Electrosurgical generators and monopolar and bipolar electrosurgery

Area of Science:

• Surgical Technology
• Biophysics
• Medical Devices

Background:

• Electrosurgery is a common yet misunderstood surgical tool.
• Lack of knowledge among surgeons leads to thermal injuries during laparoscopic procedures.
• These injuries result in significant patient harm, mortality, and medicolegal actions.

Purpose of the Study:

• To describe the fundamental principles of electrosurgery.
• To identify the inherent risks and complications associated with electrosurgery, particularly monopolar radiofrequency (RF).
• To provide practical solutions for mitigating these risks in clinical practice.

Main Methods:

• Explanation of electron generation and physical characteristics.
• Description of electrosurgical unit (ESU) function and radiofrequency (RF) application.
• Analysis of monopolar vs. bipolar configurations and associated risks.

Main Results:

• Electrosurgery utilizes RF energy to cut or coagulate tissue without neuromuscular stimulation.
• Monopolar electrosurgery carries unique risks like capacitive coupling and insulation failure, especially in complex laparoscopic procedures.
• Surveys show high usage of monopolar RF in laparoscopy with significant rates of visceral burns and litigation.

Conclusions:

• A thorough understanding of electrosurgery biophysics is crucial for safe surgical practice.
• Implementing suggested solutions based on good clinical practice can minimize electrosurgery-related complications.
• Enhanced surgeon education on electrosurgery is vital to prevent patient harm and medicolegal issues.