Electrocautery for ESD

Abstract

The electrosurgical unit (ESU) is an essential tool in endoscopic treatment. It creates the necessary electronic current to create thermal energy in the target tissue delivered by endoscopic devices (e.g. snare, probes, and forceps). Advancement of ESUs has helped ESD procedure tremendously making it safer and more efficient. ESUs have their various modes specific to the company. In order to understand the theoretical basics and to benefit by help selecting the appropriate mode for each step of ESD, basic knowledge of electric current and energy are explained in the context of ESD procedure, and most used ESU settings are discussed on each specific modes. The optimal application of electrosurgical waveforms in ESD is as much an art as it is science.