What Researchers Did
Researchers conducted a prospective study on 82 patients receiving long-term hyperbaric oxygen therapy to assess the incidence and severity of middle ear barotrauma.
What They Found
Of 82 patients, 24 (29.3%) required ventilation tube insertion for ear pain, with a significant association found in those with head and neck radionecrosis (P < 0.01). Among the remaining patients, 5 ears (8%) showed significant barotrauma via otoscopy, while only 1 ear (2%) showed effusion via tympanometry, indicating otoscopy is a more reliable screening method.
What This Means for Canadian Patients
Canadian patients undergoing hyperbaric oxygen therapy, particularly those with head and neck radionecrosis, should be aware of the risk of middle ear barotrauma. Regular otoscopic assessment is crucial for early detection and management of this complication, as tympanometry may not reliably identify these changes.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
A limitation is that only a subset of patients without ventilation tubes underwent specialist ENT assessment, potentially affecting the overall incidence data.