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characterized by greater than normal pressure or weight; applied to gases under greater than atmospheric pressure, or to a solution of greater specific gravity than another taken as a standard of reference.
hyperbaric oxygenation (HBO) exposure to oxygen under pressure greater than normal atmospheric pressure. This treatment is given to patients who, for various reasons, need more oxygen than they can take in by breathing in the normal atmosphere or using an oxygen mask. Called also high pressure oxygenation.

The patient is placed in a sealed enclosure called a hyperbaric chamber. Compressed air is introduced to raise the atmospheric pressure to several times normal. At the same time the patient is given pure oxygen through a face mask. The increase in atmospheric pressure forces enough air into the patient so that the pressure within the body equals that in the hyperbaric chamber. Thus all the tissues become flooded with more than the usual supply of oxygen. While the patient is in the chamber, pressure changes are controlled with extreme care to avoid injury to the lungs or other tissues.
Use of Hyperbaric Oxygenation. This treatment may be administered in many types of disorders in which oxygen supply is deficient. If, because of injury or disease, the heart or lungs are unable to maintain good circulation and oxygenation, the increase in oxygen can temporarily compensate for this reduction. If injury or disease has caused the breaking or blocking of arteries, an extra supply of oxygen in the vessels that are still functioning will help.

Decompression sickness related to diving is one of the most common uses for hyberbaric oxygen therapy. The effectiveness of this therapy has also been demonstrated for treatment of arterial gas emboli, treatment and prevention of bone damage caused by radiation therapy, and treatment of clostridial myonecrosis. It is also sometimes used to promote healing in skin grafts.

Carbon monoxide poisoning can also be treated by hyperbaric oxygenation. Carbon monoxide, displacing the oxygen from hemoglobin, usually causes asphyxiation, but hyperbaric oxygenation can often keep patients alive until the carbon monoxide has been eliminated from the body.

Claims have been advanced about the effectiveness of hyperbaric oxygenation for a wide variety of disorders and diseases, including cancer, neurological disorders, and arthritis. To date, there have been no randomized clinical trials supporting such uses.


saturation with oxygen.
extracorporeal membrane oxygenation (ECMO) a technique of providing respiratory support; the blood is circulated through an artificial lung consisting of two compartments separated by a gas-permeable membrane, with the blood on one side and the ventilating gas on the other. It was originally used exclusively in newborns but is now being used more and more in adults.
high pressure oxygenation (hyperbaric oxygenation (HBO)) see hyperbaric oxygenation.
pulsed oxygenation a technique by which oxygen is delivered to the patient only during inhalation rather than continuously during the respiratory cycle; used to conserve oxygen in patients using chronic low-flow oxygen therapy at home.
transtracheal oxygenation a technique of oxygen administration for patients requiring chronic oxygen therapy, in which oxygen is administered at low flow through a catheter passing directly into the trachea. This may be more cosmetic for patients and may require a lower flow of oxygen than other methods such as the use of a nasal cannula.


Abbreviation for hyperbaric oxygen.

Hyperbaric oxygen therapy (HBO)

A form of oxygen therapy in which the patient breathes oxygen in a pressurized chamber.
Mentioned in: Ozone Therapy


Abbreviation for hyperbaric oxygen.
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Golfing in Moray is a world away from life in the spotlight and filming Entourage, which began in 2004 as a 30-minute HBO comedy about a rising Hollywood star and his best friends from New York.
Brooklyn Nine-Nine" star Andy Samberg will be joining the GoT star in the upcoming HBO comedy movie.
Julia Louis-Dreyfus, star of the HBO comedy Veep, is best known for playing Elaine Benes on Seinfeld, a show that famously featured people who were not very admirable to begin with and never improved.
Tracy's television credits include Comedy Central Presents, Late Fridays on NBC, Premium Blend, and Best of the Fest on HBO Comedy and was selected by The Hollywood Reporter as one of the “Ten Comics to Watch.
Romtelecom's clients benefit from HBO and HBO Comedy free of charge until March 31.
Chriqui is best known for her leading role as Sloan in the HBO comedy series "Entourage," and most recently appeared in "The Mentalist"where she will be continuing her role this fall.
Since being in the US, the 46-year-old actor, who was born in Nottingham but grew up in London, has landed key roles in TV series such as apocalyptic police drama Jericho, hugely popular zombie series The Walking Dead (alongside fellow Brit Andrew Lincoln) and HBO comedy Hung.
Summary: "Entourage" kicks off its eighth and final season Sunday, bringing to a close the award-winning HBO comedy drama and its wry look at Hollywood.
HBO Europe offers five high quality movie channels (HBO, HBO2, HBO Comedy, Cinemax and Cinemax2) and six high definition channels (HBO HD, HBO2 HD, HBO3 HD, HBO Comedy HD, Cinemax HD and Cinemax2 HD), as well as the subscription video on demand service HBO ON DEMAND, and the broadband SVOD service, HBO GO.
Twenty-three new standard definition (SD) networks are launching, including Al Jazeera America, BBC World News, Magic Johnson's new network Aspire, HBO Comedy, MLB Network, Outdoor Channel, BabyFirst TV, Action MAX, Starz Cinema, Showtime Family, and Antenna TV featuring classic television series from the 1950s to the 1990s.
Louis-Dreyfus jokingly blamed the blunder on Mike McClintock, the fictional ''Veep'' character played by Matt Walsh who serves as communications director to Louis-Dreyfus' Vice President Selina Meyer on the HBO comedy series.