Journal
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
Volume 48, Issue 5, Pages 1658-1668Publisher
SPRINGER
DOI: 10.1007/s00259-020-05079-0
Keywords
Radioembolization; Holmium-166; Colorectal cancer; Anti-reflux catheter; Surefire
Funding
- University Medical Center Utrecht
Ask authors/readers for more resources
The use of a Surefire(R) anti-reflux catheter did not result in a higher tumor to non-tumor activity concentration ratio in mCRC patients treated with Ho-166-radioembolization, nor did it result in improved secondary outcome measures.
Purpose The objective of this study was to investigate whether the use of an anti-reflux catheter improves tumor targeting for colorectal cancer patients with unresectable, chemorefractory liver metastases (mCRC) treated with holmium-166 (Ho-166)-radioembolization. Materials and methods In this perspective, within-patient randomized study, left and right hepatic perfusion territories were randomized between infusion with a Surefire (R) anti-reflux catheter or a standard microcatheter. The primary outcome was the difference in tumor to non-tumor (T/N) activity distribution. Secondary outcomes included the difference in infusion efficiency, absorbed doses, predictive value of Ho-166-scout, dose-response relation, and survival. Results Twenty-one patients were treated in this study (the intended number of patients was 25). The median T/N activity concentration ratio with the use of the anti-reflux catheter was 3.2 (range 0.9-8.7) versus 3.6 (range 0.8-13.3) with a standard microcatheter. There was no difference in infusion efficiency (0.04% vs. 0.03% residual activity for the standard microcatheter and anti-reflux catheter, respectively) (95%CI - 0.05-0.03). No influence of the anti-reflux catheter on the dose-response rate was found. Median overall survival was 7.8 months (95%CI 6-13). Conclusion Using a Surefire (R) anti-reflux catheter did not result in a higher T/N activity concentration ratio in mCRC patients treated with Ho-166-radioembolization, nor did it result in improved secondary outcomes measures.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available