What Researchers Did
Chinese researchers compared attention and executive brain function in 98 subarachnoid hemorrhage patients, 51 who received early HBOT alongside standard rehabilitation versus 47 who received only physical therapy.
What They Found
The HBOT group had a lower rate of delayed cerebral ischaemia (a dangerous post-hemorrhage complication) (P = 0.026) and significantly better executive control function at 6-month testing (P < 0.001). Basic attention functions like alerting and orienting did not differ between groups.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
Patient assignment to treatment groups was not randomised, which means sicker patients may have been less likely to receive HBOT, making the HBOT group appear to do better than it would in a true controlled trial.