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Oblizajek NR, Gandhi S, Sharma M, Chakraborty S, Muthyala A, Prichard D, Feuerhak K, Bharucha AE. Anorectal pressures measured with high-resolution manometry in healthy people-Normal values and asymptomatic pelvic floor dysfunction. Neurogastroenterol Motil 2019; 31:e13597. [PMID: 30957382 PMCID: PMC6559859 DOI: 10.1111/nmo.13597] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 02/27/2019] [Accepted: 03/26/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND High-resolution manometry (HRM) is used to measure rectoanal pressures in defecatory disorders and fecal incontinence. This study sought to define normal values for rectoanal HRM, ascertain the effects of age and BMI on rectoanal pressures, and compare pressures in asymptomatic women with normal and prolonged balloon expulsion time (BET). METHODS High-resolution manometry pressures and BET were measured in 163 asymptomatic healthy participants. Women (96) and men (47) with normal BET were used to estimate normal values and the effects of age/BMI on pressures using a Medtronic 4.2-mm-diameter rectoanal catheter. KEY RESULTS Age is associated with lower resting pressure, higher rectal pressure during evacuation, and a higher rectoanal gradient during evacuation in women and men. In women, the BET is also inversely correlated with age while the BMI is correlated with a higher threshold volume for discomfort and a longer BET. The anal squeeze pressure increment, squeeze duration, and HPZ length are higher in men than women. The rectoanal gradient during evacuation is also lower (ie, more negative) in asymptomatic women with an abnormal than a normal BET. CONCLUSIONS & INFERENCES These findings provide an expanded database of normal values for anorectal HRM in men and women. Age and sex affect anal resting and squeeze pressures, respectively; rectal pressure during evacuation is also higher in older people. Less than 15% of asymptomatic people have BET >60 seconds, which is associated with manometry features of impaired evacuation.
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Affiliation(s)
| | - Sangeetha Gandhi
- Division of Gastroenterology and Hepatology, Division of Internal Medicine
| | - Mayank Sharma
- Division of Gastroenterology and Hepatology, Division of Internal Medicine
| | | | - Anjani Muthyala
- Division of Gastroenterology and Hepatology, Division of Internal Medicine
| | - David Prichard
- Division of Gastroenterology and Hepatology, Division of Internal Medicine
| | - Kelly Feuerhak
- Division of Gastroenterology and Hepatology, Division of Internal Medicine
| | - Adil E. Bharucha
- Division of Gastroenterology and Hepatology, Division of Internal Medicine
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Clinical and anorectal manometry profile of patients with functional constipation and constipation-predominant irritable bowel syndrome. Indian J Gastroenterol 2019; 38:211-219. [PMID: 31240564 DOI: 10.1007/s12664-019-00953-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 04/11/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND Functional constipation (FC) and constipation-predominant irritable bowel syndrome (IBS-C) have significant healthcare impact. Clinical and investigative data of patients with these disorders in Indian population is scarce. We aimed to compare the clinical and anorectal manometric profile of patients with FC and IBS-C. METHODS Consecutive patients with chronic constipation undergoing anorectal manometry (ARM) and balloon expulsion test (BET) were enrolled. Thirty healthy volunteers served as controls (HC). Functional defecatory disorder (FDD) was diagnosed according to ROME IV criteria if both ARM and BET were abnormal. RESULTS Of the 231 patients enrolled (median age 47 years, 87.8% males), FC and IBS-C were diagnosed in 132 (57.1%) and 99 (42.9%) patients, respectively. Significant clinical differences between FC and IBS-C patients included older age, lower stool frequency/week, higher frequency of straining, and greater frequency of incomplete evacuation (p < 0.001). ARM revealed abnormal defecatory pattern in 55.3% (n = 73) FC patients and 47.5% (n = 47) IBS-C patients. Of them, 54.7% (40/73) of FC patients had inadequate defecatory propulsion while 89.4% (42/47) of the IBS-C patients had dyssynergic defecation (p < 0.001). Abnormal BET was seen in 67.4% of FC patients and 43.4% of IBS-C patients. Thus, FDD was diagnosed in 55.3% and 46.5% of FC and IBS-C patients, respectively. Rectal hyposensitivity was present in 60.6% of FC patients compared with 2% of IBS-C patients (p < 0.001). CONCLUSIONS There were significant differences in clinical and manometric profile of FC and IBS-C patients. Compared with IBS-C patients, FC patients were older, had higher prevalence of FDD, less often had dyssynergic defecation, and had higher prevalence of rectal hyposensitivity.
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Chakraborty S, Feuerhak K, Muthyala A, Harmsen WS, Bailey KR, Bharucha AE. Effects of Alfuzosin, an α 1-Adrenergic Antagonist, on Anal Pressures and Bowel Habits in Women With and Without Defecatory Disorders. Clin Gastroenterol Hepatol 2019; 17:1138-1147.e3. [PMID: 30130627 PMCID: PMC6379158 DOI: 10.1016/j.cgh.2018.08.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 08/08/2018] [Accepted: 08/09/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Some patients with defecatory disorders (DD) have high anal pressures that may impede rectal evacuation. Alpha-1 adrenoreceptors mediate as much as 50% of anal resting pressure in humans. We performed a randomized, placebo-controlled study of the effects of alfuzosin, an alpha1-adrenergic receptor antagonist, on anal pressures alone in healthy women and also on bowel symptoms in women with DD. METHODS In a double-blind study performed from March 2013 through March 2017, anal pressures were evaluated before and after 36 women with DD (constipation for at least 1 year) and 36 healthy women (controls) were randomly assigned (1:1) to groups given oral alfuzosin (2.5 mg immediate release) or placebo. Thereafter, patients were randomly assigned (1:1) to groups given oral alfuzosin (10 mg extended release) or placebo each day for 2 weeks. Participants kept daily diaries of bowel symptoms for 2 weeks before (baseline) and during administration of the test articles (treatment). Weekly questionnaires recorded the overall severity of constipation symptoms, bloating, abdominal pain, nausea, and vomiting; overall satisfaction with treatment of constipation was evaluated at weeks 2 and 4. The primary endpoint was the change in the number of spontaneous (SBMs) and complete SBMs (CSBMs) between the treatment and baseline periods. We evaluated relationships between stool form, passage, and complete evacuation. RESULTS Alfuzosin reduced anal resting pressure by 32 ± 3 mm Hg versus 16 ± 3 mm Hg for placebo (P = .0001) and anal pressure during evacuation by 26 ± 3 mm Hg versus 16 ± 3 mm Hg for placebo, (P = .03). However, alfuzosin did not significantly increase the rectoanal gradient, SBMs or CSBMs compared with placebo. Both formulations of alfuzosin were well tolerated. Hard stools and the ease of passage during defecation accounted for 72% and 76% of the variance in the satisfaction after defecation, respectively, during baseline and treatment periods. CONCLUSIONS In a randomized trial, alfuzosin reduced anal pressure at rest and during simulated evacuation in healthy and constipated women, compared with placebo, but did not improve bowel symptoms in constipated women. This could be because the drug does not improve stool form or dyssynergia, which also contribute to DD. ClinicalTrials.gov number, NCT 01834729.
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Affiliation(s)
- Subhankar Chakraborty
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Kelly Feuerhak
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Anjani Muthyala
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - William S Harmsen
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Kent R Bailey
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Adil E Bharucha
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota.
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Andrianjafy C, Luciano L, Bazin C, Baumstarck K, Bouvier M, Vitton V. Three-dimensional high-resolution anorectal manometry in functional anorectal disorders: results from a large observational cohort study. Int J Colorectal Dis 2019; 34:719-729. [PMID: 30706131 DOI: 10.1007/s00384-019-03235-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/04/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND The aim of the study was to describe the results of 3D high-resolution anorectal manometry (3DHRAM) in a large cohort of patients with functional anorectal disorders. METHODS In this single-center retrospective study, all consecutive patients referred for investigation of fecal incontinence (FI) or dyssynergic defecation (DD) underwent 3DHRAM. The parameters analyzed were usual manometric data, repartition of dyssynergic patterns, and the prevalence of a new "muscular subtype classification" underlying dyssynergia, anal sphincter defects, and pelvic floor disorders. RESULTS Final analyses were performed in 1477 patients with a mean age 54 ± 16 years; 825 patients suffered from DD, and 652 patients suffered from FI. Among these patients, 86% met the diagnostic criteria for dyssynergia. Type II dyssynergia was the most frequently observed (56%) in women and men suffering from FI and in women with DD. Type I was the most frequently observed in men with DD (49%). Regarding the muscle type subgroups, combined puborectalis muscle involvement with an external anal sphincter profile was the most frequently observed. The global prevalence of rectal intussusception and excessive perineal descent were 12% and 21%, respectively. Type III dyssynergia was more frequently associated with pelvic floor disorders than were other types of dyssynergia (p < 0.001). CONCLUSION This large cohort study provides reference values for 3DHRAM in patients with functional anorectal disorders. Further studies are necessary to assess the prevalence of pelvic floor disorders in healthy volunteers and to develop new scores and classifications including all of these new parameters.
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Affiliation(s)
- Charlotte Andrianjafy
- Gastroenterology Department, North Hospital, Assistance Publique Hôpitaux de Marseille, Aix Marseille Université, Marseille, France
| | - Laure Luciano
- Department of Gastroenterology, Instruction Hospital of French Army Laveran, Marseille, France
| | - Camille Bazin
- Gastroenterology Department, North Hospital, Assistance Publique Hôpitaux de Marseille, Aix Marseille Université, Marseille, France
| | - Karine Baumstarck
- EA3279 Self-perceived Health Assessment Research Unit, Assistance Publique Hôpitaux de Marseille, Aix Marseille Université, Marseille, France
| | - Michel Bouvier
- Gastroenterology Department, North Hospital, Assistance Publique Hôpitaux de Marseille, Aix Marseille Université, Marseille, France
| | - Véronique Vitton
- Gastroenterology Department, North Hospital, Assistance Publique Hôpitaux de Marseille, Aix Marseille Université, Marseille, France.
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Bocchini R, Chiarioni G, Corazziari E, Pucciani F, Torresan F, Alduini P, Bassotti G, Battaglia E, Ferrarini F, Galeazzi F, Londoni C, Rossitti P, Usai Satta P, Iona L, Marchi S, Milazzo G, Altomare DF, Barbera R, Bove A, Calcara C, D'Alba L, De Bona M, Goffredo F, Manfredi G, Naldini G, Neri MC, Turco L, La Torre F, D'Urso AP, Berni I, Balestri MA, Busin N, Boemo C, Bellini M. Pelvic floor rehabilitation for defecation disorders. Tech Coloproctol 2019; 23:101-115. [PMID: 30631977 DOI: 10.1007/s10151-018-1921-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/26/2018] [Indexed: 12/17/2022]
Abstract
Pelvic floor rehabilitation is frequently recommended for defecation disorders, in both constipation and fecal incontinence. However, the lack of patient selection, together with the variety of rehabilitation methods and protocols, often jeopardize the results of this approach, causing difficulty in evaluating outcomes and addressing proper management, and above all, in obtaining scientific evidence for the efficacy of these methods for specific indications. The authors represent different gastroenterological and surgical scientific societies in Italy, and their aim was to identify the indications and agree on treatment protocols for pelvic floor rehabilitation of patients with defecation disorders. This was achieved by means of a modified Delphi method, utilizing a working team (10 members) which developed the statements and a consensus group (15 members, different from the previous ones) which voted twice also suggesting modifications of the statements.
