6Hyperbaric Oxygen (HBO). Hyperbaric Oxygen (HBO). In our office, a portable HBO unit is available for treatment sessions which usually last one hour. During this time the patient is exposed to an increased barometric pressure and is exposed to oxygen blown into the portable unit. Here again, we commit our patients to an initial series of ten treatments after which the patient will be reevaluated. We have shown that this treatment will increase blood flow as measured with before and after SPECT brain scans. Patients respond with more energy, better cognitive function, less fatigue and less pain.Modified:
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