The Science Journal of the American Association for Respiratory Care
Background: Electrostatic charge of some plastics has been shown to reduce aerosol delivery from metered-dose inhalers through spacer devices. The effects of these electrostatic charges were reduced with application of de-ionizing soap solutions such a common dish soap.
Methods: To determine if the electrostatic charge in endotracheal tubes reduces aerosol delivery, four puffs of albuterol (360
Results: Aerosol delivery through the endotracheal tube from the package (28.91.6%) and after rinsing with tap water (29.50.35%) were similar. Washing the endotracheal tube with de-ionizing soap resulted in improved aerosol delivery (34.60.46%; p<0.02).
Discussion: Use of a de-ionizing soap (shown to reduce electrostatic charge) significantly improved aerosol delivery in both brands of endotracheal tube tested. Materials with less electrostatic charge in endotracheal tubes may improve aerosol delivery.
Conclusion: Washing endotracheal tubes with de-ionizing dish soap improves aerosol delivery of albuterol from a MDI during mechanical ventilation.