Comparison of clinical outcomes for single- and double-balloon enteroscope-assisted endoscopic retrograde cholangiopancreatography in patients with surgically altered anatomy

Table 3 Comparison of clinical outcomes between double-balloon enteroscopy and single-balloon enteroscopy group, n (%)/mean ± SD

Variable	DBE (n = 247)	SBE (n = 247)	P value
Overall technical success	218 (88.3)	229 (92.7)	0.125
Technical success in 1st session	217 (87.9)	226 (91.5)	0.237
Total adverse events	26 (10.5)	36 (14.6)	0.222
Sedation related AE	2 (0.8)	3 (1.2)	1.000
Post-procedure pancreatitis	12 (4.9)	21 (8.5)	0.149
Mild	12 (4.9)	16 (6.5)	0.125
Moderately severe	0 (0.0)	4 (1.6)
Severe	0 (0.0)	1 (0.4)
Pneumoperitoneum	5 (2.0)	1 (0.4)	0.218
Perforation	2 (0.8)	0 (0.0)	0.479
Significant bleeding	4 (1.6)	1 (0.4)	0.369
Post-ERCP cholecystitis	0 (0.0)	6 (2.4)	0.040
Post-ERCP cholangitis	1 (0.4)	9 (3.6)	0.025
Length of hospital stay, days, median (interquartile range)	5.0 (1.0-9.0)	5.0 (3.0-7.0)	0.054
Repeated ERCP within 30 days	33 (13.4)	26 (10.5)	0.405

DBE: Double-balloon enteroscopy; SBE: Single-balloon enteroscopy; ERCP: Endoscopic retrograde cholangiopancreatography; AE: Adverse event.