What Researchers Did
Researchers retrospectively reviewed the medical records of 31 consecutive patients with acute retinal artery occlusion (ARAO) who received hyperbaric oxygen treatment (HBOT) at Christchurch Hospital between 2003 and 2012.
What They Found
All 31 patients underwent at least one HBOT session (median 4, range 1-7) at 203-284 kPa for 1.5 to 2.0 hours. One patient's treatment was terminated early, another declined further HBOT, and one suffered middle ear barotrauma. Thirteen patients also received anticoagulants.
What This Means for Canadian Patients
This study suggests that hyperbaric oxygen treatment is a potential intervention for acute retinal artery occlusion, though its effectiveness requires further robust investigation. Canadian patients experiencing sudden visual loss due to ARAO might consider discussing HBOT as a treatment option with their specialists, recognizing the current lack of consensus.
Canadian Relevance
This study has no direct Canadian connection as it was conducted at Christchurch Hospital, which is not in Canada.
Study Limitations
The retrospective design and small sample size of 31 patients limit the generalizability and conclusive findings regarding hyperbaric oxygen treatment for acute retinal artery occlusion.