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

Intussusception is defined as the invagination of one portion of the bowel into an immediately adjacent portion. Etiology, symptoms, diagnosis, and treatment are different in the pediatric and adult populations. In the pediatric population, most cases are idiopathic and result in the common scenario of ileocolic intussusception. Factors involved in causation include anatomic features of the developing gastrointestinal tract and infectious influences. In adults, the intussusceptum is typically the result of a mucosal, intramural, or extrinsic lead point that acts as a focal area of traction pulling the proximal portion of bowel into the peristalsing distal portion. The diagnosis and management in the pediatric population is relatively standardized with nonoperative reduction via air or contrast enemas attempted first. In the adult population, intussusception presents a preoperative diagnostic challenge; although surgical intervention is mandatory, intraoperative management remains controversial.
Clin Colon Rectal Surg 2008 May
PMID:Intestinal intussusception. 2001 6

Rectoanal intussusception (RI) is a telescoping of the rectal wall during defecation. RI is an easily recognizable physiologic phenomenon on defecography. The management, however, is much more controversial. Two predominant hypotheses exist regarding the etiology of RI: RI as a primary disorder, and RI as a secondary phenomenon. The diagnosis may be suspected based on clinical symptoms of obstructive defecation. Diagnostic modalities include defecography as the gold standard. Dynamic pelvic magnetic resonance imaging (DPMRI) and transperineal ultrasound are attractive alternatives to defecography; however, their sensitivity is poor in comparison to the gold standard at this time. Management strategies including conservative measures such as biofeedback and surgical procedures including mucosal proctectomy (Delorme), rectopexy, and stapled transanal rectal resection (STARR) procedures have varied degrees of efficacy.
Clin Colon Rectal Surg 2008 May
PMID:Functional disorders: rectoanal intussusception. 2001 8

Obstructed defecation is a common problem that adversely affects the quality of life for many patients. Known causes of obstructed defecation include pelvic dyssynergy, rectocele, rectal intussusception, enterocele, pelvic organ prolapse, and overt rectal prolapse. Management of this condition requires an understanding of urinary, defecatory, and sexual function to achieve an optimal outcome. The goal of surgical treatment is to restore the various pelvic organs to their appropriate anatomic positions. However, there is a poor correlation between anatomic and functional results. As the pelvis contains many structures, a pelvic support or function defect frequently affects other pelvic organs. Optimal outcomes can only be achieved by selecting appropriate treatment modalities that address all of the components of a patient's problem.
Clin Colon Rectal Surg 2012 Mar
PMID:Treatment of obstructed defecation. 2344 41

Angiolipomas are frequently observed benign tumors. They have a typical vascular component and are often located in subcutaneous tissues, and more rarely, in the gastrointestinal tract. We present the case of a 58-year-old man who complained of abdominal discomfort in the left lower quadrant and two to three bloody stools a day without any obvious etiology. These symptom became more severe in the next three days, due to a large angiolipoma located in the descending colon, which was diagnosed intraoperatively. In a literature review, we found only 22 cases of angiolipomas involving the gastrointestinal tract which are reported in the literature from 1960 to 2012 in PubMed; the key words used in the search are gastrointestinal tract angiolipoma, esophagus, stomach, duodenum, intestine, ileocecal junction, colon, rectum angiolipomas. Colon angiolipoma with intussusception, as seen in this case, is rare and may require emergent surgical intervention.
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PMID:Colon angiolipoma with intussusception: a case report and literature review. 2349 39

Rectoanal intussusception is an invagination of the rectal wall into the lumen of the rectum. Patients may present with constipation, incomplete evacuation, incontinence, or may be asymptomatic. Defecography has been the gold standard for detection. Magnetic resonance imaging defecography and dynamic anal endosonography are alternatives to conventional defecography. However, both methods are not as sensitive as conventional defecography. Treatment options range from conservative/medical treatment such as biofeedback to surgical procedures such as Delorme, rectopexy, and stapled transanal rectal resection. Recent studies conducted after a trial of failed nonoperative management show adequate results with operations performed for rectal intussusception with or without rectocele if other causes of constipation are not present.
Clin Colon Rectal Surg 2017 Feb
PMID:Functional Disorders: Rectoanal Intussusception. 2814 6

Paradoxical puborectalis contraction (PPC) and increased perineal descent (IPD) are subclasses of obstructive defecation. Often these conditions coexist, which can make the evaluation, workup, and treatment difficult. After a thorough history and examination, workup begins with utilization of proven diagnostic modalities such as cinedefecography and anal manometry. Advancements in technology have increased the surgeon's diagnostic armamentarium. Biofeedback and pelvic floor therapy have proven efficacy for both conditions as first-line treatment. In circumstances where PPC is refractory to biofeedback therapy, botulinum toxin injection is recommended. Historically, pelvic floor repair has been met with suboptimal results. In IPD, surgical therapy now is directed toward the potentially attendant abnormalities such as rectoanal intussusception and rectal prolapse. When these associated abnormalities are not present, an ostomy should be considered in patients with IPD as well as medically refractory PPC.
Clin Colon Rectal Surg 2017 Feb
PMID:Functional Disorders of Constipation: Paradoxical Puborectalis Contraction and Increased Perineal Descent. 2814 9

Intussusception is defined as the invagination of one segment of the bowel into an immediately adjacent segment of the bowel. Idiopathic ileocolic intussusception is the most common form in children and is typically managed with nonoperative reduction via pneumatic and/or hydrostatic enemas. In the adult population, intussusception is uncommon and occurs more often in the small intestine than in the colon. It is associated with lead point pathology in most symptomatic cases presenting as bowel obstruction. When lead point pathology is present in adult small bowel intussusception, it is usually benign, though when malignant it is most frequently due to diffuse metastatic disease, for example, melanoma. In contrast, adult ileocolic and colonic intussusception lead point pathology is most frequently primary adenocarcinoma when malignant. The diagnosis is typically made intraoperatively or by cross-sectional imaging. With increasingly frequent CT/MRI of the adult abdomen in the current era, transient and/or asymptomatic intussusceptions are increasingly found and may often be appropriately observed without intervention. When intervention in the adult population is warranted, usually oncologic bowel resection is performed due to the association with lead point pathology.
Clin Colon Rectal Surg 2017 Feb
PMID:Intestinal Intussusception: Etiology, Diagnosis, and Treatment. 2814 10

Most cases of adult intussusception are caused by neoplastic lesions, and idiopathic adult intussusception is very rare. We present a case in which laparoscopic surgery was performed for idiopathic adult intussusception initially reduced by colonoscopy. A 53-year-old woman presented to the emergency department of our hospital with intermittent lower abdominal pain. Contrast-enhanced computed tomography and ultrasonography of the abdomen showed a concentric structure in the ascending colon. We diagnosed intussusception. Colonoscopy achieved successful reduction before surgery. Twelve days after this reduction, laparoscopic surgery was performed. Histopathological examination did not reveal any causative pathology; therefore, idiopathic adult intussusception was diagnosed. The postoperative course was uneventful, and the patient was discharged on postoperative day 14. Preoperative colonoscopy should be utilized to diagnose the main lesion and may be useful for reducing adult intussusception. Laparoscopic surgery is both minimally invasive and safe and can be performed following endoscopic reduction.
J Anus Rectum Colon 2019
PMID:Laparoscopic surgery for idiopathic adult intussusception successfully reduced by colonoscopy. 3155 67


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