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Irreversible Electroporation of the Hepatobiliary System: Current Utilization and Future Avenues
Govindarajan Narayanan1,2,3, Yilun Koethe4, Nicole Gentile1
1Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA.
Abstract:
Liver cancer remains a leading cause of cancer-related deaths worldwide despite numerous advances in treatment. While surgical resection remains the gold standard for curative treatment, it is only possible for a minority of patients. Thermal ablation is an effective option for the treatment of smaller tumors; however, its use is limited to tumors that are not located in proximity to sensitive structures due to the heat sink effect and the potential of thermal damage. Irreversible electroporation (IRE) is a non-thermal ablative modality that can deliver targeted treatment and the effective destruction of tumors that are in close proximity to or even surrounding vascular or biliary ducts with minimal damage to these structures. IRE produces short pulses of high-frequency energy which opens pores in the lipid bilayer of cells leading to apoptosis and cell death. IRE has been utilized clinically for over a decade in the treatment of liver cancers with multiple studies documenting an acceptable safety profile and high efficacy rates.
Insights
Irreversible electroporation (IRE) offers a novel, non-thermal approach for liver cancer treatment, effectively destroying tumors near sensitive structures. This method shows promise for patients unsuitable for surgery or traditional thermal ablation.
Area of Science:
- Oncology
- Medical Physics
- Hepatology
Background:
- Liver cancer is a major global health concern with limited curative options.
- Surgical resection is effective but only feasible for a small subset of patients.
- Thermal ablation is limited by proximity to vital structures due to heat sink effects and potential thermal damage.
Purpose of the Study:
- To evaluate Irreversible electroporation (IRE) as a non-thermal ablative treatment for liver cancer.
- To highlight IRE's efficacy in treating tumors near sensitive structures like vascular and biliary ducts.
- To review the safety and efficacy profile of IRE in clinical practice for liver cancer.
Main Methods:
- Utilizing short pulses of high-frequency energy to induce irreversible pores in cell membranes.
- Employing a non-thermal ablation technique to target tumor cells.
- Clinical application and review of existing studies on IRE for liver cancer.
Main Results:
- IRE effectively destroys tumor cells by inducing apoptosis via electroporation.
- Minimal damage to adjacent vascular and biliary structures is achieved.
- Clinical use over a decade demonstrates an acceptable safety profile and high efficacy rates for liver cancer treatment.
Conclusions:
- Irreversible electroporation is a viable and effective non-thermal ablative treatment for liver cancer.
- IRE overcomes limitations of thermal ablation, particularly for tumors near critical anatomical structures.
- IRE presents a safe and effective therapeutic option for a broader range of liver cancer patients.
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