Table 1:

Literature overview: intussusception in adult patients with Crohn’s disease.

Author	Symptoms	Surgery prior to intussusception	Time between surgery and intussusception	Location of intussusception	Therapy	Course
Greenstein et al. [9]
Case 1	NA	Ileocecal resection, ileoascending colostomy, anterior resection with coloproctostomy, loop ileostomy	1 month	Jejuno–jejunal	Laparotomy, manual reduction	Asymptomatic 2 years postoperatively
Case 2	Severe, crampy left upper quadrant pain, visible peristalsis in the upper abdomen	Ileocecal resection, ileoascending colostomy	6 weeks	Jejuno–jejunal	Laparotomy, manual reduction	Asymptomatic 2 years postoperatively
Hertz et al. [10]
Case 1	NA	Ileocecal resection, ileoascending anastomosis, anterior resection of the sigmoid and proximal rectum, loop ileostomy	1 month	Jejuno–jejunal	Laparotomy, manual reduction	Asymptomatic 5 years postoperatively
Case 2	Severe left upper quadrant pain, visible upper abdominal peristalsis	Ileocecal resection, ileoascending anastomosis	6 weeks	Jejuno–jejunal	Laparotomy, manual reduction	Asymptomatic 3 years postoperatively
Case 3/1 (same patient)	Left abdominal mass, vomiting	Resection of distal ileum, ileoascending anastomosis	Same hospital stay	Jejuno–jejunal	Conservative (patient became clinically well without treatment)
Case 3/2 (same patient)			1 month	Jejuno–jejunal	Resection of necrotic jejunum due to intestinal perforation	Asymptomatic 1 year postoperatively
Knowles et al. [11]
Case 1	Intermittent abdominal pain for 2 months	3 laparotomies with bowel resections	NA	Small bowel	Laparotomy with resection of distal ileum	NA
Case 2	Severe, crampy abdominal pain for 4 days, nausea	Resection of ileum after perforation	Several years	Ileum	Laparotomy with small bowel resection	NA
Catalano et al. [21]	Abdominal pain for 3 months, palpable abdominal mass	None	-	Colo–colic	None	Enema 1 year later still showed chronic intussusception
Shah et al. [22]	Abdominal pain, nausea, bilious vomiting	None	-	Entero–enteric	Conservative	Discharged after 17 days
Atten et al. [14]	Intermittent, colicky midabdominal pain, bloody diarrhea	Segmental resection of left colon	8 years	Colo–colic	Laparotomy, right hemicolectomy with end loop ileostomy	NA
Kihiczak et al. [19]	Severe intermittent abdominal pain	None	-	Ileo–colic	Conservative	Discharged after 8 days
Dragani et al. [17]	Severe colicky lower abdominal pain, minor rectal bleeding, abdominal distension for 3 days	None	-	Colo–colic	Barium enema	Asymptomatic at 6 months after discharge
Fernández et al. [20]	Central abdominal pain, vomiting, and bloody stool for previous 2 days	None	-	Distal ileum	Initially conservative, laparotomy after 3 days with reduction and bowel resection	Asymptomatic at 6 months follow up
Uchino et al. [12]
Case 1	Abdominal pain, nausea, upper left quadrant abdominal distension	Ileocecal resection, ileoascending colostomy	3 days	Jejuno–jejunal	Initially conservative; laparotomy and resection of incarcerated jejunal intussuscipiens on the 7th postoperative day	Asymptomatic 1 year postoperatively
Case 2	Abdominal pain, nausea, upper left quadrant abdominal distension	Ileocecal resection	14 days	Small intestine	Laparotomy, manual reduction	Discharged on 27th postoperative day
Pandit et al. [13]	Colicky, intermittent pain in the left hypochondrium	Stoma closure after jejunal and ileal resection, double-barrel jejunostomy	13 days	Jejuno–jejunal	Conservative	Discharged on 20th postoperative day