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Updated: Oct 18, 2026
Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Treatment of unresectable hepatic hilar malignancies with self-expanding metallic stents
1First Department of Surgery, Chiba University School of Medicine, Japan.
Background/Aims:
This study assesses the treatment of biliary obstruction in patients with hilar malignancies by metallic stents.
Methodology:
Twenty-one consecutive patients with unresectable malignant biliary obstruction at the hepatic hilum (Bismuth type II, III and IV) were treated with percutaneous transhepatic placement of self-expandable metallic endoprostheses. The endoprostheses were successfully inserted in all patients. In 12 patients all segments of the liver were drained and in 9 patients partial segments of the liver were drained.
Results:
Seventeen patients (81%) showed relief from jaundice and could be freed of external drainage tubes. Ten patients (48%) showed no recurrent symptoms due to stent obstruction until death. Overall survival was 4.86+/-4.15 (mean+/-SD) months, stent patency was 3.76+/-3.64 months and comfort index representing a ratio of well-being was 70.5+/-38.3%. There was no significant difference in survival rate, stent patency or comfort index between the groups with complete and those with partial drainage.
Conclusions:
Even in patients with complicated hepatic hilar biliary occlusions, internal drainage using metallic stents can relieve jaundice and leave patients free of external tubes with a comfortable quality of life.