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Affiliation(s)
- R Bocchini
- Gastroenterology Unit, Malatesta Novello Private Hospital, Cesena, Italy.
| | - G Chiarioni
- RFF Division of Gastroenterology, University of Verona, Verona, Italy.,Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - E Corazziari
- Department of Gastroenterology, Istituto Clinico Humanitas, Milan, Italy
| | - F Pucciani
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - F Torresan
- Department of Medical and Surgical Sciences, St. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - P Alduini
- Gastroenterology and Endoscopy Unit, San Luca Hospital, Lucca, Italy
| | - G Bassotti
- Gastroenterology and Hepatology Section, Department of Medicine, University of Perugia Medical School, Perugia, Italy
| | - E Battaglia
- Gastroenterology and Endoscopy Unit, Cardinal Massaia Hospital, Asti, Italy
| | - F Ferrarini
- Endoscopy Unit, San Clemente Private Hospital, Mantua, Italy
| | - F Galeazzi
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - C Londoni
- Gastroenterology and Endoscopy Unit, ASST "Maggiore", Crema, Cremona, Italy
| | - P Rossitti
- Gastroenterology Unit, S. Maria della Misericordia Hospital, Udine, Italy
| | - P Usai Satta
- Gastroenterology Unit, G. Brotzu Hospital, Cagliari, Italy
| | - L Iona
- Early Rehabilitation Department, S. Maria della Misericordia Hospital, Udine, Italy
| | - S Marchi
- Gastrointestinal Unit, Departmentt. of General Surgery, University of Pisa, Pisa, Italy
| | - G Milazzo
- U.O.Lungodegenza e Medicina, Ospedale Vittorio Emanuele III, Salemi, Tp, Italy
| | - D F Altomare
- Department of Emergency and Organ Transplantation (DETO) and Interdepart mental Research Center for Pelvic Floor Dysfunction (CIRPAP), University Aldo Moro, Policlinico, Bari, Italy
| | - R Barbera
- San Giuseppe Multimedica Hospital, Milan, Italy
| | - A Bove
- Gastroenterology and Endoscopy Unit, Department of Gastroenterology, A. Cardarelli Hospital, Naples, Italy
| | - C Calcara
- Gastroenterology Unit, SSVD Gastroenterologia, Ospedale SS Trinità, Borgomanero, No, Italy
| | - L D'Alba
- Gastroenterology and Digestive Endoscopy Unit, San Giovanni-Addolorata Hospital, Rome, Italy
| | - M De Bona
- Gastroenterology and Endoscopy Unit, Feltre Hospital, Feltre, Bl, Italy
| | - F Goffredo
- Gastroenterology and Endoscopy Unit, San Camillo-Forlanini Hospital, Rome, Italy
| | - G Manfredi
- Department of Gastroenterology and Digestive Endoscopy, Crema Hospital, ASST CREMA, Crema, Italy
| | - G Naldini
- Proctological and Perineal Surgery Unit, Cisanello University Hospital, Pisa, Italy
| | - M C Neri
- Gastroenterology Unit, Geriatric Institute "Pio Albergo Trivulzio", Milan, Italy
| | - L Turco
- Department of Digestive Physiopathology, Healte Center "Cittadella della Salute", Lecce, Italy
| | - F La Torre
- Department of Surgical Sciences, University "La Sapienza", Policlinico Umberto I, Rome, Italy
| | | | - I Berni
- Rehabilitation Department, San Luca Hospital, Lucca, Italy
| | - M A Balestri
- Proctological and Perineal Surgery Unit, Cisanello University Hospital, Pisa, Italy
| | - N Busin
- Rehabilitation Department, Villa Igea Private Hospital, Forlì, Italy
| | - C Boemo
- Early Rehabilitation Department, S. Maria della Misericordia Hospital, Udine, Italy
| | - M Bellini
- Gastrointestinal Unit, Department of General Surgery, University of Pisa, Pisa, Italy
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Chedid V, Vijayvargiya P, Halawi H, Park SY, Camilleri M. Audit of the diagnosis of rectal evacuation disorders in chronic constipation. Neurogastroenterol Motil 2019; 31:e13510. [PMID: 30426597 PMCID: PMC6296898 DOI: 10.1111/nmo.13510] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/08/2018] [Accepted: 10/16/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Balloon expulsion test (BET) and high-resolution anorectal manometry (HRM) are used in diagnosis of rectal evacuation disorders (REDs); their performance characteristics are suboptimal. METHODS We audited records of 449 consecutive patients with chronic constipation (CC). We documented anal sphincter tone and contraction, puborectalis tenderness, and perineal descent on digital rectal exam (DRE); maximum resting and squeeze pressures, and rectoanal pressure gradient on HRM; weight or time to balloon expulsion; colonic transit, and area of rectal area on radiograph (RASF). We based the diagnosis of RED on ≥2 abnormalities on both DRE and HRM, excluding results of BET, as the performance of BET is being investigated. Results of RED vs non-RED and results obtained using tbBET vs wbBET groups were compared. We used multivariate logistic regressions to identify predictors of RED using different diagnostic modalities. KEY RESULTS Among 449 individuals, 276 were included (74 RED and 202 non-RED). Predominant exclusions were for no HRM (n = 79) or use of low resolution anorectal manometry (n = 77). Logistic regression models for abnormal tbBET showed time >60 seconds, RASF and age-predicted RED. For tbBET, the current cutoff of 60 seconds had sensitivity of 39.0% and specificity 93.0% to diagnose RED; on the other hand, applying the cutoff at 22 seconds, the sensitivity was 77.8% and specificity 69.8%. CONCLUSIONS & INFERENCES The clinical diagnosis of RED in patients with CC is achieved with combination of DRE, HRM and an optimized, time-based BET. Prospective studies are necessary to confirm the proposed 22 second cutoff for tbBET.
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Affiliation(s)
- Victor Chedid
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Mayo Clinic, Rochester, Minnesota
| | - Priya Vijayvargiya
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Mayo Clinic, Rochester, Minnesota
| | - Houssam Halawi
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Mayo Clinic, Rochester, Minnesota
| | - Seon-Young Park
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Mayo Clinic, Rochester, Minnesota
| | - Michael Camilleri
- Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Mayo Clinic, Rochester, Minnesota
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Seo M, Joo S, Jung KW, Song EM, Rao SSC, Myung SJ. New Metrics in High-Resolution and High-Definition Anorectal Manometry. Curr Gastroenterol Rep 2018; 20:57. [PMID: 30397834 DOI: 10.1007/s11894-018-0662-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW To review recently published diagnostic methods that use high-resolution (HR-) or high-definition- (HD-) anorectal manometry (ARM) techniques. RECENT FINDINGS The integrated pressurized volume (IPV) is a new measure based on spatiotemporal plots obtained from HR-ARM. The IPV may be clinically useful for improving the prediction of abnormal balloon expulsion test in patients with constipation and for discriminating patients with anorectal disorders from asymptomatic controls. Combination of IPV parameters was superior to conventional manometric parameters in predicting the responsiveness to biofeedback therapy. Moreover, several novel parameters including the HR-ARM resting integral, HR-ARM squeeze profile, and anorectal asymmetry index may each be useful as predictive factors for identifying patients with fecal incontinence. HR- and HD-ARM are increasingly performed worldwide for evaluation of anorectal function. Here, we describe new metrics whose clinical significance has not been fully established. Further standardization and validation of these metrics could provide clinically important new information and could help improve our understanding of the pathophysiology of anorectal disorders.
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Affiliation(s)
- Myeongsook Seo
- Department of Internal Medicine, Konkuk University Chungju Hospital, Chungju, South Korea
| | - Segyeong Joo
- Department of Biomedical Engineering, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Kee Wook Jung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea.
| | - Eun Mi Song
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Satish S C Rao
- Division of Gastroenterology and Hepatology, Department of Medicine, Augusta University, Augusta, GA, USA
| | - Seung-Jae Myung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea.
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Ciriza de Los Ríos C, Mínguez M, Remes-Troche JM, Lacima G. High-resolution and high-definition anorectal manometry: rediscovering anorectal function. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2018; 110:794-805. [PMID: 30345781 DOI: 10.17235/reed.2018.5705/2018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Anorectal motor and functional disorders are common among the general population. Anorectal manometry allows the study of anorectal motor activity both at rest and mimicking different physiological situations. High-resolution anorectal manometry (HR-ARM) and high-definition anorectal manometry (HD-ARM) are increasingly used in clinical practice. In comparison with the conventional technique, HR-ARM and HD-ARM catheters provide a higher number of recording points because of their many, closely packed circumferential sensors. This allows time-space visualization (topographic or 2-3-plane mode) as spatially continuous measurements are obtained by interpolation between near sensors. HR-ARM and HD-ARM allow a more standardized, reproducible technique, and a better assessment and understanding of the functional anatomy of the sphincter complex. Newer specific parameters are now being developed for use with these systems. They are being currently assessed by multiple research teams, and many of them remain unavailable for clinical practice as of today. However, they provide highly relevant information, which is now prompting a redefinition of anorectal anatomy and physiology. The goal of the present review was to describe the currently available HR-ARM and HD-ARM techniques, to discuss the normal values so far reported, and to analyze the newer parameters that may be assessed with these techniques, and which will likely be highly useful for clinical practice in the upcoming future.
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Affiliation(s)
| | - Miguel Mínguez
- Gastroenterología y Hepatología, Hospital Clínico Universitario Valencia, España
| | - Jose María Remes-Troche
- Fisiología digestiva y motilidad avanzada, Instituto de Investigaciones Médico-Biologicas, Universidad Veracruzana, Mexico
| | - Glòria Lacima
- Cirugía Gastrointestinal, Hospital Univeristario Clinic Barcelona
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Abstract
Constipation, a condition characterized by heterogeneous symptoms, is common in Western society. It is associated with reduced physical health, mental health, and social functioning. Because constipation is rarely due to a life-threatening disease (for example, colon cancer), current guidelines recommend empiric therapy. Limited surveys suggest that fewer than half of treated individuals are satisfied with treatment, perhaps because the efficacy of drugs is limited, they are associated with undesirable side effects, or they may not target the underlying pathophysiology. For example, although a substantial proportion of constipated patients have a defecatory disorder that is more appropriately treated with pelvic floor biofeedback therapy than with laxatives, virtually no pharmacological trials formally assessed for anorectal dysfunction. Recent advances in investigational tools have improved our understanding of the physiology and pathophysiology of colonic and defecatory functions. In particular, colonic and anorectal high-resolution manometry are now available. High-resolution anorectal manometry, which is increasingly used in clinical practice, at least in the United States, provides a refined assessment of anorectal pressures and may uncover structural abnormalities. Advances in our understanding of colonic molecular physiology have led to the development of new therapeutic agents (such as secretagogues, pro-kinetics, inhibitors of bile acid transporters and ion exchangers). However, because clinical trials compare these newer agents with placebo, their efficacy relative to traditional laxatives is unknown. This article reviews these physiologic, diagnostic, and therapeutic advances and focuses particularly on newer therapeutic agents.
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Affiliation(s)
- David O. Prichard
- Division of Gastroenterology and Hepatology, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA
| | - Adil E. Bharucha
- Clinical Enteric Neuroscience Translational and Epidemiological Research Program and Division of Gastroenterology and Hepatology, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA
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Abstract
PURPOSE OF REVIEW To summarize the current recommendations for the evaluation and management of defecatory dysfunction in women and highlight key relationships between defecatory dysfunction and other pelvic floor disorders, including pelvic organ prolapse, fecal incontinence, and voiding dysfunction. RECENT FINDINGS Conservative measures including lifestyle modifications, pharmacotherapy, and biofeedback continue to be the mainstay of treatment with newer therapies emerging. Physiologic testing and/or radiologic imaging should be considered for those who fail conservative therapy or are clinically complex. Surgical management is appropriate for carefully selected patients with anatomic causes of defecatory dysfunction. Further research is needed on surgical outcomes and patient expectations. SUMMARY Pelvic floor disorders, including defecatory dysfunction, have a significant societal impact and are highly prevalent among women. Given its potential complexity, a broader focus is needed when evaluating women with defecatory symptoms and effective treatment may require multidisciplinary care.
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Seo M, Joo S, Jung KW, Lee J, Lee HJ, Soh JS, Yoon IJ, Koo HS, Seo SY, Kim D, Hwang SW, Park SH, Yang DH, Ye BD, Byeon JS, Jung HY, Yang SK, Rao SS, Myung SJ. A high-resolution anorectal manometry parameter based on integrated pressurized volume: A study based on 204 male patients with constipation and 26 controls. Neurogastroenterol Motil 2018; 30:e13376. [PMID: 29797379 DOI: 10.1111/nmo.13376] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 04/12/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Conventional anorectal manometric parameters based on linear waves cannot properly predict balloon expulsion (BE) time. We aimed to determine the correlation between integrated pressurized volume (IPV) parameters during simulated evacuation (SE) and BE time in healthy individuals and constipated patients and to assess the correlation between each parameter and symptoms. METHODS A total of 230 male participants (including 26 healthy volunteers and 204 chronically constipated patients) underwent high-resolution anorectal manometry (HRAM) and BE tests. The IPV was calculated by multiplying the amplitude, distance, and time from the HRAM profile. Receiver operating characteristic curve (ROC) analysis and partial least square regression (PLSR) were performed. KEY RESULTS ROC analysis indicated that the IPV ratio between the upper 1 cm and lower 4 cm of the anal canal was more effective for predicting BE time (area under the curve [AUC]: 0.74, 95% confidence interval [CI]: 0.67-0.80, P < .01) than the conventional anorectal parameters, including defecation index and rectoanal gradient (AUC: 0.60, 95% CI: 0.52-0.67, P = .01). PLSR analysis of a linear combination of IPV parameters yielded an AUC of 0.79. Moreover, the IPV ratio showed a greater clinical correlation with patient symptoms than conventional parameters. CONCLUSIONS AND INFERENCES The IPV parameters and the combination of IPV parameters via PLSR were more significantly correlated with BE time than the conventional parameters. Thus, this study presents a useful diagnostic tool for the evaluation of pathophysiologic abnormalities in dyssynergic defecation using IPV and BE time.
