Surgical smoke - what are the risks? 2019

Question 1

What are sizes of the particles generated from
Electrosurgery
Laser
USS

Answer 1

Electrosurgery 0.07
Laser 0.31
USS 0.35-6.5um

Question 2

Way size of particle are
1) inhalable
2) Deposit in walls of nose pharynx and trachea
3) Penetrate into alveolar region

Answer 2

1) inhalable <10um
2) Deposit in walls of nose pharynx and trachea 5um
3) Penetrate into alveolar region <2.5um

Question 3

Up to what size particle is filter by surgical mask?

Answer 3

5 micrometers

Question 4

How often should a ventilation system exchange the air in theatre per hour

Answer 4

15

Question 5

For smoke capturing nozzle, how effective is the device at 1cm and 2cm from operation site

Answer 5

1cm 98%
2cm 50%