Rectal Prolapse


Article Author:
Julia Segal
Abdul Waheed


Article Editor:
Melissa Tavarez


Editors In Chief:
Evelyn Metz
Julie Sewell
Aditya Arya


Managing Editors:
Avais Raja
Orawan Chaigasame
Carrie Smith
Abdul Waheed
Khalid Alsayouri
Frank Smeeks
Kristina Soman-Faulkner
Radia Jamil
Patrick Le
Sobhan Daneshfar
Anoosh Zafar Gondal
Saad Nazir
William Gossman
Pritesh Sheth
Hassam Zulfiqar
Navid Mahabadi
Steve Bhimji
John Shell
Matthew Varacallo
Heba Mahdy
Ahmad Malik
Mark Pellegrini
James Hughes
Beata Beatty
Nazia Sadiq
Hajira Basit
Phillip Hynes
Tehmina Warsi


Updated:
6/4/2019 3:09:05 PM

Introduction

Rectal prolapse refers specifically to prolapse of some or all of the rectal mucosa through the external anal sphincter. In pediatric populations aged between infancy and age 4, rectal prolapse is usually a self-limiting condition, responding to conservative management. The highest incidence of rectal prolapse has been noted in the first year of life.[1] However, children presenting after age 4 usually have a chronic condition predisposing them to have developed rectal prolapse.[2] In some cases, prolapse may persist indefinitely, requiring surgical intervention.[3]

Etiology

Pediatric populations are more likely to develop rectal prolapse due to several anatomic differences in early childhood. In children, the rectum follows a vertical course along the sacrum and coccyx and is also in a relatively lower position than the other pelvic organs. The rectum also has a rather redundant rectal mucosa which is attached to the underlying muscularis only loosely. Compared with adult populations, the sigmoid colon has more mobility, and the levator ani muscle offers relatively little support. Finally, Houston valves, which provide structural integrity in the rectum, have not yet fully developed in the majority of infants less than one year.[1]

Rectal prolapse is also caused by increased bowel motility, increased abdominal pressure, and certain congenital conditions, to be outlined below. Increased bowel motility occurs most secondarily to infectious diarrhea caused by amebiasis, giardiasis, trichuriasis, Salmonella, Shigella, and Escherichia coli 0157:H7. Ulcerative colitis and laxative abuse may also cause increases in bowel motility. Next, increased abdominal pressure may commonly be caused by chronic constipation, protracted coughing, excessive vomiting, or straining at urination because of outlet obstruction. Finally, congenital conditions such as cystic fibrosis, myelomeningocele, Hirschsprung disease, spina bifida, congenital hypothyroidism are more likely to develop rectal prolapse. Other causes include malnutrition and anatomic defects such as mucosal polyps or tumors and imperforate anus post repair.[1][4]

Epidemiology

In pediatric populations, rectal prolapse occurs equally in male and female patients.[1] The highest incidence occurs from ages 1 to 3.[5] The affliction is much more common in underdeveloped countries, with common causes including parasitic disease, malnutrition, and diarrheal illness. In the United States, constipation is the most common association.[1]

Pathophysiology

As noted above, rectal prolapse refers specifically to prolapse of some or all of the rectal mucosa through the external anal sphincter. There are 2 types of rectal prolapse: type 1 and type 2, also called false procidentia and true procidentia, respectively. Type 1, which is partial or mucosal prolapse, produces radial folds at the junction with the anal skin. This type is usually involves less than 2 cm of prolapse and only the mucosa is prolapsed. Type 2, or complete prolapse, is characterized by full-thickness extrusion of the rectal wall. Concentric folds are seen in the prolapse mucosa. This type of prolapse, which is similar to intussusception functionally, is further divided into first, second, and third degree prolapse. First-degree, type 2 prolapse protrudes greater than 5 cm from the anal verge and includes the mucocutaneous junction. Second-degree prolapse protrudes only 2 to 5 cm from the anal verge. Finally, third-degree prolapse or occult rectal prolapse is an internal process and thus does not protrude through the anal verge.[1][4]

History and Physical

In adolescents with rectal prolapse, symptoms include tenesmus, anorectal pain, and passage of blood and mucus. In children, rectal prolapse is typically brought to medical attention after being detected by the patient’s parents. A dark red mass with or without mucus and blood that protrudes from the rectum during straining is described, yet this is commonly spontaneously resolved by the time the patient presents. Prolapse is usually painless or associated with only mild discomfort. At the time of prolapse, decreased or absent rectal tone may be present on a digital rectal exam, but the tone is usually normal after a few hours.[1]

Evaluation

Diagnosis of rectal prolapse is most commonly made based on history and physical alone. As mentioned above, prolapse often resolves by the time the patient reaches medical attention, and thus the clinician must rely on history for diagnosis. Patients with constipation as the likely cause of their prolapse should receive contrast radiography of the colon and anorectal manometry.[6] When evaluating third-degree or occult rectal prolapse, colonoscopy or sigmoidoscopy often reveals erythematous granularity of the distal rectum, in addition to a polypoid white-topped mucosal lesion on the anterior rectal wall.[7] These tests may also help visualize rectal polyps or ulcers if present. Evaluation for associated pelvic floor anomalies and further characterization of prolapse may also per performed by fluoroscopic dynamic defecography or magnetic resonance imaging.[1]

