Surgical diathermy is the use of high frequency alternative polarity radio-wave electrical current to cut or coagulate tissue during surgery. Surgical diathermy also known as electrocoagulation is the coagulation of tissue usually by means of an electrocautery with a biterminal high frequency electric current

Applications of high-frequency electrocautery in cutting and coagulation modes produce odorous smoke from tissue pyrolysis. Many chemical and biological particles have been found in surgical smoke. Hence, surgical smoke is a consequence of the heat generated by electrosurgical tools. Surgical smoke is anirritant, as it has a nauseatingsmell and can hamper the surgeons view of the surgical site. It is very much recommended to follow the standardised guidelines for surgical smoke safety.

The use of precise suction or extraction procedures for surgical smoke has been suggested by many irrespective of contact duration or concentration level. High efficiency particulate air filters (HEPA) is another commendation to decrease the threats of surgical smoke. The practise of surgical diathermy is mainly for the comfort and well-being of the surgeons and not for any direct benefit of the patient. Surgical smoke carries full virus particle(such as COVID-19 virus), it is muscularlysuggested to reduce or avoid electrocautery during the COVID-19 outbreak.

Source: J Orthop. 2020 May 16;20:297-300