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Affiliation(s)
- M Seo
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S Joo
- Department of Biomedical Engineering, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - K W Jung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J Lee
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H J Lee
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,Health Screening and Promotion Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J S Soh
- Department of Internal Medicine, University of Hallym College of Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - I J Yoon
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H S Koo
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S Y Seo
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - D Kim
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S W Hwang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S H Park
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - D-H Yang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - B D Ye
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J-S Byeon
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H-Y Jung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S-K Yang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S S Rao
- Department of Medicine, Division of Gastroenterology and Hepatology, Augusta University, Augusta, GA, USA
| | - S-J Myung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Lee YY, Erdogan A, Yu S, Dewitt A, Rao SSC. Anorectal Manometry in Defecatory Disorders: A Comparative Analysis of High-resolution Pressure Topography and Waveform Manometry. J Neurogastroenterol Motil 2018; 24:460-468. [PMID: 29879762 PMCID: PMC6034662 DOI: 10.5056/jnm17081] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 02/03/2018] [Accepted: 03/26/2018] [Indexed: 01/07/2023] Open
Abstract
Background/Aims Whether high-resolution anorectal pressure topography (HRPT), having better fidelity and spatio-temporal resolution is comparable to waveform manometry (WM) in the diagnosis and characterization of defecatory disorders (DD) is not known. Methods Patients with chronic constipation (Rome III) were evaluated for DD with HRPT and WM during bearing-down “on-bed” without inflated rectal balloon and “on-commode (toilet)” with 60-mL inflated rectal balloon. Eleven healthy volunteers were also evaluated. Results Ninety-three of 117 screened participants (F/M = 77/16) were included. Balloon expulsion time was abnormal (> 60 seconds) in 56% (mean 214.4 seconds). A modest correlation between HRPT and WM was observed for sphincter length (R = 0.4) and likewise agreement between dyssynergic subtypes (κ = 0.4). During bearing down, 2 or more anal pressure-segments (distal and proximal) could be appreciated and their expansion measured with HRPT but not WM. In constipated vs healthy participants, the proximal segment was more expanded (2.0 cm vs 1.0 cm, P = 0.003) and of greater pressure (94.8 mmHg vs 54.0 mmHg, P = 0.010) during bearing down on-commode but not on-bed. Conclusions Because of its better resolution, HRPT may identify more structural and functional abnormalities including puborectal dysfunction (proximal expansion) than WM. Bearing down on-commode with an inflated rectal balloon may provide additional dimension in characterizing DD.
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Affiliation(s)
- Yeong Yeh Lee
- Section of Gastroenterology and Hepatology, Augusta University, Augusta, GA, USA.,School of Medical Sciences, Universiti Sains Malaysia, Kota Bahru, Kelantan, Malaysia
| | - Askin Erdogan
- Section of Gastroenterology and Hepatology, Augusta University, Augusta, GA, USA
| | - Siegfried Yu
- Section of Gastroenterology and Hepatology, Augusta University, Augusta, GA, USA
| | - Annie Dewitt
- Section of Gastroenterology and Hepatology, Augusta University, Augusta, GA, USA
| | - Satish S C Rao
- Section of Gastroenterology and Hepatology, Augusta University, Augusta, GA, USA
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63
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Lee TH. Is High-resolution Anorectal Pressure Topography More Useful Than Wave Manometry in Dyssynergic Defecation? J Neurogastroenterol Motil 2018; 24:331-333. [PMID: 29969854 PMCID: PMC6034659 DOI: 10.5056/jnm18105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 06/10/2018] [Indexed: 12/13/2022] Open
Affiliation(s)
- Tae Hee Lee
- Institute for Digestive Research, Soonchunhyang University Seoul Hospital, Seoul, Korea
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64
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Patcharatrakul T, Rao SS. Update on the Pathophysiology and Management of Anorectal Disorders. Gut Liver 2018; 12:375-384. [PMID: 29050194 PMCID: PMC6027829 DOI: 10.5009/gnl17172] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/05/2017] [Accepted: 06/10/2017] [Indexed: 12/11/2022] Open
Abstract
Anorectal disorders are common and present with overlapping symptoms. They include several disorders with both structural and functional dysfunction(s). Because symptoms alone are poor predictors of the underlying pathophysiology, a diagnosis should only be made after evaluating symptoms and physiologic and structural abnormalities. A detailed history, a thorough physical and digital rectal examination and a systematic evaluation with high resolution and/or high definition three-dimensional (3D) anorectal manometry, 3D anal ultrasonography, magnetic resonance defecography and neurophysiology tests are essential to correctly identify these conditions. These physiological and imaging tests play a key role in facilitating a precise diagnosis and in providing a better understanding of the pathophysiology and functional anatomy. In turn, this leads to better and more comprehensive management using medical, behavioral and surgical approaches. For example, patients presenting with difficult defecation may demonstrate dyssynergic defecation and will benefit from biofeedback therapy before considering surgical treatment of coexisting anomalies such as rectoceles or intussusception. Similarly, patients with significant rectal prolapse and pelvic floor dysfunction or patients with complex enteroceles and pelvic organ prolapse may benefit from combined behavioral and surgical approaches, including an open, laparoscopic, transabdominal or transanal, and/or robotic-assisted surgery. Here, we provide an update on the pathophysiology, diagnosis, and management of selected common anorectal disorders.
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Affiliation(s)
- Tanisa Patcharatrakul
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, GA,
USA
- Division of Gastroenterology, Department of Medicine, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok,
Thailand
| | - Satish S.C. Rao
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, GA,
USA
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65
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Seong MK. Assessment of functional defecation disorders using anorectal manometry. Ann Surg Treat Res 2018; 94:330-336. [PMID: 29854711 PMCID: PMC5976574 DOI: 10.4174/astr.2018.94.6.330] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 10/21/2017] [Accepted: 12/12/2017] [Indexed: 11/30/2022] Open
Abstract
Purpose The aim was to evaluate the discriminating accuracy of anorectal manometry (ARM) between nonconstipated (NC) subjects and functionally constipated (FC) subjects, and between FC subjects with and without functional defecation disorder (FDD). Methods Among female patients who visited anorectal physiology unit, those who could be grouped to following categories were included; FC group with FDD (+FDD subgroup), or without FDD (−FDD subgroup) and NC group. ARM was performed and interpreted not only with absolute pressure values, but also pattern classification and quantification of pressure changes in the rectum and anus during attempted defecation. Results There were 76 subjects in NC group and 75 in FC group. Among FC group, 63 subjects were in −FDD subgroup and 12 in +FDD subgroup. In pattern classification of pressure changes, type 0, as ‘normal’ response, was only slightly more prevalent in NC group than in FC group. When all ‘abnormal’ types (types 1–5) were considered together as positive findings, the sensitivity and specificity of pattern classification in diagnosing FC among all subjects were 89.3% and 22.7%. Those values in diagnosing FDD among FC group were 91.7% and 11.1%. Manometric defecation index (MDI) as a quantification parameter was significantly different between −FDD and +FDD subgroups. Other conventional absolute pressures were mostly comparable between the groups. Conclusion Among all parameters of ARM, MDI was useful to diagnose FDD in FC patients. Other parameters including the pattern classification were questionable in their ability to diagnose FDD.
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Affiliation(s)
- Moo-Kyung Seong
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
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66
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Fox M, Heinrich H, Perretta S, Steinemann D. Functional Diagnosis in Upper and Lower Gastrointestinal Diseases: Relevance for Conservative, Interdisciplinary and Surgical Therapies. Visc Med 2018; 34:140-143. [PMID: 29888244 PMCID: PMC5981582 DOI: 10.1159/000489027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Mark Fox
- Abdominal Center: Gastroenterology, St. Claraspital Basel, Basel, Switzerland
- Department of Gastroenterology and Hepatology, Universitätsspital Zürich, Zurich, Switzerland
| | - Henriette Heinrich
- Abdominal Center: Gastroenterology, St. Claraspital Basel, Basel, Switzerland
- Department of Gastroenterology and Hepatology, Universitätsspital Zürich, Zurich, Switzerland
| | - Silvana Perretta
- Department of Digestive and Endocrine Surgery, University of Strasbourg, Strasbourg, France
| | - Daniel Steinemann
- Abdominal Center: Gastroenterology, St. Claraspital Basel, Basel, Switzerland
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67
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The Mexican consensus on chronic constipation. REVISTA DE GASTROENTEROLOGÍA DE MÉXICO (ENGLISH EDITION) 2018. [DOI: 10.1016/j.rgmxen.2018.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Heinrich H, Misselwitz B. High-Resolution Anorectal Manometry - New Insights in the Diagnostic Assessment of Functional Anorectal Disorders. Visc Med 2018; 34:134-139. [PMID: 29888243 PMCID: PMC5981680 DOI: 10.1159/000488611] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Functional anorectal disorders such as faecal incontinence (FI), functional anorectal pain, and functional defecation disorders (FDD) are highly prevalent and represent a high socioeconomic burden. Several tests of anorectal function exist in this setting; however, high-resolution anorectal manometry (HR-ARM) is a new tool that depicts pressure all along the anal canal and can assess rectoanal coordination. HR-ARM is used in the diagnosis of FI and especially FDD although data in health is still sparse, and pressure phenomena seen during simulated defecation, such as dyssynergia, are highly prevalent in health.
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Affiliation(s)
- Henriette Heinrich
- Abdominal Center: Gastroenterology, St. Claraspital Basel, Basel, Switzerland
- Department of Gastroenterology and Hepatology, Universitätsspital Zürich, Zurich, Switzerland
| | - Benjamin Misselwitz
- Department of Gastroenterology and Hepatology, Universitätsspital Zürich, Zurich, Switzerland
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69
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The Mexican consensus on chronic constipation. REVISTA DE GASTROENTEROLOGÍA DE MÉXICO 2018; 83:168-189. [PMID: 29555103 DOI: 10.1016/j.rgmx.2017.12.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 12/08/2017] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Significant advances have been made in the knowledge and understanding of the epidemiology, pathophysiology, diagnosis, and treatment of chronic constipation, since the publication of the 2011 guidelines on chronic constipation diagnosis and treatment in Mexico from the Asociación Mexicana de Gastroenterología. AIMS To present a consensus review of the current state of knowledge about chronic constipation, providing updated information and integrating the new scientific evidence. METHODS Three general coordinators reviewed the literature published within the time frame of January 2011 and January 2017. From that information, 62 initial statements were formulated and then sent to 12 national experts for their revision. The statements were voted upon, using the Delphi system in 3 voting rounds (2 electronic and one face-to-face). The statements were classified through the GRADE system and those that reached agreement >75% were included in the consensus. RESULTS AND CONCLUSIONS The present consensus is made up of 42 final statements that provide updated knowledge, supplementing the information that had not been included in the previous guidelines. The strength of recommendation and quality (level) of evidence were established for each statement. The current definitions of chronic constipation, functional constipation, and opioid-induced constipation are given, and diagnostic strategies based on the available diagnostic methods are described. The consensus treatment recommendations were established from evidence on the roles of diet and exercise, fiber, laxatives, new drugs (such as prucalopride, lubiprostone, linaclotide, plecanatide), biofeedback therapy, and surgery.
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70
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Wu JF, Lu CH, Yang CH, Tsai IJ. Diagnostic Role of Anal Sphincter Relaxation Integral in High-Resolution Anorectal Manometry for Hirschsprung Disease in Infants. J Pediatr 2018; 194:136-141.e2. [PMID: 29212617 DOI: 10.1016/j.jpeds.2017.10.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 09/11/2017] [Accepted: 10/12/2017] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To investigate the possible diagnostic role of anal sphincter relaxation integral (ASRI) in high-resolution anorectal manometry (HRAM) for Hirschsprung disease. STUDY DESIGN We performed conventional anorectal manometry (ARM) in 24 infants (8 with Hirschsprung disease and 16 without Hirschsprung disease) and HRAM in another 21 infants (9 with Hirschsprung disease and 12 without Hirschsprung disease) before and after October 2014. All infants underwent rectal suction biopsy for confirmation of Hirschsprung disease. We quantified rectoanal inhibitory reflex (RAIR) adequacy by calculating the ASRI in HRAM study at pressure cutoffs of less than 10, 15, and 20 mm Hg (ASRI10, ASRI15, and ASRI20, respectively) and investigated the diagnostic utility. RESULTS Patients with Hirschsprung disease who underwent HRAM had significantly lower ASRI10, ASRI15, and ASRI20 values than did infants without Hirschsprung disease (P = .0002, .0002, and .0003, respectively), indicating significant difference in internal anal sphincter relaxation during RAIR test between these 2 groups. ASRI10 exhibited a greater diagnostic accuracy, area under the curve, sensitivity, and specificity than did ASRI15 and ASRI20 for Hirschsprung disease. Moreover, the diagnostic accuracy of HRAM for Hirschsprung disease based on ASRI10 <7 mm Hg.s.cm was significantly greater than that of conventional ARM (P = .02). CONCLUSIONS ASRI10 may be indicative of the adequacy of RAIR by HRAM in infants, thus assisting the diagnosis of Hirschsprung disease. The diagnostic accuracy of HRAM (based on the ASRI10 value) is greater than that of conventional ARM for Hirschsprung disease. ASRI10 may be used in an automatic HRAM analysis system for the diagnosis of anorectal motility disorders.
