Surgical smoke and ultrafine particles

Area of Science:

• Environmental Health
• Occupational Health
• Surgical Technology

Background:

• Surgical smoke generated by electrocautery, laser ablation, and ultrasonic dissection contains ultrafine particles (<100 nm) and accumulation mode particles (<1 µm).
• Particulate air pollution is associated with adverse cardiovascular and respiratory health effects, raising concerns about surgical smoke exposure.

Purpose of the Study:

• To quantify particle number concentration in surgical smoke during various surgical procedures.
• To assess the exposure levels of operating room personnel to surgical smoke particulates.

Main Methods:

• Utilized a condensation particle counter (CPC, model 3007, TSI Inc.) to measure particulate matter.
• Quantified particle number concentration in the operating room environment during surgical procedures.

Main Results:

• Electrocauterization and argon plasma coagulation produced high concentrations (>100,000 cm⁻³) of particles (10 nm to 1 µm).
• Peak particle concentrations were localized near the source, with rapid dissipation in well-ventilated rooms.
• Short-term, high-level exposure to ultrafine particles occurred for surgeons and nearby staff.

Conclusions:

• Surgeons and operating room personnel experience intermittent, high-level exposure to ultrafine particles from surgical smoke.
• Effective ventilation systems can mitigate the accumulation of particles in the operating room.