Table 1: Patients with exclusion criteria.

Criteria

n (%)

Short-term follow-up*

2 (16.7)

Did not attend follow-up (untraceable)

2 (16.7)

Still in the process of dilatation

6 (50.0)

Technical failure

2 (16.7)

Total

12 (100.0)

* The dilatation protocol came to term with biliary patency demonstrated by cholangiography, but follow-up is <12 months.