Sedation-related complications during anesthesiologist-administered sedation for endoscopic retrograde cholangiopancreatography: a prospective study

Table 1 Characteristics of patients excluded from the study

Excluded patients (not meeting inclusion criteria)	n
	48
O₂ sat < 90%	7
SBP < 90 mmHg	3
Lack of written informed consent	30
Age < 18 years	2
Need for general anesthesia	6
Patients who refused to participate	43
Technical failure^a	4
Patients presenting on ≥ 2 occasions^b	41
No ERCP performed	8
No need for ERCP after EUS/EGD	5
Inflammatory duodenal stenosis	1
Gastric contents	1
Allergic reaction against the contrast agent	1
Protocol violation^c	1
Total	Σ 145

EGD Esophagogastroduodenoscopy, ERCP Endoscopic retrograde cholangiopancreatography, EUS Endoscopic ultrasound, O₂sat Oxygen saturation, SBP Systolic blood pressure
^aTechnical failure refers to monitoring system failure such that vital parameters could not be completely and accurately recorded
^bPatients who presented on ≥2 occasions were included in the study only once. The most complete data set was chosen for evaluation. In cases of data sets that were identical with regard to recorded data, data were chosen randomly
^cProtocol violation was observed in 1 patient who was accidentally administered additional drugs (different from those included in the study protocol) for sedation

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