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Query: UMLS:C0021933 (intussusception)
 3,822 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Anal manometry and anal electromyography (EMG) were performed in 45 patients to evaluate the external anal sphincter. Their symptoms were soiling (N = 6), incontinence (N = 10), and obstipation (N = 19). Clinical diagnoses were previous anal surgery (N = 16), rectal prolapse--partial, total, intussusception (N = 16), puborectalis syndrome (N = 4), neurologic disorders (N = 3), and others (N = 6). The relationship between the maximum squeeze pressure (MSP) measured with anal manometry and the maximum (voluntary) contraction pattern (MCP) and signs of denervation (DEN) measured with anal EMG were examined. The correlation coefficient between MSP and MCP was 0.55 (P less than .001) and between MSP and DEN 0.13 (NS). A normal MSP always showed a normal MCP, a normal MCP showed an abnormal MSP in 43 percent only. In conclusion, the clinical value of anal EMG seems limited. Assessment of an additional anal EMG seems indicated in incontinent patients with previous anal surgery with a low MSP to estimate muscle function, whenever anal surgery is considered. Anal EMG during straining can easily confirm the clinical diagnosis of puborectalis syndrome.
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PMID:The external anal sphincter. Relationship between anal manometry and anal electromyography and its clinical relevance. 291 24

Over a 2 1/2 year period a prospective study was undertaken to evaluate the occurrence and symptoms of rectal intussusception (internal procidentia). The condition was found in 28 female patients. 17 patients were operated on due to severe obstruction during defaecation, perineal pain, solitary rectal ulcer syndrome, and partial incontinence. The endopelvic findings were similar to those encountered in patients with complete, external rectal prolapse, and the operative procedure was identical (rectal mobilization, elevation, fixation, with rectosigmoid resection in most cases). Results were favorable. Conservative treatment seemed to be adequate in 7 of the 11 remaining patients.
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PMID:[Internal rectal prolapse]. 338 80

Rectal prolapse and solitary rectal ulcer syndrome are both benign conditions affecting the rectum, mainly in women; prolapse tends to occur late in life, while solitary rectal ulcer syndrome has a predilection for the younger adult. Complete rectal prolapse probably starts as a mid-rectal intussusception, although a combination of this theory and the 'sliding hernia' theory has been proposed by Altemeier et al (1971). The pelvic floor weakness associated with prolapse, which gives rise to incontinence, is most likely due to a traction injury to the pudendal nerve. Anorectal manometry will indicate those incontinent patients likely to benefit from rectopexy. Abnormal descent of the perineum may be found in rectal prolapse and solitary rectal ulcer syndrome as well as descending perineum syndrome per se. The clinical features of these three conditions can overlap. Solitary rectal ulcer syndrome is essentially due to prolapse and traumatization of the rectal mucosa. Inappropriate puborectalis contraction, abnormal perineal descent, and overt rectal prolapse have all been cited as possible mechanisms of development of the condition. Defecography is the radiologic investigation of choice. Electromyography, as in rectal prolapse, may show evidence of pudendal nerve damage although incontinence is rare.
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PMID:The pathogenesis and pathophysiology of rectal prolapse and solitary rectal ulcer syndrome. 353 17

Rectal prolapse occurs mostly in the geriatric female patient and can be a very disabling condition. The etiology is intussusception of the rectosigmoid secondary to excessive and prolonged straining. Medical therapy for this disease process is not helpful and patients will require a surgical procedure. The two best surgical procedures for the correction of rectal prolapse are low anterior resection of the rectosigmoid and proctopexy. A few patients who are unfit for laparotomy may require the Thiersch Wire procedure. Two unresolved problems after surgical therapy are continuing constipation and incontinence. Constipation is treated by dietary measures, stool softeners, and periodic enemas. Laxatives are to be discouraged. Incontinence in patients with rectal prolapse improves in most patients after a procedure to correct the prolapse. In those patients in which incontinence persists, no form of therapy has been found to be uniformly successful.
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PMID:Rectal prolapse. 383 Mar 77

Our simple method of defecography has proved to be more sensitive than clinical evaluation in the detection and description of defecation disorders. Among the different types of disorders, described on the basis of 144 abnormal defecograms, the most common are rectal intussusception (RI), intraanal rectal intussusception (IRI), external manually (EMRP) or spontaneously (ESRP) reducible prolapses, rectocele, and accentuation of the impression of the puborectalis sling (AIPR). Study of the mean values of the anorectal angle (ARA) (normal mean value = 92 degrees at rest) reveals an increase (p less than 0.05) in the ARA in IRI and ESRP and a decrease (p less than 0.05 at rest, p less than 0.001 at strain) in AIPR. The most striking observation is a highly significant increase (p less than 0.001) in the ARA associated with incontinence.
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PMID:Defecography: II. Contribution to the diagnosis of defecation disorders. 646 63

