Abstract
Purpose
Patients without a competent sphincter of Oddi due to prior surgical or endoscopic therapy are at high risk for liver abscess following chemoembolization despite aggressive antimicrobial prophylaxis. We examined a cohort of such patients undergoing Y-90 resin radioembolization and compared them to a cohort of chemoembolized patients.
Methods
Review of our quality-assurance database identified 24 radioembolizations performed in 16 patients with prior biliary intervention. An aggressive prophylactic regimen of oral levofloxacin and metronidazole 2 days pre-procedure continuing for 14 days after, oral neomycin/erythromycin bowel prep the day before, and IV levofloxacin/metronidazole the day of treatment was prescribed. Patients underwent resin microsphere radioembolization dosed according to the BSA method. Patients had clinical, imaging, and laboratory assessment 1 month after each treatment, and then every 3 months. The chemoembolization cohort consisted of 13 patients with prior biliary intervention who had undergone 24 chemoembolization procedures.
Results
No radioembolization patient developed an abscess. In the cohort of chemoembolized patients who received the same prophylaxis, liver abscess occurred following 3 of 24 (12.5 %) procedures in 3 of 13 (23 %) patients, one fatal.
Conclusions
This preliminary experience suggests that the risk of liver abscess among patients with prior biliary intervention may be lower following radioembolization than chemoembolization, which could potentially expand treatment options in this high-risk population.
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Conflict of interest
Michael Soulen is a paid speaker and proctor for Sirtex Medical; Aurada Cholapranee, Diana van Houten, Ginna Deitrick, Mandeep Dagli, Deepak Sudheendra, Jeffrey I. Mondschein: no conflict of interest.
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Cholapranee, A., van Houten, D., Deitrick, G. et al. Risk of Liver Abscess Formation in Patients with Prior Biliary Intervention Following Yttrium-90 Radioembolization. Cardiovasc Intervent Radiol 38, 397–400 (2015). https://doi.org/10.1007/s00270-014-0947-5
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DOI: https://doi.org/10.1007/s00270-014-0947-5