During
hyperbaric oxygen therapy treatments the equine patient is placed in a large
metal chamber that is then pressurized up to two or sometimes three times the
normal atmospheric pressure. The air is replaced with high concentrations of
pure oxygen, and the patient remains in this environment for an hour or more
before the chamber operator depressurizes the unit.
Most equine patients appear calm and relaxed during hyperbaric
oxygen therapy. Equines can return immediately to normal activities.
During this time, oxygen is absorbed
by the blood plasma, cerebrospinal fluid in the brain and spinal cord, and in
lymph and other body fluids delivering more healing oxygen to tissues for cell
repair and metabolism.
Hyperbaric Oxygen Therapy
treatment has three phases:
Compression:
Once the patient is situated comfortably inside, the chamber
door is sealed and pressurization begins. At any time compression can be
slowed or stopped. Compression typically takes about 15 minutes, but can
be tailored to each individual patient.
Treatment:
Once at depth, the patient is put on pure oxygen. The
chamber will be continuously ventilated to ensure the climate in the chamber is
comfortable. Treatment typically takes 90 minutes, but may vary depending
on the prescription.
Decompression:
Once the time at the treatment depth is completed,
depressurization begins. Oxygen is slowly exhausted out of the chamber;
decreasing the pressure and bringing the patient back to the surface.
Decompression typically takes 15 minutes.
The total treatment time lasts from a period of 60 - 90 minutes
and pressures desired by the physician depending on the clinical indication.
Modern day equine hyperbaric oxygen
therapy chambers:
“Safety first and treatment next” is the philosophy adopted in building
equine hyperbaric oxygen therapy chambers in the present day scenario.
Just like treating humans in a multiplace chambers, which is the
most safest method, the same technology is adopted in equine chambers. Modern equine chambers are pressurized with
medical grade air and equines are made to breath pure oxygen via demand masks. In this way, high volumes of oxygen
is being avoided into the chamber and is explosion safe yet
effective as in human chambers. The risks are
completely minimized rassociated with the technology.
Different types of equine hyperbaric oxygen therapy chambers:
1) Fixed single equine chamber:
These types of chambers are permanently installed in a suitable
building.
2) Fixed dual equine chambers:
These types of chambers are permanently installed in a suitable
building but can treat two horses at the same time.
3) Mobile equine chambers.
These chambers are typically installed in large trailers.
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