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Anorectal Disorders

Anorectal Disorders is a topic covered in the Washington Manual of Medical Therapeutics.

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  • Defecatory disorders present with difficulty evacuating stool from the rectum or outlet constipation. The diagnosis is ideally made in the setting of compatible symptoms and abnormal testing, including DRE, balloon expulsion testing, barium defecography, MRI, anorectal manometry, and/or pelvic floor electromyography (Am J Gastroenterol 2014;109:1141  [PMID:25022811]). Management includes biofeedback therapy (Gastroenterology 2014;146:37  [PMID:24211860]).
  • Thrombosed external hemorrhoids present as acutely painful, tense, bluish lumps covered with skin in the anal area. The thrombosed hemorrhoid can be surgically excised under local anesthesia for relief of severe pain. In less severe cases, oral analgesics, sitz baths (sitting in a tub of warm water), stool softeners, and topical ointments may provide symptomatic relief (BMJ 2008;336:380  [PMID:18276714]).
  • Internal hemorrhoids commonly present with either bleeding or a prolapsing mass with straining. Bulk-forming agents such as fiber supplements are useful in preventing straining at defecation. Sitz baths and Tucks pads may provide symptomatic relief. Ointments and suppositories that contain topical analgesics, emollients, astringents, and hydrocortisone (e.g., Anusol-HC Suppositories, one per rectum bid for 7–10 days) may decrease edema but do not reduce bleeding. Hemorrhoidectomy or band ligation can be curative and is indicated in patients with recurrent or constant bleeding (BMJ 2008;336:380  [PMID:18276714]).
  • Anal fissures present with acute onset of pain during defecation and are often caused by hard stool. Anoscopy reveals an elliptical tear in the skin of the anus, usually in the posterior midline. Acute fissures heal in 2–3 weeks with the use of stool softeners, oral or topical analgesics, and sitz baths. The addition of oral or topical nifedipine to these conservative measures can improve pain relief and healing rates (Am J Surg 2013;206:748  [PMID:24035211]).
  • Perirectal abscess commonly presents as a painful induration in the perianal area. Patients with IBD and immunocompromised states are particularly susceptible. Prompt drainage is essential to avoid the serious morbidity associated with delayed treatment. Antimicrobials directed against bowel flora (metronidazole, 500 mg PO tid, and ciprofloxacin, 500 mg PO bid) should be administered in patients with significant inflammation, systemic toxicity, or immunocompromised states.

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Citation

Williams, Dominique, et al., editors. "Anorectal Disorders." Washington Manual of Medical Therapeutics, 35th ed., Wolters Kluwer Health, 2016. Washington Manual, www.unboundmedicine.com/washingtonmanual/view/Washington-Manual-of-Medical-Therapeutics/602007/all/Anorectal_Disorders.
Anorectal Disorders. In: Williams D, Ramgopal R, Gdowski M, et al, eds. Washington Manual of Medical Therapeutics. 35th ed. Wolters Kluwer Health; 2016. https://www.unboundmedicine.com/washingtonmanual/view/Washington-Manual-of-Medical-Therapeutics/602007/all/Anorectal_Disorders. Accessed June 18, 2019.
Anorectal Disorders. (2016). In Williams, D., Ramgopal, R., Gdowski, M., Dretler, A., & Bhat, P. (Eds.), Washington Manual of Medical Therapeutics. Available from https://www.unboundmedicine.com/washingtonmanual/view/Washington-Manual-of-Medical-Therapeutics/602007/all/Anorectal_Disorders
Anorectal Disorders [Internet]. In: Williams D, Ramgopal R, Gdowski M, Dretler A, Bhat P, editors. Washington Manual of Medical Therapeutics. Wolters Kluwer Health; 2016. [cited 2019 June 18]. Available from: https://www.unboundmedicine.com/washingtonmanual/view/Washington-Manual-of-Medical-Therapeutics/602007/all/Anorectal_Disorders.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Anorectal Disorders ID - 602007 ED - Williams,Dominique, ED - Ramgopal,Rajeev, ED - Gdowski,Mark, ED - Dretler,Alexandra, ED - Bhat,Pavat, BT - Washington Manual of Medical Therapeutics UR - https://www.unboundmedicine.com/washingtonmanual/view/Washington-Manual-of-Medical-Therapeutics/602007/all/Anorectal_Disorders PB - Wolters Kluwer Health ET - 35 DB - Washington Manual DP - Unbound Medicine ER -