Clinical Study: Mild Hyperbarics for Impaired Brain Function

by Dr. Gunnar Heuser, MD, PhD, FACP
Dr. Gunnar Heuser, a toxic
exposure specialist, documented
results of a series of hyperbaric
treatments on 9 patients suffering
from Impaired Brain Function. The
purpose was to study the effects of
1.3 ATA of hyperbaric therapy on
those patients. His patients
included individuals who suffered
from impairment to brain function
such as memory and balance due to
years of exposure to a variety of
chemicals, pesticides and solvents.
Some patients had developed
attention deficit disorder and may
well have been experiencing
disabling effects that altered their
quality of life, It is important to
note that MRI scans confirmed that
there was no cell death in those
patients, only loss of function.
SPECT imaging
SPECT stands for Single Photon Emission Computed Tomography. A scan is performed by injecting
the patient with a radioactive substance that travels through the brain and distributes itself
according to the circulatory system. The patient’s brain is then scanned and a computer creates a
three dimensional color image that illustrates the blood flow into all areas of the brain. SPECT
imaging helped us by identifying the parts of the brain that are dormant due to a lack of oxygen.
A normal, healthy adult brain should read primarily yellow on a SPECT scan. Green is indicative of
less blood flow and oxygen. Blue and violet represent significantly reduced blood flow in the brain.
Each patient was given a
series of 10 hyperbaric
treatments: one hour per
day for five consecutive
days for two weeks. To
objectively test the effects
of the hyperbaric sessions,
SPECT scans were taken of
each patient’s brain before
and after the series of
Every one of the patients who participated in the study showed improvement after only 10
treatments. Reporting fewer problems with short term memory, balance, headaches, and other
symptoms of poor circulation in the brain. The SPECT scans objectively confirmed an increase in
blood flow and oxygen to effected areas of the brain such as the temporal lobe, the part of the
brain where short term memory is located. The improvements in the temporal lobe seen in the
SPECT scans were verified when the patient regained his short term memory.
The benefits of treating toxic exposure patients with Hyperbaric Therapy appear to be very positive.
I nitial results indicate that Hyperbaric Therapy has a demonstrable and positive effect on some
symptoms such as short term memory loss and balance. This study and additional research will
add to our understanding of the exciting possibilities of Hyperbaric Therapy.

Brain Study-clinicalstudyimpaired brain function.pdf (