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Affiliation(s)
- Jia-Feng Wu
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan.
| | - Cheng-Hsun Lu
- Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan
| | - Chia-Hsiang Yang
- Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan; Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
| | - I-Jung Tsai
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
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71
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Grossi U, Stevens N, McAlees E, Lacy-Colson J, Brown S, Dixon A, Di Tanna GL, Scott SM, Norton C, Marlin N, Mason J, Knowles CH. Stepped-wedge randomised trial of laparoscopic ventral mesh rectopexy in adults with chronic constipation: study protocol for a randomized controlled trial. Trials 2018; 19:90. [PMID: 29402303 PMCID: PMC5800022 DOI: 10.1186/s13063-018-2456-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 12/30/2017] [Indexed: 02/08/2023] Open
Abstract
Background Laparoscopic ventral mesh rectopexy (LVMR) is an established treatment for external full-thickness rectal prolapse. However, its clinical efficacy in patients with internal prolapse is uncertain due to the lack of high-quality evidence. Methods An individual level, stepped-wedge randomised trial has been designed to allow observer-blinded data comparisons between patients awaiting LVMR with those who have undergone surgery. Adults with symptomatic internal rectal prolapse, unresponsive to prior conservative management, will be eligible to participate. They will be randomised to three arms with different delays before surgery (0, 12 and 24 weeks). Efficacy outcome data will be collected at equally stepped time points (12, 24, 36 and 48 weeks). The primary objective is to determine clinical efficacy of LVMR compared to controls with reduction in the Patient Assessment of Constipation Quality of Life (PAC-QOL) at 24 weeks serving as the primary outcome. Secondary objectives are to determine: (1) the clinical effectiveness of LVMR to 48 weeks to a maximum of 72 weeks; (2) pre-operative determinants of outcome; (3) relevant health economics for LVMR; (4) qualitative evaluation of patient and health professional experience of LVMR and (5) 30-day morbidity and mortality rates. Discussion An individual-level, stepped-wedge, randomised trial serves the purpose of providing an untreated comparison for the active treatment group, while at the same time allowing the waiting-listed participants an opportunity to obtain the intervention at a later date. In keeping with the basic ethical tenets of this design, the average waiting time for LVMR (12 weeks) will be shorter than that for routine services (24 weeks). Trial registration ISRCTN registry, ISRCTN11747152. Registered on 30 September 2015. The trial was prospectively registered (first patient enrolled on 21 March 2016). Electronic supplementary material The online version of this article (10.1186/s13063-018-2456-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ugo Grossi
- National Bowel Research Cente (NBRC) - Digestive Disease, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, 4 Newark Street, London, E1 2AT, UK.
| | - Natasha Stevens
- Pragmatic Clinical Trials Unit, Blizard Institute, Queen Mary, University of London, London, UK
| | - Eleanor McAlees
- National Bowel Research Cente (NBRC) - Digestive Disease, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, 4 Newark Street, London, E1 2AT, UK
| | | | | | | | - Gian Luca Di Tanna
- Pragmatic Clinical Trials Unit, Blizard Institute, Queen Mary, University of London, London, UK
| | - S Mark Scott
- National Bowel Research Cente (NBRC) - Digestive Disease, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, 4 Newark Street, London, E1 2AT, UK
| | | | - Nadine Marlin
- Pragmatic Clinical Trials Unit, Blizard Institute, Queen Mary, University of London, London, UK
| | | | - Charles H Knowles
- National Bowel Research Cente (NBRC) - Digestive Disease, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, 4 Newark Street, London, E1 2AT, UK
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Camilleri M, Ford AC, Mawe GM, Dinning PG, Rao SS, Chey WD, Simrén M, Lembo A, Young-Fadok TM, Chang L. Chronic constipation. Nat Rev Dis Primers 2017; 3:17095. [PMID: 29239347 DOI: 10.1038/nrdp.2017.95] [Citation(s) in RCA: 195] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Chronic constipation is a prevalent condition that severely impacts the quality of life of those affected. Several types of primary chronic constipation, which show substantial overlap, have been described, including normal-transit constipation, rectal evacuation disorders and slow-transit constipation. Diagnosis of primary chronic constipation involves a multistep process initiated by the exclusion of 'alarm' features (for example, unintentional weight loss or rectal bleeding) that might indicate organic diseases (such as polyps or tumours) and a therapeutic trial with first-line treatments such as dietary changes, lifestyle modifications and over-the-counter laxatives. If symptoms do not improve, investigations to diagnose rectal evacuation disorders and slow-transit constipation are performed, such as digital rectal examination, anorectal structure and function testing (including the balloon expulsion test, anorectal manometry or defecography) or colonic transit tests (such as the radiopaque marker test, wireless motility capsule test, scintigraphy or colonic manometry). The mainstays of treatment are diet and lifestyle interventions, pharmacological therapy and, rarely, surgery. This Primer provides an introduction to the epidemiology, pathophysiological mechanisms, diagnosis, management and quality of life associated with the commonly encountered clinical problem of chronic constipation in adults unrelated to opioid abuse.
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Affiliation(s)
- Michael Camilleri
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Charlton Bldg., Rm. 8-110, Rochester, Minnesota 55905, USA
| | - Alexander C Ford
- Leeds Gastroenterology Institute, St. James's University Hospital, Leeds and Leeds Institute of Biomedical and Clinical Sciences, University of Leeds, Leeds, UK
| | - Gary M Mawe
- Department of Neurological Sciences, The University of Vermont, Burlington, Vermont, USA
| | - Phil G Dinning
- Departments of Gastroenterology & Surgery, Flinders University, Flinders Medical Centre, Adelaide, South Australia, Australia
| | - Satish S Rao
- Division of Gastroenterology and Hepatology, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - William D Chey
- Division of Gastroenterology, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Magnus Simrén
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anthony Lembo
- Digestive Disease Center, Beth Israel Deaconess Hospital, Boston, Massachusetts, USA
| | | | - Lin Chang
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, California, USA
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Skardoon GR, Khera AJ, Emmanuel AV, Burgell RE. Review article: dyssynergic defaecation and biofeedback therapy in the pathophysiology and management of functional constipation. Aliment Pharmacol Ther 2017; 46:410-423. [PMID: 28660663 DOI: 10.1111/apt.14174] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 10/18/2016] [Accepted: 05/13/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Functional constipation is a common clinical presentation in primary care. Functional defaecation disorders are defined as the paradoxical contraction or inadequate relaxation of the pelvic floor muscles during attempted defaecation (dyssynergic defaecation) and/or inadequate propulsive forces during attempted defaecation. Prompt diagnosis and management of dyssynergic defaecation is hindered by uncertainty regarding nomenclature, diagnostic criteria, pathophysiology and efficacy of management options such as biofeedback therapy. AIM To review the evidence pertaining to the pathophysiology of functional defaecation disorders and the efficacy of biofeedback therapy in the management of patients with dyssynergic defaecation and functional constipation. METHODS Relevant articles addressing functional defaecation disorders and the efficacy of biofeedback therapy in the management of dyssynergic defaecation and functional constipation were identified from a search of Pubmed, MEDLINE Ovid and the Cochrane Library. RESULTS The prevalence of dyssynergic defaecation in patients investigated for chronic constipation is as many as 40%. Randomised controlled trials have demonstrated major symptom improvement in 70%-80% of patients undergoing biofeedback therapy for chronic constipation resistant to standard medical therapy and have determined it to be superior to polyethylene glycol laxatives, diazepam or sham therapy. Long-term studies have shown 55%-82% of patients maintain symptom improvement. CONCLUSIONS Dyssynergic defaecation is a common clinical condition in patients with chronic constipation not responding to conservative management. Biofeedback therapy appears to be a safe, successful treatment with sustained results for patients with dyssynergic defaecation. Further studies are required to standardise the diagnosis of dyssynergic defaecation in addition to employing systematic protocols for biofeedback therapy.
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Affiliation(s)
| | - A J Khera
- Alfred Health Continence Clinic, Caulfield, Vic., Australia
| | - A V Emmanuel
- GI Physiology Unit, University College Hospital, National Hospital for Neurology and Neurosurgery, London, UK
| | - R E Burgell
- Alfred Health and Monash University, Melbourne, Vic., Australia
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74
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Mion F, Garros A, Brochard C, Vitton V, Ropert A, Bouvier M, Damon H, Siproudhis L, Roman S. 3D High-definition anorectal manometry: Values obtained in asymptomatic volunteers, fecal incontinence and chronic constipation. Results of a prospective multicenter study (NOMAD). Neurogastroenterol Motil 2017; 29. [PMID: 28251732 DOI: 10.1111/nmo.13049] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/13/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND 3D-high definition anorectal manometry (3DARM) may aid the diagnosis of functional anorectal disorders, but data comparing asymptomatic and symptomatic subjects are scarce. We aimed to describe 3DARM values in asymptomatic volunteers and those with fecal incontinence (FI) or chronic constipation (CC), and identify which variables differentiate best these groups. METHODS Asymptomatic subjects were stratified by sex, age, and parity. Those with FI or CC were included according to anorectal symptom questionnaires. Endoanal ultrasound examination and 3DARM were performed the same day. Anal pressures were analyzed at rest, during voluntary squeeze, and during push maneuver, and compared between the 3 groups. Anal pressure defects were defined and compared to ultrasound defects. KEY RESULTS A total of 126 subjects (113 female, mean age 52 years, range 18-83) were included; 36 asymptomatic, 38 FI, 42 CC. Anal resting and squeeze pressures, and rectal sensitivity values were lower in FI women than in the other groups. Typical anal sphincter asymmetry during squeezing was less frequently observed in FI women. A dyssynergic pattern during push maneuver was found in 70% of asymptomatic subjects, and with a similar frequency in the 2 symptomatic groups. There was slight concordance between 3D-pressure defects and ultrasound defects. CONCLUSIONS & INFERENCES 3D anal pressures in asymptomatic women were significantly lower than in men, and in FI compared to asymptomatic women. The classical dyssynergic pattern during push maneuver was found as frequently in asymptomatic and symptomatic patients. Further studies should try to identify 3DARM variables that could reliably identify dyssynergic defecation.
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Affiliation(s)
- F Mion
- Exploration Fonctionnelle Digestive, Hospital Edouard Herriot, Hospices Civils de Lyon, Lyon I University, and INSERM 1032 LabTAU, Lyon, France
| | - A Garros
- Exploration Fonctionnelle Digestive, Hospital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - C Brochard
- Digestive Physiology and Gastroenterology, Pontchaillou Hospital, CHU de Rennes, Rennes, France
| | - V Vitton
- Digestive Physiology, North Hospital, Assistance Publique Hôpitaux de Marseille, Aix-Marseille University, Marseille, France
| | - A Ropert
- Digestive Physiology and Gastroenterology, Pontchaillou Hospital, CHU de Rennes, Rennes, France
| | - M Bouvier
- Digestive Physiology, North Hospital, Assistance Publique Hôpitaux de Marseille, Aix-Marseille University, Marseille, France
| | - H Damon
- Exploration Fonctionnelle Digestive, Hospital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - L Siproudhis
- Digestive Physiology and Gastroenterology, Pontchaillou Hospital, CHU de Rennes, Rennes, France
| | - S Roman
- Exploration Fonctionnelle Digestive, Hospital Edouard Herriot, Hospices Civils de Lyon, Lyon I University, and INSERM 1032 LabTAU, Lyon, France
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75
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Carrington EV, Heinrich H, Knowles CH, Rao SS, Fox M, Scott SM. Methods of anorectal manometry vary widely in clinical practice: Results from an international survey. Neurogastroenterol Motil 2017; 29:e13016. [PMID: 28101937 DOI: 10.1111/nmo.13016] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 11/28/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND Ano-rectal manometry (ARM) is the most commonly performed investigation for assessment of anorectal dysfunction. Its use is supported by expert consensus documents and international guidelines. Variation in technology, data acquisition, and analysis affect results and clinical interpretation. This study examined variation in ARM between institutions to establish the status of current practice. METHODS A 50-item web-based questionnaire assessing analysis and interpretation of ARM was distributed by the International Anorectal Physiology Working Group via societies representing practitioners that perform ARM. Study methodology and performance characteristics between institutions were compared. KEY RESULTS One hundred and seven complete responses were included from 30 countries. Seventy-nine (74%) institutions performed at least two studies per week. Forty-nine centers (47%) applied conventional ARM (≤8 pressure sensors) and 57 (53%) high-resolution ARM (HR-ARM). Specialist centers were most likely to use HR-ARM compared to regional hospitals and office-based practice (63% vs 37%). Most conventional ARM systems used water-perfused technology (34/49); solid-state hardware was more frequently used in centers performing HR-ARM (44/57). All centers evaluated rest and squeeze. There was marked variation in the methods used to report results of maneuvers. No two centers had identical protocols for patient preparation, setup, study, and data interpretation, and no center fully complied with published guidelines. CONCLUSIONS & INFERENCES There is significant discrepancy in methods for data acquisition, analysis, and interpretation of ARM. This is likely to impact clinical interpretation, transfer of data between institutions, and research collaboration. There is a need for expert international co-operation to standardize ARM.
