ISSN 1305-3825 | E-ISSN 1305-3612
Interventional Radiology - Original Article
Dual-balloon infusion microcatheter for selective drug-eluting bead transarterial chemoembolization: initial feasibility study
1 Division of Interventional Radiology, Department of Radiology, University of Washington Medical Center, Seattle, WA, USA  
2 Division of Interventional Radiology, Department of Radiology David Geffen School of Medicine, University of California, Los Angeles, USA  
3 TRA Medical Imaging, Tacoma, WA, USA  
Diagn Interv Radiol 2017; 23: 454-460
DOI: 10.5152/dir.2017.17059
Abstract

PURPOSE: We aimed to demonstrate feasibility of the use of a dual-balloon infusion microcatheter for segmental/subsegmental drug-eluting bead transarterial chemoembolization (DEB-TACE).

 

METHODS: Over a 16-month period, 15 segmental and 21 subsegmental DEB-TACE procedures were attempted using a dual-balloon anti-reflux microcatheter (IsoFlow™ microcatheter, Vascular Designs Inc.) in 21 patients (15 males; median age, 61 years; range, 49–82 years) with hepatocellular carcinoma (Barcelona clinic liver cancer stage A [n=4]; B [n=12]; C [n=5]) with one to three tumors, median size of 3.4 cm (1.2–9 cm).  Follow-up enhanced computed tomography or magnetic resonance imaging was obtained at one month then subsequently every three months for one year. Technical success was evaluated. Modified RECIST criteria was used for target tumor response assessment. Safety was evaluated by assessing for arterial injury and hepatic injury at the time of the procedure and subsequent evidence of complications and liver toxicity.

 

RESULTS: In 26 of the procedures, the segmental/subsegmental arteries were thought not to be easily selected with standard microcatheters due to the arterial branches being severely tortuous/angulated or atretic from prior TACE or anti-angiogenic therapy or could not be catheterized. Radiologic response assessment of treated tumors demonstrated 32% complete response, 19% partial response, 34% stable disease, and 15% progressive disease.  No complications occurred. The median time to progression for the targeted tumors was 7 months (range, 3–12 months).

 

CONCLUSION: DEB-TACE, using this dual-balloon anti-reflux infusion microcatheter is feasible and safe.

 

 

You may cite this article as: Monsky WL, Padia SA, Hardy AH. Dual-balloon infusion microcatheter for selective drug-eluting bead transarterial chemoembolization: initial feasibility study. Diagn Interv Radiol 2017; 23:454–460.

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