What Researchers Did
Researchers investigated the relationship between the ability to perform insuflation maneuvers before hyperbaric oxygen therapy and the occurrence of middle ear barotrauma.
What They Found
They found that 39% (32 of 82) of ears developed barotrauma after the first session of hyperbaric oxygen therapy. The rate of middle ear barotrauma was significantly higher in ears with Median (44.4%) and Bad (55.6%) tubal insuflation compared to those with Good insuflation (17.9%, P = 0.013). Positive Valsalva and Toynbee maneuvers before treatment were identified as protective factors.
What This Means for Canadian Patients
Canadian patients undergoing hyperbaric oxygen therapy could benefit from pre-treatment assessment of their ability to perform ear equalization maneuvers. Improving insuflation techniques before therapy may help reduce the risk of middle ear barotrauma.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
A limitation of this study is its reliance on a convenience sample from a single department, which may limit the generalizability of the findings.