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23 Haziran 2014 Pazartesi

Hyperbaric Oxygen Therapy (HBOT): Hyperbaric Oxygen Therapy for Diabetes-Related Foo...

Hyperbaric Oxygen Therapy (HBOT): Hyperbaric Oxygen Therapy for Diabetes-Related Foo...:


Hyperbaric Oxygen Therapy for Diabetes-Related Foot Wounds





What is hyperbaric oxygen? Hyperbaric oxygen therapy (HBO2) is a medical
treatment in which a patient breathes 100% oxygen while inside a
high-pressure air chamber. HBO2 has been used for more than 40 years to
help people recover from illnesses such as carbon monoxide poisoning.
Today it is also used to treat problem wounds. Studies have shown that
HBO2 can play an important role in the treatment of wounds such as foot
ulcers, which sometimes occur in persons with diabetes. Oxygen applied
directly to body surface areas is not HBO2 therapy and is not considered
useful treatment. How does HBO2 work? The body needs oxygen to heal
itself. White blood cells need oxygen to fight infections. Tissues need
oxygen to repair themselves and make new blood vessels. Without enough
oxygen, wounds do not heal. The air we breathe contains 21% pure oxygen.
Breathing 100% pure oxygen through a facemask increases oxygen in the
bloodstream. Breathing 100% oxygen while in a pressurized chamber gives
patients 10-15 times more oxygen than using just the facemask. That
extra oxygen in the bloodstream is what aids the healing process. How
does HBO2 therapy help diabetic feet?
People with diabetes can develop foot ulcers because of poor circulation
and nerve damage in the feet. A person with loss of feeling in his or
her feet may step on a sharp object or wear ill-fitting shoes and not
feel any pain. The resulting cuts and sores may go unnoticed and become
infected. Some people diabetes cannot get enough oxygen to foot ulcers
because blood vessels in their legs and feet have hardened due to poor
circulation. Blood moves more slowly through these hardened vessels,
depriving the wound of oxygen. HBO2 therapy does not always cure
diabetic foot ulcers, nor is it the first treatment that should be
tried. Foot wounds often require surgery or other treatments. HBO2 does
not work well if these other problems are not solved first. Increasing
blood flow to the wound is important, and staying off of an open foot
wound can also help healing. HBO2 therapy can help deliver extra oxygen
to foot ulcers when other treatments alone are not enough. What are the
chambers like? What does it feel like in there? In a mono-place chamber,
the patient lies on a stretcher that slides into a large tube. This
tube is then pressurized with 100% oxygen. HBO2 therapy is painless. In a
mono-place chamber, the patient lies down comfortably and may listen to
music, watch television, or even take a nap during the therapy session.
They may feel fullness in their ears as they adjust to changes in air
pressure at the start of the session. This is similar to what a patient
feels in an airplane when landing. What if the patient has low blood
glucose while in the chamber? Patients with diabetes have their blood
glucose levels checked before entering the HBO2 chamber. Then, they can
have a snack, if needed, to prevent low blood glucose. If the patient
feels symptoms of low blood glucose or need any other kind of help, they
can communicate with the attendants. HBO2 therapy chambers are
monitored from the outside by people using advanced controls and
computer systems. Mono-place chambers have two-way intercom systems so
that patients can speak with attendants outside the chamber.
Do patients have to do anything special to prepare for HBO2 Therapy?
There are several things to consider before starting HBO2 therapy: 
  • Smoking: Nicotine makes blood vessels narrow. This limits the flow
    of blood and oxygen. Therefore, you should not use tobacco until all
    your HBO2 treatments are completed. 
  • Medications: Some medicines change the way your body handles oxygen.
    It is important for patients to tell their health care team about all
    their medications, including any nonprescription drugs. 
  • Report Illnesses: Cold or flu symptoms such as fever, cough, sore
    throat, nausea, headache or body aches may cause a delay in your
    treatment. These symptoms should be reported to your team as soon as
    possible. • Clothing: Patients will be given special clothes to wear
    during therapy. 
  • Wound Dressings: There is no added benefit from oxygen coming into
    contact with the skin. Therefore, wound dressings are left on during
    treatments. 
  • Personal Items: Most personal belongings aren’t allowed in the HBO2 chamber. Don’t bring in: 
           -  Tobacco products, matches or lighters
           -  Jewelry or other metal objects Electronic items, such as stereos or games
           -  Hair spray, make up, perfumes, deodorants or lotions
           -  Dentures or partial plates
           -  Contact lenses
  • Claustrophobia: If the fear of closed-in places is a problem,
    physicians may prescribe patients medication to relax them. How long
    will I get this therapy? Most wounds require 30-40 HBO2 treatments. The
    treatments are usually given daily, 5-6 days per week, for 90 minutes.
    As the health care team, you will decide how many treatments your
    patients need. Are there any side effects? Some patients report
    crackling or popping in their ears between visits. This can be eased by
    using the same tips shown for dealing with ear problems while in the
    chamber. Patients may have to have tubes put in their ears to relieve
    ear pain. Rarely, patients having HBO2 therapy have temporary changes in
    eyesight. If this happens, vision will return to normal within 6-8
    weeks.