What Researchers Did
Researchers investigated whether applying positive nasopharyngeal pressure could prevent ear barotrauma in eight healthy male volunteers exposed to increasing hyperbaric chamber pressures.
What They Found
At 5 kPa chamber pressure, the tympanic cavity pressure was significantly higher in the intervention group (-11.2 daPa) compared to controls (-168.6 daPa, P 0.05).
What This Means for Canadian Patients
This research suggests that applying positive nasopharyngeal pressure might help prevent ear barotrauma for Canadian patients exposed to moderate pressure changes, such as during air travel or mild hyperbaric treatments. This could potentially reduce discomfort and complications associated with pressure changes affecting the ears.
Canadian Relevance
This study has no direct Canadian connection as it was conducted elsewhere and did not involve Canadian participants or institutions.
Study Limitations
A limitation of this study is its small sample size of eight healthy male volunteers, which may limit the generalizability of the findings.