Feasibility, efficacy, and safety of ventral caudal artery access for transarterial chemoembolization in a rat hepatocellular carcinoma model
Abstract Purpose Investigate the feasibility, efficacy, and safety of ventral caudal artery (VCA) approach for transarterial chemoembolization (TACE) in an orthotopic hepatocellular carcinoma (HCC) rat model. Methods Sixteen orthotopically established tumor-bearing Sprague-Dawley rats were divided i...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2025-07-01
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| Series: | BMC Gastroenterology |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s12876-025-04039-y |
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| Summary: | Abstract Purpose Investigate the feasibility, efficacy, and safety of ventral caudal artery (VCA) approach for transarterial chemoembolization (TACE) in an orthotopic hepatocellular carcinoma (HCC) rat model. Methods Sixteen orthotopically established tumor-bearing Sprague-Dawley rats were divided into two groups of eight each: drug-eluting bead transarterial chemoembolization (DEB-TACE) group and normal saline (NS) group. VCA was approached for transarterial procedures. Rats in DEB-TACE group and NS group received transarterial administration of doxorubicin-loaded microspheres and normal saline, respectively. In NS group, repeated transarterial procedures were attempted 3 days after initial procedures. The feasibility was evaluated based on success rate of VCA approach, proper hepatic artery catheterization, and transcatheter treatment. The efficacy was assessed according to tumor necrosis. Animal mortality and tail viability were observed for safety evaluation. In supplementary experiments, eight additional tumor-bearing rats were used to evaluate the repeatability of proper hepatic artery catheterization via VCA access at 14 days after initial transarterial procedures the same as the NS group. The safety during the 14 days was also evaluated. Results VCA was successfully approached in 16 rats at initial procedures. Catheterization of proper hepatic artery achieved success in 7 of 8 DEB-TACE group animals and 6 of 8 NS group animals at initial procedures. All 13 rats received subsequent DEB-TACE or NS injection. One animal in DEB-TACE group died within 24 h and no death was noted in NS group (14.29% vs. 0%, P = 1.000). Tail viability was normal within 3 days. Repeated transarterial procedures were successfully performed in 6 of 8 NS group animals. Tumor necrosis of DEB-TACE group was significantly higher than that of NS group (54.11 ± 22.31% vs. 11.15 ± 3.50%, P = 0.005). In supplementary experiments, repeated catheterization of proper hepatic artery via repeated VCA access was achieved in 7 of 8 rats that had undergone successful initial procedures. There was no death noted and the tail viability maintained normal during the 14 days after initial procedures. Conclusion VCA access is feasible, effective, safe for TACE in rat HCC model. |
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| ISSN: | 1471-230X |