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Affiliation(s)
- E V Carrington
- National Bowel Research Centre & GI Physiology Unit, Queen Mary University of London, London, UK
| | - H Heinrich
- National Bowel Research Centre & GI Physiology Unit, Queen Mary University of London, London, UK.,Department of Gastroenterology and Hepatology, University Hospital Zürich, Zürich, Switzerland
| | - C H Knowles
- National Bowel Research Centre & GI Physiology Unit, Queen Mary University of London, London, UK
| | - S S Rao
- Division of Gastroenterology & Hepatology, Department of Internal Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - M Fox
- Department of Gastroenterology and Hepatology, University Hospital Zürich, Zürich, Switzerland.,Abdominal Center: Gastroenterology, St. Claraspital, Basel, Switzerland
| | - S M Scott
- National Bowel Research Centre & GI Physiology Unit, Queen Mary University of London, London, UK
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76
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Basilisco G, Bharucha AE. High-resolution anorectal manometry: An expensive hobby or worth every penny? Neurogastroenterol Motil 2017; 29:10.1111/nmo.13125. [PMID: 28699318 PMCID: PMC5609826 DOI: 10.1111/nmo.13125] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 05/13/2017] [Indexed: 12/20/2022]
Abstract
Introduced approximately 10 years ago, high-resolution manometry catheters have fostered interest in anorectal manometry. This review, which accompanies two articles in this issue of Neurogastroenterology and Motility, reviews the methods, clinical indications, utility, and pitfalls of anorectal manometry and revisits the American Gastroenterological Association (AGA) Medical Position Statement on Anorectal Testing Techniques, which was last published in 1999. High-resolution manometry provides a refined assessment of the anorectal pressure profile, obviates the need for station pull-through maneuvers, and minimizes movement artifacts. In selected cases, this refined assessment may be useful for identifying structural abnormalities or anal weakness. However, many manometry patterns that were previously regarded as abnormal are also observed in a majority of healthy patients, which substantially limits the utility of manometry for identifying defecatory disorders. It is our impression that most conclusions of the AGA medical position statement from 1999 remain valid today. High-resolution techniques have not substantially affected the number of publications on or management of anorectal disorders. The ongoing efforts of an international working group to standardize techniques for anorectal manometry are welcome. Although high-resolution manometry is more than an expensive hobby, improvements in catheter design and further research to rigorously define and evaluate these techniques are necessary to determine if they are worth every penny.
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Affiliation(s)
- G. Basilisco
- UO Gastroenterologia; Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico; Milano Italy
| | - A. E. Bharucha
- Division of Gastroenterology and Hepatology; Mayo Clinic; Rochester MN USA
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Abstract
Functional gastrointestinal disorders (FGIDs) are diagnosed and classified using the Rome criteria; the criteria may change over time as new scientific data emerge. The Rome IV was released in May 2016. The aim is to review the main changes in Rome IV. FGIDs are now called disorders of gut-brain interaction (DGBI). Rome IV has a multicultural rather than a Western-culture focus. There are new chapters including multicultural, age-gender-women's health, intestinal microenvironment, biopsychosocial, and centrally mediated disorders. New disorders have been included although not truly FGIDs, but fit the new definition of DGBI including opioid-induced gastrointestinal hyperalgesia , opioid-induced constipation , and cannabinoid hyperemesis . Also, new FGIDs based on available evidence including reflux hypersensitivity and centrally mediated abdominal pain syndrome . Using a normative survey to determine the frequency of normal bowel symptoms in the general population changes in the time frame for diagnosis were introduced. For irritable bowel syndrome (IBS) only pain is required and discomfort was eliminated because it is non-specific, having different meanings in different languages. Pain is now related to bowel movements rather than just improving with bowel movements (ie, can get worse with bowel movement). Functional bowel disorders (functional diarrhea , functional constipation , IBS with predominant diarrhea [IBS-D], IBS with predominant constipation [IBS-C ], and IBS with mixed bowel habits ) are considered to be on a continuum rather than as independent entities. Clinical applications such as diagnostic algorithms and the Multidimensional Clinical Profile have been updated. The new Rome IV iteration is evidence-based, multicultural oriented and with clinical applications. As new evidence become available, future updates are expected.
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Affiliation(s)
- Max J Schmulson
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina-Universidad Nacional Autónoma de México (UNAM), Hospital General de México, Dr. Eduardo Liceaga, Mexico City,
Mexico
| | - Douglas A Drossman
- Center for Functional GI and Motility Disorders at University of North Carolina, NC,
USA
- Center for Education and Practice of Biopsychosocial Care and Drossman Gastroenterology, Chapel Hill, NC,
USA
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78
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Benezech A, Cappiello M, Baumstarck K, Grimaud JC, Bouvier M, Vitton V. Rectal intussusception: can high resolution three-dimensional ano-rectal manometry compete with conventional defecography? Neurogastroenterol Motil 2017; 29. [PMID: 27891706 DOI: 10.1111/nmo.12978] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 09/21/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND Three-dimensional high-resolution anorectal manometry (3DHRAM), used for exploring anorectal disorders, was recently developed, providing interesting topographic data for the diagnosis of pelvic floor disorders such as excessive perineal descent. The aim of our study was to define a diagnostic strategy based on selected 3DHRAM parameters to identify rectal intussusceptions (RI), considering conventional defecography (CD) as the gold standard. METHODS All patients referred to our center in the previous 6 months for 3DHRAM to explore fecal incontinence or constipation, and who previously achieved CD, were eligible. 3DHRAM results were obtained for all classical parameters and the presence of a narrow band of high pressure in the anal canal during attempted defecation, which was recently found to be associated with RI in some studies. The sensitivity, specificity, and positive and negative predictive values were calculated for various 3DHRAM criterion in order to propose a diagnostic strategy for RI. KEY RESULTS Twenty-six patients (66%) presented with RI on CD. On 3DHRAM, according to our diagnostic strategy, the most relevant manometric criterion for the diagnosis of RI was the association of an anterior additional high-pressure area and an excessive perineal descent, with a positive predictive value of 100% [81.5-100], a specificity of 100% [75.3-100] and a sensibility of 69.2% [48.2-85.7]. CONCLUSIONS & INFERENCES In this study, 3DHRAM was used to diagnose RI, and we confirmed its use in the diagnosis of pelvic floor disorders. Further studies will be necessary to define classifications for these new anatomic data from 3DHRAM.
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Affiliation(s)
- A Benezech
- Service de Gastroentérologie, Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, Marseille, France.,Plateforme d'interface clinique, CRN2M CNRS UMR 7286, Aix-Marseille Université, Marseille, France
| | - M Cappiello
- Service de Gastroentérologie, Centre Hospitalier Général de Martigues, Martigues, France
| | - K Baumstarck
- Unité d'Aide Méthodologique à la Recherche Clinique, EA 3279, Laboratoire de Santé Publique, Aix-Marseille Université, Marseille, France
| | - J-C Grimaud
- Service de Gastroentérologie, Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, Marseille, France.,Plateforme d'interface clinique, CRN2M CNRS UMR 7286, Aix-Marseille Université, Marseille, France
| | - M Bouvier
- Service de Gastroentérologie, Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, Marseille, France.,Plateforme d'interface clinique, CRN2M CNRS UMR 7286, Aix-Marseille Université, Marseille, France
| | - V Vitton
- Service de Gastroentérologie, Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, Marseille, France.,Plateforme d'interface clinique, CRN2M CNRS UMR 7286, Aix-Marseille Université, Marseille, France
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79
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Emmett C, Close H, Mason J, Taheri S, Stevens N, Eldridge S, Norton C, Knowles C, Yiannakou Y. Low-volume versus high-volume initiated trans-anal irrigation therapy in adults with chronic constipation: study protocol for a randomised controlled trial. Trials 2017; 18:151. [PMID: 28359279 PMCID: PMC5374566 DOI: 10.1186/s13063-017-1882-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 03/08/2017] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Constipation is common in adults and up to 20% of the population report this symptom. Chronic constipation (CC), usually defined as more than 6 months of symptoms, is less common but results in 0.5 million UK GP consultations per annum. The effect of symptoms on measured quality of life (QOL) is significant, and CC consumes significant health care resources. In the UK, it is estimated that 10% of district nursing time is spent on constipation. Trans-anal irrigation therapy has become a widely used treatment despite a lack of robust efficacy data to support its use. The long-term outcome of treatment is also unclear. A randomised comparison of two different methods of irrigation (high- and low-volume) will provide valuable evidence of superiority of one system over the other, as well as providing efficacy data for the treatment as a whole. METHODS Participants will be recruited based on predetermined eligibility criteria. Following informed consent, they will be randomised to either high-volume (HV) or low-volume (LV) irrigation and undergo standardised radiological and physiological investigations. Following training, they will commence home irrigation with the allocated device. Data will be collected at 1, 3, 6 and 12 months according to a standardised outcomes framework. The primary outcome is PAC-QOL, measured at 3 months. The study is powered to detect a 10% difference in outcome between systems at 3 months; this means that 300 patients will need to be recruited. DISCUSSION This study will be the first randomised comparison of two different methods of trans-anal irrigation. It will also be the largest prospective study of CC patients treated with irrigation. It will provide evidence for the effectiveness of irrigation in the treatment of CC, as well as the comparative effectiveness of the two methods. This will enable more cost-effective and evidence-based use of irrigation. Also, the results will be combined with the other studies in the CapaCiTY programme to generate an evidence-based treatment algorithm for CC in adults. TRIAL REGISTRATION ISRCTN, identifier: ISRCTN11093872 . Registered on 11 November 2015. Trial not retrospectively registered. Protocol version 3 (22 January 2016).
