Reduced environmental exposure to aerosolized ribavirin using a simple containment system

Area of Science:

• Environmental Health
• Occupational Safety
• Pharmaceutical Science

Background:

• Healthcare workers face potential exposure to aerosolized ribavirin during patient treatment.
• Minimizing occupational exposure to potent antiviral drugs is crucial for worker safety.
• Existing containment methods like single oxyhoods may not fully prevent aerosol dissemination.

Purpose of the Study:

• To design and evaluate a double tent containment system for reducing aerosolized ribavirin exposure.
• To assess the system's efficacy in containing and evacuating airborne ribavirin.
• To compare the effectiveness of the new system against a standard single oxyhood.

Main Methods:

• A double tent containment system incorporating circulating mist and suction was developed.
• Air samples were collected using stationary pumps and personal breathing zone monitors during drug administration.
• Ribavirin concentrations in air samples were quantified using high-performance liquid chromatography (HPLC).

Main Results:

• The double tent system demonstrated a 5- to greater than 20-fold decrease in ambient ribavirin concentrations.
• Mean personal breathing zone concentration decreased from 566.0 µg/m³ (oxyhood alone) to 43.81 ± 33.40 µg/m³ with the containment system.
• Significant reduction in airborne drug levels was observed across multiple sampling locations.

Conclusions:

• The double tent containment system effectively reduces occupational exposure to aerosolized ribavirin.
• This system provides a simple and significant method for enhancing safety during ribavirin administration.
• Further research is needed to fully understand the long-term risks associated with residual exposure.