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Intraductal Cooling via a Nasobiliary Tube During Radiofrequency Ablation of Central Liver Tumors Reduces Biliary Injuries. AJR Am J Roentgenol 2015 Jun;204(6):1329-35



Pubmed ID




Scopus ID

2-s2.0-84937682896 (requires institutional sign-in at Scopus site)   9 Citations


OBJECTIVE: The objective of our study was to determine the safety and efficacy of intraductal perfusion of chilled 5% dextrose in water (D5W) via an endoscopic nasobiliary tube (NBT) for the prevention of thermal bile duct injury in patients undergoing percutaneous radiofrequency ablation (RFA) of central liver tumors.

MATERIALS AND METHODS: We performed a retrospective study comparing outcomes of 32 consecutive patients who underwent percutaneous RFA of central liver tumors without intraductal perfusion of chilled D5W (control cohort) and 14 consecutive patients who underwent temporary intraductal perfusion of chilled D5W at 2 mL/s via endoscopic NBT placement before RFA (endoscopic NBT cohort). The primary and secondary outcomes were the rate of biliary complications and local tumor progression, respectively.

RESULTS: All patients tolerated the procedures well. There was a significantly lower rate of biliary complications in the endoscopic NBT cohort (0/14 patients, 0%) than in the control cohort (10/32 patients, 31%) (p < 0.03) with a trend toward improved preservation of liver function in the endoscopic NBT cohort (12/14 patients, 86%) compared with the control cohort (20/32 patients, 62%) (p = 0.05). There was no difference in the rate of local tumor progression between the endoscopic NBT cohort (4/19 tumors, 21%) and the control cohort (9/39 tumors, 23%) (p = 1.0).

CONCLUSION: Perfusion of chilled water through an endoscopic NBT helps prevent thermal biliary injury during RFA of central liver tumors without increasing rates of local tumor progression.

Author List

Felker ER, Lee-Felker SA, Ajwichai K, Tan N, Lu DS, Durazo FA, Raman SS


Francisco A. Durazo MD Professor in the Medicine department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Biliary Tract
Burns, Electric
Catheter Ablation
Equipment Design
Equipment Failure Analysis
Hypothermia, Induced
Liver Neoplasms
Retrospective Studies
Treatment Outcome