What Researchers Did
Researchers reviewed patient records from a US Air Force hyperbaric medicine division to assess the usefulness of a pressure cuff test in diagnosing Type I decompression sickness.
What They Found
Records from 1985-1989 showed 179 patients were treated with recompression for extremity pain. The pressure cuff test was used as a diagnostic aid in 87 of these patients. Only 53 patients (61%) with diagnosed Type I decompression sickness experienced pain relief with the cuff test.
What This Means for Canadian Patients
For Canadian patients experiencing extremity pain after diving or high-altitude exposure, a simple pressure cuff test might not reliably confirm or rule out Type I decompression sickness. This suggests that if DCS is suspected, a hyperbaric chamber test is a more definitive way to diagnose the condition.
Canadian Relevance
This study covers decompression sickness, which is a Health Canada-recognised indication for hyperbaric oxygen therapy. However, the study itself was not conducted in Canada and did not involve Canadian authors.
Study Limitations
The study's main limitation is that the pressure cuff test was not reliable enough to definitively rule out decompression sickness, meaning a negative result could be misleading.