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Affiliation(s)
| | - Helen Close
- School of Medicine, Pharmacy and Health, Durham University Queen’s Campus, University Boulevard, Thornaby, Stockton-on-Tees, TS17 6BH UK
| | - James Mason
- WMS – Population Evidence and Technologies, University of Warwick, Coventry, CV4 7AL UK
| | - Shiva Taheri
- Blizard Institute, Queen Mary University of London, 1st Floor Abernethy Building, 2 Newark St, London, E1 2AT UK
| | - Natasha Stevens
- Blizard Institute, Queen Mary University of London, 1st Floor Abernethy Building, 2 Newark St, London, E1 2AT UK
| | - Sandra Eldridge
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Yvonne Carter Building, 58 Turner St., London, E1 2AB UK
| | - Christine Norton
- Kings College London, 2.25 James Clerk Maxwell Building, 57 Waterloo Road, London, SE1 8WA UK
| | - Charles Knowles
- Blizard Institute, Queen Mary University of London, 1st Floor Abernethy Building, 2 Newark St, London, E1 2AT UK
| | - Yan Yiannakou
- University Hospital of North Durham, North Road, Durham, DH1 5TW UK
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80
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Norton C, Emmanuel A, Stevens N, Scott SM, Grossi U, Bannister S, Eldridge S, Mason JM, Knowles CH. Habit training versus habit training with direct visual biofeedback in adults with chronic constipation: study protocol for a randomised controlled trial. Trials 2017; 18:139. [PMID: 28340625 PMCID: PMC5366116 DOI: 10.1186/s13063-017-1880-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 03/08/2017] [Indexed: 02/08/2023] Open
Abstract
Background Constipation affects up to 20% of adults. Chronic constipation (CC) affects 1–2% of adults. Patient dissatisfaction is high; nearly 80% feel that laxative therapy is unsatisfactory and symptoms have significant impact on quality of life. There is uncertainty about the value of specialist investigations and whether equipment-intensive therapies using biofeedback confer additional benefit when compared with specialist conservative advice. Methods/design A three-arm, parallel-group, multicentre randomised controlled trial. Objectives: to determine whether standardised specialist-led habit training plus pelvic floor retraining using computerised biofeedback is more clinically effective than standardised specialist-led habit training alone; to determine whether outcomes are improved by stratification based on prior investigation of anorectal and colonic pathophysiology. Primary outcome measure is response to treatment, defined as a 0.4-point (10% of scale) or greater reduction in Patient Assessment of Constipation–Quality of Life (PAC-QOL) score 6 months after the end of treatment. Other outcomes up to 12 months include symptoms, quality of life, health economics, psychological health and qualitative experience. Hypotheses: (1) habit training (HT) with computer-assisted direct visual biofeedback (HTBF) results in an average reduction in PAC-QOL score of 0.4 points at 6 months compared to HT alone in unselected adults with CC, (2) stratification to either HT or HTBF informed by pathophysiological investigation (INVEST) results in an average 0.4-point reduction in PAC-QOL score at 6 months compared with treatment not directed by investigations (No-INVEST). Inclusion: chronic constipation in adults (aged 18–70 years) defined by self-reported symptom duration of more than 6 months; failure of previous laxatives or prokinetics and diet and lifestyle modifications. Consenting participants (n = 394) will be randomised to one of three arms in an allocation ratio of 3:3:2: [1] habit training, [2] habit training and biofeedback or [3] investigation-led allocation to one of these arms. Analysis will be on an intention-to-treat basis. Discussion This trial has the potential to answer some of the major outstanding questions in the management of chronic constipation, including whether costly invasive tests are warranted and whether computer-assisted direct visual biofeedback confers additional benefit to well-managed specialist advice alone. Trial registration International Standard Randomised Controlled Trial Number: ISRCTN11791740. Registered on 16 July 2015. Electronic supplementary material The online version of this article (doi:10.1186/s13063-017-1880-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Anton Emmanuel
- University College Hospital, 235 Euston Road, London, NW1 2BU, UK
| | - Natasha Stevens
- Blizard Institute, Queen Mary University of London, 2 Newark Street, London, E1 2AT, UK
| | - S Mark Scott
- Blizard Institute, Queen Mary University of London, 2 Newark Street, London, E1 2AT, UK
| | - Ugo Grossi
- Blizard Institute, Queen Mary University of London, 2 Newark Street, London, E1 2AT, UK
| | - Sybil Bannister
- Blizard Institute, Queen Mary University of London, 2 Newark Street, London, E1 2AT, UK
| | - Sandra Eldridge
- Blizard Institute, Queen Mary University of London, 4 Newark Street, London, E1 2AT, UK
| | - James M Mason
- Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
| | - Charles H Knowles
- Blizard Institute, Queen Mary University of London, 2 Newark Street, London, E1 2AT, UK
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81
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Mazor Y, Hansen R, Prott G, Kellow J, Malcolm A. The importance of a high rectal pressure on strain in constipated patients: implications for biofeedback therapy. Neurogastroenterol Motil 2017; 29. [PMID: 27647462 DOI: 10.1111/nmo.12940] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 08/09/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND A subset of patients with chronic constipation display a relatively high manometric rectal pressure on strain. We hypothesized that these patients represent a unique phenotype of functional defecatory disorder (FDD) and would benefit from undergoing anorectal biofeedback (BF). METHODS Of 138 consecutive patients with chronic constipation and symptoms of FDD, 19 were defined as having a high rectal pressure on strain, using a statistically derived cut-off of 78 mm Hg. This subset was compared with remaining patients in regard to baseline clinical profile and physiology, and outcome of BF. KEY RESULTS There was a greater representation of males in the high rectal pressure group. Their constipation score, impact of bowel dysfunction on quality of life and satisfaction with bowel habits did not differ from the remaining patients. Eighty-four percent of patients in the high group successfully expelled the rectal balloon and 95% displayed paradoxical anal contraction on strain (P<.05 compared with the remaining patients). Following BF, 89% of patients in the high group reduced their rectal pressure to normal. End of BF treatment outcomes improved significantly, and to a similar degree, in both groups. CONCLUSIONS & INFERENCES We have identified a subgroup of patients with dyssynergic symptoms but without a formal Rome III diagnosis of FDD, who were characterized by a high straining rectal pressure. Although these patients displayed some physiological differences to the patients with lower straining rectal pressure, they suffer similarly. Importantly, we have shown that these patients can respond favorably to anorectal BF.
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Affiliation(s)
- Y Mazor
- Neurogastroenterology Unit, Royal North Shore Hospital, University of Sydney, St Leonards, NSW, Australia
| | - R Hansen
- Neurogastroenterology Unit, Royal North Shore Hospital, University of Sydney, St Leonards, NSW, Australia
| | - G Prott
- Neurogastroenterology Unit, Royal North Shore Hospital, University of Sydney, St Leonards, NSW, Australia
| | - J Kellow
- Neurogastroenterology Unit, Royal North Shore Hospital, University of Sydney, St Leonards, NSW, Australia
| | - A Malcolm
- Neurogastroenterology Unit, Royal North Shore Hospital, University of Sydney, St Leonards, NSW, Australia
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82
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Chakraborty S, Feuerhak KJ, Zinsmeister AR, Bharucha AE. Reproducibility of high-definition (3D) manometry and its agreement with high-resolution (2D) manometry in women with fecal incontinence. Neurogastroenterol Motil 2017; 29:10.1111/nmo.12950. [PMID: 27696628 PMCID: PMC5329128 DOI: 10.1111/nmo.12950] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 08/23/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND While widely used in clinical practice, the reproducibility of high-definition anorectal manometry (HD-ARM) remains unclear. We evaluated the intra-individual reproducibility of HD-ARM and compared pressures measured with HD-ARM and high-resolution anorectal manometry (HR-ARM). METHODS Thirty-six women with fecal incontinence had an initial HD-ARM (HD-ARM1); on the same day, after randomization, 21 had a second (HD-ARM2). Sixteen women had a third (HD-ARM3) 4 weeks later. Twenty-five had also been evaluated by HR-ARM previously. Rectoanal pressures were assessed at rest, during squeeze and simulated evacuation. Concordance among pressures was assessed with Lin's concordance correlation coefficient (CCC). KEY RESULTS Anal resting and squeeze pressures measured with HD-ARM were reproducible on the same and different days; for average resting pressures of HD-ARM1 vs HD-ARM2, CCC = 0.73 (95% confidence interval [CI]: 0.53-0.94), and for HD-ARM1 vs HD-ARM3, CCC = 0.60 (95% CI: 0.28-0.93). For maximum squeeze pressures of HD-ARM1 vs HD-ARM2, CCC = 0.86 (95% CI: 0.75-0.97), and for HD-ARM1 vs HD-ARM3, CCC = 0.56 (95% CI: 0.21-0.91). The rectoanal gradient during evacuation was significantly concordant between HD-ARM1 and HD-ARM2 but not HD-ARM1 and HD-ARM3. Resting (CCC = 0.38 [95% CI: 0.14-0.62]) and squeeze pressures (CCC = 0.73 [95% CI: 0.57-0.89]) measured with HD-ARM1 and HR-ARM were also concordant. CONCLUSIONS & INFERENCES Among women with fecal incontinence, measurements with HD-ARM were reproducible on the same (anal resting and squeeze pressures and rectoanal gradient during evacuation) and different days (anal resting and squeeze pressures) and correlated with HR-ARM measurements. These findings support use of HD-ARM and HR-ARM for longitudinal assessments of anal resting and squeeze pressures.
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Affiliation(s)
- Subhankar Chakraborty
- Clinical and Enteric Neuroscience Translational and Epidemiological Research Program (C.E.N.T.E.R.), Mayo Clinic, Rochester, MN, 55905 USA
| | - Kelly J. Feuerhak
- Clinical and Enteric Neuroscience Translational and Epidemiological Research Program (C.E.N.T.E.R.), Mayo Clinic, Rochester, MN, 55905 USA
| | - Alan R. Zinsmeister
- Division of Biomedical Statistics and informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, 55905 USA
| | - Adil E. Bharucha
- Clinical and Enteric Neuroscience Translational and Epidemiological Research Program (C.E.N.T.E.R.), Mayo Clinic, Rochester, MN, 55905 USA
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83
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Prichard DO, Lee T, Parthasarathy G, Fletcher JG, Zinsmeister AR, Bharucha AE. High-resolution Anorectal Manometry for Identifying Defecatory Disorders and Rectal Structural Abnormalities in Women. Clin Gastroenterol Hepatol 2017; 15:412-420. [PMID: 27720913 PMCID: PMC5316318 DOI: 10.1016/j.cgh.2016.09.154] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/19/2016] [Accepted: 09/30/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Contrary to conventional wisdom, the rectoanal gradient during evacuation is negative in many healthy people, undermining the utility of anorectal high-resolution manometry (HRM) for diagnosing defecatory disorders. We aimed to compare HRM and magnetic resonance imaging (MRI) for assessing rectal evacuation and structural abnormalities. METHODS We performed a retrospective analysis of 118 patients (all female; 51 with constipation, 48 with fecal incontinence, and 19 with rectal prolapse; age, 53 ± 1 years) assessed by HRM, the rectal balloon expulsion test (BET), and MRI at Mayo Clinic, Rochester, Minnesota, from February 2011 through March 2013. Thirty healthy asymptomatic women (age, 37 ± 2 years) served as controls. We used principal components analysis of HRM variables to identify rectoanal pressure patterns associated with rectal prolapse and phenotypes of patients with prolapse. RESULTS Compared with patients with normal findings from the rectal BET, patients with an abnormal BET had lower median rectal pressure (36 vs 22 mm Hg, P = .002), a more negative median rectoanal gradient (-6 vs -29 mm Hg, P = .006) during evacuation, and a lower proportion of evacuation on the basis of MRI analysis (median of 40% vs 80%, P < .0001). A score derived from rectal pressure and anorectal descent during evacuation and a patulous anal canal was associated (P = .005) with large rectoceles (3 cm or larger). A principal component (PC) logistic model discriminated between patients with and without prolapse with 96% accuracy. Among patients with prolapse, there were 2 phenotypes, which were characterized by high (PC1) or low (PC2) anal pressures at rest and squeeze along with higher rectal and anal pressures (PC1) or a higher rectoanal gradient during evacuation (PC2). CONCLUSIONS In a retrospective analysis of patients assessed by HRM, measurements of rectal evacuation by anorectal HRM, BET, and MRI were correlated. HRM alone and together with anorectal descent during evacuation may identify rectal prolapse and large rectoceles, respectively, and also identify unique phenotypes of rectal prolapse.
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Affiliation(s)
- David O Prichard
- Clinical Enteric Neuroscience Translational and Epidemiological Research Program, Mayo Clinic, Rochester, Minnesota
| | - Taehee Lee
- Clinical Enteric Neuroscience Translational and Epidemiological Research Program, Mayo Clinic, Rochester, Minnesota
| | - Gopanandan Parthasarathy
- Clinical Enteric Neuroscience Translational and Epidemiological Research Program, Mayo Clinic, Rochester, Minnesota
| | | | - Alan R Zinsmeister
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Adil E Bharucha
- Clinical Enteric Neuroscience Translational and Epidemiological Research Program, Mayo Clinic, Rochester, Minnesota.
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Hsu CS, Liu TT, Yi CH, Lei WY, Hung JS, Chen CL. Utility of balloon expulsion test in patients with constipation: Preliminary results in a single center. ADVANCES IN DIGESTIVE MEDICINE 2016. [DOI: 10.1016/j.aidm.2016.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Noelting J, Eaton JE, Choung RS, Zinsmeister AR, Locke GR, Bharucha AE. The incidence rate and characteristics of clinically diagnosed defecatory disorders in the community. Neurogastroenterol Motil 2016; 28:1690-1697. [PMID: 27254309 PMCID: PMC5083162 DOI: 10.1111/nmo.12868] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 05/05/2016] [Indexed: 01/24/2023]
Abstract
BACKGROUND Defecatory disorders (DD) are defined by clinical and objective features of impaired rectal evacuation. The epidemiology of DD in the population is unknown, partly because many constipated patients do not undergo anorectal tests. Our objectives were to estimate the incidence rate and clinical features of DD in the community. METHODS We reviewed the medical records of all patients older than 16 years in Olmsted County, MN, who had constipation and underwent anorectal manometry from 1999 through 2008. Criteria for diagnosing DD were constipation for 6 months or longer and one of the following: (i) abnormal rectal balloon expulsion test; (ii) reduced or increased perineal descent; or (iii) two or more abnormal features with defecography or surface electromyography. KEY RESULTS Of 11 112 constipated patients, 516 had undergone anorectal tests; 245 of these (209 women, 36 men) had a DD. The mean (±SD) age at diagnosis was 44 years (±18) among women and 49 years (±19) among men. The overall age- and sex-adjusted incidence rate per 100 000 person-years was 19.3 (95% CI: 16.8-21.8). The age-adjusted incidence per 100 000 person-years was greater (p < 0.0001) in women (31.8, 95% CI: 27.4-36.1) than in men (6.6, 95% CI: 4.4-8.9). Prior to the diagnosis of DD, nearly 30% of patients had irritable bowel syndrome (IBS), 48% had a psychiatric diagnosis, 18% had a history of abuse, and 21% reported urinary and/or fecal incontinence. CONCLUSIONS & INFERENCES Among constipated patients, DD are fourfold more common in women than men and often associated with IBS and psychiatric diagnoses.
