Principles of Electrosurgery in the OR
Tissue Effects Change as You Modify the Waveform
Electrosurgical Tissue Effects
Grounded Electrosurgical Systems
Isolated Electrosurgical Systems
Patient Return Electrode Monitoring Technology
Electrosurgery Safety Concerns During MIS
Capacitive Coupling During Endoscopy
Recommendations to Avoid Electrosurgical Patient Complications in MIS
Principles of Electrosurgery
Principles of Electrosurgery in the OR
Principles of electricity are relevant in the operating room. The electrosurgical generator is the source of the electron flow and voltage. The circuit is composed of the generator, active electrode, patient, and patient return electrode. Pathways to ground are numerous but may include the OR table, stirrups, staff members, and equipment. The patient’s tissue provides the impedance, producing heat as the electrons overcome the impedance.
*The circuit for the alternating current is depicted by arrows in opposite directions.