What Researchers Did
Researchers conducted a retrospective study on 546 decompression illness patients in Finland to investigate factors influencing recompression delay and treatment outcome.
What They Found
They found that delayed hyperbaric oxygen treatment (> 48 hours) remained effective, with outcomes similar to those treated within 48 hours. Cardio-pulmonary symptoms were linked to a shorter treatment delay (median 15 hours), while mild sensory symptoms were associated with a longer delay (48 hours). Tinnitus and hearing impairment led to a higher proportion of incomplete recoveries (78% and 73% respectively).
What This Means for Canadian Patients
Canadian patients experiencing decompression illness should be aware that even delayed hyperbaric oxygen treatment can be effective. However, prompt treatment is still beneficial, especially for certain symptoms, and may reduce the number of treatments needed.
Canadian Relevance
This study was conducted in Finland and does not have a direct Canadian connection.
Study Limitations
As a retrospective study, limitations include reliance on existing medical records and potential for unmeasured confounding factors.