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Affiliation(s)
- Jessica Noelting
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - John E. Eaton
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Rok Seon Choung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Alan. R. Zinsmeister
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research Mayo Clinic, Rochester, Minnesota USA
| | - G. Richard Locke
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Adil E. Bharucha
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Caetano AC, Santa-Cruz A, Rolanda C. Digital Rectal Examination and Balloon Expulsion Test in the Study of Defecatory Disorders: Are They Suitable as Screening or Excluding Tests? Can J Gastroenterol Hepatol 2016; 2016:8654314. [PMID: 27847802 PMCID: PMC5101368 DOI: 10.1155/2016/8654314] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 09/22/2016] [Indexed: 01/29/2023] Open
Abstract
Background. Rome III criteria add physiological criteria to symptom-based criteria of chronic constipation (CC) for the diagnosis of defecatory disorders (DD). However, a gold-standard test is still lacking and physiological examination is expensive and time-consuming. Aim. Evaluate the usefulness of two low-cost tests-digital rectal examination (DRE) and balloon expulsion test (BET)-as screening or excluding tests of DD. Methods. We performed a systematic search in PUBMED and MEDLINE. We selected studies where constipated patients were evaluated by DRE or BET. Heterogeneity was assessed and random effect models were used to calculate the sensitivity, specificity, and negative predictive value (NPV) of the DRE and the BET. Results. Thirteen studies evaluating BET and four studies evaluating DRE (2329 patients) were selected. High heterogeneity (I2 > 80%) among studies was demonstrated. The studies evaluating the BET showed a sensitivity and specificity of 67% and 80%, respectively. Regarding the DRE, a sensitivity of 80% and specificity of 84% were calculated. NPV of 72% for the BET and NPV of 64% for the DRE were estimated. The sensitivity and specificity were similar when we restrict the analysis to studies using Rome criteria to define CC. The BET seems to perform better when a cut-off time of 2 minutes is used and when it is compared with a combination of physiological tests. Considering the DRE, strict criteria seem to improve the sensitivity but not the specificity of the test. Conclusion. Neither of the low-cost tests seems suitable for screening or excluding DD.
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Affiliation(s)
- Ana C. Caetano
- Department of Gastroenterology, Braga Hospital, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Guimarães, Braga, Portugal
| | - André Santa-Cruz
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Guimarães, Braga, Portugal
- Department of Internal Medicine, Braga Hospital, Braga, Portugal
| | - Carla Rolanda
- Department of Gastroenterology, Braga Hospital, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Guimarães, Braga, Portugal
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87
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Palit S, Thin N, Knowles CH, Lunniss PJ, Bharucha AE, Scott SM. Diagnostic disagreement between tests of evacuatory function: a prospective study of 100 constipated patients. Neurogastroenterol Motil 2016; 28:1589-98. [PMID: 27154577 DOI: 10.1111/nmo.12859] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 04/21/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Evacuatory dysfunction (ED) is a common cause of constipation and may be sub-classified on the basis of specialist tests. Such tests may guide treatment e.g., biofeedback therapy for 'functional' defecatory disorders (FDD). However, there is no gold standard, and prior studies have not prospectively and systematically compared all tests that are used to diagnose forms of ED. METHODS One hundred consecutive patients fulfilling Rome III criteria for functional constipation underwent four tests: expulsion of a rectal balloon distended to 50 mL (BE50 ) or until patients experienced the desire to defecate (BEDDV ), evacuation proctography (EP) and anorectal manometry. Yields and agreements between tests for the diagnosis of ED and FDD were assessed. KEY RESULTS Positive diagnostic yields for ED were: BEDDV 18%, BE50 31%, EP 38% and anorectal manometry (ARM) 68%. Agreement was substantial between the two balloon tests (k = 0.66), only fair between proctography and BE50 (k = 0.27), poor between manometry and proctography (k = 0.01), and there was no agreement between the balloon tests and manometry (k = -0.07 for both BE50 and BEDDV ). For the diagnosis of FDD, there was only fair agreement between ARM and EP (k = 0.23), ARM ± BE50 and EP (k = 0.18), ARM and EP ± BE50 (k = 0.30) and ARM ± BE50 and EP ± BE50 (k = 0.23). CONCLUSIONS & INFERENCES There is considerable disagreement between the results of various tests used to diagnose ED and FDD. This highlights the need for a reappraisal of both diagnostic criteria, and what represents the 'gold standard' investigation.
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Affiliation(s)
- S Palit
- National Centre for Bowel Research and Surgical Innovation (NCBRSI) and GI Physiology Unit (GIPU), Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - N Thin
- National Centre for Bowel Research and Surgical Innovation (NCBRSI) and GI Physiology Unit (GIPU), Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - C H Knowles
- National Centre for Bowel Research and Surgical Innovation (NCBRSI) and GI Physiology Unit (GIPU), Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - P J Lunniss
- National Centre for Bowel Research and Surgical Innovation (NCBRSI) and GI Physiology Unit (GIPU), Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - A E Bharucha
- Division of Gastroenterology and Hepatology, Clinical Enteric Neuroscience Translational and Epidemiological Research Program, Mayo Clinic and Mayo Foundation, Rochester, MN, USA
| | - S M Scott
- National Centre for Bowel Research and Surgical Innovation (NCBRSI) and GI Physiology Unit (GIPU), Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
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Parthasarathy G, McMaster J, Feuerhak K, Zinsmeister AR, Bharucha AE. Determinants and clinical impact of pressure drift in manoscan anorectal high resolution manometry system. Neurogastroenterol Motil 2016; 28:1433-7. [PMID: 27061208 PMCID: PMC5002233 DOI: 10.1111/nmo.12830] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 03/08/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND Pressure drift (PD), resulting from differences between room and body temperature, reduces the accuracy of pressure measurements with the Manoscan high resolution manometry (HRM) system. Our aims were to assess PD during anorectal HRM. METHODS Defined as the residual pressure measured immediately after the catheter was removed, PD was calculated for each sensor and averaged across all 12 sensors in 454 anorectal consecutive studies recorded with 3 HRM catheters. The relationship between PD and study duration, number of prior uses of a catheter, and peak and average pressure exposure during a study were evaluated. The correction of PD with a software algorithm (thermal compensation) was evaluated in 76 studies where the most distal sensor was outside the body. KEY RESULTS The PD varied among sensors and across catheters. The average PD (7.3 ± 0.2 mmHg) was significantly greater for newer catheters, during longer studies, or when sensors were exposed to higher pressures. Together, these factors explained 81% of the variance in overall PD. After thermal compensation, the uncorrected median PD for the most distal sensor was 2.5-5 mmHg over the study duration. Correcting this changed the interpretation (e.g., as abnormal instead of normal) of at least 1 anorectal parameter in eight of 76 studies. CONCLUSIONS & INFERENCES During anorectal HRM, PD declines with catheter use and is greater for newer catheters, when sensors are exposed to higher pressures, and for studies of longer duration. While PD is partially corrected with thermal compensation algorithms, the impact on interpretation is modest.
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Affiliation(s)
- Gopanandan Parthasarathy
- Clinical Enteric Neuroscience Translational and Epidemiological Research (C.E.N.T.E.R.) Program, Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Jordan McMaster
- Clinical Enteric Neuroscience Translational and Epidemiological Research (C.E.N.T.E.R.) Program, Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Kelly Feuerhak
- Clinical Enteric Neuroscience Translational and Epidemiological Research (C.E.N.T.E.R.) Program, Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Alan R. Zinsmeister
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Adil E. Bharucha
- Clinical Enteric Neuroscience Translational and Epidemiological Research (C.E.N.T.E.R.) Program, Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
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89
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Rao SSC, Patcharatrakul T. Diagnosis and Treatment of Dyssynergic Defecation. J Neurogastroenterol Motil 2016; 22:423-35. [PMID: 27270989 PMCID: PMC4930297 DOI: 10.5056/jnm16060] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Accepted: 04/27/2016] [Indexed: 12/11/2022] Open
Abstract
Dyssynergic defecation is common and affects up to one half of patients with chronic constipation. This acquired behavioral problem is due to the inability to coordinate the abdominal and pelvic floor muscles to evacuate stools. A detailed history, prospective stool diaries, and a careful digital rectal examination will not only identify the nature of bowel dysfunction, but also raise the index of suspicion for this evacuation disorder. Anorectal physiology tests and balloon expulsion test are essential for a diagnosis. Newer techniques such as high-resolution manometry and magnetic resonance defecography can provide mechanistic insights. Recently, randomized controlled trials have shown that biofeedback therapy is more effective than laxatives and other modalities, both in the short term and long term, without side effects. Also, symptom improvements correlated with changes in underlying pathophysiology. Biofeedback therapy has been recommended as the first-line of treatment for dyssynergic defecation. Here, we provide an overview of the burden of illness and pathophysiology of dyssynergic defecation, and how to diagnose and treat this condition with biofeedback therapy.
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Affiliation(s)
- Satish S C Rao
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, Georgia, USA
| | - Tanisa Patcharatrakul
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, Georgia, USA.,Division of Gastroenterology, Department of Medicine, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
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90
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Harris LA, Umar SB, Baffy N, Heitkemper MM. Irritable Bowel Syndrome and Female Patients. Gastroenterol Clin North Am 2016; 45:179-204. [PMID: 27261893 DOI: 10.1016/j.gtc.2016.02.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Irritable bowel syndrome is probably the most common functional gastrointestinal disorder and is characterized by abdominal pain along with altered bowel function. It is a disorder of female predominance. This article focuses on how being female influences the pathophysiology, diagnosis, management, and treatment of this common disorder and discusses the evidence and important controversies related to these areas.
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Affiliation(s)
- Lucinda A Harris
- Division of Gastroenterology & Hepatology, Mayo Clinic, 13400 East Shea Boulevard, Scottsdale, AZ 85259, USA.
| | - Sarah B Umar
- Division of Gastroenterology & Hepatology, Mayo Clinic, 13400 East Shea Boulevard, Scottsdale, AZ 85259, USA
| | - Noemi Baffy
- Division of Gastroenterology & Hepatology, Mayo Clinic, 13400 East Shea Boulevard, Scottsdale, AZ 85259, USA
| | - Margaret M Heitkemper
- School of Nursing, Biobehavioral Nursing and Health Systems, University of Washington, Seattle, WA, USA
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91
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Rao SS, Bharucha AE, Chiarioni G, Felt-Bersma R, Knowles C, Malcolm A, Wald A. Functional Anorectal Disorders. Gastroenterology 2016; 150:S0016-5085(16)00175-X. [PMID: 27144630 PMCID: PMC5035713 DOI: 10.1053/j.gastro.2016.02.009 10.1053/j.gastro.2016.02.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 02/09/2016] [Indexed: 01/11/2024]
Abstract
This report defines criteria and reviews the epidemiology, pathophysiology, and management of common anorectal disorders: fecal incontinence (FI), functional anorectal pain and functional defecation disorders. FI is defined as the recurrent uncontrolled passage of fecal material for at least 3 months. The clinical features of FI are useful for guiding diagnostic testing and therapy. Anorectal manometry and imaging are useful for evaluating anal and pelvic floor structure and function. Education, antidiarrheals and biofeedback therapy are the mainstay of management; surgery may be useful in refractory cases. Functional anorectal pain syndromes are defined by clinical features and categorized into three subtypes. In proctalgia fugax, the pain is typically fleeting and lasts for seconds to minutes. In levator ani syndrome (LAS) and unspecified anorectal pain the pain lasts more than 30 minutes, but in LAS there is puborectalis tenderness. Functional defecation disorders are defined by >2 symptoms of chronic constipation or irritable bowel syndrome with constipation, and with >2 features of impaired evacuation i.e., abnormal evacuation pattern on manometry, abnormal balloon expulsion test or impaired rectal evacuation by imaging. It includes two subtypes; dyssynergic defecation and inadequate defecatory propulsion. Pelvic floor biofeedback therapy is effective for treating LAS and defecatory disorders.
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Rao SS, Bharucha AE, Chiarioni G, Felt-Bersma R, Knowles C, Malcolm A, Wald A. Functional Anorectal Disorders. Gastroenterology 2016; 150:S0016-5085(16)00175-X. [PMID: 27144630 PMCID: PMC5035713 DOI: 10.1053/j.gastro.2016.02.009] [Citation(s) in RCA: 278] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 02/09/2016] [Indexed: 12/12/2022]
Abstract
This report defines criteria and reviews the epidemiology, pathophysiology, and management of common anorectal disorders: fecal incontinence (FI), functional anorectal pain and functional defecation disorders. FI is defined as the recurrent uncontrolled passage of fecal material for at least 3 months. The clinical features of FI are useful for guiding diagnostic testing and therapy. Anorectal manometry and imaging are useful for evaluating anal and pelvic floor structure and function. Education, antidiarrheals and biofeedback therapy are the mainstay of management; surgery may be useful in refractory cases. Functional anorectal pain syndromes are defined by clinical features and categorized into three subtypes. In proctalgia fugax, the pain is typically fleeting and lasts for seconds to minutes. In levator ani syndrome (LAS) and unspecified anorectal pain the pain lasts more than 30 minutes, but in LAS there is puborectalis tenderness. Functional defecation disorders are defined by >2 symptoms of chronic constipation or irritable bowel syndrome with constipation, and with >2 features of impaired evacuation i.e., abnormal evacuation pattern on manometry, abnormal balloon expulsion test or impaired rectal evacuation by imaging. It includes two subtypes; dyssynergic defecation and inadequate defecatory propulsion. Pelvic floor biofeedback therapy is effective for treating LAS and defecatory disorders.
