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Persistent extravascular bubbles on radiologic imaging after recompression treatment for decompression sickness: A
Juan C Dapena1,2, Corine A Lansdorp3, Simon J Mitchell4,5
1Navy Medicine Operational Training Center, Hyperbaric Medicine Department, Pensacola (FL), USA.
Diving and Hyperbaric Medicine
|December 16, 2020
Summary
Decompression sickness (DCS) treatment with hyperbaric oxygen may not fully resolve all bubbles. This case report shows large extravascular bubbles persisting after standard DCS treatment.
Area of Science:
- Diving Medicine
- Hyperbaric Medicine
- Radiology
Background:
- Decompression sickness (DCS) occurs due to inert gas bubbles forming in tissues during depressurization.
- Standard treatment involves 100% oxygen and recompression, often assumed to resolve bubbles.
- Further hyperbaric treatments aim to improve oxygen delivery and reduce inflammation.
Observation:
- A diver diagnosed with DCS received two US Navy Treatment Table 6 recompressions.
- CT imaging revealed multiple persistent extravascular bubbles post-treatment.
Findings:
- Contrary to common assumptions, large extravascular bubbles can remain visible after definitive hyperbaric treatment for DCS.
- This challenges the belief that standard recompression protocols eliminate all DCS-related bubbles.
Implications:
- Findings suggest current hyperbaric treatment protocols for DCS may not be universally effective in complete bubble resolution.
- Further research is needed to understand the persistence of extravascular bubbles and optimize DCS management.
- Advanced imaging may play a crucial role in assessing treatment efficacy in DCS cases.
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