distress syndrome at baseline (OR, 4.83; 99% CI, 1.24-18.76) and at the follow-up examination (OR, 8.12; 99% CI, 2.13-30.85), but not with epigastric pain syndrome. Anxiety at baseline was associated with new-onset FD at the follow-up examination (OR, 7.61; 99% CI, 1.21-47.73), but not with GERS. CONCLUSIONS In a study of the Swedish population, anxiety at baseline, but not depression, increased the risk for development of FD by 7.6-fold in the next 10 years. Anxiety did not affect risk for GERS.
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Affiliation(s)
- Pertti Aro
- Centre for Family Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Nicholas J Talley
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
| | | | - Lars Agréus
- Centre for Family Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jukka Ronkainen
- Centre for Family Medicine, Karolinska Institutet, Stockholm, Sweden; Institute of Health Sciences, Medical Faculty, University of Oulu, Finland; Primary Health Care Centre, Tornio, Finland
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22
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Associative fear learning and perceptual discrimination: A perceptual pathway in the development of chronic pain. Neurosci Biobehav Rev 2015; 51:118-25. [DOI: 10.1016/j.neubiorev.2015.01.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 12/11/2014] [Accepted: 01/09/2015] [Indexed: 12/30/2022]
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Botha C, Farmer AD, Nilsson M, Brock C, Gavrila AD, Drewes AM, Knowles CH, Aziz Q. Preliminary report: modulation of parasympathetic nervous system tone influences oesophageal pain hypersensitivity. Gut 2015; 64:611-7. [PMID: 24870622 DOI: 10.1136/gutjnl-2013-306698] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Autonomic nervous system dysfunction has been implicated in visceral hypersensitivity. However, the specific contribution of the parasympathetic nervous system (PNS) is unclear. We aimed to determine whether physiological and pharmacological manipulation of parasympathetic tone influences the development of hypersensitivity in a validated model of acid-induced oesophageal pain. DESIGN Prior to, and following, a 30-min distal oesophageal infusion of 0.15 M hydrochloric acid, pain thresholds to electrical stimulation were determined in the proximal non-acid exposed oesophagus in healthy subjects. Validated sympathetic (skin conductance response) and parasympathetic (cardiac vagal tone) parameters were measured at baseline and continuously thereafter. In study 1, 55 subjects were randomised in a pragmatic blinded crossover design to receive deep breathing or un-paced breathing during acid infusion. In study 2, 32 subjects were randomised in a blinded, crossover design to receive intravenous atropine or placebo (saline) with deep breathing during acid infusion. RESULTS Study 1: Deep breathing increased cardiac vagal tone (2.1±2.3 vs -0.3±2.3, p=0.0006) with concomitant withdrawal of skin conductance response (-0.6±4.9 vs 3±4.8, p=0.03) in comparison with un-paced breathing. Deep breathing prevented the development of acid-induced oesophageal hypersensitivity in comparison with sham breathing (p=0.0001). Study 2: Atropine, in comparison with placebo, blocked the attenuating effect of deep breathing on the development of acid-induced oesophageal hypersensitivity (p=0.046). CONCLUSIONS The development of oesophageal hyperalgesia is prevented by physiologically increasing parasympathetic tone. This effect is pharmacologically blocked with atropine, providing evidence that the PNS influences the development of oesophageal pain hypersensitivity.
