Table 3. Bowel obstruction cases.

Case	Reference	Year of publication	Type of study	Age/Gender	Time after insertion	Exceed time for removal	Type of treatment	Operation	Where the balloon found	Comments	Outcome	To whom the responsibility
1	28	2000	CR	38 F	9 mo	3 mo	Surgery	Colotomy	Sigmoid		Alive	Patient
2	29	2001	CR	48 F	5 mo	2 mo	Lap surgery	Enterotomy	Proximal ISV	For 2 mo patient denied operation	Alive	Patient/balloon
3	30	2004	RS	NR	10 mo	4 mo	Conservative	–	Mid-colon	Removed by colonoscopy	Alive	Patient
4	30	2004	RS	NR	14 mo	8 mo	Lap surgery	Enterotomy	small bowel		Alive	Patient
5	31	2004	RS	NR	5 mo	–	Conservative Later surgery	Balloon pushed to colon	ISV	No PPIs – removed by colonoscopy	Alive	Patient/balloon
6	32	2008	CR	25 F	48 mo	42 mo	Surgery	Enterotomy	Proximal ISV		Alive	Patient
7	33	2010	CR	35 F	12 mo	6 mo	Surgery	Enterotomy	ISV	Had decided not to remove to save money	Alive	Patient
8	34	2012	CR	25 M	24 hr	5 mo	Surgery	Enterotomy	150 cm prox ISV	Filling valve dysfunction – progressive emptying migration to the gut	Alive	Balloon
9	35	2014	CR	49 F	9 mo	3 mo	Lap surgery	Enterotomy	Distal jejunum		Alive	Patient
10	8	2015	RS	NR	NR	NR	Surgery	NR	NR	Balloon not found at 6 mo in stomach-wait-and-see policy – bowel obstruction	Alive	Balloon
11	8	2015	RS	NR	NR	NR	Surgery	NR	NR		Alive	Balloon
12	36	2016	CR	28 F	24 mo	18 mo	Lap surgery	Enterotomy	ISV	Semi-deflated	alive	patient

RS, retrospective study; CR, case report, NR, not referred; ISV, ileocecal valve.