Halothane biotransformation in anesthetists

Area of Science:

• Occupational Health
• Clinical Chemistry

Background:

• Halothane is an anesthetic agent.
• Anesthetic exposure can lead to occupational health risks.

Purpose of the Study:

• To investigate serum bromide levels in anesthetists exposed to halothane.
• To determine the relationship between halothane exposure and bromide levels.

Main Methods:

• Serum bromide levels were measured using x-ray fluorescence spectrometry in 115 anesthetists.
• Kinetic studies were performed on five anesthetists after ten days of halothane exposure.

Main Results:

• Bromide levels were significantly higher in regularly exposed (184 +/- 21 micron) and sporadically exposed (58 +/- 4 micron) anesthetists compared to nonexposed (46 +/- 3 micron).
• Mean serum bromide increased from 40 +/- 4 micron to 220 +/- 36 micron after ten days of halothane exposure, with a half-life of 14 +/- 1.7 days.
• Halothane debromination occurred in a dose-related manner.

Conclusions:

• Anesthetists debrominate halothane in a dose-dependent manner.
• Occupational halothane exposure leads to elevated serum bromide levels.
• Achieved serum bromide levels are below the threshold for clinical bromism.