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Affiliation(s)
- Claude Botha
- Centre for Digestive Diseases, Blizard Institute of Cell & Molecular Science, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Adam D Farmer
- Centre for Digestive Diseases, Blizard Institute of Cell & Molecular Science, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Matias Nilsson
- Mech-Sense, Department of Gastroenterology, Aalborg University Hospital, Aalborg, Denmark
| | - Christina Brock
- Mech-Sense, Department of Gastroenterology, Aalborg University Hospital, Aalborg, Denmark
| | - Ana D Gavrila
- Centre for Digestive Diseases, Blizard Institute of Cell & Molecular Science, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Asbjørn Mohr Drewes
- Mech-Sense, Department of Gastroenterology, Aalborg University Hospital, Aalborg, Denmark
| | - Charles H Knowles
- Centre for Digestive Diseases, Blizard Institute of Cell & Molecular Science, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Qasim Aziz
- Centre for Digestive Diseases, Blizard Institute of Cell & Molecular Science, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Queen Mary University of London, London, UK
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Pescatori M, Podzemny V, Pescatori LC, Dore MP, Bassotti G. The PNEI holistic approach in coloproctology. Tech Coloproctol 2015; 19:269-73. [PMID: 25820513 DOI: 10.1007/s10151-015-1277-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 01/27/2015] [Indexed: 12/17/2022]
Abstract
The psycho-neuroendocrine-immune approach relies on the concept of considering diseases from a holistic point of view: the various components (psyche, nervous system, endocrine system, and immune system) control the diseased organ/apparatus and in turn are influenced by a feedback mechanism. In this article, we will consider the psycho-neuroendocrine-immune approach to coloproctological disorders, by providing clinical cases and discussing them in light of this approach.
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Affiliation(s)
- M Pescatori
- Coloproctology Unit, Parioli Clinic, Rome, Italy,
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25
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Farmer AD, Coen SJ, Kano M, Worthen SF, Rossiter HE, Navqi H, Scott SM, Furlong PL, Aziz Q. Psychological traits influence autonomic nervous system recovery following esophageal intubation in health and functional chest pain. Neurogastroenterol Motil 2013; 25:950-e772. [PMID: 24112145 DOI: 10.1111/nmo.12231] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 08/13/2013] [Indexed: 12/24/2022]
Abstract
BACKGROUND Esophageal intubation is a widely utilized technique for a diverse array of physiological studies, activating a complex physiological response mediated, in part, by the autonomic nervous system (ANS). In order to determine the optimal time period after intubation when physiological observations should be recorded, it is important to know the duration of, and factors that influence, this ANS response, in both health and disease. METHODS Fifty healthy subjects (27 males, median age 31.9 years, range 20-53 years) and 20 patients with Rome III defined functional chest pain (nine male, median age of 38.7 years, range 28-59 years) had personality traits and anxiety measured. Subjects had heart rate (HR), blood pressure (BP), sympathetic (cardiac sympathetic index, CSI), and parasympathetic nervous system (cardiac vagal tone, CVT) parameters measured at baseline and in response to per nasum intubation with an esophageal catheter. CSI/CVT recovery was measured following esophageal intubation. KEY RESULTS In all subjects, esophageal intubation caused an elevation in HR, BP, CSI, and skin conductance response (SCR; all p < 0.0001) but concomitant CVT and cardiac sensitivity to the baroreflex (CSB) withdrawal (all p < 0.04). Multiple linear regression analysis demonstrated that longer CVT recovery times were independently associated with higher neuroticism (p < 0.001). Patients had prolonged CSI and CVT recovery times in comparison to healthy subjects (112.5 s vs 46.5 s, p = 0.0001 and 549 s vs 223.5 s, p = 0.0001, respectively). CONCLUSIONS & INFERENCES Esophageal intubation activates a flight/flight ANS response. Future studies should allow for at least 10 min of recovery time. Consideration should be given to psychological traits and disease status as these can influence recovery.
