Decompression comparison of helium and hydrogen in rats.
R S Lillo, E C Parker, W R Porter · Journal of applied physiology (Bethesda, Md. : 1985) · 1997
Research-use notice
Independent study record
Each H2HUBB study page organizes source-linked research details for educational use. Interpretation should remain proportional to the study design, population, controls, and limitations.
H2HUBB TAKEAWAY
In this animal study, the authors report that H2 potency for causing decompression sickness was found to be up to 35% greater than that for He.
What the Researchers Studied
Source-reported study description: The hypothesis that there are differences in decompression risk between He and H2 was examined in 1,607 unanesthetized male albino rats subjected to dives on 2% O2-balance He…
Source-reported study description: The animals were decompressed to 10.8 ATA with profiles varying from rapid to slow, with up to four decompression stops of up to 60 min each.
What the Study Found
The authors reported: Maximum likelihood analysis was used to estimate the relative decompression risk on a per unit pressure basis (termed "potency") and the rate of gas uptake and elimination, both…
What the Findings Mean
The authors concluded/reported: H2 potency for causing decompression sickness was found to be up to 35% greater than that for He.
Study Details
Publication type: animal_study
Evidence source level: B_ABSTRACT
Original scholarly source: https://pubmed.ncbi.nlm.nih.gov/9074979/