Digital single-operator cholangioscopy for biliary stricture after cadaveric liver transplantation

Table 2 Patients’ endoscopic diagnosis and treatment

Patient No.	Finding of ERCP	Findings of DSOC	Biliary stricture classification by DSOC	Endoscopic intervention
1	NAS	NAS; AS; stone; suture	Type B	Extraction of stones; MSP
2	NAS	AS; stone; suture	Type C	Extraction of stones; MSP
3	NAS	AS; stone; suture	Type D	MSP; ENBD
4	NAS	AS; stone	Type B	CAGP; balloon dilation; extraction of stones; MSP
5	AS	AS; stone; suture	Type A	CAGP; laser lithotripsy; balloon dilation; extraction of stones; MSP
6	NAS	Space-occupying lesions		Biopsy
7	AS	AS; stone; suture	Type B	Extraction of stones; MSP
8	AS	AS; stone; suture	Type B	Extraction of stones; MSP
9	AS, stone	AS; stone	Type A	Balloon dilation; laser lithotripsy; extraction of stones; ENBD
10	AS	AS; stone; suture	Type B	Balloon dilation; SSP
11	AS	AS; suture	Type B	Balloon dilation; MSP
12	AS	AS	Type B	Balloon dilation; MSP
13	AS, stone	AS; stone	Type A	Extraction of stones; ENBD
14	NAS; stone	AS; stone	Type B	Extraction of stones; MSP
15	AS	AS	Type A	CAGP; bougienage; SSP
16	AS	AS	Type A	CAGP; bougienage; SSP
17	AS	AS	Type A	Balloon dilation; SSP
18	AS	AS	Type C	ENBD
19	NAS	NAS; AS	Type B	MSP

AS: Anastomotic stricture; non-AS: Non-anastomotic stricture; DSOC: Digital single-operator peroral cholangioscopy; ERCP: Endoscopic retrograde cholangiopancreatography; CAGP: Cholangioscopy-assisted guidewire placement; SSP: Single plastic stent placement; MSP: Multiple plastic stent placement; ENBD: Endoscopic nasobiliary drainage.