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Affiliation(s)
- A D Farmer
- Centre for Digestive Diseases, Blizard Institute of Cell & Molecular Science, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Queen Mary University of London, London, UK
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Hoff DAL, Krarup AL, Lelic D, Olesen SS, Dimcevski G, Hansen TM, Brock C, Hatlebakk JG, Drewes AM. Central response to painful electrical esophageal stimulation in well-defined patients suffering from functional chest pain. Neurogastroenterol Motil 2013; 25:e718-27. [PMID: 23965033 DOI: 10.1111/nmo.12196] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 07/03/2013] [Indexed: 02/08/2023]
Abstract
BACKGROUND Functional chest pain (FCP) of presumed esophageal origin is considered a common cause for chest pain in which central nervous system hyperexcitability is thought to play an important role. We aimed to compare cerebral responses with painful esophageal stimuli between FCP patients and healthy subjects (HS). METHODS Thirteen patients with FCP (seven females, mean age 50.4 ± 7.5 years) and 15 HS (eight females, mean age 49.1 ± 12.9 years) were enrolled. Inclusion criteria consisted of typical chest pain, normal coronary angiogram, and normal upper gastrointestinal evaluation. Electrical stimulations evoking the pain threshold were applied in the distal esophagus, while cortical evoked potentials were recorded from the scalp. Pain scores, resting electroencephalogram (EEG), evoked potential characteristics and brain electrical sources to pain stimulation were compared between groups. KEY RESULTS No differences were seen between patients and HS regarding (i) pain thresholds (patients: 20.1 ± 7.4 mA vs HS: 22.4 ± 8.3 mA, all P > 0.05), (ii) resting-EEG (P > 0.05), (iii) evoked brain potential latencies (N2: patients 181.7 ± 25.7 mS vs HS 182.2 ± 25.8 mS, all P > 0.05) and amplitudes (N2P2: patients 8.2 ± 7.2 μV vs HS: 10.1 ± 3.4 μV, all P > 0.05), (iv) topography (P > 0.05), and (v) brain source location (P > 0.05). CONCLUSIONS & INFERENCES No differences in activation of brain areas to painful esophageal stimulation were seen in this group of well characterized patients with FCP compared with sex- and age-matched HS. The mechanism of pain in FCP and whether it originates in the esophagus remains unsolved.
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Affiliation(s)
- D A L Hoff
- Department of Medicine, Division of Gastroenterology and Hepatology, Aalesund Hospital, Aalesund, Norway
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Brock C, Graversen C, Frøkjaer JB, Søfteland E, Valeriani M, Drewes AM. Peripheral and central nervous contribution to gastrointestinal symptoms in diabetic patients with autonomic neuropathy. Eur J Pain 2012; 17:820-31. [PMID: 23239083 DOI: 10.1002/j.1532-2149.2012.00254.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2012] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Long-term diabetes mellitus (DM) has been associated with neuronal changes in the enteric, peripheral and/or central nervous system. Moreover, abnormal visceral sensation and gastrointestinal (GI) symptoms are seen in up to 75% of patients. To explore the role of diabetic autonomic neuropathy (DAN) in patients with long-standing DM, we investigated psychophysical responses and neuronal activity recorded as evoked brain potentials and dipolar source modelling. METHODS Fifteen healthy volunteers and 14 type-1 DM patients with DAN were assessed with a symptom score index characterizing upper GI abnormalities. Multichannel (62) electroencephalography was recorded during painful electrical stimulation of the lower oesophagus. Brain activity to painful stimulations was modelled using Brain Electrical Source Analysis (besa). RESULTS Diabetic patients had higher stimulus intensities to evoke painful sensation (p ≤ 0.001), longer latencies of N2 and P2 components (both p ≤ 0.001), and lower amplitudes of P1-N2 and N2-P2 complexes (p ≤ 0.001; p = 0.02). Inverse modelling of brain sources showed deeper bilateral insular dipolar source localization (p = 0.002). Symptom score index was negatively correlated with the depth of insular activity (p = 0.004) and positively correlated with insular dipole strength (p = 0.03). CONCLUSION DM patients show peripheral and central neuroplastic changes. Moreover, the role of abnormal insular processing may explain the appearance and persistence of GI symptoms related to DAN. This enhanced understanding of DAN may have future clinical and therapeutical implications.
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Affiliation(s)
- C Brock
- Mech-Sense, Department of Gastroenterology & Hepatology, Aalborg Hospital, Aarhus University Hospital, Aalborg, Denmark.
