Percutaneous intraductal radiofrequency ablation for treatment of biliary stent occlusion: A preliminary result

Table 1 Procedure details

Ablation time (s)	90 (62-150)
Ablation repeats	3 (2-5)
Ablation energy (J)	2474 (1200-3600)
Stenosis length (mm)	35 (20-55)

Data are expressed as medians (range).

Table 2 Biochemical parameters before and after the procedure

Parameters	Pre-ablation	Post-ablation (day 3)	Normal
Bilirubin (μmol/L)	128 ± 65	63 ± 29	0-21
ALP (IU/L)	1240 ± 865	1032 ± 790	30-130
ALT (IU/L)	105 ± 58	79 ± 40	< 40
GGT (IU/L)	747 ± 729	720 ± 625	< 55
LDH (IU/L)	60 ± 84	311 ± 45	0-250
AST (IU/L)	98 ± 49	65 ± 34	< 40
CRP (mg/L)	15 ± 8	12 ± 7	0-5
Amylase (IU/L)	80 ± 15	79 ± 12	0-90