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Mechanisms, Evaluation, and Management of Chronic Constipation
Open accessAbstract
With a worldwide prevalence of 15%, chronic constipation is one of the most frequent gastrointestinal diagnoses made in ambulatory medicine clinics, and is a common source cause for referrals to gastroenterologists and colorectal surgeons in the United States. Symptoms vary among patients; straining, incomplete evacuation, and a sense of anorectal blockage are just as important as decreased stool frequency. Chronic constipation is either a primary disorder (such as normal transit, slow transit, or defecatory disorders) or a secondary one (due to medications or, in rare cases, anatomic alterations). Colonic sensorimotor disturbances and pelvic floor dysfunction (such as defecatory disorders) are the most widely recognized pathogenic mechanisms. Guided by efficacy and cost, management of constipation should begin with dietary fiber supplementation and stimulant and/or osmotic laxatives, as appropriate, followed, if necessary, by intestinal secretagogues and/or prokinetic agents. Peripherally acting μ-opiate antagonists are another option for opioid-induced constipation. Anorectal tests to evaluate for defecatory disorders should be performed in patients who do not respond to over-the-counter agents. Colonic transit, followed if necessary with assessment of colonic motility with manometry and/or a barostat, can identify colonic dysmotility. Defecatory disorders often respond to biofeedback therapy. For specific patients, slow-transit constipation may necessitate a colectomy. No studies have compared inexpensive laxatives with newer drugs with different mechanisms. We review the mechanisms, evaluation, and management of chronic constipation. We discuss the importance of meticulous analyses of patient history and physical examination, advantages and disadvantages of diagnostic testing, guidance for individualized treatment, and management of medically refractory patients.
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“For prucalopride, a selective agonist of serotonin 5-HT 4 receptors, the recommended dose is 2 mg once daily in adults and 1 mg daily in individuals with severe renal impairment (ie, creatinine clearance <30 mL/min). 80”
From American Gastroenterological Association-American College of Gastroenterology Clinical Practice Guideline: Pharmacological Management of Chronic Idiopathic Constipation (2023) · cites this paper as [80]
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A Practical Guide to Biofeedback Therapy for Pelvic Floor Disorders
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Common Functional Gastroenterological Disorders Associated With Abdominal Pain
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Surgery for constipation: systematic review and practice recommendations
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High‐resolution anorectal manometry: An expensive hobby or worth every penny?
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Self-citationSacral Nerve Stimulation Fails to Offer Long-term Benefit in Patients With Slow-Transit Constipation
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Self-citationSurgery for constipation: systematic review and practice recommendations
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Self-citationMore Movement with Evaluating Colonic Transit in Humans
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Self-citationEffects of an osmotically active agent on colonic transit
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Self-citationPhysiology of the Colon and Its Measurement
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Metadata
- Authors
- Bharucha, A. E., & Lacy, B. E.
- Affiliations
- Mayo Clinic (US)
- Corresponding author
- Bharucha, Adil E.
- Venue
- Gastroenterology
- Publisher
- Elsevier BV
- Published
- 2020-04
- Volume
- 158
- Issue
- 5
- Pages
- 1232-1249.e3
- ISSN
- 0016-5085 (ISSN-L)
- PMC
- PMC7573977
- OpenAlex
- W3000300599
- Cited by
- 655
- References
- 170
- Citations by year
- 2026: 108 · 2025: 157 · 2024: 115 · 2023: 99 · 2022: 112 · 2021: 46 · 2020: 17
- FWCI
- 11.88
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Gastroenterology (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of Diabetes and Digestive and Kidney Diseases
- Topics
- Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
- Health Sciences › Medicine › Urology › Pelvic floor disorders treatments
- Health Sciences › Medicine › Surgery › Congenital gastrointestinal and neural anomalies
- Keywords
- chronic constipation, defecation disorders, slow transit constipation, colonic transit, colonic motility, pelvic floor dysfunction, dietary fiber supplementation, laxatives, prokinetic agents, opioid-induced constipation, biofeedback, anorectal manometry, barostat, colectomy, constipation treatment
- MeSH terms
- Secretagogues, Chronic Disease, Colon, Constipation, Defecation, Dietary Fiber, Electromyography, Gastrointestinal Motility, Humans, Intestinal Mucosa, Magnetic Resonance Imaging, Manometry, Rectum, Prevalence, Receptors, Opioid, mu, Pelvic Floor, Dietary Supplements, Defecography, Digital Rectal Examination, Laxatives
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