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Altan E, Blondeau K, Pauwels A, Farré R, Tack J. Evolving pharmacological approaches in gastroesophageal reflux disease. Expert Opin Emerg Drugs 2012; 17:347-59. [PMID: 22834684 DOI: 10.1517/14728214.2012.702753] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Proton pump inhibitors (PPIs) have considerably improved quality of life in patients with gastroesophageal reflux disease (GERD). However, many patients remain symptomatic despite standard PPI therapy. AREAS COVERED This review focuses on evolving therapeutic strategies related to the pathophysiological processes of GERD and insufficient response to PPIs. Several clinical trials evaluated new PPI formulations and newer types of acid-suppressive drugs. These studies have evaluated traditional end points in GERD, but have not shown clinical superiority to current PPIs. Novel therapeutic strategies targeting underlying mechanisms of GERD, such as transient lower esophageal sphincter relaxations (TLESRs) and esophageal hypersensitivity, are being developed for add-on therapy to PPIs. Prokinetic drugs may also have some potential in the add-on treatment of GERD with insufficient response to PPIs. Add-on studies are hampered by insufficient information on optimal patient selection and lack of established end points. EXPERT OPINION Newer drugs for symptomatic control in GERD have largely focused on improved acid suppression, without evidence of clinical superiority. Drugs targeting esophageal motility and sensitivity to be used as add-onc therapy in PPI insufficient responders have not reached Phase III trials to date, due to difficulties with patient selection, tolerability and end points.
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Affiliation(s)
- Ege Altan
- University of Leuven, Translational Research Center for Gastrointestinal Disorders, Herestraat 49, B-3000, Leuven, Belgium
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Rippel SW, Acra S, Correa H, Vaezi M, Di Lorenzo C, Walker LS. Pediatric patients with dyspepsia have chronic symptoms, anxiety, and lower quality of life as adolescents and adults. Gastroenterology 2012; 142:754-61. [PMID: 22226783 PMCID: PMC3321087 DOI: 10.1053/j.gastro.2011.12.043] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Revised: 11/23/2011] [Accepted: 12/20/2011] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Little is known about long-term health outcomes of children with dyspeptic symptoms. We studied the natural history of pediatric patients with dyspeptic symptoms, with and without histologic reflux, compared with healthy controls. METHODS We performed a prospective study of consecutive new patients, ages 8-16 years, who underwent evaluation for dyspepsia, including upper endoscopy. Patients were assigned to groups with histologic evidence of reflux esophagitis (n = 50), or normal histology results (n = 53). Healthy children were followed up as controls (n = 143). Patients and controls were evaluated 5-15 years later. They provided self-reports on severity of dyspeptic symptoms, use of acid suppression, quality of life, anxiety, and depression. RESULTS When the study began, the groups with histologic evidence of esophagitis and normal histologies did not differ in severity of dyspeptic symptoms, functional disability, or depression. After a mean 7.6-year follow-up period, each group had significantly lower quality-of-life scores and more severe dyspeptic symptoms and functional disability than controls, but did not differ significantly from each other; both groups were significantly more likely than controls to meet criteria for an anxiety disorder. At time of follow-up evaluation, use of acid-suppression medication was significantly greater in the group with histologic evidence for esophagitis, compared with patients who had normal histology findings when the study began. CONCLUSIONS Among pediatric patients with dyspepsia evaluated by endoscopy and biopsy, those with histologic evidence for esophagitis or normal histology findings are at increased risk for chronic dyspeptic symptoms, anxiety disorder, and reduced quality of life in adolescence and young adulthood.
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Affiliation(s)
- Sara W Rippel
- Department of Pediatrics, Division of Gastroenterology, Hepatology & Nutrition, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Sari Acra
- Department of Pediatrics, Division of Gastroenterology, Hepatology & Nutrition, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Hernán Correa
- Department of Pathology, Microbiology, and Immunology, Division of Pediatric Pathology, Vanderbilt University, Nashville, TN, USA
| | - Michael Vaezi
- Department of Medicine, Division of Gastroenterology, Hepatology & Nutrition, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Carlo Di Lorenzo
- Department of Pediatrics, Division of Gastroenterology, Hepatology & Nutrition, Nationwide Children’s Hospital, Columbus, Ohio, USA
| | - Lynn S. Walker
- Department of Pediatrics, Division of Adolescent and Young Adult Heath, Vanderbilt University School of Medicine, Nashville, TN, USA
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Meng QW, Xu SC. Advances in research of esophageal visceral hypersensitivity. Shijie Huaren Xiaohua Zazhi 2012; 20:568-573. [DOI: 10.11569/wcjd.v20.i7.568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Gastroesophageal reflux disease (GERD) is a common disorder that is often associated with unpleasant symptoms requiring utilization of health care resource. Both animal and clinical studies suggest that a variety of receptors on afferent nerves sensitized upon exposure to acid increase afferent input to the spinal cord dorsal horn neurons and lead to a reduction in threshold of these neurons together with an increase in their receptive field. This increased sensitivity of primary afferent nerves is described as peripheral sensitization, whereas the consequent increase in sensitivity of the spinal dorsal horn neurons is described as central sensitization. Once these mechanisms have been established, they can cause a long-term increase in sensitivity of tissues to previously innocuous stimuli. Furthermore, psychological stress and mechanical stimulation both have been shown to increase DIS and may therefore facilitate peripheral sensitization. Currently peripheral and central sensitizations are considered to be important mechanisms of esophageal pain hypersensitivity and occurrence of symptoms to even physiological amounts of acid. In these patients treatments aimed at reducing neuronal sensitivity may be effective. This article mainly focuses on the recent advances in research of esophageal visceral hypersensitivity.
