RFA uses heat to destroy cancer cells. It’s mainly used to treat pre-cancerous changes to the cells in the oesophagus (Barrett’s oesophagus). It’s sometimes used after endoscopic mucosal resection (EMR).
RFA uses a probe called an electrode to apply an electrical current (radiofrequency) to the tumour. The electrical current heats the cells to high temperatures, which destroys (ablates) them. The cells die and the area that’s been treated gradually shrinks and becomes scar tissue. Some people may need to be treated more than once.