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93
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Grossi U, Carrington EV, Bharucha AE, Horrocks EJ, Scott SM, Knowles CH. Diagnostic accuracy study of anorectal manometry for diagnosis of dyssynergic defecation. Gut 2016; 65:447-55. [PMID: 25765461 PMCID: PMC4686376 DOI: 10.1136/gutjnl-2014-308835] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 02/18/2015] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The diagnostic accuracy of anorectal manometry (AM), which is necessary to diagnose functional defecatory disorders (FDD), is unknown. Using blinded analysis and standardised reporting of diagnostic accuracy, we evaluated whether AM could discriminate between asymptomatic controls and patients with functional constipation (FC). DESIGN Derived line plots of anorectal pressure profiles during simulated defecation were independently analysed in random order by three expert observers blinded to health status in 85 women with FC and 85 age-matched asymptomatic healthy volunteers (HV). Using accepted criteria, these pressure profiles were characterised as normal (ie, increased rectal pressure coordinated with anal relaxation) or types I-IV dyssynergia. Interobserver agreement and diagnostic accuracy were determined. RESULTS Blinded consensus-based assessment disclosed a normal pattern in 16/170 (9%) of all participants and only 11/85 (13%) HV. The combined frequency of dyssynergic patterns (I-IV) was very similar in FC (80/85 (94%)) and HV (74/85 (87%)). Type I dyssynergia ('paradoxical' contraction) was less prevalent in FC (17/85 (20%) than in HV (31/85 (36.5%), p=0.03). After statistical correction, only type IV dyssynergia was moderately useful for discriminating between FC (39/85 (46%)) and HV (17/85 (20%)) (p=0.001, positive predictive value=70.0%, positive likelihood ratio=2.3). Interobserver agreement was substantial or moderate for identifying a normal pattern, dyssynergia types I and IV, and FDD, and fair for types II and III. CONCLUSIONS While the interpretation of AM patterns is reproducible, nearly 90% of HV have a pattern that is currently regarded as 'abnormal' by AM. Hence, AM is of limited utility for distinguishing between FC and HV.
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Affiliation(s)
- Ugo Grossi
- National Centre for Bowel Research and Surgical Innovation and GI Physiology Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Emma V Carrington
- National Centre for Bowel Research and Surgical Innovation and GI Physiology Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Adil E Bharucha
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Emma J Horrocks
- National Centre for Bowel Research and Surgical Innovation and GI Physiology Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - S Mark Scott
- National Centre for Bowel Research and Surgical Innovation and GI Physiology Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Charles H Knowles
- National Centre for Bowel Research and Surgical Innovation and GI Physiology Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
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Abstract
PURPOSE OF REVIEW The past few years have seen an increase in the number of research and clinical groups around the world using high-resolution manometry (HRM) to record contractile activity in the anorectum and colon. Yet despite the uptake and growing number of publications, the clinical utility and potential advantages over traditional manometry remain undetermined. RECENT FINDINGS Nearly all of the publications in the field of anorectal and colonic HRM have been published within the last 3 years. These studies have included some data on normal ranges in healthy adults, and abnormalities in patient groups with constipation or fecal incontinence, anal fissure, perineal descent, rectal cancer, and Hirschsprung's disease. Most of the studies have been conducted on adults, with only three published studies in pediatric populations. Very few studies have attempted to show advantages of HRM over traditional manometry SUMMARY High-resolution anorectal and colonic manometry provide a more comprehensive characterization of motility patterns and coordinated activity; this may help to improve our understanding of the normal physiology and pathophysiology in these regions. To date, however, no published study has conclusively demonstrated a clinical, diagnostic, or interventional advantage over conventional manometry.
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95
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Lee TH, Bharucha AE. How to Perform and Interpret a High-resolution Anorectal Manometry Test. J Neurogastroenterol Motil 2015; 22:46-59. [PMID: 26717931 PMCID: PMC4699721 DOI: 10.5056/jnm15168] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 11/20/2015] [Accepted: 12/11/2015] [Indexed: 12/13/2022] Open
Abstract
High-resolution anorectal manometry (HR-ARM) and high-definition anorectal manometry (HD-ARM) catheters have closely spaced water-perfused or solid state circumferentially-oriented pressure sensors that provide much better spatiotemporal pressurization than non-high resolution catheters. This is a comprehensive review of HR-ARM and HD-ARM anorectal manometry catheter systems, the methods for conducting, analyzing, and interpreting HR-ARM and HD-ARM, and a comparison of HR-ARM with non-high resolution anorectal manometry. Compared to non-high resolution techniques, HR-ARM and HD-ARM studies take less time and are easier to interpret. However, HR-ARM and HD-ARM catheters are more expensive and fragile and have a shorter lifespan. Further studies are needed to refine our understanding of normal values and to rigorously evaluate the incremental clinical utility of HR-ARM or HD-ARM compared to non-high resolution manometry.
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Affiliation(s)
- Tae Hee Lee
- Institute for Digestive Research, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Adil E Bharucha
- Clinical Enteric Neuroscience Translational and Epidemiological Research, Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA
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96
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Dinning PG, Carrington EV, Scott SM. The use of colonic and anorectal high-resolution manometry and its place in clinical work and in research. Neurogastroenterol Motil 2015. [PMID: 26224550 DOI: 10.1111/nmo.12632] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND In the esophagus, high-resolution manometry (HRM) has become a standard diagnostic tool in the investigation of suspected motility disorders. However, at the opposite end of the digestive tract (i.e., the colon and anorectum), the use of HRM still remains in its infancy, with relatively few published studies in the scientific literature. Further, the clinical utility of those studies that have been performed is largely undetermined. PURPOSE This review assesses all of the HRM studies published to date from both the colon and anorectum, explores the catheter types used, and attempts to determine the worth of HRM over traditional 'low-resolution' recordings from the same regions. Ultimately, this review addresses whether HRM currently provides information that will benefit patient diagnosis and treatment.
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Affiliation(s)
- P G Dinning
- Department of Surgery and Gastroenterology, Flinders Medical Centre, Flinders University, Adelaide, SA, Australia
| | - E V Carrington
- National Centre for Bowel Research and Surgical Innovation and the GI Physiology Unit, Queen Mary University of London, London, UK
| | - S M Scott
- National Centre for Bowel Research and Surgical Innovation and the GI Physiology Unit, Queen Mary University of London, London, UK
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97
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Staller K, Barshop K, Kuo B, Ananthakrishnan AN. Resting anal pressure, not outlet obstruction or transit, predicts healthcare utilization in chronic constipation: a retrospective cohort analysis. Neurogastroenterol Motil 2015; 27:1378-88. [PMID: 26172284 PMCID: PMC4584201 DOI: 10.1111/nmo.12628] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 06/15/2015] [Indexed: 12/19/2022]
Abstract
BACKGROUND Chronic constipation is common and exerts a considerable burden on health-related quality of life and healthcare resource utilization. Anorectal manometry (ARM) and colonic transit testing have allowed classification of subtypes of constipation, raising promise of targeted treatments. There has been limited study of the correlation between physiological parameters and healthcare utilization. METHODS All patients undergoing ARM and colonic transit testing for chronic constipation at two tertiary care centers from 2000 to 2014 were included in this retrospective study. Our primary outcomes included number of constipation-related and gastroenterology visits per year. Multivariate linear regression adjusting for confounders defined independent effect of measures of colonic and anorectal function on healthcare utilization. KEY RESULTS Our study included 612 patients with chronic constipation. More than 50% (n = 333) of patients had outlet obstruction by means of balloon expulsion testing and 43.5% (n = 266) had slow colonic transit. On unadjusted analysis, outlet obstruction (1.98 vs 1.68), slow transit (2.40 vs 2.07) and high resting anal pressure (2.16 vs 1.76) were all associated with greater constipation-related visits/year compared to patients without each of those parameters (p < 0.05 for all). Outlet obstruction and high resting anal pressure were also associated with greater number of gastroenterology visits/year. After multivariate adjustment, high resting anal pressure was the only independent predictor of increased constipation-related visits/year (p = 0.02) and gastroenterology visits/year (p = 0.04). CONCLUSIONS & INFERENCES Among patients with chronic constipation, high resting anal pressure, rather than outlet obstruction or slow transit, predicts healthcare resource utilization.
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Affiliation(s)
- Kyle Staller
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | | | - Braden Kuo
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Ashwin N Ananthakrishnan
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
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Prichard D, Harvey DM, Fletcher JG, Zinsmeister AR, Bharucha AE. Relationship Among Anal Sphincter Injury, Patulous Anal Canal, and Anal Pressures in Patients With Anorectal Disorders. Clin Gastroenterol Hepatol 2015; 13:1793-1800.e1. [PMID: 25869638 PMCID: PMC4575824 DOI: 10.1016/j.cgh.2015.03.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 02/04/2015] [Accepted: 03/16/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The anal sphincters and puborectalis are imaged routinely with an endoanal magnetic resonance imaging (MRI) coil, which does not assess co-aptation of the anal canal at rest. By using a MRI torso coil, we identified a patulous anal canal in some patients with anorectal disorders. We aimed to evaluate the relationship between anal sphincter and puborectalis injury, a patulous anal canal, and anal pressures. METHODS We performed a retrospective analysis of data from 119 patients who underwent MRI and manometry analysis of anal anatomy and pressures, respectively, from February 2011 through March 2013 at the Mayo Clinic. Anal pressures were determined by high-resolution manometry, anal sphincter and puborectalis injury was determined by endoanal MRI, and anal canal integrity was determined by torso MRI. Associations between manometric and anatomic parameters were evaluated with univariate and multivariate analyses. RESULTS Fecal incontinence (55 patients; 46%) and constipation (36 patients; 30%) were the main indications for testing; 49 patients (41%) had a patulous anal canal, which was associated with injury to more than 1 muscle (all P ≤ .001), and internal sphincter (P < .01), but not puborectalis (P = .09) or external sphincter (P = .06), injury. Internal (P < .01) and external sphincter injury (P = .02) and a patulous canal (P < .001), but not puborectalis injury, predicted anal resting pressure. A patulous anal canal was the only significant predictor (P < .01) of the anal squeeze pressure increment. CONCLUSIONS Patients with anorectal disorders commonly have a patulous anal canal, which is associated with more severe anal injury and independently predicted anal resting pressure and squeeze pressure increment. It therefore is important to identify a patulous anal canal because it appears to be a marker of not only anal sphincter injury but disturbances beyond sphincter injury, such as damage to the anal cushions or anal denervation.
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Liang S, Zhu L, Zhang L, Sun ZJ, Tao X, Lang JHL. Manometric comparison of anorectal function after posterior vaginal compartment repair with and without mesh. Chin Med J (Engl) 2015; 128:438-42. [PMID: 25673442 PMCID: PMC4836243 DOI: 10.4103/0366-6999.151065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background: Although repair augmented with mesh has been proved its priority in anatomical and functional recovery after anterior compartment reconstruction, the data about posterior compartment are scarce. The aim of this study was to compare bowel functional outcome of posterior vaginal compartment repair with and without mesh in patients with pelvic organ prolapse (POP). Methods: This was a prospective, double-blind, clinical pilot study of 22 postmenopausal women with symptomatic POP (overall POP-quantification [POP-Q] Stage III-IV) who underwent total pelvic floor reconstruction. Patients were grouped according to the use of mesh for posterior vaginal compartment repair: A mesh group and a nonmesh group. POP-Q stage, the pelvic floor impact questionnaire short form-7 (PFIQ-7) and anorectal manometry were evaluated before and 3 months after surgery. Anatomical success was defined as POP-Q Stage II or less. A t-test was used to compare preoperative with postoperative data in the two groups. Results: Totally, 17 (71%) were available for the follow-up. POP-Q measurements improved significantly compared to baseline (P < 0.05) in both groups. No recurrence was observed. Subjects in both groups reported improvement in pelvic floor symptoms, and there was no significant difference in the PFIQ-7 score between groups at follow-up (P > 0.05). Compared with baseline, the nonmesh group exhibited a statistically significant decrease in anal residual pressure, a significant increase in the anorectal pressure difference during bowel movement, and a reduced rate of dyssynergia defecation pattern (P < 0.05). Conclusions: Provided there is sufficient support for the anterior wall and apex of vagina with mesh, posterior compartment repair without mesh may be as effective as repair with mesh for anatomical recovery while providing better anorectal motor function.
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Affiliation(s)
| | - Lan Zhu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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