Electrosurgery includes;
Electrofulguration (results in sparks)
Electrodesiccation (dehydration of superficial tissue)
Electrocoagulation (cause bleeding blood vessels to clot)
Electrosection (cut through tissue)
Thermocautery: Radiofrequency devices (very high frequency, for cutting [>1,500kHz])
Electrosurgery may be monoterminal, monopolar or bipolar.
Note: The term electrocautery is most often used in reference to a device in which a direct current is used to heat the cautery probe, therefore no current flows through the patient.