Stenosis in gastric bypass: Endoscopic management

Table 1 Dilation treatment of gastrojejunal strictures after gastric bypass-clinical data of reported series

Author	n	Stricture rate (%)	Time to stricture	Dilation method	Strategy	No. of Sessions	Success rate (%)	Complications	Follow-up
Rossi[18]	38	17	NR	TTS balloon	Stoma no larger than 15 mm	1: 47.3%	100	No	12 m
						2: 47.3%
						3: 5.2%
Goitein[7]	19	5.1	45 d	TTS balloon Savary (10/19)	Initial: 8-18 mm	1: 22%	100	1 microperforation	21 m
						2: 39%		1.60%
						≥ 3: 35%
Barba[12]	24	11	< 3 mo	TTS balloon	Mínimum: 15 mm	1: 67%	100	No	> 6 m
						2: 30%
						3: 3%
Ahmad[8]	14	3.1	2.7 mo	TTS balloon	Mínimum: 15 mm	1: 64%	100	No	18 m
						2: 29%
						3: 7%
Escalona[30]	53	6.9	51 d	Savary	Up to 11 mm	1: 75.5%	100	1 microperforation	NR
						2: 16.9%		1.90%
						3: 5.7%
						4: 1.9%
Go[29]	38	6.8	7.7 wk	TTS balloon	Initial: 12-15 mm	1-2: 71% ≥ 3: 29%	95	1 pneumotorax	1 m
								+ pneumomediastinum
								(3%)
Peifer[9]	43	5.4	50 d	TTS balloon	Up to 15 mm	1: 79%	93	No	1 y
						2: 13.9%
						≥ 3: 6.9%
Lee[1]	40	3.7	1855 d	TTS balloon	Stoma > 11 mm	1: 42.5%	100	No	6 m
					< 15-18 mm	2: 17.5%
						3: 27.5%
						>3: 12.5%
Kretzschmar[23]	13	3	2.5 mo	Fogarty	Stoma ≥ 12	1: 86.3%	77	No	3.7 y
				Grüntzig balloon
Bell[28]	3	11	10 wk	TTS balloon Savary	Stoma ≥ 12	1: 33.3%	100	No	12 m
						≥ 2: 66.6%
						F-Esparrach[14]				24	6	69 d	Savary	Final diameter: 12.8 mm	1: 45.8%	100	No	343 d
2: 50%
3: 4.1%
Matthews[21]	13	27	< 3 mo	TTS balloon	NR	1: 53.8%	100	No	12 m
						2-4: 46.1%
Da Costa[19]	105	7.8	3 mo	TTS balloon	NR	1: 57.1%	100	Perforation	NR
						2: 27.6%		1.8%
						≥ 3: 15.2%
Campillo[13]	5	8.1	< 3 mo	TTS balloon	Maximum:15 mm	1: 60%	100	No	24 m
						2: 40%
						Ukleja[17]				61	6	2 mo	TTS balloon	Ranged from 6 to 18 mm	1: 28%	100	Perforation	NR
2: 33%	2.2%
3: 26%
> 3: 13.1%
Alasfar[5]	29	23	Median:	TTS balloon	12 mm	1: 86%	100	No	NR
			52 d			2: 3.5%
						3: 10.5%
Mathew[6]	58	6.5	66.2 d	TTS balloon	Stoma no larger tan 12 mm	1: 40%	97	Perforation	NR
						2: 31%		3.2%
						3: 16%
						> 3: 10%
Espinel[22]	22	4.1	126 d	TTS balloon	Initial: 12-15 mm	1: 68.1%	100	1 microperforation	27 m
						2: 27.2%		(4.5%)
						≥ 3: 4.5%