Five Factors Decides The Electrosurgical Performance On The Target Tissues
the time in contact with the tissue;
the intensity of the current;
the frequency of the current;
the waveform of the current;
and the electrode size.
If these factors are well regulated, the surgeon can excise tissue with minimum damage while allowing for adequate histologic evaluation. The more advanced ESUs have microprocessors that adjust power output to maintain a constant preset level; as tissue resistance changes during the procedure, the output is automatically varied to maintain a uniform cut.