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Abstract
PURPOSE OF REVIEW Visceral pain represents a major clinical problem, yet far less is known about its mechanisms compared with somatic pains, for example, from cutaneous and muscular structures. RECENT FINDINGS In this review, we describe the neuroanatomical bases of visceral pain signalling in the peripheral and central nervous system, comparing to somatic pains and also the channels and receptors involved in these events. We include an overview of potential new targets in the context of mechanisms of visceral pain and hypersensitivity. SUMMARY This review should inform on the recognition of what occurs in patients with visceral pain, why comorbidities are common and how analgesic treatments work.
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Affiliation(s)
- Shafaq Sikandar
- Department of Neuroscience, Physiology and Pharmacology University College London, London UK.
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Chua YC, Ng KS, Sharma A, Jafari J, Surguy S, Yazaki E, Knowles CH, Aziz Q. Randomised clinical trial: pregabalin attenuates the development of acid-induced oesophageal hypersensitivity in healthy volunteers - a placebo-controlled study. Aliment Pharmacol Ther 2012; 35:319-26. [PMID: 22211824 DOI: 10.1111/j.1365-2036.2011.04955.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Acid infusion in humans induces primary and secondary oesophageal hypersensitivity. The effects of pregabalin, a centrally-acting modulator of voltage-sensitive calcium channels, on development of acid-induced oesophageal hypersensitivity remain unknown. AIM To study the effects of pregabalin on development of secondary oesophageal hypersensitivity in healthy humans. METHODS Placebo-controlled, double-blind, randomised, cross-over study of 15 healthy volunteers (six women, age 21-56 years). After oesophageal manometry, baseline pain thresholds (PTs) to proximal oesophageal electrical stimulation were determined using bipolar ring electrodes. A 30-min infusion of HCl was performed in the distal oesophagus followed by PT measurements at 30 and 90 min. This protocol was repeated after administration of pregabalin (dosing schedule: 75 mg twice daily for 3 days then 150 mg twice daily for 1 day and then 150 mg on the morning of study) or placebo. RESULTS T0 PTs were similar in patients after receiving placebo or pregabalin [mean (s.d.) 32.9 mA (20.5) vs. 34.1 (15.7), P = 0.42]. Pregabalin reduced development of acid-induced hypersensitivity in the proximal oesophagus at 30 min [mean change in PT (C.I.) placebo -6.2 mA (-11.3 to +1.3) vs. pregabalin +0.20 mA (-2.7 to +3.3)] and 90 min [placebo -3.7 mA (-10.0 to +2.0) vs. pregabalin +0.7 mA (-4.7 to 7.3)] overall P = 0.001. Pregabalin reduced median visual analogue scale score for acid-induced pain (1/10 vs. placebo 3/10, P = 0.027). CONCLUSIONS Pregabalin attenuates development of secondary hypersensitivity in the proximal oesophagus after distal oesophageal acidification; it may thus have a role in treatment of patients with proven oesophageal pain hypersensitivity.
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Affiliation(s)
- Y C Chua
- Wingate Institute, Centre for Digestive Diseases, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK
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