Percutaneous transhepatic biliary drainage versus endoscopic ultrasound-guided biliary drainage with primary metal stenting for unresectable malignant distal biliary obstruction.

Key Takeaways for GI Nurses

• In this multicenter European trial comparing EUS-guided biliary drainage (EUS-BD) with primary metal stenting to percutaneous transhepatic biliary drainage (PTBD) for unresectable malignant distal biliary obstruction, PTBD did not meet noninferiority criteria for technical success compared with EUS-BD (91.2% vs. 97.1%).
• Clinical success trended higher with EUS-BD in the intention-to-treat analysis (73.5% vs. 55.9%), suggesting EUS-BD may offer more reliable symptom and lab resolution when performed at experienced centers.
• Both procedures require specialized nursing support—EUS-BD in the endoscopy suite with sedation/anesthesia monitoring, and PTBD in interventional radiology with catheter care and external drain management—so nurses should understand the distinct pre-, intra-, and post-procedural workflows for each.
• Patient selection and center expertise matter: these outcomes reflect high-competence centers, reinforcing the importance of experienced multidisciplinary teams, including nursing staff familiar with each technique's nuances, in achieving optimal outcomes.

Clinical Relevance

For GI and endoscopy nurses, this study offers important comparative data on two increasingly used salvage techniques when ERCP fails or isn't feasible for malignant distal biliary obstruction. As EUS-BD with primary metal stenting becomes more widespread, nurses in endoscopy units should anticipate growing procedural volume and become familiar with the equipment, sedation requirements, and post-procedural monitoring specific to this technique—which differs meaningfully from traditional ERCP-based stent placement. Understanding the rationale for choosing EUS-BD over PTBD, and vice versa, helps nurses better educate patients and families about what to expect, including recovery trajectory and potential complications.

The finding that PTBD did not demonstrate noninferiority to EUS-BD—and that EUS-BD showed a trend toward higher clinical success—has practical implications for care coordination. Nurses often serve as the first point of contact for patients being triaged to either interventional radiology or advanced endoscopy, and this evidence may support institutional protocols favoring EUS-BD referral pathways when local expertise permits. Additionally, PTBD involves external drain management, which carries distinct nursing responsibilities around site care, drainage monitoring, and patient teaching for home management—burdens that may be reduced with successful internal EUS-BD stenting. Nurses working in both inpatient and outpatient settings should be prepared to counsel patients on these differences, particularly regarding quality-of-life considerations tied to external versus internal drainage systems.

From a professional development standpoint, this study underscores the value of procedural competency and center experience in achieving strong outcomes. Nursing teams supporting EUS-BD programs should pursue targeted training in device setup, stent deployment support, and recognition of procedure-specific complications such as bile leak, stent migration, or pneumoperitoneum. As this technique's evidence base matures, nurses have an opportunity to contribute to quality improvement initiatives, patient education materials, and standardized order sets that reflect current best practices for biliary drainage in unresectable malignancy.

Bottom Line

This trial suggests that EUS-guided biliary drainage with primary metal stenting may offer technical and clinical advantages over percutaneous transhepatic drainage for unresectable malignant distal biliary obstruction when performed at experienced centers, making it increasingly important for GI nurses to build competency in supporting this endoscopic approach and to help guide patients through the decision-making process between these two salvage drainage options.