Evaluation of the diagnostic and therapeutic utility of retrograde through-the-scope balloon enteroscopy and single-balloon enteroscopy

Table 3 Procedure data including routes, diagnostic yield, findings, and interventions

	Enteroscope device
	Entire cohort	Retrograde SBE1	Retrograde TTSE2
Number of procedures	81	54	27
	Mean (SD)	Mean (SD)	Mean (SD)	P value3
Duration of procedure	86.2 (34.2)	91.9 (34.2)	70.5 (30.7)	0.04
Depth of the scope insertion	82.1 (64.1)	92.5 (70.0)	64.6 (49.0)	0.08
Successful procedure with diagnostic yield, n (%)	n = 64	n = 41	n = 23	0.39
Normal	43 (67.2)	26 (63.4)	17 (73.9)
Positive finding	21 (32.8)	15 (36.6)	6 (26.1)
Intervention performed, n (%)				0.38
No	65 (80.3)	45 (83.3)	20 (74.1)
Yes	16 (19.8)	9 (16.7)	7 (25.9)
Failed (2011-2018), n (%)	17 (21.0)	13 (24.1)	4 (14.8)	0.33
Terminal ileum not intubated	9 (11.1)	8 (14.8)	1 (3.7)
Insertion < 20 cm	8 (9.9)	5 (9.3)	3 (11.1)
Years	Failed/procedure	Failed/procedure	Failed/procedure
2011-2012	5/14	5/14	-
2013-2014	4/27	4/22	0/5
2015-2016	6/26	3/11	3/15
2017-2018	2/14	1/7	1/7

¹Single balloon enteroscopy.

²Through the scope enteroscopy.

³Compares retrograde single balloon enteroscopy and retrograde through–the-scope enteroscopy.