Evaluation of the drainage of unresectable hilar biliary strictures applying an original two-stage strategy combining retrograde approach as first line, completed if required by EUS-guided hepaticogastrostomy (HG) as second line

Aims Drainage of unresectable malignant hilar stenosis (MHS) is challenging with a risk of incomplete drainage by ERCP. The aim was to evaluate clinical, technical success rates and safety of sequential biliary drainage (SBD) strategy combining first an ERCP with stent placement in the right liver, followed in case of insufficiency, by EUS-guided HG