The classical abnormalities found in patients with complete rectal prolapse--wide deep pelvic peritoneal pouch, unsupported redundant rectum with long mesorectum, weak pelvic floor and anal sphincters--are probably effects rather than causes. "Pelvic floor weakness" must explain few cases, since old age, multiparity, uterine prolapse, are found in a minority. The fact that operations which do no more than fix the rectum in the sacral hollow are most successful and often cure incontinence if present is the best evidence that lack of support of the rectum is a prime cause of prolapse--but it is equally likely that such operations work by preventing intussusception, now regarded as the likely mechanism (rather than sliding herniation) of complete rectal prolapse. It is suggested that rectal prolapse is usually due to straining at defaecation against a closed levator-ani--anal-sphincter mechanism, producing prolapse of the rectum rather than incontinence of faeces. Such straining may be obsessive on the part of patients with psychosocial problems and reduced awareness that the rectum is empty; or it may be due to attempted defaecation with a full rectum in patients with reduced rectal sensation, failure of the afferent arc of the ano-rectal reflex and consequent absence of levator-ani--anal-sphincter relaxation.
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PMID:Observations upon the aetiology and treatment of complete rectal prolapse. 693 Feb 24

Inflammatory cloacogenic polyp (ICP) is a rare lesion arising in the region of the anorectal transitional zone. It is likely caused by occult internal prolapse. Most cases reported in the literature are in the adult population. This is a report of ICP in four children. Awareness of this entity in children is important because of both the propensity for recurrence or persistence of the polyps if the underlying etiology is not corrected, as well as the long-term implications of internal intussusception: procidentia, descending perineum syndrome, and ultimately, incontinence.
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PMID:Inflammatory cloacogenic polyps in children. 759 40

Patients with pelvic floor disorders frequently have associated anorectal dysfunction, which can be evaluated by a variety of laboratory tests. Evacuation proctography (defecography) documents the process of rectal evacuation and therefore demonstrates disorders of defecation, particularly those of an obstructive nature. It provides objective information about rectocele size and emptying and demonstrates coexistent enteroceles, many of which are missed on physical examination. This radiographic technique is the method of choice for recognizing rectal intussusception, the mechanism by which rectal prolapse occurs. Proctography suggests the diagnosis of spastic pelvic floor (anismus), a disorder amenable to biofeedback therapy. Proctography has limited application in anal incontinence unless there are associated obstructive symptoms. Evaluation of bladder dysfunction is aided by concomitant cystography. Gynecologists managing pelvic floor disorders should assess coexistent anorectal dysfunction, as undiagnosed enteroceles and disorders of defecation are an important cause of persistent or recurrent symptoms following pelvic floor repair. A comprehensive interdisciplinary approach to pelvic floor disorders is recommended.
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PMID:Evacuation proctography (defecography): an aid to the investigation of pelvic floor disorders. 829 Feb 1

In the past decade, interest in the anorectal region and the mechanism of continence and defecation has been increasing. Subsequently, techniques to visualize the anorectum have been introduced; evacuation proctography and defecography have been used to describe the dynamic radiologic evaluation of this area. Also, developments in anorectal manometry, electromyography, and transrectal sonography have renewed interest in defecography, particularly in categorizing the functional disorders including rectocele, intussusception and prolapse, enterocele, descending perineum syndrome, dyskinetic puborectalis muscle, solitary rectal ulcer syndrome, and incontinence.
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PMID:Functional disorders of the anus and rectum: findings on defecography. 845 64

A prospective clinical, manometric, electromyographic and radiological study was conducted to judge the degree of success achieved with anterior-posterior rectopexy in 18 female patients suffering from obstructed defecation and varying degrees of incontinence. Prior to being operated on, 6 of the patients showed symptoms of intussusception, 4 an internal prolapse of the anterior rectum wall, and 5 a rectocele at least 2 cm in size; all of them had significant perianal descent. The main aim of this study was more precise definition of the pre- and postoperative bowel evacuation using a defecation index. This study shows that obstructed defecation is significantly associated with a lasting feeling of needing to defecate after evacuation, a sensation of incomplete evacuation, perianal pain and necessity for manual support during defecation. The patients had a mean age of 62 (range, 38-78) years. All underwent anterior-posterior rectopexy (Ivalon or Vicryl) with posterior pelvic repair of the puborectalis muscle. In 2 patients rectopexy was combined with sigmoidectomy, in 11 cases, with left hemicolectomy, and in 2, with subtotal colectomy. The median follow-up was 40.8 months (range, 6-66 months). Postoperatively anorectal manometry showed a significant increase in the resting anal pressure and the maximum voluntary pressure (P = 0.05). Continence was improved in 10 patients (55%), 7 (39%) of whom regained normal continence. No significant change in pelvic descent or anorectal angle was observed. Only 8 patients reported a complete evacuation of the rectum postoperatively.
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PMID:[Value of abdominal rectopexy in obstructive disorders of defecation. A prospective study using a defecation index, manometry and radiology]. 847 1


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