Intussusception Treatment Guidelines

Diagnostic Approach

The American College of Surgeons recommends CT scan as the imaging modality of choice to confirm diagnosis and identify complications in hemodynamically stable adults 1, 2
Evaluation for peritonitis, strangulation, or bowel ischemia requiring immediate surgery is crucial 1, 3
Assessing hemodynamic stability is essential to determine intervention urgency 1, 3
Note that 86-93% of adult cases have an underlying pathologic lesion (malignancy, inflammatory bowel disease, adhesions, Meckel's diverticulum) 1

Formal surgical exploration with bowel resection following oncological principles is recommended due to the high malignancy risk 1, 2
Resection of the invaginated segment with reconstruction is the standard approach 1, 2
The 48-hour threshold is critical—mortality increases significantly with delayed intervention 1, 3, 2

Non-operative management may be attempted only when the patient is hemodynamically stable, has no signs of peritonitis or bowel compromise, and has a colonic location amenable to colonoscopic reduction 3
Endoscopic reduction carries high recurrence rates 1, 3
Mandatory close monitoring for at least 24 hours after reduction is necessary 1, 3
Surgical consultation must be obtained in all cases, even when attempting non-operative management 1, 3

Immediate surgical intervention is recommended for acute presentations of post-bariatric surgery intussusception 2
Elective polypectomy of small bowel polyps >1.5-2 cm (or smaller if symptomatic) prevents intussusception in Peutz-Jeghers Syndrome (PJS) patients, who have a 50-68% cumulative risk in childhood 4, 5, 6
Surveillance with video capsule endoscopy and MRI enterography should begin at age 8 years for PJS patients 4, 5

Delaying surgery beyond 48 hours in adults increases mortality significantly 1, 3, 2
Underlying pathology exists in 86-93% of adult cases, so assuming idiopathic etiology is incorrect 1

The World Journal of Emergency Surgery recommends beginning exploration from the ileocecal junction (distal to obstruction) where bowel is less dilated and safer to handle laparoscopically, and assessing intestinal viability—if ischemia is present, perform surgical resection, with the use of indocyanine green (ICG) fluorescence angiography to guide resection margins when intestinal perfusion is questionable 7
The same guideline suggests closing all mesenteric defects with non-absorbable sutures after reduction to prevent recurrence 7

Resection of the affected segment is recommended as it results in fewer recurrences compared to simple reduction, according to the World Journal of Emergency Surgery 7
In stable patients with persistent abdominal pain and inconclusive findings after post-bariatric surgery intussusception, exploratory laparoscopy is mandatory within 12-24 hours, as recommended by the World Journal of Emergency Surgery 7