What Researchers Did
Researchers ran a randomized, double-blind, placebo-controlled trial to test whether pseudoephedrine given before hyperbaric oxygen treatment prevents middle ear barotrauma in first-time patients.
What They Found
There was no statistically significant difference between pseudoephedrine and placebo for ear pain, tympanic membrane injury, or need for rescue medication. Pseudoephedrine did not reduce middle ear barotrauma rates or treatment delays in HBO patients.
What This Means for Canadian Patients
Ear discomfort is one of the most common reasons patients stop HBOT early. This trial suggests pre-treating with pseudoephedrine is not effective. Clinics should focus on equalization techniques (jaw movement, Valsalva maneuver) and slower pressurization. Patients experiencing ear pain during HBOT should alert staff.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
The study only examined patients on their first HBO session, so results may not apply to ongoing treatment or patients with known ear equalization difficulties.