Abstract
Background
Endoscopic irreversible electroporation (IRE) can be performed using a flexible, thin, needle-shaped electrode for an endoscopic ultrasound (EUS)-guided procedure. This study aimed to evaluate the feasibility and efficacy of performing EUS-guided IRE with endoscopic needle-electrode in porcine pancreas.
Methods
Experimental endoscopic IRE on the pancreas were performed by EUS-guided approach in three pigs and compared with surgical approach in three pigs. The animals were killed after 24 h and their pancreases collected.
Results
IRE ablation using endoscopic needle-electrode was successful technically in EUS-guided approaches for the pancreas. Immediately following IRE, the ablated pancreatic tissue showed no gross change except focal hemorrhage. H&E staining presented a well-demarcated ablation site measuring 1.0–1.5 cm in diameter in the pancreas. TUNEL immunohistochemistry showed diffuse cell death along the puncture site 24 h after IRE. No complication was observed in pigs after endoscopic IRE ablation.
Conclusion
EUS-guided IRE ablation was feasible and effective for pancreas using the newly developed device.
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Acknowledgements
This study was supported by a College of Medicine, Korea University Grant (No. K1523601) and the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2018R1C1B6006044).
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Authors Jae Min Lee, Hyuk Soon Choi, Hoon Jai Chun, Eun Sun Kim, Bora Keum, Yeon Seok Seo, Yoon Tae Jeen, Hong Sik Lee, Soon Ho Um, Chang Duck Kim, and Hong Bae Kim have no conflicts of interest or financial ties to disclose.
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Lee, J.M., Choi, H.S., Chun, H.J. et al. EUS-guided irreversible electroporation using endoscopic needle-electrode in porcine pancreas. Surg Endosc 33, 658–662 (2019). https://doi.org/10.1007/s00464-018-6425-4
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DOI: https://doi.org/10.1007/s00464-018-6425-4