|CRDAMC Homepage | CRDAMC Library Phone #: (254) 288-8366 | CRDAMC Library Fax #: (254) 288-8368|
Hyperbaric Oxygen Therapy
(Hyperbaric Oxygenation; Hyperbarics; Hyperbaric Medicine; HBOT; HBO2)
Pronounced: hi-purr-BEAR-ick ox-a-jen the-ra-pee
by Annie Stuart
Hyperbaric oxygen therapy (HBOT) involves breathing 100% oxygen in a sealed chamber. This concentration is 5 times higher than the normal air we breathe. The chamber is also pressurized to create 1.5 to 3 times normal atmospheric pressure. These changes can improve blood circulation and the blood’s ability to deliver oxygen to the body.
Reasons for Procedure TOP
This procedure has been used to treat many health problems, including:
Possible Complications TOP
Problems from the procedure are rare, but all procedures have some risk. Your doctor will review potential problems, like:
What to Expect TOP
Prior to Procedure
Description of the Procedure
You will lie down on a padded table, which slides into a tube. This is called a single-person chamber. In some cases, the chamber may be large, holding more than a dozen people.
A technician will gradually pressurize the chamber with 100% oxygen. You will be able to talk to this person. While in the chamber, you will be instructed to:
If you are at high risk for oxygen toxicity, you may be allowed to breathe regular air for brief periods.
Immediately After Procedure TOP
Over a period of several minutes, the technician will slowly depressurize the chamber. You will likely have some ear popping and feel light-headed and tired. However, you should be able to go back to your daily activities. You may have more than one session over a period of several days.
How Long Will It Take? TOP
½ hour to 2 hours
How Much Will It Hurt? TOP
You will not have any pain. Your ears may feel full.
Average Hospital Stay TOP
Unless you have another medical condition, you will be able to go home after HBOT.
Post-procedure Care TOP
In most cases, there is no special care after treatment.
Call Your Doctor TOP
It is important to monitor your recovery. Alert your doctor to any problems. If any of the following occur, call your doctor:
If you think you have an emergency, call for emergency medical services right away.
Divers Alert Network
Undersea and Hyperbaric Medical Society
Hyperbaric oxygen therapy: A guide for patients and providers. University of Iowa Health Care website. Available at: https://uihc.org/health-library/hyperbaric-oxygen-therapy-guide-patients-and-providers. Accessed December 21, 2017.
Hyperbaric oxygen therapy for wound healing. Johns Hopkins Medicine website. Available at: https://www.hopkinsmedicine.org/healthlibrary/test_procedures/neurological/hyperbaric_oxygen_therapy_for_wound_healing_135,44. Accessed December 21, 2017.
Recompression therapy. Merck Manual Professional Version website. Available at:
...(Click grey area to select URL)
Updated July 2017. Accessed December 21, 2017.
Last reviewed December 2017 by EBSCO Medical Review Board Marcin Chwistek, MD
Last Updated: 12/20/2014
EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
To send comments or feedback to our Editorial Team regarding the content please email us at email@example.com. Our Health Library Support team will respond to your email request within 2 business days.