RYGB-Induced Gut Dysmotility and Retrograde Intussusception: an Unusual Phenomenon. A Narrative Literature Review

Abdul Rahman F. Diab, Rodolfo J. Oviedo, Sharique Nazir, Joseph A. Sujka, Christopher G. DuCoin

Research output: Contribution to journalReview articlepeer-review

6 Scopus citations


Intussusception following Roux-en-Y gastric bypass (RYGB) is a rare complication of bariatric surgery with an unclear etiology. The pathogenesis underlying intussusception after gastric bypass is likely different from that in the general population. Post-RYGB intussusception might be related to motility issues in the divided small bowel, thinning of the mesentery following rapid weight loss, or anastomotic sutures/staple line acting as the lead point. This condition can cause obstruction with subsequent strangulation and bowel necrosis if not recognized and treated promptly. Clinical presentation is vague and nonspecific, and computerized tomography scan represents the diagnostic test of choice. Surgical treatment consists of reduction with or without anastomosis resection and reconstruction. This literature review provides an extensive overview of this condition, based on multiple studies involving 120 patients.

Original languageEnglish (US)
Pages (from-to)3452-3457
Number of pages6
JournalObesity Surgery
Issue number10
StatePublished - Oct 2022


  • Anterograde intussusception
  • Bypass
  • Pregnancy
  • Retrograde intussusception
  • Roux-en-Y gastric
  • Small bowel obstruction
  • Gastric Bypass/adverse effects
  • Humans
  • Tomography, X-Ray Computed
  • Intussusception/diagnostic imaging
  • Intestine, Small/surgery
  • Obesity, Morbid/surgery

ASJC Scopus subject areas

  • Nutrition and Dietetics
  • Surgery
  • Endocrinology, Diabetes and Metabolism


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