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An avoidable occupational hazard during mastoid surgery.

F J Lannigan¹, N S Jones, M V von Schoenberg

¹E.N.T. Department, Guy's Hospital, London.

The Journal of Laryngology and Otology

|June 1, 1989

Summary

Conjunctival inoculation, a risk during mastoid surgery, can spread droplet contamination. Eye protection is recommended for otologists and assistants when drilling during mastoid procedures to prevent exposure.

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Area of Science:

Otolaryngology
Surgical Safety
Infectious Disease Transmission

Background:

Mastoid surgery involves drilling near the mastoid antrum.
Potential for droplet contamination to the conjunctiva is a recognized risk in surgical settings.
Previous literature has not specifically addressed conjunctival inoculation during otologic procedures.

Purpose of the Study:

To investigate the risk of conjunctival inoculation from droplet contamination during mastoid surgery.
To assess the extent of droplet spread during temporal bone dissection.
To provide evidence-based recommendations for eye protection in otologic surgery.

Main Methods:

Simulated temporal bone dissection was performed.
Droplet contamination spread was visualized and quantified.

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Surgical field parameters were monitored during drilling of the mastoid antrum.

Main Results:

Significant droplet contamination was observed during mastoid antrum drilling.
The spread of droplets poses a risk of conjunctival inoculation to the surgeon and assistant.
Contamination was evident even with standard surgical protocols.

Conclusions:

Conjunctival inoculation represents an unrecognized hazard for otologists during mastoid surgery.
Eye protection is crucial for otologists and assistants during mastoid drilling.
Implementing routine eye protection can mitigate the risk of droplet-related infections.