Impact of Hyperoxia and Involvement of the Immune System in Diving Accident (OXYDIVE)
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- STATUS
- Recruiting
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- End date
- Mar 30, 2028
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- participants needed
- 265
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- sponsor
- Direction Centrale du Service de Santé des Armées
Summary
The impact of oxygen therapy in many pathologies has been subject of recent work, arguing both favourable and harmful effects. Consequently, one can wonder about the influence of hyperoxic gas mixture during diving on the genesis of decompression sickness, but also about the systematic application of normobaric and hyperbaric oxygen in case of proven decompression sickness.
In mammals, normoxic concentrations have been redefined at 20-100 mbars at the extracellular level and below 10 mbars in the mitochondria.
Under hyperbaric conditions, most of the oxygen being dissolved in blood plasma, a state of hyperoxia is established which escapes the usual delivery and regulation system represented by red blood cells.
The results of our team's previous work suggest a specific effect of diving on the levels of circulating mitochondrial DNA (mtDNA), suggesting cellular destruction linked to hyperoxia/hyperbaria. In fact, our studies, carried out on both animals and human divers, have shown that diving accident leads to an increase in mtDNA levels and an immune reaction through the mobilisation of leukocytes.
The main objective of this study is to compare the influence of oxygen partial pressure levels on the evolution of clinical and biological variables during hyperbaric oxygen therapy sessions in healthy versus injured divers.
Details
| Condition | Decompression Sickness |
|---|---|
| Treatment | Hyperbaric oxygen therapy, Diving simulation |
| Clinical Study Identifier | NCT04791488 |
| Sponsor | Direction Centrale du Service de Santé des Armées |
| Last Modified on | 1 May 2022 |
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