Hyperbaric medicine
medical treatments at raised ambient pressure
Hyperbaric medicine is the branch of medicine in which clinical therapies are delivered in pressurized vessels containing prescribed barometric pressures of gases such as air or oxygen. The immediate effects include reducing the size of gas emboli and raising the partial pressures of the gases present. Initial uses were in decompression sickness, and it is also effective in certain cases of gas gangrene and carbon monoxide poisoning. There are risks associated with hyperbaric therapy, including barotrauma, and, if pure oxygen is used, a fire hazard.
Hyperbaric oxygen therapy (HBOT) is the medical use of greater than 99% oxygen at an ambient pressure higher than atmospheric pressure, and therapeutic recompression. The equipment required consists of a pressure vessel for human occupancy (hyperbaric chamber), which may be of rigid or flexible construction, and a means of a controlled atmosphere supply. Treatment gas may be the ambient chamber gas, or delivered via a built-in breathing system. Operation is performed to a predetermined schedule by personnel who may adjust the schedule as required.
Hyperbaric air (HBA) consists of compressed atmospheric air (79% nitrogen, 21% oxygen, and minor gases) and is used for acute mountain sickness. This is applied by placing the person in a portable hyperbaric air chamber and inflating that chamber up to 14–28 kilopascals (2–4 psi) using a foot-operated or electric air pump.
Begin with the source’s own compact description: “Hyperbaric medicine” is medical treatments at raised ambient pressure. The dossier treats that line as a proposition to test through Hyperbaric, medicine and medical, not as a finished interpretation.
Why this record matters
The phrase “medical treatments at raised ambient pressure” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 6, 2026. The linked authority identifier is Q731615. The Library of Congress control number is sh85063671. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Hyperbaric medicine”, its source revision and the description used here.
- Expand the search: follow Hyperbaric medicine primary sources, Hyperbaric medicine archive and Hyperbaric research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Hyperbaric medicine”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Hyperbaric medicine” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.