Bispectral index monitoring as an adjunct to nurse-administered combined sedation during endoscopic retrograde cholangiopancreatography

Table 1 Baseline characteristics of patients n (%)

Characteristics	Value
Gender
Male	36 (61)
Female	23 (39)
Etiology
Acute idiopathic pancreatitis	3 (5.1)
Biloma	1 (1.7)
Common bile duct stone	34 (57.6)
Cholangiocarcinoma	10 (16.9)
Chronic pancreatitis	4 (6.8)
Intraductal papillary mucinous neoplasm	2 (3.4)
Pancreatic cancer	5 (8.5)

Table 2 Comparative results of paired examinations

	BIS	Control	P value
Midazolam (mg)	1.64 ± 0.87	1.61 ± 0.70	0.788
Propofol (mg)	53.1 ± 32.2	54.9 ± 30.8	0.673
Procedure duration (min)	21.0 ± 10.5	18.6 ± 9.6	0.187
Propofol dose/min (mg/min)	2.90 ± 1.83	3.44 ± 2.04	0.103
Procedure failed cases	1	3	0.309
Poor cooperation	2	2
Mean BIS score	76.5 ± 8.7	NA

NA: Not available; BIS: Bispectral index.