Irreversible electroporation: Beyond the limits of tumor ablation

Abstract

Irreversible Electroporation (IRE) is a non-thermal tumor ablation technique. High-voltage electrical pulses are applied between pairs of electrodes inserted around and/or inside a tumor. The generated electric current induces the creation of nanopores in the cell membrane, triggering apoptosis. As a result, IRE can be safely used in areas near delicate vascular structures where other thermal ablation methods are contraindicated. Currently, IRE has demonstrated to be a successful ablation technique for pancreatic, renal, and liver tumors and is widely used as a focal therapeutic option for prostate cancer. The need for specific anesthetic management and accurate parallel placement of multiple electrodes entails a high level of complexity and great expertise from the interventional team is required. Nevertheless, IRE is a very promising technique with a remarkable systemic immunological capability and may impact on distant metastases (abscopal effect).

Keywords: Ablation techniques; Electroporación; Electroporación irreversible; Electroporation; Immunotherapy; Inmunoterapia; Interventional; Irreversible electroporation therapy; Liver neoplasms; Medical oncology; Neoplasias hepáticas; Neoplasias pancreáticas; Neoplasias renales; Oncología; Pancreatic neoplasms; Radiology; Radiología; Radiología intervencionista; Renal neoplasm; Técnicas ablativas.