What Researchers Did
Researchers retrospectively examined all neurological altitude decompression sickness (DCS) cases among U-2 pilots between 2002 and 2009.
What They Found
During 2002-2009, there were 16 confirmed incidents of central nervous system (CNS) decompression sickness (DCS) involving 13 U-2 pilots, plus 4 possible incidents. Twelve of these 16 confirmed incidents, including 4 of 5 life-threatening cases, occurred at a single operating location. In 11 cases, symptoms were recognized well after 4 hours, and neuropsychiatric symptoms persisted for years in six pilots.
What This Means for Canadian Patients
While this study focuses on U.S. military pilots, its findings on neurological decompression sickness (DCS) highlight the importance of prompt symptom recognition and treatment for individuals exposed to high-altitude or diving environments. Canadian patients experiencing symptoms consistent with DCS, especially those with occupational or recreational exposure, should seek immediate medical attention for potential hyperbaric oxygen therapy.
Canadian Relevance
This study specifically examines U.S. Air Force U-2 pilots and does not have a direct Canadian connection.
Study Limitations
The study was limited by its reliance on existing, often incomplete data sources due to the urgency of the investigation.