alexa Constipation of anorectal outlet obstruction: pathophysiology, evaluation and management.
Gastroenterology

Gastroenterology

Journal of Gastrointestinal & Digestive System

Author(s): Andromanakos N, Skandalakis P, Troupis T, Filippou D

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Abstract Constipation is a subjective symptom of various pathological conditions. Incidence of constipation fluctuates from 2 to 30\% in the general population. Approximately 50\% of constipated patients referred to tertiary care centers have obstructed defecation constipation. Constipation of obstructed defecation may be due to mechanical causes or functional disorders of the anorectal region. Mechanical causes are related to morphological abnormalities of the anorectum (megarectum, rectal prolapse, rectocele, enterocele, neoplasms, stenosis). Functional disorders are associated with neurological disorders and dysfunction of the pelvic floor muscles or anorectal muscles (anismus, descending perineum syndrome, Hirschsprung's disease). However, this type of constipation should be differentiated by colonic slow transit constipation which, if coexists, should be managed to a second time. Assessment of patients with severe constipation includes a good history, physical examination and specialized investigations (colonic transit time, anorectal manometry, rectal balloon expulsion test, defecography, electromyography), which contribute to the diagnosis and the differential diagnosis of the cause of the obstructed defecation. Thereby, constipated patients can be given appropriate treatment for their problem, which may be conservative (bulk agents, high-fiber diet or laxatives), biofeedback training or surgery. This article was published in J Gastroenterol Hepatol and referenced in Journal of Gastrointestinal & Digestive System

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