What Researchers Did
Researchers investigated how hyperbaric oxygen therapy affects the parotid glands of patients who previously received radiation for head and neck cancer.
What They Found
Before HBOT, irradiated parotid glands showed significantly higher mean T2 values (121 ± 20 ms) compared to the non-irradiated side (107 ± 21 ms) and healthy controls (96 ± 12 ms). Patients received 20 daily HBOT sessions at 2.5 ATA, breathing 100% oxygen for 90 minutes. The study found that T2 mapping could help monitor differences between irradiated and normal glands and assess the tissue's response to HBOT.
What This Means for Canadian Patients
For Canadian patients who have undergone radiation therapy for head and neck cancers, this research suggests that T2 mapping using MRI could be a valuable tool. It may help doctors monitor the health of their parotid glands and assess how well hyperbaric oxygen therapy is working to treat radiation-induced damage. This could lead to more personalized and effective treatment plans for improving salivary gland function.
Canadian Relevance
This study covers delayed radiation injury, which is a Health Canada-recognised indication for hyperbaric oxygen therapy.
Study Limitations
The study involved a small number of patients (18) and primarily focused on imaging changes rather than direct clinical improvements in salivary function.