Treatment / Management

Conservative management of rectal prolapse includes stool softeners and/or laxatives, avoidance of prolonged straining, and treatment of any predisposing underlying conditions. Compliance with bowel regimen is important because patients who have repeat instances of rectal prolapse may be less responsive to rectal prolapse in the future. Generally, these conservative tools work for about 90% of patients who develop rectal prolapse before age 3. For children with cystic fibrosis, who as mentioned above are predisposed to rectal prolapse, adjustment of pancreatic enzymes is important.[1] Further management is indicated when patients complain of longstanding symptoms, rectal pain, rectal bleeding, rectal ulceration, or difficult manual reduction of the prolapsed rectum.[8] Injection sclerotherapy is often the first intervention, followed by Thiersch cerclage, and finally rectopexy.[1]

Differential Diagnosis

The differential diagnosis for rectal prolapse includes ileocecal intussusception, prolapsing rectal polyp, prolapsing rectal duplication cyst, and rectal hemorrhoids. While rectal prolapse is painless, intussusception presents with intermittent severe pain. Examination of prolapse tissue can distinguish between prolapsing rectal polyp, prolapsing rectal duplication cyst, and rectal hemorrhoids due to the circumferential nature of prolapse.[1]

Prognosis

The prognosis of rectal prolapse is generally good, especially when diagnosed between the age of 9 months and 3 years and not associated with any other underlying condition. It is usually a condition of childhood and often does not recur after age 6. When rectal prolapse is diagnosed after age 4, children are more likely to have underlying neurologic or musculoskeletal problems requiring surgical management and symptoms into adulthood.[1][4]

Complications

Most complications are from surgery and may include:

  • Bleeding
  • Damage to the bladder neck
  • Damage to the presacral nerves
  • Pelvic hematoma

Enhancing Healthcare Team Outcomes

Rectal prolapse is ideally managed by a multidisciplinary team that involves a pediatrician, gastroenterologist, pediatric surgeon, and a pediatric nurse. All children with rectal prolapse should undergo testing for cystic fibrosis. While awaiting surgery, parents should be taught how to reduce the rectal prolapse.[9][10]

Coordination of care for rectal prolapse requires a highly organized interprofessional team. For diagnosis and conservative management, physicians, nurses, and families must work together for effective treatment and maintenance at home. If these treatments are effectively communicated and orchestrated, the patient will ultimately have a better outcome. If surgery is indicated for prolapse, coordination is also needed between physicians, nurses, pharmacists, and other members of the healthcare team. The importance of communication, patient-centered care, and professionalism cannot be understated when working with pediatric populations.[11]


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Rectal Prolapse - Questions

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A 4-month-old presents with rectal prolapse. Which of the following disorders is associated with this finding?



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In a 4-month-old with rectal prolapse without any underlying anatomic abnormality, what is the most appropriate next test?



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A 6-month-old child presents with rectal prolapse. Which of the following diseases is associated with this finding?



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The 3 children of a 92 year old female are concerned about emotional changes. The patient lives alone and has been withdrawn. The family notes she has a foul odor. The patient's weight is stable and she only complains of hemorrhoids. She appears depressed and has vegetative signs. Select the next step.



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Rectal Prolapse - References

References

Rentea RM,St Peter SD, Pediatric Rectal Prolapse. Clinics in colon and rectal surgery. 2018 Mar     [PubMed]
Corman ML, Rectal prolapse in children. Diseases of the colon and rectum. 1985 Jul     [PubMed]
Antao B,Bradley V,Roberts JP,Shawis R, Management of rectal prolapse in children. Diseases of the colon and rectum. 2005 Aug     [PubMed]
Siafakas C,Vottler TP,Andersen JM, Rectal prolapse in pediatrics. Clinical pediatrics. 1999 Feb     [PubMed]
Hill SR,Ehrlich PF,Felt B,Dore-Stites D,Erickson K,Teitelbaum DH, Rectal prolapse in older children associated with behavioral and psychiatric disorders. Pediatric surgery international. 2015 Aug     [PubMed]
Koivusalo AI,Pakarinen MP,Rintala RJ, Rectopexy for paediatric rectal prolapse: good outcomes but not without postoperative problems. Pediatric surgery international. 2014 Aug     [PubMed]
White CM,Findlay JM,Price JJ, The occult rectal prolapse syndrome. The British journal of surgery. 1980 Jul     [PubMed]
Jacobs LK,Lin YJ,Orkin BA, The best operation for rectal prolapse. The Surgical clinics of North America. 1997 Feb     [PubMed]
van der Schans EM,Paulides TJC,Wijffels NA,Consten ECJ, Management of patients with rectal prolapse: the 2017 Dutch guidelines. Techniques in coloproctology. 2018 Aug     [PubMed]
Kelley BR,Beauchesne MA,Ott MJ,Graham JM,Burton M, Preschool child with rectal prolapse. Journal of pediatric health care : official publication of National Association of Pediatric Nurse Associates     [PubMed]
Minaev SV,Kirgizov IV,Gladkyy A,Shishkin I,Gerasimenko I, Outcome of Laparoscopic Treatment of Anorectal Malformations in Children. World journal of surgery. 2017 Feb     [PubMed]

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